epan/dissectors/packet-icmpv6.c

   1 /* packet-icmpv6.c
   2  * Routines for ICMPv6 packet disassembly
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * MobileIPv6 support added by Tomislav Borosa <tomislav.borosa@siemens.hr>
  11  * Copyright 2006, Nicolas DICHTEL - 6WIND - <nicolas.dichtel@6wind.com>
  12  *
  13  * HMIPv6 support added by Martti Kuparinen <martti.kuparinen@iki.fi>
  14  *
  15  * FMIPv6 support added by Martin Andre <andre@clarinet.u-strasbg.fr>
  16  *
  17  * RPL support added by Colin O'Flynn & Owen Kirby.
  18  *
  19  * Enhance ICMPv6 dissector by Alexis La Goutte
  20  *
  21  * This program is free software; you can redistribute it and/or
  22  * modify it under the terms of the GNU General Public License
  23  * as published by the Free Software Foundation; either version 2
  24  * of the License, or (at your option) any later version.
  25  *
  26  * This program is distributed in the hope that it will be useful,
  27  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  28  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  29  * GNU General Public License for more details.
  30  *
  31  * You should have received a copy of the GNU General Public License
  32  * along with this program; if not, write to the Free Software
  33  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  34  */
  35
  36 #ifdef HAVE_CONFIG_H
  37 # include "config.h"
  38 #endif
  39
  40 #include <string.h>
  41
  42 #include <glib.h>
  43
  44 #include <epan/packet.h>
  45 #include <epan/in_cksum.h>
  46 #include <epan/addr_resolv.h>
  47 #include <epan/ipproto.h>
  48 #include <epan/asn1.h>
  49 #include <epan/strutil.h>
  50 #include <epan/expert.h>
  51 #include <epan/conversation.h>
  52 #include <epan/emem.h>
  53 #include <epan/tap.h>
  54
  55 #include "packet-ber.h"
  56 #include "packet-dns.h"
  57 #include "packet-x509af.h"
  58 #include "packet-x509if.h"
  59 #include "packet-icmp.h"    /* same transaction_t used both both v4 and v6 */
  60
  61 /*
  62  * The information used comes from:
  63  * RFC 1885/2463/4443: Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification
  64  * RFC 2461/4861: Neighbor Discovery for IP Version 6 (IPv6)
  65  * RFC 2491: IPv6 over Non-Broadcast Multiple Access (NBMA) networks
  66  * RFC 2710: Multicast Listener Discovery for IPv6
  67  * RFC 2894: Router Renumbering for IPv6
  68  * RFC 3122: Extensions to IPv6 Neighbor Discovery for Inverse Discovery Specification
  69  * RFC 3775: Mobility Support in IPv6
  70  * RFC 3810: Multicast Listener Discovery Version 2 (MLDv2) for IPv6
  71  * RFC 3971: SEcure Neighbor Discovery (SEND)
  72  * RFC 4065: Instructions for Seamoby and Experimental Mobility Protocol IANA Allocations
  73  * RFC 4068/5268/5568: Fast Handovers for Mobile IPv6 (Mobile IPv6 Fast Handovers)
  74  * RFC 4140/5380: Hierarchical Mobile IPv6 Mobility Management (HMIPv6)
  75  * RFC 4191: Default Router Preferences and More-Specific Routes
  76  * RFC 4286: Multicast Router Discovery
  77  * RFC 4620: IPv6 Node Information Queries
  78  * RFC 5006/6106: IPv6 Router Advertisement Options for DNS Configuration
  79  * RFC 5075/5175: IPv6 Router Advertisement Flags Option
  80  * RFC 5269: Distributing a Symmetric Fast Mobile IPv6 (FMIPv6) Handover Key Using SEcure Neighbor Discovery (SEND)
  81  * RFC 5271: Mobile IPv6 Fast Handovers for 3G CDMA Networks
  82  * RFC 6275: Mobility Support in IPv6
  83  * draft-ieft-roll-rpl-19.txt: RPL: IPv6 Routing Protocol for Low power and Lossy Networks
  84  * draft-ietf-csi-proxy-send-05: Secure Proxy ND Support for SEND
  85  * draft-ietf-6lowpan-nd-17: Neighbor Discovery Optimization for Low Power and Lossy Networks (6LoWPAN)
  86  * http://www.iana.org/assignments/icmpv6-parameters (last updated 2011-04-08)
  87  */
  88
  89 static int proto_icmpv6 = -1;
  90 static int hf_icmpv6_type = -1;
  91 static int hf_icmpv6_code = -1;
  92 static int hf_icmpv6_checksum = -1;
  93 static int hf_icmpv6_checksum_bad = -1;
  94 static int hf_icmpv6_reserved = -1;
  95 static int hf_icmpv6_data = -1;
  96 static int hf_icmpv6_unknown_data = -1;
  97 static int hf_icmpv6_mtu = -1;
  98 static int hf_icmpv6_pointer = -1;
  99 static int hf_icmpv6_echo_identifier = -1;
 100 static int hf_icmpv6_echo_sequence_number = -1;
 101 static int hf_icmpv6_nonce = -1;
 102
 103 /* RFC 2461/4861 : Neighbor Discovery for IP version 6 (IPv6) */
 104 static int hf_icmpv6_nd_ra_cur_hop_limit = -1;
 105 static int hf_icmpv6_nd_ra_flag = -1;
 106 static int hf_icmpv6_nd_ra_flag_m = -1;
 107 static int hf_icmpv6_nd_ra_flag_o = -1;
 108 static int hf_icmpv6_nd_ra_flag_h = -1;
 109 static int hf_icmpv6_nd_ra_flag_prf = -1;
 110 static int hf_icmpv6_nd_ra_flag_p = -1;
 111 static int hf_icmpv6_nd_ra_flag_rsv = -1;
 112 static int hf_icmpv6_nd_ra_router_lifetime = -1;
 113 static int hf_icmpv6_nd_ra_reachable_time = -1;
 114 static int hf_icmpv6_nd_ra_retrans_timer = -1;
 115 static int hf_icmpv6_nd_ns_target_address = -1;
 116 static int hf_icmpv6_nd_na_flag = -1;
 117 static int hf_icmpv6_nd_na_flag_r = -1;
 118 static int hf_icmpv6_nd_na_flag_s = -1;
 119 static int hf_icmpv6_nd_na_flag_o = -1;
 120 static int hf_icmpv6_nd_na_flag_rsv = -1;
 121 static int hf_icmpv6_nd_na_target_address = -1;
 122 static int hf_icmpv6_nd_rd_target_address = -1;
 123 static int hf_icmpv6_nd_rd_destination_address = -1;
 124
 125 /* ND Options */
 126 static int hf_icmpv6_opt = -1;
 127 static int hf_icmpv6_opt_type = -1;
 128 static int hf_icmpv6_opt_length = -1;
 129 static int hf_icmpv6_opt_linkaddr_mac = -1;
 130 static int hf_icmpv6_opt_src_linkaddr_mac = -1;
 131 static int hf_icmpv6_opt_target_linkaddr_mac = -1;
 132 static int hf_icmpv6_opt_linkaddr = -1;
 133 static int hf_icmpv6_opt_src_linkaddr = -1;
 134 static int hf_icmpv6_opt_target_linkaddr = -1;
 135 static int hf_icmpv6_opt_linkaddr_eui64 = -1;
 136 static int hf_icmpv6_opt_src_linkaddr_eui64 = -1;
 137 static int hf_icmpv6_opt_target_linkaddr_eui64 = -1;
 138 static int hf_icmpv6_opt_prefix_len = -1;
 139 static int hf_icmpv6_opt_prefix_flag = -1;
 140 static int hf_icmpv6_opt_prefix_flag_l = -1;
 141 static int hf_icmpv6_opt_prefix_flag_a = -1;
 142 static int hf_icmpv6_opt_prefix_flag_r = -1;
 143 static int hf_icmpv6_opt_prefix_flag_reserved = -1;
 144 static int hf_icmpv6_opt_prefix_valid_lifetime = -1;
 145 static int hf_icmpv6_opt_prefix_preferred_lifetime = -1;
 146 static int hf_icmpv6_opt_prefix = -1;
 147 static int hf_icmpv6_opt_naack_option_code = -1;
 148 static int hf_icmpv6_opt_naack_status = -1;
 149 static int hf_icmpv6_opt_naack_supplied_ncoa = -1;
 150 static int hf_icmpv6_opt_cga_pad_len = -1;
 151 static int hf_icmpv6_opt_cga = -1;
 152 static int hf_icmpv6_opt_cga_modifier = -1;
 153 static int hf_icmpv6_opt_cga_subnet_prefix = -1;
 154 static int hf_icmpv6_opt_cga_count = -1;
 155 static int hf_icmpv6_opt_cga_ext_type = -1;
 156 static int hf_icmpv6_opt_cga_ext_length = -1;
 157 static int hf_icmpv6_opt_cga_ext_data = -1;
 158 static int hf_icmpv6_opt_rsa_key_hash = -1;
 159 static int hf_icmpv6_opt_digital_signature_padding = -1;
 160 static int hf_icmpv6_opt_ps_key_hash = -1;
 161 static int hf_icmpv6_opt_timestamp = -1;
 162 static int hf_icmpv6_opt_nonce = -1;
 163 static int hf_icmpv6_opt_certificate_padding = -1;
 164 static int hf_icmpv6_opt_ipa_option_code = -1;
 165 static int hf_icmpv6_opt_ipa_prefix_len = -1;
 166 static int hf_icmpv6_opt_ipa_ipv6_address = -1;
 167 static int hf_icmpv6_opt_nrpi_option_code = -1;
 168 static int hf_icmpv6_opt_nrpi_prefix_len = -1;
 169 static int hf_icmpv6_opt_nrpi_prefix = -1;
 170 static int hf_icmpv6_opt_lla_option_code = -1;
 171 static int hf_icmpv6_opt_lla_bytes = -1;
 172 static int hf_icmpv6_opt_map_dist = -1;
 173 static int hf_icmpv6_opt_map_pref = -1;
 174 static int hf_icmpv6_opt_map_flag = -1;
 175 static int hf_icmpv6_opt_map_flag_r = -1;
 176 static int hf_icmpv6_opt_map_flag_reserved = -1;
 177 static int hf_icmpv6_opt_map_valid_lifetime = -1;
 178 static int hf_icmpv6_opt_map_global_address = -1;
 179 static int hf_icmpv6_opt_route_info_flag = -1;
 180 static int hf_icmpv6_opt_route_info_flag_route_preference = -1;
 181 static int hf_icmpv6_opt_route_info_flag_reserved = -1;
 182 static int hf_icmpv6_opt_route_lifetime = -1;
 183 static int hf_icmpv6_opt_name_type = -1;
 184 static int hf_icmpv6_opt_name_x501 = -1;
 185 static int hf_icmpv6_opt_name_fqdn = -1;
 186 static int hf_icmpv6_opt_cert_type = -1;
 187 static int hf_icmpv6_x509if_Name = -1;
 188 static int hf_icmpv6_x509af_Certificate = -1;
 189 static int hf_icmpv6_opt_redirected_packet = -1;
 190 static int hf_icmpv6_opt_mtu = -1;
 191 static int hf_icmpv6_opt_nbma_shortcut_limit = -1;
 192 static int hf_icmpv6_opt_advertisement_interval = -1;
 193 static int hf_icmpv6_opt_home_agent_preference = -1;
 194 static int hf_icmpv6_opt_home_agent_lifetime = -1;
 195 static int hf_icmpv6_opt_ipv6_address = -1;
 196 static int hf_icmpv6_opt_reserved = -1;
 197 static int hf_icmpv6_opt_padding = -1;
 198 static int hf_icmpv6_opt_rdnss_lifetime = -1;
 199 static int hf_icmpv6_opt_rdnss = -1;
 200 static int hf_icmpv6_opt_efo = -1;
 201 static int hf_icmpv6_opt_efo_m = -1;
 202 static int hf_icmpv6_opt_efo_o = -1;
 203 static int hf_icmpv6_opt_efo_h = -1;
 204 static int hf_icmpv6_opt_efo_prf = -1;
 205 static int hf_icmpv6_opt_efo_p = -1;
 206 static int hf_icmpv6_opt_efo_rsv = -1;
 207 static int hf_icmpv6_opt_hkr_pad_length = -1;
 208 static int hf_icmpv6_opt_hkr_at = -1;
 209 static int hf_icmpv6_opt_hkr_reserved = -1;
 210 static int hf_icmpv6_opt_hkr_encryption_public_key = -1;
 211 static int hf_icmpv6_opt_hkr_padding = -1;
 212 static int hf_icmpv6_opt_hkr_lifetime = -1;
 213 static int hf_icmpv6_opt_hkr_encrypted_handover_key = -1;
 214 static int hf_icmpv6_opt_hai_option_code = -1;
 215 static int hf_icmpv6_opt_hai_length = -1;
 216 static int hf_icmpv6_opt_hai_value = -1;
 217 static int hf_icmpv6_opt_mn_option_code = -1;
 218 static int hf_icmpv6_opt_mn_length = -1;
 219 static int hf_icmpv6_opt_mn_value = -1;
 220 static int hf_icmpv6_opt_dnssl_lifetime = -1;
 221 static int hf_icmpv6_opt_dnssl = -1;
 222
 223 static int hf_icmpv6_opt_aro_status = -1;
 224 static int hf_icmpv6_opt_aro_registration_lifetime = -1;
 225 static int hf_icmpv6_opt_aro_eui64 = -1;
 226 static int hf_icmpv6_opt_6co_context_length = -1;
 227 static int hf_icmpv6_opt_6co_flag = -1;
 228 static int hf_icmpv6_opt_6co_flag_c = -1;
 229 static int hf_icmpv6_opt_6co_flag_cid = -1;
 230 static int hf_icmpv6_opt_6co_flag_reserved = -1;
 231 static int hf_icmpv6_opt_6co_valid_lifetime = -1;
 232 static int hf_icmpv6_opt_6co_context_prefix  = -1;
 233 static int hf_icmpv6_opt_abro_version = -1;
 234 static int hf_icmpv6_opt_abro_6lbr_address = -1;
 235
 236
 237 /* RFC 2710: Multicast Listener Discovery for IPv6 */
 238 static int hf_icmpv6_mld_mrd = -1;
 239 static int hf_icmpv6_mld_multicast_address = -1;
 240
 241 /* RFC 2894: Router Renumbering for IPv6 */
 242 static int hf_icmpv6_rr_sequencenumber = -1;
 243 static int hf_icmpv6_rr_segmentnumber = -1;
 244 static int hf_icmpv6_rr_flag = -1;
 245 static int hf_icmpv6_rr_flag_t = -1;
 246 static int hf_icmpv6_rr_flag_r = -1;
 247 static int hf_icmpv6_rr_flag_a = -1;
 248 static int hf_icmpv6_rr_flag_s = -1;
 249 static int hf_icmpv6_rr_flag_p = -1;
 250 static int hf_icmpv6_rr_flag_rsv = -1;
 251 static int hf_icmpv6_rr_maxdelay = -1;
 252 static int hf_icmpv6_rr_pco_mp_part = -1;
 253 static int hf_icmpv6_rr_pco_mp_opcode = -1;
 254 static int hf_icmpv6_rr_pco_mp_oplength = -1;
 255 static int hf_icmpv6_rr_pco_mp_ordinal = -1;
 256 static int hf_icmpv6_rr_pco_mp_matchlen = -1;
 257 static int hf_icmpv6_rr_pco_mp_minlen = -1;
 258 static int hf_icmpv6_rr_pco_mp_maxlen = -1;
 259 static int hf_icmpv6_rr_pco_mp_matchprefix = -1;
 260 static int hf_icmpv6_rr_pco_up_part = -1;
 261 static int hf_icmpv6_rr_pco_up_uselen = -1;
 262 static int hf_icmpv6_rr_pco_up_keeplen = -1;
 263 static int hf_icmpv6_rr_pco_up_flagmask = -1;
 264 static int hf_icmpv6_rr_pco_up_flagmask_l = -1;
 265 static int hf_icmpv6_rr_pco_up_flagmask_a = -1;
 266 static int hf_icmpv6_rr_pco_up_flagmask_reserved = -1;
 267 static int hf_icmpv6_rr_pco_up_raflags = -1;
 268 static int hf_icmpv6_rr_pco_up_raflags_l = -1;
 269 static int hf_icmpv6_rr_pco_up_raflags_a = -1;
 270 static int hf_icmpv6_rr_pco_up_raflags_reserved = -1;
 271 static int hf_icmpv6_rr_pco_up_validlifetime = -1;
 272 static int hf_icmpv6_rr_pco_up_preferredlifetime = -1;
 273 static int hf_icmpv6_rr_pco_up_flag = -1;
 274 static int hf_icmpv6_rr_pco_up_flag_v = -1;
 275 static int hf_icmpv6_rr_pco_up_flag_p = -1;
 276 static int hf_icmpv6_rr_pco_up_flag_reserved = -1;
 277 static int hf_icmpv6_rr_pco_up_useprefix = -1;
 278 static int hf_icmpv6_rr_rm = -1;
 279 static int hf_icmpv6_rr_rm_flag = -1;
 280 static int hf_icmpv6_rr_rm_flag_b = -1;
 281 static int hf_icmpv6_rr_rm_flag_f = -1;
 282 static int hf_icmpv6_rr_rm_flag_reserved = -1;
 283 static int hf_icmpv6_rr_rm_ordinal = -1;
 284 static int hf_icmpv6_rr_rm_matchedlen = -1;
 285 static int hf_icmpv6_rr_rm_interfaceindex = -1;
 286 static int hf_icmpv6_rr_rm_matchedprefix = -1;
 287
 288 /* RFC 3810: Multicast Listener Discovery Version 2 (MLDv2) for IPv6 */
 289 static int hf_icmpv6_mld_mrc = -1;
 290 static int hf_icmpv6_mld_flag = -1;
 291 static int hf_icmpv6_mld_flag_s = -1;
 292 static int hf_icmpv6_mld_flag_qrv = -1;
 293 static int hf_icmpv6_mld_flag_rsv = -1;
 294 static int hf_icmpv6_mld_qqi = -1;
 295 static int hf_icmpv6_mld_nb_sources = -1;
 296 static int hf_icmpv6_mld_source_address = -1;
 297 static int hf_icmpv6_mldr_nb_mcast_records = -1;
 298 static int hf_icmpv6_mldr_mar = -1;
 299 static int hf_icmpv6_mldr_mar_record_type = -1;
 300 static int hf_icmpv6_mldr_mar_aux_data_len = -1;
 301 static int hf_icmpv6_mldr_mar_nb_sources = -1;
 302 static int hf_icmpv6_mldr_mar_multicast_address = -1;
 303 static int hf_icmpv6_mldr_mar_source_address = -1;
 304 static int hf_icmpv6_mldr_mar_auxiliary_data = -1;
 305
 306 /* RFC3775: Mobility Support in IPv6 */
 307 static int hf_icmpv6_mip6_identifier = -1;
 308 static int hf_icmpv6_mip6_home_agent_address = -1;
 309 static int hf_icmpv6_mip6_flag = -1;
 310 static int hf_icmpv6_mip6_flag_m = -1;
 311 static int hf_icmpv6_mip6_flag_o = -1;
 312 static int hf_icmpv6_mip6_flag_rsv = -1;
 313
 314 /* RFC3971: SEcure Neighbor Discovery (SEND) */
 315 static int hf_icmpv6_send_identifier = -1;
 316 static int hf_icmpv6_send_all_components = -1;
 317 static int hf_icmpv6_send_component = -1;
 318
 319 /* RFC 4068/5268/5568: Fast Handovers for Mobile IPv6 ( Mobile IPv6 Fast Handovers ) */
 320 static int hf_icmpv6_fmip6_subtype = -1;
 321 static int hf_icmpv6_fmip6_hi_flag = -1;
 322 static int hf_icmpv6_fmip6_hi_flag_s = -1;
 323 static int hf_icmpv6_fmip6_hi_flag_u = -1;
 324 static int hf_icmpv6_fmip6_hi_flag_reserved = -1;
 325 static int hf_icmpv6_fmip6_identifier = -1;
 326
 327 /* RFC 4286: Multicast Router Discovery */
 328 static int hf_icmpv6_mcast_ra_query_interval = -1;
 329 static int hf_icmpv6_mcast_ra_robustness_variable = -1;
 330
 331 /* RFC 4620: IPv6 Node Information Queries */
 332 static int hf_icmpv6_ni_qtype = -1;
 333 static int hf_icmpv6_ni_flag = -1;
 334 static int hf_icmpv6_ni_flag_g = -1;
 335 static int hf_icmpv6_ni_flag_s = -1;
 336 static int hf_icmpv6_ni_flag_l = -1;
 337 static int hf_icmpv6_ni_flag_c = -1;
 338 static int hf_icmpv6_ni_flag_a = -1;
 339 static int hf_icmpv6_ni_flag_t = -1;
 340 static int hf_icmpv6_ni_flag_rsv = -1;
 341 static int hf_icmpv6_ni_nonce = -1;
 342 static int hf_icmpv6_ni_query_subject_ipv6 = -1;
 343 static int hf_icmpv6_ni_query_subject_fqdn = -1;
 344 static int hf_icmpv6_ni_query_subject_ipv4 = -1;
 345 static int hf_icmpv6_ni_reply_node_ttl = -1;
 346 static int hf_icmpv6_ni_reply_node_name = -1;
 347 static int hf_icmpv6_ni_reply_node_address = -1;
 348 static int hf_icmpv6_ni_reply_ipv4_address = -1;
 349
 350 /* RPL: draft-ietf-roll-rpl-19.txt: Routing over Low-Power and Lossy Networks. */
 351 static int hf_icmpv6_rpl_dis_flag = -1;
 352 static int hf_icmpv6_rpl_dio_instance = -1;
 353 static int hf_icmpv6_rpl_dio_version = -1;
 354 static int hf_icmpv6_rpl_dio_rank = -1;
 355 static int hf_icmpv6_rpl_dio_flag = -1;
 356 static int hf_icmpv6_rpl_dio_flag_g = -1;
 357 static int hf_icmpv6_rpl_dio_flag_0 = -1;
 358 static int hf_icmpv6_rpl_dio_flag_mop = -1;
 359 static int hf_icmpv6_rpl_dio_flag_prf = -1;
 360 static int hf_icmpv6_rpl_dio_dtsn = -1;
 361 static int hf_icmpv6_rpl_dio_dagid = -1;
 362 static int hf_icmpv6_rpl_dao_instance = -1;
 363 static int hf_icmpv6_rpl_dao_flag = -1;
 364 static int hf_icmpv6_rpl_dao_flag_k = -1;
 365 static int hf_icmpv6_rpl_dao_flag_d = -1;
 366 static int hf_icmpv6_rpl_dao_flag_rsv = -1;
 367 static int hf_icmpv6_rpl_dao_sequence = -1;
 368 static int hf_icmpv6_rpl_dao_dodagid = -1;
 369 static int hf_icmpv6_rpl_daoack_instance = -1;
 370 static int hf_icmpv6_rpl_daoack_flag = -1;
 371 static int hf_icmpv6_rpl_daoack_flag_d = -1;
 372 static int hf_icmpv6_rpl_daoack_flag_rsv = -1;
 373 static int hf_icmpv6_rpl_daoack_sequence = -1;
 374 static int hf_icmpv6_rpl_daoack_status = -1;
 375 static int hf_icmpv6_rpl_daoack_dodagid = -1;
 376 static int hf_icmpv6_rpl_cc_instance = -1;
 377 static int hf_icmpv6_rpl_cc_flag = -1;
 378 static int hf_icmpv6_rpl_cc_flag_r = -1;
 379 static int hf_icmpv6_rpl_cc_flag_rsv = -1;
 380 static int hf_icmpv6_rpl_cc_nonce = -1;
 381 static int hf_icmpv6_rpl_cc_dodagid = -1;
 382 static int hf_icmpv6_rpl_cc_destination_counter = -1;
 383 static int hf_icmpv6_rpl_secure_flag = -1;
 384 static int hf_icmpv6_rpl_secure_flag_t = -1;
 385 static int hf_icmpv6_rpl_secure_flag_rsv = -1;
 386 static int hf_icmpv6_rpl_secure_algorithm = -1;
 387 static int hf_icmpv6_rpl_secure_algorithm_encryption = -1;
 388 static int hf_icmpv6_rpl_secure_algorithm_signature = -1;
 389 static int hf_icmpv6_rpl_secure_kim = -1;
 390 static int hf_icmpv6_rpl_secure_lvl = -1;
 391 static int hf_icmpv6_rpl_secure_rsv = -1;
 392 static int hf_icmpv6_rpl_secure_counter = -1;
 393 static int hf_icmpv6_rpl_secure_key_source = -1;
 394 static int hf_icmpv6_rpl_secure_key_index = -1;
 395 static int hf_icmpv6_rpl_opt = -1;
 396 static int hf_icmpv6_rpl_opt_type = -1;
 397 static int hf_icmpv6_rpl_opt_length = -1;
 398 static int hf_icmpv6_rpl_opt_reserved = -1;
 399 static int hf_icmpv6_rpl_opt_padn = -1;
 400 static int hf_icmpv6_rpl_opt_route_prefix_length = -1;
 401 static int hf_icmpv6_rpl_opt_route_flag = -1;
 402 static int hf_icmpv6_rpl_opt_route_pref = -1;
 403 static int hf_icmpv6_rpl_opt_route_reserved = -1;
 404 static int hf_icmpv6_rpl_opt_route_lifetime = -1;
 405 static int hf_icmpv6_rpl_opt_route_prefix = -1;
 406 static int hf_icmpv6_rpl_opt_config_flag = -1;
 407 static int hf_icmpv6_rpl_opt_config_reserved = -1;
 408 static int hf_icmpv6_rpl_opt_config_auth = -1;
 409 static int hf_icmpv6_rpl_opt_config_pcs = -1;
 410 static int hf_icmpv6_rpl_opt_config_doublings = -1;
 411 static int hf_icmpv6_rpl_opt_config_min_interval = -1;
 412 static int hf_icmpv6_rpl_opt_config_redundancy = -1;
 413 static int hf_icmpv6_rpl_opt_config_rank_incr = -1;
 414 static int hf_icmpv6_rpl_opt_config_hop_rank_inc = -1;
 415 static int hf_icmpv6_rpl_opt_config_ocp = -1;
 416 static int hf_icmpv6_rpl_opt_config_rsv = -1;
 417 static int hf_icmpv6_rpl_opt_config_def_lifetime = -1;
 418 static int hf_icmpv6_rpl_opt_config_lifetime_unit = -1;
 419 static int hf_icmpv6_rpl_opt_target_flag = -1;
 420 static int hf_icmpv6_rpl_opt_target_prefix_length = -1;
 421 static int hf_icmpv6_rpl_opt_target_prefix = -1;
 422 static int hf_icmpv6_rpl_opt_transit_flag = -1;
 423 static int hf_icmpv6_rpl_opt_transit_flag_e = -1;
 424 static int hf_icmpv6_rpl_opt_transit_flag_rsv = -1;
 425 static int hf_icmpv6_rpl_opt_transit_pathseq = -1;
 426 static int hf_icmpv6_rpl_opt_transit_pathctl = -1;
 427 static int hf_icmpv6_rpl_opt_transit_pathlifetime = -1;
 428 static int hf_icmpv6_rpl_opt_transit_parent = -1;
 429 static int hf_icmpv6_rpl_opt_solicited_instance = -1;
 430 static int hf_icmpv6_rpl_opt_solicited_flag = -1;
 431 static int hf_icmpv6_rpl_opt_solicited_flag_v = -1;
 432 static int hf_icmpv6_rpl_opt_solicited_flag_i = -1;
 433 static int hf_icmpv6_rpl_opt_solicited_flag_d = -1;
 434 static int hf_icmpv6_rpl_opt_solicited_flag_rsv = -1;
 435 static int hf_icmpv6_rpl_opt_solicited_dodagid = -1;
 436 static int hf_icmpv6_rpl_opt_solicited_version = -1;
 437 static int hf_icmpv6_rpl_opt_prefix = -1;
 438 static int hf_icmpv6_rpl_opt_prefix_flag = -1;
 439 static int hf_icmpv6_rpl_opt_prefix_flag_l = -1;
 440 static int hf_icmpv6_rpl_opt_prefix_flag_a = -1;
 441 static int hf_icmpv6_rpl_opt_prefix_flag_r = -1;
 442 static int hf_icmpv6_rpl_opt_prefix_flag_rsv = -1;
 443 static int hf_icmpv6_rpl_opt_prefix_vlifetime = -1;
 444 static int hf_icmpv6_rpl_opt_prefix_plifetime = -1;
 445 static int hf_icmpv6_rpl_opt_prefix_length = -1;
 446 static int hf_icmpv6_rpl_opt_targetdesc = -1;
 447
 448 static int hf_icmpv6_da_status = -1;
 449 static int hf_icmpv6_da_rsv = -1;
 450 static int hf_icmpv6_da_lifetime = -1;
 451 static int hf_icmpv6_da_eui64 = -1;
 452 static int hf_icmpv6_da_raddr = -1;
 453
 454 static int icmpv6_tap = -1;
 455
 456 /* Conversation related data */
 457 static int hf_icmpv6_resp_in = -1;
 458 static int hf_icmpv6_resp_to = -1;
 459 static int hf_icmpv6_resptime = -1;
 460
 461 typedef struct _icmpv6_conv_info_t {
 462     emem_tree_t *pdus;
 463 } icmpv6_conv_info_t;
 464
 465 static icmp_transaction_t *transaction_start(packet_info *pinfo, proto_tree *tree, guint32 *key);
 466 static icmp_transaction_t *transaction_end(packet_info *pinfo, proto_tree *tree, guint32 *key);
 467
 468 static gint ett_icmpv6 = -1;
 469 static gint ett_icmpv6_opt = -1;
 470 static gint ett_icmpv6_mar = -1;
 471 static gint ett_icmpv6_flag_prefix = -1;
 472 static gint ett_icmpv6_flag_map = -1;
 473 static gint ett_icmpv6_flag_route_info = -1;
 474 static gint ett_icmpv6_flag_6lowpan = -1;
 475 static gint ett_icmpv6_flag_efo = -1;
 476 static gint ett_icmpv6_rpl_opt = -1;
 477 static gint ett_icmpv6_rpl_flag_routing = -1;
 478 static gint ett_icmpv6_rpl_flag_config = -1;
 479 static gint ett_icmpv6_rpl_flag_transit = -1;
 480 static gint ett_icmpv6_rpl_flag_solicited = -1;
 481 static gint ett_icmpv6_rpl_flag_prefix = -1;
 482 static gint ett_icmpv6_flag_ni = -1;
 483 static gint ett_icmpv6_flag_rr = -1;
 484 static gint ett_icmpv6_rr_mp = -1;
 485 static gint ett_icmpv6_rr_up = -1;
 486 static gint ett_icmpv6_rr_up_flag_mask = -1;
 487 static gint ett_icmpv6_rr_up_flag_ra = -1;
 488 static gint ett_icmpv6_rr_up_flag = -1;
 489 static gint ett_icmpv6_rr_rm = -1;
 490 static gint ett_icmpv6_rr_rm_flag = -1;
 491 static gint ett_icmpv6_flag_mld = -1;
 492 static gint ett_icmpv6_flag_ra = -1;
 493 static gint ett_icmpv6_flag_na = -1;
 494 static gint ett_icmpv6_flag_mip6 = -1;
 495 static gint ett_icmpv6_flag_fmip6 = -1;
 496 static gint ett_icmpv6_flag_secure = -1;
 497 static gint ett_icmpv6_flag_rpl_dio = -1;
 498 static gint ett_icmpv6_flag_rpl_dao = -1;
 499 static gint ett_icmpv6_flag_rpl_daoack = -1;
 500 static gint ett_icmpv6_flag_rpl_cc = -1;
 501 static gint ett_icmpv6_opt_name = -1;
 502 static gint ett_icmpv6_cga_param_name = -1;
 503
 504 static dissector_handle_t ipv6_handle;
 505 static dissector_handle_t data_handle;
 506
 507 #define ICMP6_DST_UNREACH                 1
 508 #define ICMP6_PACKET_TOO_BIG              2
 509 #define ICMP6_TIME_EXCEEDED               3
 510 #define ICMP6_PARAM_PROB                  4
 511 #define ICMP6_ECHO_REQUEST              128
 512 #define ICMP6_ECHO_REPLY                129
 513 #define ICMP6_MEMBERSHIP_QUERY          130
 514 #define ICMP6_MEMBERSHIP_REPORT         131
 515 #define ICMP6_MEMBERSHIP_REDUCTION      132
 516 #define ICMP6_ND_ROUTER_SOLICIT         133
 517 #define ICMP6_ND_ROUTER_ADVERT          134
 518 #define ICMP6_ND_NEIGHBOR_SOLICIT       135
 519 #define ICMP6_ND_NEIGHBOR_ADVERT        136
 520 #define ICMP6_ND_REDIRECT               137
 521 #define ICMP6_ROUTER_RENUMBERING        138
 522 #define ICMP6_NI_QUERY                  139
 523 #define ICMP6_NI_REPLY                  140
 524 #define ICMP6_IND_SOLICIT               141
 525 #define ICMP6_IND_ADVERT                142
 526 #define ICMP6_MLDV2_REPORT              143
 527 #define ICMP6_MIP6_DHAAD_REQUEST        144
 528 #define ICMP6_MIP6_DHAAD_REPLY          145
 529 #define ICMP6_MIP6_MPS                  146
 530 #define ICMP6_MIP6_MPA                  147
 531 #define ICMP6_CERT_PATH_SOL             148
 532 #define ICMP6_CERT_PATH_AD              149
 533 #define ICMP6_EXPERIMENTAL_MOBILITY     150
 534 #define ICMP6_MCAST_ROUTER_ADVERT       151
 535 #define ICMP6_MCAST_ROUTER_SOLICIT      152
 536 #define ICMP6_MCAST_ROUTER_TERM         153
 537 #define ICMP6_FMIPV6_MESSAGES           154
 538 #define ICMP6_RPL_CONTROL               155
 539 #define ICMP6_6LOWPANND_DAR             156 /* Pending IANA assignment */
 540 #define ICMP6_6LOWPANND_DAC             157 /* Pending IANA assignment */
 541
 542
 543 static const value_string icmpv6_type_val[] = {
 544     { ICMP6_DST_UNREACH,           "Destination Unreachable" },                         /* [RFC4443] */
 545     { ICMP6_PACKET_TOO_BIG,        "Packet Too Big" },                                  /* [RFC4443] */
 546     { ICMP6_TIME_EXCEEDED,         "Time Exceeded" },                                   /* [RFC4443] */
 547     { ICMP6_PARAM_PROB,            "Parameter Problem" },                               /* [RFC4443] */
 548     { 100,                         "Private experimentation" },                         /* [RFC4443] */
 549     { 101,                         "Private experimentation" },                         /* [RFC4443] */
 550     { 127,                         "Reserved for expansion of ICMPv6 error messages" }, /* [RFC4443] */
 551     { ICMP6_ECHO_REQUEST,          "Echo (ping) request" },                             /* [RFC4443] */
 552     { ICMP6_ECHO_REPLY,            "Echo (ping) reply" },                               /* [RFC4443] */
 553     { ICMP6_MEMBERSHIP_QUERY,      "Multicast Listener Query" },                        /* [RFC2710] */
 554     { ICMP6_MEMBERSHIP_REPORT,     "Multicast Listener Report" },                       /* [RFC2710] */
 555     { ICMP6_MEMBERSHIP_REDUCTION,  "Multicast Listener Done" },                         /* [RFC2710] */
 556     { ICMP6_ND_ROUTER_SOLICIT,     "Router Solicitation" },                             /* [RFC4861] */
 557     { ICMP6_ND_ROUTER_ADVERT,      "Router Advertisement" },                            /* [RFC4861] */
 558     { ICMP6_ND_NEIGHBOR_SOLICIT,   "Neighbor Solicitation" },                           /* [RFC4861] */
 559     { ICMP6_ND_NEIGHBOR_ADVERT,    "Neighbor Advertisement" },                          /* [RFC4861] */
 560     { ICMP6_ND_REDIRECT,           "Redirect" },                                        /* [RFC4861] */
 561     { ICMP6_ROUTER_RENUMBERING,    "Router Renumbering" },                              /* [RFC2894] */
 562     { ICMP6_NI_QUERY,              "Node Information Query" },                          /* [RFC4620] */
 563     { ICMP6_NI_REPLY,              "Node Information Reply" },                          /* [RFC4620] */
 564     { ICMP6_IND_SOLICIT,           "Inverse Neighbor Discovery Solicitation" },         /* [RFC3122] */
 565     { ICMP6_IND_ADVERT,            "Inverse Neighbor Discovery Advertisement" },        /* [RFC3122] */
 566     { ICMP6_MLDV2_REPORT,          "Multicast Listener Report Message v2" },            /* [RFC3810] */
 567     { ICMP6_MIP6_DHAAD_REQUEST,    "Home Agent Address Discovery Request" },            /* [RFC3775] */
 568     { ICMP6_MIP6_DHAAD_REPLY,      "Home Agent Address Discovery Reply" },              /* [RFC3775] */
 569     { ICMP6_MIP6_MPS,              "Mobile Prefix Solicitation" },                      /* [RFC3775] */
 570     { ICMP6_MIP6_MPA,              "Mobile Prefix Advertisement" },                     /* [RFC3775] */
 571     { ICMP6_CERT_PATH_SOL,         "Certification Path Solicitation" },                 /* [RFC3971] */
 572     { ICMP6_CERT_PATH_AD,          "Certification Path Advertisement" },                /* [RFC3971] */
 573     { ICMP6_EXPERIMENTAL_MOBILITY, "Experimental Mobility" },                           /* [RFC4065] */
 574     { ICMP6_MCAST_ROUTER_ADVERT,   "Multicast Router Advertisement" },                  /* [RFC4286] */
 575     { ICMP6_MCAST_ROUTER_SOLICIT,  "Multicast Router Solicitation" },                   /* [RFC4286] */
 576     { ICMP6_MCAST_ROUTER_TERM,     "Multicast Router Termination" },                    /* [RFC4286] */
 577     { ICMP6_FMIPV6_MESSAGES,       "FMIPv6" },                                          /* [RFC5568] */
 578     { ICMP6_RPL_CONTROL,           "RPL Control" },                                     /* draft-ieft-roll-rpl-19.txt Pending IANA */
 579     { ICMP6_6LOWPANND_DAR,         "Duplicate Address Request"},                        /* draft-ietf-6lowpan-nd-17.txt Pending IANA */
 580     { ICMP6_6LOWPANND_DAC,         "Duplicate Address Confirmation"},                   /* draft-ietf-6lowpan-nd-17.txt Pending IANA */
 581     { 200,                         "Private experimentation" },                         /* [RFC4443] */
 582     { 201,                         "Private experimentation" },                         /* [RFC4443] */
 583     { 255,                         "Reserved for expansion of ICMPv6 informational messages" }, /* [RFC4443] */
 584     { 0, NULL }
 585 };
 586
 587 #define ICMP6_DST_UNREACH_NOROUTE               0       /* no route to destination */
 588 #define ICMP6_DST_UNREACH_ADMIN                 1       /* administratively prohibited */
 589 #define ICMP6_DST_UNREACH_NOTNEIGHBOR           2       /* not a neighbor(obsolete) */
 590 #define ICMP6_DST_UNREACH_BEYONDSCOPE           2       /* beyond scope of source address */
 591 #define ICMP6_DST_UNREACH_ADDR                  3       /* address unreachable */
 592 #define ICMP6_DST_UNREACH_NOPORT                4       /* port unreachable */
 593 #define ICMP6_DST_UNREACH_INGR_EGR              5       /* source address failed ingress/egress policy */
 594 #define ICMP6_DST_UNREACH_REJECT                6       /* reject route to destination */
 595 #define ICMP6_DST_UNREACH_ERROR                 7       /* error in Source Routing Header */
 596
 597 static const value_string icmpv6_unreach_code_val[] = {
 598     { ICMP6_DST_UNREACH_NOROUTE,     "no route to destination" },
 599     { ICMP6_DST_UNREACH_ADMIN,       "Administratively prohibited" },
 600     { ICMP6_DST_UNREACH_BEYONDSCOPE, "Beyond scope of source address" },
 601     { ICMP6_DST_UNREACH_ADDR,        "Address unreachable" },
 602     { ICMP6_DST_UNREACH_NOPORT,      "Port unreachable" },
 603     { ICMP6_DST_UNREACH_INGR_EGR,    "Source address failed ingress/egress policy" },
 604     { ICMP6_DST_UNREACH_REJECT,      "Reject route to destination" },
 605     { ICMP6_DST_UNREACH_ERROR,       "Error in Source Routing Header" }, /* [draft-ieft-roll-rpl-19.txt] */
 606     { 0, NULL }
 607 };
 608
 609 #define ICMP6_TIME_EXCEED_TRANSIT       0       /* ttl==0 in transit */
 610 #define ICMP6_TIME_EXCEED_REASSEMBLY    1       /* ttl==0 in reass */
 611
 612 static const value_string icmpv6_timeex_code_val[] = {
 613     { ICMP6_TIME_EXCEED_TRANSIT,    "hop limit exceeded in transit" },
 614     { ICMP6_TIME_EXCEED_REASSEMBLY, "fragment reassembly time exceeded" },
 615     { 0, NULL }
 616 };
 617
 618 #define ICMP6_PARAMPROB_HEADER                  0       /* erroneous header field */
 619 #define ICMP6_PARAMPROB_NEXTHEADER              1       /* unrecognized next header */
 620 #define ICMP6_PARAMPROB_OPTION                  2       /* unrecognized option */
 621
 622 static const value_string icmpv6_paramprob_code_val[] = {
 623     { ICMP6_PARAMPROB_HEADER,     "erroneous header field encountered" },
 624     { ICMP6_PARAMPROB_NEXTHEADER, "unrecognized Next Header type encountered" },
 625     { ICMP6_PARAMPROB_OPTION,     "unrecognized IPv6 option encountered" },
 626     { 0, NULL }
 627 };
 628
 629
 630 /* RFC2894 - Router Renumbering for IPv6 */
 631
 632 #define ICMP6_ROUTER_RENUMBERING_COMMAND          0     /* rr command */
 633 #define ICMP6_ROUTER_RENUMBERING_RESULT           1     /* rr result */
 634 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET   255     /* rr seq num reset */
 635
 636 static const value_string icmpv6_rr_code_val[] = {
 637     { ICMP6_ROUTER_RENUMBERING_COMMAND,      "Command" },
 638     { ICMP6_ROUTER_RENUMBERING_RESULT,       "Result" },
 639     { ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET, "Sequence number reset" },
 640     { 0, NULL }
 641 };
 642
 643 #define RR_FLAG_T       0x80
 644 #define RR_FLAG_R       0x40
 645 #define RR_FLAG_A       0x20
 646 #define RR_FLAG_S       0x10
 647 #define RR_FLAG_P       0x08
 648 #define RR_FLAG_RSV     0x07
 649
 650 static const value_string rr_pco_mp_opcode_val[] = {
 651     { 1,    "Add" },
 652     { 2,    "Change" },
 653     { 3,    "Set Global" },
 654     { 0,    NULL }
 655 };
 656
 657
 658 /* RFC3810 - Multicast Listener Discovery Version 2 (MLDv2) for IPv6 */
 659
 660 #define MLDV2_PACKET_MINLEN 28
 661
 662 #define MLD_FLAG_S      0x08
 663 #define MLD_FLAG_QRV    0x07
 664 #define MLD_FLAG_RSV    0xF0
 665
 666 static const value_string mldr_record_type_val[] = {
 667     { 1, "Include" },
 668     { 2, "Exclude" },
 669     { 3, "Changed to include" },
 670     { 4, "Changed to exclude" },
 671     { 5, "Allow new sources" },
 672     { 6, "Block old sources" },
 673     { 0, NULL }
 674 };
 675
 676 /* RFC 4068/5268/5568: Fast Handovers for Mobile IPv6 ( Mobile IPv6 Fast Handovers ) */
 677
 678 #define FMIP6_SUBTYPE_RTSOLPR   2
 679 #define FMIP6_SUBTYPE_PRRTADV   3
 680 #define FMIP6_SUBTYPE_HI        4
 681 #define FMIP6_SUBTYPE_HACK      5
 682
 683 static const value_string fmip6_subtype_val[] = {
 684     { FMIP6_SUBTYPE_RTSOLPR,    "Router Solicitation for Proxy Advertisement" },
 685     { FMIP6_SUBTYPE_PRRTADV,    "Proxy Router Advertisement" },
 686     { FMIP6_SUBTYPE_HI,         "Handover Initiate" },
 687     { FMIP6_SUBTYPE_HACK,       "Handover Acknowledge" },
 688     { 0,                        NULL }
 689 };
 690
 691 static const value_string fmip6_prrtadv_code_val[] = {
 692     { 0,   "MN should use AP-ID, AR-info tuple" },
 693     { 1,   "Network Initiated Handover trigger" },
 694     { 2,   "No new router information" },
 695     { 3,   "Limited new router information" },
 696     { 4,   "Unsolicited" },
 697     { 0,    NULL }
 698 };
 699
 700 static const value_string fmip6_hi_code_val[] = {
 701     { 0,    "FBU sent from previous link" },
 702     { 1,    "FBU sent from new link" },
 703     { 0,    NULL }
 704 };
 705
 706 static const value_string fmip6_hack_code_val[] = {
 707     { 0,    "Handover Accepted, NCoA valid" },
 708     { 1,    "Handover Accepted, NCoA not valid" },
 709     { 2,    "Handover Accepted, NCoA in use" },
 710     { 3,    "Handover Accepted, NCoA assigned" },
 711     { 4,    "Handover Accepted, NCoA not assigned" },
 712     { 128,  "Handover Not Accepted, reason unspecified" },
 713     { 129,  "Administratively prohibited" },
 714     { 130,  "Insufficient resources" },
 715     { 0,    NULL }
 716 };
 717
 718 #define FMIP6_HI_FLAG_S     0x80
 719 #define FMIP6_HI_FLAG_U     0x40
 720 #define FMIP6_HI_FLAG_RSV   0x3F
 721
 722 /* RFC 4620 - IPv6 Node Information Queries */
 723
 724 #define ICMP6_NI_SUBJ_IPV6      0   /* Query Subject is an IPv6 address */
 725 #define ICMP6_NI_SUBJ_FQDN      1   /* Query Subject is a Domain name */
 726 #define ICMP6_NI_SUBJ_IPV4      2   /* Query Subject is an IPv4 address */
 727
 728 #define ICMP6_NI_SUCCESS        0   /* node information successful reply */
 729 #define ICMP6_NI_REFUSED        1   /* node information request is refused */
 730 #define ICMP6_NI_UNKNOWN        2   /* unknown Qtype */
 731
 732 #define NI_QTYPE_NOOP           0   /* NOOP  */
 733 #define NI_QTYPE_SUPTYPES       1   /* Supported Qtypes (Obso) */
 734 #define NI_QTYPE_NODENAME       2   /* Node Name */
 735 #define NI_QTYPE_NODEADDR       3   /* Node Addresses */
 736 #define NI_QTYPE_IPV4ADDR       4   /* IPv4 Addresses */
 737
 738 static const value_string ni_query_code_val[] = {
 739     { ICMP6_NI_SUBJ_IPV6,   "Query subject = IPv6 addresses" },
 740     { ICMP6_NI_SUBJ_FQDN,   "Query subject = DNS name or empty" },
 741     { ICMP6_NI_SUBJ_IPV4,   "Query subject = IPv4 addresses" },
 742     { 0, NULL }
 743 };
 744
 745 static const value_string ni_reply_code_val[] = {
 746     { ICMP6_NI_SUCCESS,   "Successful" },
 747     { ICMP6_NI_REFUSED,   "Refused" },
 748     { ICMP6_NI_UNKNOWN,   "Unknown query type" },
 749     { 0, NULL }
 750 };
 751 static const value_string ni_qtype_val[] = {
 752     { NI_QTYPE_NOOP,            "NOOP" },
 753     { NI_QTYPE_SUPTYPES,        "Supported query types (Obsolete)" },
 754     { NI_QTYPE_NODENAME,        "Node Name" },
 755     { NI_QTYPE_NODEADDR,        "Node addresses" },
 756     { NI_QTYPE_IPV4ADDR,        "IPv4 node addresses" },
 757     { 0,                        NULL }
 758 };
 759
 760 #define NI_FLAG_G       0x0020
 761 #define NI_FLAG_S       0x0010
 762 #define NI_FLAG_L       0x0008
 763 #define NI_FLAG_C       0x0004
 764 #define NI_FLAG_A       0x0002
 765 #define NI_FLAG_T       0x0001
 766 #define NI_FLAG_RSV     0xFFC0
 767
 768 static const true_false_string tfs_ni_flag_a = {
 769     "All unicast address",
 770     "Unicast addresses on the queried interface"
 771 };
 772
 773 #define ND_OPT_SOURCE_LINKADDR           1
 774 #define ND_OPT_TARGET_LINKADDR           2
 775 #define ND_OPT_PREFIX_INFORMATION        3
 776 #define ND_OPT_REDIRECTED_HEADER         4
 777 #define ND_OPT_MTU                       5
 778 #define ND_OPT_NBMA                      6
 779 #define ND_OPT_ADVINTERVAL               7
 780 #define ND_OPT_HOMEAGENT_INFO            8
 781 #define ND_OPT_SOURCE_ADDRLIST           9
 782 #define ND_OPT_TARGET_ADDRLIST          10
 783 #define ND_OPT_CGA                      11
 784 #define ND_OPT_RSA                      12
 785 #define ND_OPT_TIMESTAMP                13
 786 #define ND_OPT_NONCE                    14
 787 #define ND_OPT_TRUST_ANCHOR             15
 788 #define ND_OPT_CERTIFICATE              16
 789 #define ND_OPT_IP_ADDRESS_PREFIX        17
 790 #define ND_OPT_NEW_ROUTER_PREFIX_INFO   18
 791 #define ND_OPT_LINK_LAYER_ADDRESS       19
 792 #define ND_OPT_NEIGHBOR_ADV_ACK         20
 793 #define ND_OPT_MAP                      23
 794 #define ND_OPT_ROUTE_INFO               24
 795 #define ND_OPT_RECURSIVE_DNS_SERVER     25
 796 #define ND_OPT_FLAGS_EXTENSION          26
 797 #define ND_OPT_HANDOVER_KEY_REQUEST     27
 798 #define ND_OPT_HANDOVER_KEY_REPLY       28
 799 #define ND_OPT_HANDOVER_ASSIST_INFO     29
 800 #define ND_OPT_MOBILE_NODE_ID           30
 801 #define ND_OPT_DNS_SEARCH_LIST          31
 802 #define ND_OPT_PROXY_SIGNATURE          32
 803 /* draft-6lowpan-nd types, pending IANA assignment */
 804 #define ND_OPT_ADDR_REGISTRATION        131 /* Conflit with RFC6106.. */
 805 #define ND_OPT_6LOWPAN_CONTEXT          132 /* Conflit with draft-ietf-csi-proxy-send-05.txt.. */
 806 #define ND_OPT_AUTH_BORDER_ROUTER       33
 807
 808 static const value_string option_vals[] = {
 809 /*  1 */   { ND_OPT_SOURCE_LINKADDR,           "Source link-layer address" },
 810 /*  2 */   { ND_OPT_TARGET_LINKADDR,           "Target link-layer address" },
 811 /*  3 */   { ND_OPT_PREFIX_INFORMATION,        "Prefix information" },
 812 /*  4 */   { ND_OPT_REDIRECTED_HEADER,         "Redirected header" },
 813 /*  5 */   { ND_OPT_MTU,                       "MTU" },
 814 /*  6 */   { ND_OPT_NBMA,                      "NBMA Shortcut Limit Option" },             /* [RFC2491] */
 815 /*  7 */   { ND_OPT_ADVINTERVAL,               "Advertisement Interval" },                 /* [RFC3775] */
 816 /*  8 */   { ND_OPT_HOMEAGENT_INFO,            "Home Agent Information" },                 /* [RFC3775] */
 817 /*  9 */   { ND_OPT_SOURCE_ADDRLIST,           "Source Address List" },                    /* [RFC3122] */
 818 /* 10 */   { ND_OPT_TARGET_ADDRLIST,           "Target Address List" },                    /* [RFC3122] */
 819 /* 11 */   { ND_OPT_CGA,                       "CGA" },                                    /* [RFC3971] */
 820 /* 12 */   { ND_OPT_RSA,                       "RSA Signature" },                          /* [RFC3971] */
 821 /* 13 */   { ND_OPT_TIMESTAMP,                 "Timestamp" },                              /* [RFC3971] */
 822 /* 14 */   { ND_OPT_NONCE,                     "Nonce" },                                  /* [RFC3971] */
 823 /* 15 */   { ND_OPT_TRUST_ANCHOR,              "Trust Anchor" },                           /* [RFC3971] */
 824 /* 16 */   { ND_OPT_CERTIFICATE,               "Certificate" },                            /* [RFC3971] */
 825 /* 17 */   { ND_OPT_IP_ADDRESS_PREFIX,         "IP Address/Prefix Option" },               /* [RFC5568] */
 826 /* 18 */   { ND_OPT_NEW_ROUTER_PREFIX_INFO,    "New Router Prefix Information" },          /* [RFC4068] OBSO */
 827 /* 19 */   { ND_OPT_LINK_LAYER_ADDRESS,        "Link-layer Address" },                     /* [RFC5568] */
 828 /* 20 */   { ND_OPT_NEIGHBOR_ADV_ACK,          "Neighbor Advertisement Acknowledgment" },  /* [RFC5568] */
 829 /* 21-22   Unassigned */
 830 /* 23 */   { ND_OPT_MAP,                       "MAP" },                                    /* [RFC4140] */
 831 /* 24 */   { ND_OPT_ROUTE_INFO,                "Route Information" },                      /* [RFC4191] */
 832 /* 25 */   { ND_OPT_RECURSIVE_DNS_SERVER,      "Recursive DNS Server" },                   /* [RFC6106] */
 833 /* 26 */   { ND_OPT_FLAGS_EXTENSION,           "RA Flags Extension" },                     /* [RFC5175] */
 834 /* 27 */   { ND_OPT_HANDOVER_KEY_REQUEST,      "Handover Key Request" },                   /* [RFC5269] */
 835 /* 28 */   { ND_OPT_HANDOVER_KEY_REPLY,        "Handover Key Reply" },                     /* [RFC5269] */
 836 /* 29 */   { ND_OPT_HANDOVER_ASSIST_INFO,      "Handover Assist Information" },            /* [RFC5271] */
 837 /* 30 */   { ND_OPT_MOBILE_NODE_ID,            "Mobile Node Identifier Option" },          /* [RFC5271] */
 838 /* 31 */   { ND_OPT_DNS_SEARCH_LIST,           "DNS Search List Option" },                 /* [RFC6106] */
 839 /* 32 */   { ND_OPT_PROXY_SIGNATURE,           "Proxy Signature (PS)" },                   /* [draft-ietf-csi-proxy-send-05.txt] */
 840 /* 31 */   { ND_OPT_ADDR_REGISTRATION,         "Address Registration Option" },            /* [draft-ietf-6lowpan-nd-17.txt] */
 841 /* 32 */   { ND_OPT_6LOWPAN_CONTEXT,           "6LoWPAN Context Option" },                 /* [draft-ietf-6lowpan-nd-17.txt] */
 842 /* 33 */   { ND_OPT_AUTH_BORDER_ROUTER,        "Authorative Border Router" },              /* [draft-ietf-6lowpan-nd-17.txt] */
 843 /* 34-137  Unassigned */
 844    { 138,                              "CARD Request" },                           /* [RFC4065] */
 845    { 139,                              "CARD Reply" },                             /* [RFC4065] */
 846 /* 140-252 Unassigned */
 847    { 253,                              "RFC3692-style Experiment 1" },             /* [RFC4727] */
 848    { 254,                              "RFC3692-style Experiment 2" },             /* [RFC4727] */
 849    { 0,                                NULL }
 850 };
 851
 852 #define ND_RA_FLAG_M    0x80
 853 #define ND_RA_FLAG_O    0x40
 854 #define ND_RA_FLAG_H    0x20
 855 #define ND_RA_FLAG_PRF  0x18
 856 #define ND_RA_FLAG_P    0x04
 857 #define ND_RA_FLAG_RSV  0x02
 858
 859 #define ND_NA_FLAG_R    0x80000000
 860 #define ND_NA_FLAG_S    0x40000000
 861 #define ND_NA_FLAG_O    0x20000000
 862 #define ND_NA_FLAG_RSV  0x1FFFFFFF
 863
 864 static const value_string nd_flag_router_pref[] = {
 865     { 1, "High" },
 866     { 0, "Medium" },
 867     { 3, "Low" },
 868     { 2, "Reserved" },
 869     { 0, NULL}
 870 };
 871
 872 static const value_string nd_opt_ipa_option_code_val[] = {
 873     { 1, "Old Care-of Address" },
 874     { 2, "New Care-of Address" },
 875     { 3, "NAR's IP address" },
 876     { 4, "NAR's Prefix (sent in PrRtAdv)" },
 877     { 0, NULL }
 878 };
 879
 880 static const value_string nd_opt_lla_option_code_val[] = {
 881     { 0, "Wildcard" },
 882     { 1, "Link-layer Address of the New Access Point" },
 883     { 2, "Link-layer Address of the MN" },
 884     { 3, "Link-layer Address of the NAR" },
 885     { 4, "Link-layer Address of the source" },
 886     { 5, "The AP belongs to the current interface of the router" },
 887     { 6, "No prefix information available" },
 888     { 7, "No fast handovers support available" },
 889     { 0, NULL }
 890 };
 891
 892 static const value_string nd_opt_hai_option_code_val[] = {
 893     { 1, "Access Network Identifier (AN ID)" },
 894     { 2, "Sector ID" },
 895     { 0, NULL }
 896 };
 897
 898 static const value_string nd_opt_mn_option_code_val[] = {
 899     { 1, "NAI" },
 900     { 2, "IMSI" },
 901     { 0, NULL }
 902 };
 903 static const value_string nd_opt_naack_status_val[] = {
 904     { 1,    "New CoA is invalid, perform address configuration" },
 905     { 2,    "New CoA is invalid, use the supplied CoA" },
 906     { 3,    "NCoA is invalid, use NAR's IP address as NCoA in FBU" },
 907     { 4,    "PCoA supplied, do not send FBU" },
 908     { 128,  "LLA is unrecognized" },
 909     { 0,    NULL }
 910 };
 911
 912 #define ND_OPT_6CO_FLAG_C        0x10
 913 #define ND_OPT_6CO_FLAG_CID      0x0F
 914 #define ND_OPT_6CO_FLAG_RESERVED 0xE0
 915
 916 static const value_string nd_opt_6lowpannd_status_val[] = {
 917     { 0, "Success" },
 918     { 1, "Duplicate Exists" },
 919     { 2, "Neighbor Cache Full" },
 920     { 0, NULL }
 921 };
 922
 923 static const value_string icmpv6_option_name_type_vals[] = {
 924     { 1,    "DER Encoded X.501 Name" },
 925     { 2,    "FQDN" },
 926     { 3,    "SHA-1 Subject Key Identifier (SKI)" },
 927     { 4,    "SHA-224 Subject Key Identifier (SKI)" },
 928     { 5,    "SHA-256 Subject Key Identifier (SKI)" },
 929     { 6,    "SHA-384 Subject Key Identifier (SKI)" },
 930     { 7,    "SHA-512 Subject Key Identifier (SKI)" },
 931     { 253,  "Reserved for Experimental Use" },
 932     { 254,  "Reserved for Experimental Use" },
 933     { 255,  "Reserved" },
 934     { 0,    NULL }
 935 };
 936
 937 static const value_string icmpv6_option_cert_type_vals[] = {
 938     { 1,    "X.509v3 Certificate" },
 939     { 0,    NULL }
 940 };
 941
 942 /* RFC 4191: Default Router Preferences and More-Specific Routes  */
 943
 944 #define ND_RA_FLAG_RTPREF_MASK  0x18 /* 00011000 */
 945 #define ND_RA_FLAG_RESERV_MASK  0xE7 /* 11100111 */
 946
 947 /* RFC 5075/5175 : IPv6 Router Advertisement Flags Option */
 948 #define FLAGS_EO_M      0x8000
 949 #define FLAGS_EO_O      0x4000
 950 #define FLAGS_EO_H      0x2000
 951 #define FLAGS_EO_PRF    0x1800
 952 #define FLAGS_EO_P      0x0400
 953 #define FLAGS_EO_RSV    0x02FF
 954
 955
 956
 957 /* RPL: draft-ietf-roll-rpl-19.txt: Routing over Low-Power and Lossy Networks. */
 958 /* Pending IANA Assignment */
 959 /* RPL ICMPv6 Codes */
 960 #define ICMP6_RPL_DIS       0x00   /* DODAG Information Solicitation */
 961 #define ICMP6_RPL_DIO       0x01   /* DODAG Information Object */
 962 #define ICMP6_RPL_DAO       0x02   /* Destination Advertisement Object */
 963 #define ICMP6_RPL_DAOACK    0x03   /* Destination Advertisement Object Ack */
 964 #define ICMP6_RPL_SDIS      0x80   /* Secure DODAG Information Solicitation */
 965 #define ICMP6_RPL_SDIO      0x81   /* Secure DODAG Information Object */
 966 #define ICMP6_RPL_SDAO      0x82   /* Secure Destination Advertisement Object */
 967 #define ICMP6_RPL_SDAOACK   0x83   /* Secure Destination Advertisement Object Ack */
 968 #define ICMP6_RPL_CC        0x8A   /* Consistency Check */
 969
 970
 971 /* RPL DIO Flags */
 972 #define RPL_DIO_FLAG_G           0x80
 973 #define RPL_DIO_FLAG_0           0x40
 974 #define RPL_DIO_FLAG_MOP         0x38
 975 #define RPL_DIO_FLAG_PRF         0x07
 976
 977 /* RPL DAO Flags */
 978 #define RPL_DAO_FLAG_K                  0x80
 979 #define RPL_DAO_FLAG_D                  0x40
 980 #define RPL_DAO_FLAG_RESERVED           0x3F
 981
 982 /* RPL DAO ACK Flags */
 983 #define RPL_DAOACK_FLAG_D               0x80
 984 #define RPL_DAOACK_FLAG_RESERVED        0x7F
 985
 986 /* RPL CC Flags */
 987 #define RPL_CC_FLAG_R               0x80
 988 #define RPL_CC_FLAG_RESERVED        0x7F
 989
 990 /* RPL Secure */
 991 #define ICMP6_RPL_SECURE    0x80
 992
 993 #define RPL_SECURE_FLAG_T   0x80
 994 #define RPL_SECURE_FLAG_RSV 0x7F
 995
 996 #define RPL_SECURE_LVL      0x07
 997 #define RPL_SECURE_KIM      0xC0
 998 #define RPL_SECURE_RSV      0x38
 999
1000 /* RPL Option Bitfields */
1001 #define RPL_OPT_PREFIX_FLAG_L           0x80
1002 #define RPL_OPT_PREFIX_FLAG_A           0x40
1003 #define RPL_OPT_PREFIX_FLAG_R           0x20
1004 #define RPL_OPT_PREFIX_FLAG_RSV         0x1F
1005 #define RPL_OPT_ROUTE_PREFERENCE        0x18
1006 #define RPL_OPT_ROUTE_RESERVED          0xE7
1007 #define RPL_OPT_CONFIG_FLAG_AUTH        0x08
1008 #define RPL_OPT_CONFIG_FLAG_PCS         0x07
1009 #define RPL_OPT_CONFIG_FLAG_RESERVED    0xF0
1010 #define RPL_OPT_TRANSIT_FLAG_E          0x80
1011 #define RPL_OPT_TRANSIT_FLAG_RSV        0x7F
1012 #define RPL_OPT_SOLICITED_FLAG_V        0x80
1013 #define RPL_OPT_SOLICITED_FLAG_I        0x40
1014 #define RPL_OPT_SOLICITED_FLAG_D        0x20
1015 #define RPL_OPT_SOLICITED_FLAG_RSV      0x1F
1016
1017 static const value_string rpl_dio_map_val[] = {
1018     { 0, "No downward routes maintained by RPL" },
1019     { 1, "Non storing mode" },
1020     { 2, "Storing without multicast support" },
1021     { 3, "Storing with multicast support" },
1022     { 0, NULL }
1023 };
1024 static const value_string rpl_code_val[] = {
1025     { ICMP6_RPL_DIS,    "DODAG Information Solicitation" },
1026     { ICMP6_RPL_DIO,    "DODAG Information Object" },
1027     { ICMP6_RPL_DAO,    "Destination Advertisement Object" },
1028     { ICMP6_RPL_DAOACK, "Destination Advertisement Object Acknowledgement" },
1029     { ICMP6_RPL_SDIS,   "Secure DODAG Information Solicitation" },
1030     { ICMP6_RPL_SDIO,   "Secure DODAG Information Object" },
1031     { ICMP6_RPL_SDAO,   "Secure Destination Advertisement Object" },
1032     { ICMP6_RPL_SDAOACK,"Secure Destination Advertisement Object Acknowledgement" },
1033     { ICMP6_RPL_CC,     "Consistency Check" },
1034     { 0, NULL }
1035 };
1036
1037 static const value_string rpl_secure_algorithm_encryption_val[] = {
1038     { 0, "CCM with AES-128" },
1039     { 0, NULL }
1040 };
1041
1042 static const value_string rpl_secure_algorithm_signature_val[] = {
1043     { 0, "RSA with SHA-256" },
1044     { 0, NULL }
1045 };
1046 /* RPL Option Types */
1047 /* Pending IANA Assignment */
1048 #define RPL_OPT_PAD1        0   /* 1-byte padding */
1049 #define RPL_OPT_PADN        1   /* n-byte padding */
1050 #define RPL_OPT_METRIC      2   /* DAG metric container */
1051 #define RPL_OPT_ROUTING     3   /* Routing Information */
1052 #define RPL_OPT_CONFIG      4   /* DAG configuration */
1053 #define RPL_OPT_TARGET      5   /* RPL Target */
1054 #define RPL_OPT_TRANSIT     6   /* Transit */
1055 #define RPL_OPT_SOLICITED   7   /* Solicited Information */
1056 #define RPL_OPT_PREFIX      8   /* Destination prefix */
1057 #define RPL_OPT_TARGETDESC  9   /* RPL Target Descriptor */
1058
1059 static const value_string rpl_option_vals[] = {
1060     { RPL_OPT_PAD1,       "1-byte padding" },
1061     { RPL_OPT_PADN,       "n-byte padding" },
1062     { RPL_OPT_METRIC,     "Metric container" },
1063     { RPL_OPT_ROUTING,    "Routing"},
1064     { RPL_OPT_CONFIG,     "DODAG configuration" },
1065     { RPL_OPT_TARGET,     "RPL Target" },
1066     { RPL_OPT_TRANSIT,    "Transit Information" },
1067     { RPL_OPT_SOLICITED,  "Solicited Information"},
1068     { RPL_OPT_PREFIX,     "Prefix Information"},
1069     { RPL_OPT_TARGETDESC, "RPL Target Descriptor"},
1070     { 0, NULL }
1071 };
1072
1073
1074
1075 static int
1076 dissect_contained_icmpv6(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
1077 {
1078     gboolean save_in_error_pkt;
1079     tvbuff_t *next_tvb;
1080
1081     /* Save the current value of the "we're inside an error packet"
1082        flag, and set that flag; subdissectors may treat packets
1083        that are the payload of error packets differently from
1084        "real" packets. */
1085     save_in_error_pkt = pinfo->in_error_pkt;
1086     pinfo->in_error_pkt = TRUE;
1087
1088     next_tvb = tvb_new_subset_remaining(tvb, offset);
1089
1090     /* tiny sanity check */
1091     if ((tvb_get_guint8(tvb, offset) & 0xf0) == 0x60) {
1092         /* The contained packet is an IPv6 datagram; dissect it. */
1093         offset += call_dissector(ipv6_handle, next_tvb, pinfo, tree);
1094     } else
1095         offset += call_dissector(data_handle, next_tvb, pinfo, tree);
1096
1097     /* Restore the "we're inside an error packet" flag. */
1098     pinfo->in_error_pkt = save_in_error_pkt;
1099
1100     return offset;
1101 }
1102
1103
1104 /* ======================================================================= */
1105 static conversation_t *_find_or_create_conversation(packet_info *pinfo)
1106 {
1107     conversation_t *conv = NULL;
1108
1109     /* Have we seen this conversation before? */
1110     conv = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst,
1111         pinfo->ptype, 0, 0, 0);
1112     if ( conv == NULL )
1113     {
1114         /* No, this is a new conversation. */
1115         conv = conversation_new(pinfo->fd->num, &pinfo->src, &pinfo->dst,
1116             pinfo->ptype, 0, 0, 0);
1117     }
1118     return (conv);
1119 }
1120
1121 /* ======================================================================= */
1122 static icmp_transaction_t *transaction_start(packet_info *pinfo, proto_tree *tree, guint32 *key)
1123 {
1124     conversation_t *conversation;
1125     icmpv6_conv_info_t *icmpv6_info;
1126     icmp_transaction_t *icmpv6_trans;
1127     emem_tree_key_t icmpv6_key[2];
1128     proto_item *it;
1129
1130     /* Handle the conversation tracking */
1131     conversation = _find_or_create_conversation(pinfo);
1132     icmpv6_info = conversation_get_proto_data(conversation, proto_icmpv6);
1133     if ( icmpv6_info == NULL )
1134     {
1135         icmpv6_info = se_alloc(sizeof(icmpv6_conv_info_t));
1136         icmpv6_info->pdus = se_tree_create_non_persistent(
1137             EMEM_TREE_TYPE_RED_BLACK, "icmpv6_pdus");
1138         conversation_add_proto_data(conversation, proto_icmpv6, icmpv6_info);
1139     }
1140
1141     icmpv6_key[0].length = 2;
1142     icmpv6_key[0].key = key;
1143     icmpv6_key[1].length = 0;
1144     icmpv6_key[1].key = NULL;
1145     if ( !PINFO_FD_VISITED(pinfo) )
1146     {
1147         icmpv6_trans = se_alloc(sizeof(icmp_transaction_t));
1148         icmpv6_trans->rqst_frame = PINFO_FD_NUM(pinfo);
1149         icmpv6_trans->resp_frame = 0;
1150         icmpv6_trans->rqst_time = pinfo->fd->abs_ts;
1151         icmpv6_trans->resp_time = 0.0;
1152         se_tree_insert32_array(icmpv6_info->pdus, icmpv6_key, (void *)icmpv6_trans);
1153     }
1154     else /* Already visited this frame */
1155         icmpv6_trans = se_tree_lookup32_array(icmpv6_info->pdus, icmpv6_key);
1156
1157     if ( icmpv6_trans == NULL )
1158         return (NULL);
1159
1160     /* Print state tracking in the tree */
1161     if ( tree && icmpv6_trans->resp_frame &&
1162         (icmpv6_trans->rqst_frame == PINFO_FD_NUM(pinfo)) )
1163     {
1164         it = proto_tree_add_uint(tree, hf_icmpv6_resp_in, NULL, 0, 0,
1165             icmpv6_trans->resp_frame);
1166         PROTO_ITEM_SET_GENERATED(it);
1167     }
1168
1169     return (icmpv6_trans);
1170
1171 } /* transaction_start() */
1172
1173 /* ======================================================================= */
1174 static icmp_transaction_t *transaction_end(packet_info *pinfo, proto_tree *tree, guint32 *key)
1175 {
1176     conversation_t *conversation;
1177     icmpv6_conv_info_t *icmpv6_info;
1178     icmp_transaction_t *icmpv6_trans;
1179     emem_tree_key_t icmpv6_key[2];
1180     proto_item *it;
1181     nstime_t ns;
1182
1183     conversation = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst,
1184         pinfo->ptype, 0, 0, 0);
1185     if ( conversation == NULL )
1186         return (NULL);
1187
1188     icmpv6_info = conversation_get_proto_data(conversation, proto_icmpv6);
1189     if ( icmpv6_info == NULL )
1190         return (NULL);
1191
1192     icmpv6_key[0].length = 2;
1193     icmpv6_key[0].key = key;
1194     icmpv6_key[1].length = 0;
1195     icmpv6_key[1].key = NULL;
1196     icmpv6_trans = se_tree_lookup32_array(icmpv6_info->pdus, icmpv6_key);
1197     if ( icmpv6_trans == NULL )
1198         return (NULL);
1199
1200     /* Print state tracking in the tree */
1201     if ( icmpv6_trans->rqst_frame &&
1202         (icmpv6_trans->rqst_frame < PINFO_FD_NUM(pinfo)) &&
1203         ((icmpv6_trans->resp_frame == 0) ||
1204         (icmpv6_trans->resp_frame == PINFO_FD_NUM(pinfo))) )
1205     {
1206         icmpv6_trans->resp_frame = PINFO_FD_NUM(pinfo);
1207         if ( tree )
1208         {
1209             it = proto_tree_add_uint(tree, hf_icmpv6_resp_to, NULL, 0, 0,
1210                 icmpv6_trans->rqst_frame);
1211             PROTO_ITEM_SET_GENERATED(it);
1212         }
1213
1214         nstime_delta(&ns, &pinfo->fd->abs_ts, &icmpv6_trans->rqst_time);
1215         icmpv6_trans->resp_time = nstime_to_msec(&ns);
1216         if ( tree )
1217         {
1218             it = proto_tree_add_double_format_value(tree, hf_icmpv6_resptime, NULL,
1219                 0, 0, icmpv6_trans->resp_time, "%.3f ms", icmpv6_trans->resp_time);
1220             PROTO_ITEM_SET_GENERATED(it);
1221         }
1222     }
1223
1224     return (icmpv6_trans);
1225
1226 } /* transaction_end() */
1227
1228 static int
1229 dissect_icmpv6_nd_opt(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
1230 {
1231     proto_tree *icmp6opt_tree, *flag_tree;
1232     proto_item *ti, *ti_opt, *ti_opt_len;
1233     guint8 opt_type;
1234     int opt_len;
1235     int opt_offset;
1236
1237     while ((int)tvb_reported_length(tvb) > offset) {
1238         /* there are more options */
1239
1240         /* ICMPv6 Option */
1241         opt_len = tvb_get_guint8(tvb, offset + 1) * 8;
1242         ti = proto_tree_add_item(tree, hf_icmpv6_opt, tvb, offset, opt_len, ENC_NA);
1243         icmp6opt_tree = proto_item_add_subtree(ti, ett_icmpv6_opt);
1244         opt_offset = offset;
1245
1246         /* Option type */
1247         proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_type, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1248         opt_type = tvb_get_guint8(tvb, opt_offset);
1249         opt_offset += 1;
1250
1251         /* Add option name to option root label */
1252         proto_item_append_text(ti, " (%s", val_to_str(opt_type, option_vals, "Unknown %d"));
1253
1254         /* Option length */
1255         ti_opt_len = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_length, tvb,opt_offset, 1, ENC_BIG_ENDIAN);
1256         opt_offset += 1;
1257
1258         /* Add length value in bytes */
1259         proto_item_append_text(ti_opt_len, " (%i bytes)", opt_len);
1260
1261         if(opt_len == 0){
1262             expert_add_info_format(pinfo, ti_opt_len, PI_MALFORMED, PI_ERROR, "Invalid option length (Zero)");
1263             return opt_offset;
1264         }
1265
1266         /* decode... */
1267         switch (opt_type) {
1268             case ND_OPT_SOURCE_LINKADDR: /* Source Link-layer Address (1) */
1269             {
1270                 const gchar *link_str;
1271                 /* if the opt len is 8, the Link Addr is MAC Address */
1272                 if(opt_len == 8){
1273                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr_mac, tvb, opt_offset, 6, ENC_BIG_ENDIAN);
1274                     ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_src_linkaddr_mac, tvb, opt_offset, 6, ENC_BIG_ENDIAN);
1275                     PROTO_ITEM_SET_HIDDEN(ti_opt);
1276
1277                     link_str = tvb_ether_to_str(tvb, opt_offset);
1278                     col_append_fstr(pinfo->cinfo, COL_INFO, " from %s", link_str);
1279                     proto_item_append_text(ti, " : %s", link_str);
1280                 /* if the opt len is 16 and the 6 last bytes is 0n the Link Addr is EUI64 Address */
1281                 }else if(opt_len == 16 && tvb_get_ntohl(tvb, opt_offset + 8) == 0 && tvb_get_ntohs(tvb, opt_offset + 12) == 0){
1282                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr_eui64, tvb, opt_offset, 8, ENC_BIG_ENDIAN);
1283                     ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_src_linkaddr_eui64, tvb, opt_offset, 8, ENC_BIG_ENDIAN);
1284                     PROTO_ITEM_SET_HIDDEN(ti_opt);
1285
1286                     /* Padding: 6 bytes */
1287                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset + 8, 6, ENC_NA);
1288
1289                     link_str = tvb_eui64_to_str(tvb, opt_offset, ENC_BIG_ENDIAN);
1290                     col_append_fstr(pinfo->cinfo, COL_INFO, " from %s", link_str);
1291                     proto_item_append_text(ti, " : %s", link_str);
1292                 }else{
1293                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr, tvb, opt_offset, opt_len-2, ENC_NA);
1294                     ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_src_linkaddr, tvb, opt_offset, opt_len-2, ENC_NA);
1295                     PROTO_ITEM_SET_HIDDEN(ti_opt);
1296                 }
1297                 opt_offset += opt_len;
1298
1299                 break;
1300             }
1301             case ND_OPT_TARGET_LINKADDR: /* Target Link-layer Address (2) */
1302             {
1303                 const gchar *link_str;
1304                 /* if the opt len is 8, the Link Addr is MAC Address */
1305                 if(opt_len == 8){
1306                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr_mac, tvb, opt_offset, 6, ENC_BIG_ENDIAN);
1307                     ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_target_linkaddr_mac, tvb, opt_offset, 6, ENC_BIG_ENDIAN);
1308                     PROTO_ITEM_SET_HIDDEN(ti_opt);
1309
1310                     link_str = tvb_ether_to_str(tvb, opt_offset);
1311                     col_append_fstr(pinfo->cinfo, COL_INFO, " is at %s", link_str);
1312                     proto_item_append_text(ti, " : %s", link_str);
1313
1314                 /* if the opt len is 16 and the 6 last bytes is 0n the Link Addr is EUI64 Address */
1315                 }else if(opt_len == 16 && tvb_get_ntohl(tvb, opt_offset + 8) == 0 && tvb_get_ntohs(tvb, opt_offset + 12) == 0){
1316                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr_eui64, tvb, opt_offset, 8, ENC_BIG_ENDIAN);
1317                     ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_target_linkaddr_eui64, tvb, opt_offset, 8, ENC_BIG_ENDIAN);
1318                     PROTO_ITEM_SET_HIDDEN(ti_opt);
1319
1320                     /* Padding: 6 bytes */
1321                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset + 8, 6, ENC_NA);
1322
1323                     link_str = tvb_eui64_to_str(tvb, opt_offset, ENC_BIG_ENDIAN);
1324                     col_append_fstr(pinfo->cinfo, COL_INFO, " from %s", link_str);
1325                     proto_item_append_text(ti, " : %s", link_str);
1326                 }else{
1327                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr, tvb, opt_offset, opt_len-2, ENC_NA);
1328                     ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_target_linkaddr, tvb, opt_offset, opt_len-2, ENC_NA);
1329                     PROTO_ITEM_SET_HIDDEN(ti_opt);
1330                 }
1331                 opt_offset += opt_len;
1332                 break;
1333             }
1334             case ND_OPT_PREFIX_INFORMATION: /* Prefix Information (3) */
1335             {
1336                 guint8 prefix_len;
1337                 /* RFC 4861 */
1338
1339                 /* Prefix Length */
1340                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1341                 prefix_len = tvb_get_guint8(tvb, opt_offset);
1342                 opt_offset += 1;
1343
1344                 /* Flags */
1345                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1346                 flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_flag_prefix);
1347
1348                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_prefix_flag_l, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1349                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_prefix_flag_a, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1350                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_prefix_flag_r, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1351                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_prefix_flag_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1352                 opt_offset += 1;
1353
1354                 /* Prefix Valid Lifetime */
1355                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix_valid_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
1356
1357                 switch(tvb_get_ntohl(tvb, opt_offset)){
1358                     case 0xffffffff:
1359                         proto_item_append_text(ti_opt, " (Infinity)");
1360                         break;
1361                     default:
1362                         break;
1363                 }
1364                 opt_offset += 4;
1365
1366                 /* Prefix Preferred Lifetime */
1367                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix_preferred_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
1368
1369                 switch(tvb_get_ntohl(tvb, opt_offset)){
1370                     case 0xffffffff:
1371                         proto_item_append_text(ti_opt, " (Infinity)");
1372                         break;
1373                     default:
1374                         break;
1375                 }
1376                 opt_offset += 4;
1377
1378                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
1379                 opt_offset += 4;
1380
1381                 /* Prefix */
1382                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix, tvb, opt_offset, 16, ENC_NA);
1383                 proto_item_append_text(ti, " : %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
1384                 opt_offset += 16;
1385
1386                 break;
1387             }
1388             case ND_OPT_REDIRECTED_HEADER: /* Redirected Header (4) */
1389
1390                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 6, ENC_NA);
1391                 opt_offset += 6;
1392
1393                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_redirected_packet, tvb, opt_offset, -1, ENC_NA);
1394
1395                 offset = dissect_contained_icmpv6(tvb, opt_offset, pinfo, icmp6opt_tree);
1396                 break;
1397             case ND_OPT_MTU: /* MTU (5) */
1398
1399                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
1400                 opt_offset += 2;
1401
1402                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_mtu, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
1403                 proto_item_append_text(ti, " : %d", tvb_get_ntohl(tvb, opt_offset));
1404                 opt_offset += 4;
1405                 break;
1406             case ND_OPT_NBMA: /* NBMA Shortcut Limit Option (6) */
1407
1408                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_nbma_shortcut_limit, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1409                 proto_item_append_text(ti, " : %d", tvb_get_guint8(tvb, opt_offset));
1410
1411                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 1, ENC_NA);
1412                 opt_offset += 1;
1413
1414                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
1415                 opt_offset += 4;
1416
1417                 break;
1418             case ND_OPT_ADVINTERVAL: /* Advertisement Interval Option (7) */
1419
1420                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
1421                 opt_offset += 2;
1422
1423                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_advertisement_interval, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
1424                 proto_item_append_text(ti, " : %d", tvb_get_ntohl(tvb, opt_offset));
1425                 opt_offset += 4;
1426
1427                 break;
1428             case ND_OPT_HOMEAGENT_INFO: /* Home Agent Information Option (8) */
1429             {
1430
1431                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
1432                 opt_offset += 2;
1433
1434                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_home_agent_preference, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1435                 opt_offset += 2;
1436
1437                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_home_agent_lifetime, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1438                 opt_offset += 2;
1439                 break;
1440             }
1441             case  ND_OPT_SOURCE_ADDRLIST: /* Source Address List (9) */
1442             case  ND_OPT_TARGET_ADDRLIST: /* Target Address List (10)*/
1443             {
1444                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 6, ENC_NA);
1445                 opt_offset += 6;
1446
1447                 while(opt_offset < (offset + opt_len) ) {
1448                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_ipv6_address, tvb, opt_offset, 16, ENC_NA);
1449                     proto_item_append_text(ti, " %s", tvb_ip6_to_str(tvb, opt_offset));
1450                     opt_offset += 16;
1451                 }
1452                 break;
1453             }
1454             case ND_OPT_CGA: /* CGA Option (11) */
1455             {
1456                 proto_tree *cga_tree;
1457                 proto_item *cga_item;
1458                 guint16 ext_data_len;
1459                 guint8 padd_length;
1460                 int par_len;
1461                 asn1_ctx_t asn1_ctx;
1462
1463                 /* Pad Length */
1464                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_cga_pad_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1465                 padd_length = tvb_get_guint8(tvb, opt_offset);
1466                 opt_offset += 1;
1467
1468                 /* Reserved 8 bits */
1469
1470                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 1, ENC_NA);
1471                 opt_offset += 1;
1472
1473                 /* CGA Parameters A variable-length field containing the CGA Parameters data
1474                  * structure described in Section 4 of
1475                  * "Cryptographically Generated Addresses (CGA)", RFC3972.
1476                  */
1477                 par_len = opt_len -4 -padd_length;
1478                 cga_item = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_cga, tvb, opt_offset, par_len, ENC_NA);
1479                 par_len += opt_offset;
1480
1481                 cga_tree = proto_item_add_subtree(cga_item, ett_icmpv6_cga_param_name);
1482                 proto_tree_add_item(cga_tree, hf_icmpv6_opt_cga_modifier, tvb, opt_offset, 16, ENC_NA);
1483                 opt_offset += 16;
1484
1485                 proto_tree_add_item(cga_tree, hf_icmpv6_opt_cga_subnet_prefix, tvb, opt_offset, 8, ENC_NA);
1486                 opt_offset += 8;
1487
1488                 proto_tree_add_item(cga_tree ,hf_icmpv6_opt_cga_count, tvb, opt_offset, 1, ENC_NA);
1489                 opt_offset += 1;
1490
1491                 asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
1492                 opt_offset = dissect_x509af_SubjectPublicKeyInfo(FALSE, tvb, opt_offset, &asn1_ctx, cga_tree, -1);
1493
1494                 /* Process RFC 4581*/
1495                 while (opt_offset < par_len) {
1496                     proto_tree_add_item(cga_tree, hf_icmpv6_opt_cga_ext_type, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1497                     opt_offset += 2;
1498
1499                     ext_data_len = tvb_get_ntohs(tvb, opt_offset);
1500                     proto_tree_add_item(cga_tree, hf_icmpv6_opt_cga_ext_length, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1501                     opt_offset += 2;
1502
1503                     proto_tree_add_item(cga_tree, hf_icmpv6_opt_cga_ext_data, tvb, opt_offset, ext_data_len, ENC_NA);
1504                     opt_offset += ext_data_len;
1505                 }
1506
1507                 /* Padding */
1508                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
1509                 opt_offset += padd_length;
1510                 break;
1511             }
1512             case ND_OPT_RSA: /* RSA Signature Option (12) */
1513             {
1514                 int par_len;
1515                 /*5.2.  RSA Signature Option */
1516                 /* Reserved, A 16-bit field reserved for future use. */
1517                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
1518                 opt_offset = opt_offset + 2;
1519
1520                 /* Key Hash
1521                  * A 128-bit field containing the most significant (leftmost) 128
1522                  * bits of a SHA-1 [14] hash of the public key used for constructing
1523                  * the signature.
1524                  */
1525                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_rsa_key_hash, tvb, opt_offset, 16, ENC_NA);
1526                 opt_offset = opt_offset + 16;
1527
1528                 /* Digital Signature */
1529                 par_len = opt_len - 20;
1530                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_digital_signature_padding , tvb, opt_offset, par_len, ENC_NA);
1531                 opt_offset += par_len;
1532
1533                 /* Padding */
1534                 /* TODO: Calculate padding length and exlude from the signature */
1535                 break;
1536             }
1537             case ND_OPT_TIMESTAMP: /* Timestamp Option (13) */
1538                 /* Reserved A 48-bit field reserved for future use. */
1539                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 6, ENC_NA);
1540                 opt_offset += 6;
1541
1542                 /* Timestamp
1543                  * A 64-bit unsigned integer field containing a timestamp.  The value
1544                  * indicates the number of seconds since January 1, 1970, 00:00 UTC,
1545                  * by using a fixed point format.  In this format, the integer number
1546                  * of seconds is contained in the first 48 bits of the field, and the
1547                  * remaining 16 bits indicate the number of 1/64K fractions of a
1548                  * second.
1549                  */
1550                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_timestamp, tvb, opt_offset + 2, 4, ENC_TIME_TIMESPEC|ENC_BIG_ENDIAN);
1551                 opt_offset += 8;
1552                 break;
1553             case ND_OPT_NONCE: /* Nonce option (14) */
1554
1555                 /* 5.3.2.  Nonce Option */
1556                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_nonce, tvb, opt_offset, opt_len - 2, ENC_NA);
1557                 opt_offset += opt_len -2;
1558                 break;
1559             case ND_OPT_TRUST_ANCHOR: /* Trust Anchor Option (15) */
1560             {
1561                 proto_tree *name_tree;
1562                 proto_item *name_item;
1563                 guint8 name_type;
1564                 guint8 padd_length;
1565                 int par_len;
1566                 asn1_ctx_t asn1_ctx;
1567
1568                 /* Name Type */
1569                 name_type = tvb_get_guint8(tvb, opt_offset);
1570                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_name_type, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1571                 opt_offset += 1;
1572
1573                 /* Pad Length */
1574                 padd_length = tvb_get_guint8(tvb, opt_offset);
1575                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_cga_pad_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1576                 opt_offset += 1;
1577
1578                 par_len = opt_len - 4 - padd_length;
1579
1580                 switch (name_type){
1581                     case 1:
1582                         /* DER Encoded X.501 Name */
1583                         name_item = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_name_x501, tvb, opt_offset, par_len, ENC_NA);
1584                         name_tree = proto_item_add_subtree(name_item, ett_icmpv6_opt_name);
1585                         asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
1586                         dissect_x509if_Name(FALSE, tvb, opt_offset, &asn1_ctx, name_tree, hf_icmpv6_x509if_Name);
1587                         break;
1588                     case 2:
1589                         /* FQDN */
1590                         proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_name_fqdn, tvb, opt_offset, par_len, ENC_ASCII|ENC_NA);
1591                         break;
1592                     default:
1593                         break;
1594                 }
1595                 opt_offset += par_len;
1596
1597                 /* Padding */
1598                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
1599                 opt_offset += padd_length;
1600
1601                 break;
1602             }
1603             case ND_OPT_CERTIFICATE: /* Certificate Option (16) */
1604             {
1605                 guint8 cert_type;
1606                 guint8 padd_length;
1607                 asn1_ctx_t asn1_ctx;
1608
1609                 /* Cert Type */
1610                 cert_type = tvb_get_guint8(tvb, opt_offset);
1611                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_cert_type, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1612                 opt_offset += 1;
1613
1614                 /* Reserved */
1615                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 1, ENC_NA);
1616                 opt_offset += 1;
1617
1618                 /* Certificate */
1619
1620                 if(cert_type == 1){
1621                     asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
1622                     opt_offset = dissect_x509af_Certificate(FALSE, tvb, opt_offset, &asn1_ctx, icmp6opt_tree, hf_icmpv6_x509af_Certificate);
1623                     padd_length = opt_len - (opt_offset - offset);
1624                     /* Padding */
1625                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
1626                     opt_offset += padd_length;
1627                 }else{
1628                     padd_length = opt_len - 4;
1629                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_certificate_padding, tvb, opt_offset, padd_length, ENC_NA);
1630                     opt_offset += padd_length;
1631                 }
1632                 break;
1633
1634             }
1635             case ND_OPT_IP_ADDRESS_PREFIX: /* IP Address/Prefix Option (17) */
1636             {
1637                 guint8 prefix_len;
1638
1639                 /* Option-code */
1640                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_ipa_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1641                 opt_offset += 1;
1642
1643                 /* Prefix Len */
1644                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_ipa_prefix_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1645                 prefix_len = tvb_get_guint8(tvb, opt_offset);
1646                 opt_offset += 1;
1647
1648                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
1649                 opt_offset += 4;
1650
1651                 /* IPv6 Address */
1652                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_ipa_ipv6_address, tvb, opt_offset, 16, ENC_NA);
1653                 proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
1654                 opt_offset += 16;
1655
1656                 break;
1657             }
1658             case ND_OPT_NEW_ROUTER_PREFIX_INFO: /* New Router Prefix Information Option (18) OBSO... */
1659             {
1660
1661                 guint8 prefix_len;
1662
1663                 /* Option-code */
1664                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_nrpi_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1665                 opt_offset += 1;
1666
1667                 /* Prefix Len */
1668                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_nrpi_prefix_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1669                 prefix_len = tvb_get_guint8(tvb, opt_offset);
1670                 opt_offset += 1;
1671
1672                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
1673                 opt_offset += 4;
1674
1675                 /* Prefix */
1676                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_nrpi_prefix, tvb, opt_offset, 16, ENC_NA);
1677                 proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
1678                 opt_offset += 16;
1679
1680                 break;
1681             }
1682             case ND_OPT_LINK_LAYER_ADDRESS: /* Link-layer Address Option (19) */
1683             {
1684                 /* Option-Code */
1685                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_lla_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1686                 opt_offset += 1;
1687
1688                 /* Link Layer Address */
1689                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_lla_bytes, tvb, opt_offset, opt_len-3, ENC_NA);
1690                 opt_offset += opt_len - 3;
1691                 break;
1692             }
1693
1694             case ND_OPT_NEIGHBOR_ADV_ACK: /* Neighbor Advertisement Acknowledgment Option (20) */
1695             {
1696                 guint8 status;
1697
1698                 /* Option-Code */
1699                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_naack_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1700                 opt_offset += 1;
1701
1702                 /* Status */
1703                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_naack_status, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1704                 status = tvb_get_guint8(tvb, opt_offset);
1705                 opt_offset += 1;
1706
1707                 if(status == 2){
1708                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_naack_supplied_ncoa, tvb, opt_offset, 16, ENC_NA);
1709                     opt_offset += 16;
1710                 }else{
1711                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, opt_len - 4, ENC_NA);
1712                     opt_offset += opt_len - 4;
1713                 }
1714                 break;
1715             }
1716             case ND_OPT_MAP: /* MAP Option (23) */
1717             {
1718
1719                 /* Dist */
1720                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_map_dist, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1721
1722                 /* Pref */
1723                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_map_pref, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1724                 opt_offset += 1;
1725
1726                 /* Flags */
1727                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_map_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1728                 flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_flag_map);
1729
1730                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_map_flag_r, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1731                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_map_flag_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1732                 opt_offset += 1;
1733
1734                 /* Valid Lifetime */
1735                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_map_valid_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
1736                 opt_offset += 4;
1737
1738                 /* Global Address */
1739                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_map_global_address, tvb, opt_offset, 16, ENC_NA);
1740                 opt_offset += 16;
1741                 break;
1742             }
1743             case ND_OPT_ROUTE_INFO: /* Route Information Option (24) */
1744             {
1745                 /* RFC 4191 */
1746                 guint8 prefix_len;
1747                 guint8 route_preference;
1748                 struct e_in6_addr prefix;
1749
1750                 /* Prefix Len */
1751                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1752                 prefix_len = tvb_get_guint8(tvb, opt_offset);
1753                 opt_offset += 1;
1754
1755                 /* Flags */
1756                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_route_info_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1757                 flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_flag_route_info);
1758
1759                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_route_info_flag_route_preference, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1760                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_route_info_flag_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1761
1762                 route_preference = tvb_get_guint8(tvb, opt_offset);
1763                 route_preference = (route_preference & ND_RA_FLAG_RTPREF_MASK) >> 3;
1764                 proto_item_append_text(ti, " : %s", val_to_str(route_preference, nd_flag_router_pref, "Unknown %d") );
1765                 opt_offset += 1;
1766
1767                 /* Route Lifetime */
1768                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_route_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
1769
1770                 switch(tvb_get_ntohl(tvb, opt_offset)){
1771                     case 0xffffffff:
1772                         proto_item_append_text(ti_opt, " (Infinity)");
1773                         break;
1774                     default:
1775                         break;
1776                 }
1777                 opt_offset += 4;
1778
1779                 /* Prefix */
1780                 switch(opt_len){
1781                     case 8: /* Default Option Length without prefix */
1782                         proto_item_append_text(ti, " ::/%d", prefix_len);
1783                         break;
1784                     case 16:
1785                         memset(&prefix, 0, sizeof(prefix));
1786                         tvb_memcpy(tvb, (guint8 *)&prefix.bytes, opt_offset, 8);
1787                         proto_tree_add_ipv6(icmp6opt_tree, hf_icmpv6_opt_prefix, tvb, opt_offset, 8, prefix.bytes);
1788                         proto_item_append_text(ti, " %s/%d", ip6_to_str(&prefix), prefix_len);
1789                         opt_offset += 8;
1790                         break;
1791                     case 24:
1792                         proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix, tvb, opt_offset, 16, ENC_NA);
1793                         proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
1794                         opt_offset += 16;
1795                         break;
1796                     default:
1797                         expert_add_info_format(pinfo, ti_opt_len, PI_MALFORMED, PI_ERROR, "Invalid Option Length");
1798                         break;
1799                 }
1800                 break;
1801
1802             }
1803
1804             case ND_OPT_RECURSIVE_DNS_SERVER: /* Recursive DNS Server Option (25) */
1805             {
1806                 /* Reserved */
1807                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
1808                 opt_offset += 2;
1809
1810                 /* RDNSS Lifetime */
1811                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_rdnss_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
1812                 /* A value of all one bits (0xffffffff) represents infinity.  A value of
1813                  * zero means that the RDNSS address MUST no longer be used.
1814                  */
1815                 switch(tvb_get_ntohl(tvb, opt_offset)){
1816                     case 0:
1817                         proto_item_append_text(ti_opt, " (RDNSS address MUST no longer be used)");
1818                         break;
1819                     case 0xffffffff:
1820                         proto_item_append_text(ti_opt, " (Infinity)");
1821                         break;
1822                     default:
1823                         break;
1824                 }
1825                 opt_offset += 4;
1826
1827                 while(opt_offset < (offset + opt_len) ) {
1828                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_rdnss, tvb, opt_offset, 16, ENC_NA);
1829                     proto_item_append_text(ti, " %s", tvb_ip6_to_str(tvb, opt_offset));
1830                     opt_offset += 16;
1831
1832                 }
1833                 break;
1834             }
1835             case ND_OPT_FLAGS_EXTENSION: /* RA Flags Extension Option (26) */
1836             {
1837                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_efo, tvb, opt_offset, 6, ENC_NA);
1838                 flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_flag_efo);
1839
1840                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_m, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1841                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_o, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1842                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_h, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1843                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_prf, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1844                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_p, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1845                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_rsv, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1846                 opt_offset += 2;
1847
1848                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
1849                 opt_offset += 4;
1850                 break;
1851             }
1852             case ND_OPT_HANDOVER_KEY_REQUEST: /* Handover Key Request Option (27) */
1853             {
1854                 int par_len;
1855                 guint padd_length;
1856
1857                 /* Pad Length */
1858                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_pad_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1859                 padd_length = tvb_get_guint8(tvb, opt_offset);
1860                 opt_offset += 1;
1861
1862                 /* AT */
1863                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_at, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1864
1865                 /* Reserved */
1866                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1867                 opt_offset += 1;
1868
1869                 /* Handover Key Encryption Public Key */
1870                 par_len = opt_len-4-padd_length;
1871                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_encryption_public_key, tvb, opt_offset, par_len, ENC_NA);
1872                 opt_offset += par_len;
1873
1874                 /* Padding */
1875                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_padding, tvb, opt_offset, padd_length, ENC_NA);
1876                 opt_offset += 1;
1877                 break;
1878             }
1879             case ND_OPT_HANDOVER_KEY_REPLY: /* Handover Key Reply Option (28) */
1880             {
1881                 int par_len;
1882                 guint padd_length;
1883
1884                 /* Pad Length */
1885                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_pad_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1886                 padd_length = tvb_get_guint8(tvb, opt_offset);
1887                 opt_offset += 1;
1888
1889                 /* AT */
1890                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_at, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1891
1892                 /* Reserved */
1893                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1894                 opt_offset += 1;
1895
1896                 /* Lifetime */
1897                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_lifetime, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
1898                 opt_offset += 2;
1899
1900                 /* Encrypted Handover Key */
1901                 par_len = opt_len-6-padd_length;
1902                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_encrypted_handover_key, tvb, opt_offset, par_len, ENC_NA);
1903                 opt_offset += par_len;
1904
1905                 /* Padding */
1906                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_padding, tvb, opt_offset, padd_length, ENC_NA);
1907                 opt_offset += 1;
1908                 break;
1909             }
1910             case ND_OPT_HANDOVER_ASSIST_INFO: /* Handover Assist Information Option (29) */
1911             {
1912                 guint8 hai_len;
1913                 int padd_length;
1914                 /* Option-Code */
1915                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hai_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1916                 opt_offset += 1;
1917
1918                 /* HAI Length */
1919                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hai_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1920                 hai_len = tvb_get_guint8(tvb, opt_offset);
1921                 opt_offset += 1;
1922
1923                 /* HAI Value */
1924                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hai_value, tvb, opt_offset, hai_len, ENC_NA);
1925                 opt_offset += hai_len;
1926
1927                 /* Padding... */
1928                 padd_length = opt_len - opt_offset;
1929                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
1930                 opt_offset += padd_length;
1931
1932                 break;
1933             }
1934             case ND_OPT_MOBILE_NODE_ID: /* Mobile Node Identifier Option (30) */
1935             {
1936                 guint8 mn_len;
1937                 int padd_length;
1938                 /* Option-Code */
1939                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_mn_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1940                 opt_offset += 1;
1941
1942                 /* MN Length */
1943                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_mn_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
1944                 mn_len = tvb_get_guint8(tvb, opt_offset);
1945                 opt_offset += 1;
1946
1947                 /* MN Value */
1948                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_mn_value, tvb, opt_offset, mn_len, ENC_NA);
1949                 opt_offset += mn_len;
1950
1951                 /* Padding... */
1952                 padd_length = opt_len - opt_offset;
1953                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
1954                 opt_offset += padd_length;
1955
1956                 break;
1957             }
1958             case ND_OPT_DNS_SEARCH_LIST: /* DNS Search List Option (31) */
1959             {
1960                 int dnssl_len;
1961                 const guchar *dnssl_name;
1962
1963                 /* Reserved */
1964                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
1965                 opt_offset += 2;
1966
1967                 /* DNSSL Lifetime */
1968                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_dnssl_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
1969                 switch(tvb_get_ntohl(tvb, opt_offset)){
1970                     case 0xffffffff:
1971                         proto_item_append_text(ti_opt, " (Infinity)");
1972                         break;
1973                     default:
1974                         break;
1975                 }
1976                 opt_offset += 4;
1977                 while(opt_offset < (offset + opt_len) ) {
1978
1979                     if(tvb_get_guint8(tvb, opt_offset) == 0){ /* if Zero there is padding, skip the loop */
1980                         break;
1981                     }
1982                     dnssl_len = get_dns_name(tvb, opt_offset, 0, opt_offset, &dnssl_name);
1983                     proto_tree_add_string(icmp6opt_tree, hf_icmpv6_opt_dnssl, tvb, opt_offset, dnssl_len, dnssl_name);
1984                     proto_item_append_text(ti, " %s", dnssl_name);
1985                     opt_offset += dnssl_len;
1986
1987                 }
1988                 break;
1989             }
1990             case ND_OPT_PROXY_SIGNATURE: /* Proxy Signature Option (32) */
1991             {
1992                 int par_len;
1993
1994                 /* Reserved */
1995                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
1996                 opt_offset +=  2;
1997
1998                 /* Key Hash
1999                  * A 128-bit field containing the most significant (leftmost) 128
2000                  * bits of a SHA-1 [14] hash of the public key used for constructing
2001                  * the signature.
2002                  */
2003                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_ps_key_hash, tvb, opt_offset, 16, ENC_NA);
2004                 opt_offset += 16;
2005
2006                 /* Digital Signature */
2007                 par_len = opt_len - 20;
2008                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_digital_signature_padding , tvb, opt_offset, par_len, ENC_NA);
2009                 opt_offset += par_len;
2010                 /* Padding */
2011                 /* TODO: Calculate padding length and exlude from the signature */
2012                 break;
2013             }
2014             case ND_OPT_ADDR_REGISTRATION: /* Address Registration (TBD1 Pending IANA...) */
2015             {
2016                 /* 6lowpan-ND */
2017                 guint8 status;
2018
2019                 /* Status */
2020                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_aro_status, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2021                 status = tvb_get_guint8(tvb, opt_offset);
2022                 opt_offset += 1;
2023
2024                 /* Reserved */
2025                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 3, ENC_NA);
2026                 opt_offset += 3;
2027
2028                 /* Lifetime */
2029                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_aro_registration_lifetime, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
2030                 opt_offset += 2;
2031
2032                 /* EUI-64 */
2033                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_aro_eui64, tvb, opt_offset, 8, ENC_BIG_ENDIAN);
2034                 proto_item_append_text(ti, " : Register %s %s", tvb_eui64_to_str(tvb, opt_offset, FALSE), val_to_str(status, nd_opt_6lowpannd_status_val, "Unknown %d"));
2035                 opt_offset += 8;
2036
2037             }
2038             break;
2039             case ND_OPT_6LOWPAN_CONTEXT: /* 6LoWPAN Context (TBD2 Pending IANA...) */
2040             {
2041                 /* 6lowpan-ND */
2042                 guint8 context_len;
2043                 struct e_in6_addr context_prefix;
2044
2045                 /* Context Length */
2046                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_6co_context_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2047                 context_len = tvb_get_guint8(tvb, opt_offset);
2048                 opt_offset += 1;
2049
2050                 /*  Flags & CID */
2051                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_6co_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2052                 flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_flag_6lowpan);
2053                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_6co_flag_c, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2054                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_6co_flag_cid, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2055                 proto_tree_add_item(flag_tree, hf_icmpv6_opt_6co_flag_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2056                 opt_offset += 1;
2057
2058                 /* Reserved */
2059                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
2060                 opt_offset += 2;
2061
2062                 /* Lifetime */
2063                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_6co_valid_lifetime, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
2064                 opt_offset += 2;
2065
2066                 /* Context */
2067                 switch(opt_len){
2068                     case 8: /* Default Option Length without context prefix */
2069                         proto_item_append_text(ti, " ::/%d", context_len);
2070                         break;
2071                     case 16:
2072                         memset(&context_prefix, 0, sizeof(context_prefix));
2073                         tvb_memcpy(tvb, (guint8 *)&context_prefix.bytes, opt_offset, 8);
2074                         proto_tree_add_ipv6(icmp6opt_tree, hf_icmpv6_opt_6co_context_prefix, tvb, opt_offset, 8, context_prefix.bytes);
2075                         proto_item_append_text(ti, " %s/%d", ip6_to_str(&context_prefix), context_len);
2076                         opt_offset += 8;
2077                         break;
2078                     case 24:
2079                         proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_6co_context_prefix, tvb, opt_offset, 16, ENC_NA);
2080                         proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), context_len);
2081                         opt_offset += 16;
2082                         break;
2083                     default:
2084                         expert_add_info_format(pinfo, ti_opt_len, PI_MALFORMED, PI_ERROR, "Invalid Option Length");
2085                         break;
2086                 }
2087             }
2088             break;
2089             case ND_OPT_AUTH_BORDER_ROUTER: /* Authoritative Border Router (33) */
2090             {
2091                 guint16 version;
2092
2093                 /* Version */
2094                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_abro_version, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
2095                 version = tvb_get_ntohs(tvb, opt_offset);
2096                 opt_offset += 2;
2097
2098                 /* Reserved */
2099                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
2100                 opt_offset += 4;
2101
2102                 /* 6LBR Address */
2103                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_abro_6lbr_address, tvb, opt_offset, 16, ENC_NA);
2104                 proto_item_append_text(ti, " : Version %d, 6LBR : %s", version, tvb_ip6_to_str(tvb, opt_offset));
2105                 opt_offset += 16;
2106
2107             }
2108             break;
2109
2110             default :
2111                 expert_add_info_format(pinfo, ti, PI_UNDECODED, PI_NOTE,
2112                                        "Dissector for ICMPv6 Option (%d)"
2113                                        " code not implemented, Contact Wireshark developers"
2114                                        " if you want this supported", opt_type);
2115                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_data, tvb, opt_offset, opt_len, ENC_NA);
2116                 opt_offset += opt_len;
2117                 break;
2118
2119         } /* switch (opt_type) */
2120
2121         offset += opt_len;
2122
2123         if(offset > opt_offset){
2124             ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_unknown_data, tvb, opt_offset, offset - opt_offset, ENC_NA);
2125             expert_add_info_format(pinfo, ti_opt, PI_MALFORMED, PI_ERROR, "Unknown Data (not interpreted)");
2126         }
2127         /* Close the ) to option root label */
2128         proto_item_append_text(ti, ")");
2129     }
2130     return offset;
2131 }
2132
2133
2134 /* RPL: draft-ietf-roll-rpl-19.txt: Routing over Low-Power and Lossy Networks. */
2135 static int
2136 dissect_icmpv6_rpl_opt(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
2137 {
2138     proto_tree *icmp6opt_tree, *flag_tree;
2139     proto_item *ti, *ti_opt, *ti_opt_len;
2140     guint8 opt_type;
2141     int opt_len;
2142     int opt_offset;
2143
2144     while ((int)tvb_reported_length(tvb) > offset) {
2145         /* there are more options */
2146
2147         /* ICMPv6 RPL Option */
2148         ti = proto_tree_add_item(tree, hf_icmpv6_rpl_opt, tvb, offset, 1, ENC_NA);
2149         icmp6opt_tree = proto_item_add_subtree(ti, ett_icmpv6_rpl_opt);
2150         opt_offset = offset;
2151
2152         /* Option type */
2153         proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_type, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2154         opt_type = tvb_get_guint8(tvb, opt_offset);
2155         opt_offset += 1;
2156
2157         /* Add option name to option root label */
2158         proto_item_append_text(ti, " (%s", val_to_str(opt_type, rpl_option_vals, "Unknown %d"));
2159
2160         /* The Pad1 option is a special case, and contains no data. */
2161         if (opt_type == RPL_OPT_PAD1) {
2162             offset += 1;
2163             proto_item_append_text(ti, ")");
2164             continue;
2165         }
2166
2167         /* Option length */
2168         ti_opt_len = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2169         opt_len = tvb_get_guint8(tvb, opt_offset);
2170         proto_item_set_len(ti, opt_len + 2);
2171         opt_offset += 1;
2172
2173         /* decode... */
2174         switch (opt_type) {
2175             case RPL_OPT_PADN:
2176                 /* n-byte padding */
2177                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_padn, tvb, opt_offset, opt_len, ENC_NA);
2178                 proto_item_append_text(ti_opt, " (Length : %i bytes)", opt_len);
2179                 opt_offset += opt_len;
2180                 break;
2181
2182             case RPL_OPT_METRIC:
2183                 /* DAG metric container */
2184                 /* See draft-ietf-roll-routing-metrics for formatting. */
2185                 break;
2186             case RPL_OPT_ROUTING: {
2187                 guint8 prefix_len;
2188                 struct e_in6_addr prefix;
2189
2190                 /* Prefix length */
2191                 prefix_len = tvb_get_guint8(tvb, opt_offset);
2192                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_route_prefix_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2193                 opt_offset +=1;
2194
2195                 /* Flags */
2196                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_route_flag, tvb, opt_offset, 1, ENC_NA);
2197                 flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_rpl_flag_routing);
2198
2199                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_route_pref, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2200                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_route_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2201                 opt_offset +=1;
2202
2203                 /* Prefix lifetime. */
2204                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_route_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
2205
2206                 switch(tvb_get_ntohl(tvb, opt_offset)){
2207                     case 0xffffffff:
2208                         proto_item_append_text(ti_opt, " (Infinity)");
2209                         break;
2210                     default:
2211                         break;
2212                 }
2213                 opt_offset += 4;
2214
2215                 switch(opt_len){
2216                     case 6: /* Default Option Length without prefix */
2217                         proto_item_append_text(ti, " ::/%d", prefix_len);
2218                         break;
2219                     case 14:
2220                         memset(&prefix, 0, sizeof(prefix));
2221                         tvb_memcpy(tvb, (guint8 *)&prefix.bytes, opt_offset, 8);
2222                         proto_tree_add_ipv6(icmp6opt_tree, hf_icmpv6_rpl_opt_route_prefix, tvb, opt_offset, 8, prefix.bytes);
2223                         proto_item_append_text(ti, " %s/%d", ip6_to_str(&prefix), prefix_len);
2224                         opt_offset += 8;
2225                         break;
2226                     case 22:
2227                         proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_route_prefix, tvb, opt_offset, 16, ENC_NA);
2228                         proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
2229                         opt_offset += 16;
2230                         break;
2231                     default:
2232                         expert_add_info_format(pinfo, ti_opt_len, PI_MALFORMED, PI_ERROR, "Invalid Option Length");
2233                         break;
2234                 }
2235                 break;
2236             }
2237             case RPL_OPT_CONFIG: {
2238
2239                 /* Flags */
2240                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_flag, tvb, opt_offset, 1, ENC_NA);
2241                 flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_rpl_flag_config);
2242
2243                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_config_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2244                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_config_auth, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2245                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_config_pcs, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2246                 opt_offset += 1;
2247
2248                 /* DIOIntervalDoublings */
2249                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_doublings, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2250                 opt_offset += 1;
2251
2252                 /* DIOIntervalMin */
2253                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_min_interval, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2254                 opt_offset += 1;
2255
2256                 /* DIORedundancyConstant */
2257                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_redundancy, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2258                 opt_offset += 1;
2259
2260                 /* MaxRankIncrease */
2261                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_rank_incr, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
2262                 opt_offset += 2;
2263
2264                 /* MinHopRankInc */
2265                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_hop_rank_inc, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
2266                 opt_offset += 2;
2267
2268                 /* OCP */
2269                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_ocp, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
2270                 opt_offset += 2;
2271
2272                 /* Reserved */
2273                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_rsv, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2274                 opt_offset += 1;
2275
2276                 /* Default Lifetime */
2277                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_def_lifetime, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2278                 opt_offset += 1;
2279
2280                 /* Lifetime Unit */
2281                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_lifetime_unit, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
2282                 opt_offset += 2;
2283                 break;
2284             }
2285             case RPL_OPT_TARGET: {
2286                 guint8              prefix_len;
2287                 struct e_in6_addr   target_prefix;
2288
2289                 /* Flag */
2290                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_target_flag, tvb, opt_offset, 1, ENC_NA);
2291                 opt_offset += 1;
2292
2293                 /* Prefix length */
2294                 prefix_len = tvb_get_guint8(tvb, opt_offset);
2295                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_target_prefix_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2296                 opt_offset += 1;
2297
2298                 /* Target Prefix */
2299
2300                 switch(opt_len){
2301                     case 2: /* Default Option Length without prefix */
2302                         proto_item_append_text(ti, " ::/%d", prefix_len);
2303                         break;
2304                     case 10:
2305                         memset(&target_prefix, 0, sizeof(target_prefix));
2306                         tvb_memcpy(tvb, (guint8 *)&target_prefix.bytes, opt_offset, 8);
2307                         proto_tree_add_ipv6(icmp6opt_tree, hf_icmpv6_rpl_opt_target_prefix, tvb, opt_offset, 8, target_prefix.bytes);
2308                         proto_item_append_text(ti, " %s/%d", ip6_to_str(&target_prefix), prefix_len);
2309                         opt_offset += 8;
2310                         break;
2311                     case 18:
2312                         proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_target_prefix, tvb, opt_offset, 16, ENC_NA);
2313                         proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
2314                         opt_offset += 16;
2315                         break;
2316                     default:
2317                         expert_add_info_format(pinfo, ti_opt_len, PI_MALFORMED, PI_ERROR, "Invalid Option Length");
2318                         break;
2319                 }
2320                 break;
2321             }
2322             case RPL_OPT_TRANSIT: {
2323                 /* Flags */
2324                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_transit_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2325                 flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_rpl_flag_transit);
2326
2327                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_transit_flag_e, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2328                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_transit_flag_rsv, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2329                 opt_offset += 1;
2330
2331                 /* Path Control */
2332                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_transit_pathctl, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2333                 opt_offset += 1;
2334
2335                 /* Path Sequence */
2336                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_transit_pathseq, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2337                 opt_offset += 1;
2338
2339                 /* Path Lifetime */
2340                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_transit_pathlifetime, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2341                 opt_offset += 1;
2342
2343                 /* Option contains parent */
2344                 if(opt_len > 4)
2345                 {
2346                     proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_transit_parent, tvb, opt_offset, 16, ENC_NA);
2347                     proto_item_append_text(ti, " %s", tvb_ip6_to_str(tvb, opt_offset));
2348                     opt_offset += 16;
2349                 }
2350
2351                 break;
2352             }
2353             case RPL_OPT_SOLICITED: {
2354
2355                 /*Instance ID */
2356                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_solicited_instance, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2357                 opt_offset += 1;
2358
2359                 /* Flags */
2360                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_solicited_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2361                 flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_rpl_flag_solicited);
2362
2363                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_solicited_flag_v, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2364                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_solicited_flag_i, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2365                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_solicited_flag_d, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2366                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_solicited_flag_rsv, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2367                 opt_offset += 1;
2368
2369                 /* DODAG ID */
2370                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_solicited_dodagid, tvb, opt_offset, 16, ENC_NA);
2371                 opt_offset += 16;
2372
2373                 /* Version Number */
2374                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_solicited_version, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2375                 opt_offset += 1;
2376
2377                 break;
2378             }
2379             case RPL_OPT_PREFIX: {
2380                 /* Destination prefix option. */
2381                 guint8              prefix_len;
2382
2383                 /* Prefix length */
2384                 prefix_len = tvb_get_guint8(tvb, opt_offset);
2385                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_prefix_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2386                 opt_offset +=1;
2387
2388                 /* Flags */
2389                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_prefix_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2390                 flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_rpl_flag_prefix);
2391
2392                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_prefix_flag_l, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2393                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_prefix_flag_a, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2394                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_prefix_flag_r, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2395                 proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_prefix_flag_rsv, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
2396                 opt_offset += 1;
2397
2398                 /* Valid lifetime. */
2399                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_prefix_vlifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
2400                 switch(tvb_get_ntohl(tvb, opt_offset)){
2401                     case 0xffffffff:
2402                         proto_item_append_text(ti_opt, " (Infinity)");
2403                         break;
2404                     default:
2405                         break;
2406                 }
2407                 opt_offset += 4;
2408
2409                 /* Preferrred Lifetime */
2410                 ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_prefix_plifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
2411                 switch(tvb_get_ntohl(tvb, opt_offset)){
2412                     case 0xffffffff:
2413                         proto_item_append_text(ti_opt, " (Infinity)");
2414                         break;
2415                     default:
2416                         break;
2417                 }
2418                 opt_offset += 4;
2419
2420                 /* 4 reserved bytes. */
2421                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_reserved, tvb, opt_offset, 4, ENC_NA);
2422                 opt_offset += 4;
2423
2424                 /* Prefix */
2425                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_prefix, tvb, opt_offset, 16, ENC_NA);
2426                 proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
2427                 opt_offset += 16;
2428
2429                 break;
2430             }
2431
2432             case RPL_OPT_TARGETDESC: {
2433
2434                 /* Descriptor */
2435                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_targetdesc, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
2436                 opt_offset += 4;
2437                 break;
2438             }
2439             default :
2440                 expert_add_info_format(pinfo, ti, PI_UNDECODED, PI_NOTE,
2441                                        "Dissector for ICMPv6 RPL Option"
2442                                        " (%d) code not implemented, Contact"
2443                                        " Wireshark developers if you want this supported", opt_type);
2444                 proto_tree_add_item(icmp6opt_tree, hf_icmpv6_data, tvb, opt_offset, opt_len, ENC_NA);
2445                 opt_offset += opt_len;
2446                 break;
2447         } /* switch (opt_type) */
2448
2449         offset += opt_len + 2;
2450
2451         if(offset > opt_offset){
2452             ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_unknown_data, tvb, opt_offset, offset - opt_offset, ENC_NA);
2453             expert_add_info_format(pinfo, ti_opt, PI_MALFORMED, PI_ERROR, "Unknown Data (not interpreted)");
2454         }
2455
2456         /* Close the ) to option root label */
2457         proto_item_append_text(ti, ")");
2458     } /* while */
2459     return offset;
2460 }
2461
2462 static int
2463 dissect_rpl_control(tvbuff_t *tvb, int rpl_offset, packet_info *pinfo _U_, proto_tree *icmp6_tree, guint8 icmp6_type _U_, guint8 icmp6_code)
2464 {
2465     proto_tree *flag_tree;
2466     proto_item *ti;
2467
2468     /* Secure RPL ? (ICMP Code start to 0x8x) */
2469     if(icmp6_code & ICMP6_RPL_SECURE)
2470     {
2471         guint8 kim, lvl;
2472
2473         /* Flags */
2474         ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2475         flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_secure);
2476         proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_flag_t, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2477         proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_flag_rsv, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2478         rpl_offset += 1;
2479
2480         /* Algorithm */
2481         ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_algorithm, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2482         flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_secure);
2483         proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_algorithm_encryption, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2484         proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_algorithm_signature, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2485         rpl_offset += 1;
2486
2487         /* KIM & LVL */
2488         ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2489         flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_secure);
2490         proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_kim, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2491         proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_lvl, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2492         proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_rsv, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2493         kim = tvb_get_guint8(tvb, rpl_offset) & RPL_SECURE_KIM >> 6;
2494         lvl = tvb_get_guint8(tvb, rpl_offset) & RPL_SECURE_LVL;
2495         rpl_offset += 1;
2496
2497         /* Flags */
2498         proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2499         rpl_offset += 1;
2500
2501         /* Counter */
2502         proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_counter, tvb, rpl_offset, 4, ENC_BIG_ENDIAN);
2503         rpl_offset += 4;
2504
2505         /*  Key Identifier */
2506         switch(kim){
2507             case 0:
2508             {
2509                 proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_key_index, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2510                 rpl_offset += 1;
2511                 break;
2512             }
2513             case 1:
2514             {
2515                 /* No Key Identifier */
2516                 break;
2517             }
2518             case 2:
2519             {
2520                 proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_key_source, tvb, rpl_offset, 8, ENC_NA);
2521                 rpl_offset += 8;
2522                 proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_key_index, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2523                 rpl_offset += 1;
2524                 break;
2525             }
2526             case 3:
2527             {
2528                 if(lvl == 1 || lvl == 3)
2529                 {
2530                     proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_key_source, tvb, rpl_offset, 8, ENC_NA);
2531                     rpl_offset += 8;
2532                     proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_key_index, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2533                     rpl_offset += 1;
2534                 }
2535                 break;
2536             }
2537
2538         }
2539
2540     }
2541     switch(icmp6_code){
2542         case ICMP6_RPL_DIS: /* DODAG Information Solicitation (0) */
2543         case ICMP6_RPL_SDIS: /* Secure DODAG Information Solicitation (128) */
2544         {
2545             /* Flags */
2546             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dis_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2547             rpl_offset += 1;
2548
2549             /* Reserved */
2550             proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, rpl_offset, 1, ENC_NA);
2551             rpl_offset += 1;
2552
2553             /* RPL Options */
2554             rpl_offset = dissect_icmpv6_rpl_opt(tvb, rpl_offset, pinfo, icmp6_tree);
2555             break;
2556         }
2557         case ICMP6_RPL_DIO: /* DODAG Information Object (1) */
2558         case ICMP6_RPL_SDIO: /* Secure DODAG Information Object (129) */
2559         {
2560             /* RPLInstanceID */
2561             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_instance, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2562             rpl_offset += 1;
2563
2564             /* Version Number */
2565             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_version, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2566             rpl_offset += 1;
2567
2568             /* Rank */
2569             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_rank, tvb, rpl_offset, 2, ENC_BIG_ENDIAN);
2570             rpl_offset += 2;
2571
2572             /* Flags */
2573             ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2574             flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_rpl_dio);
2575             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dio_flag_g, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2576             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dio_flag_0, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2577             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dio_flag_mop, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2578             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dio_flag_prf, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2579             rpl_offset += 1;
2580
2581             /* Destination Advertisement Trigger Sequence Number (DTSN) */
2582             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_dtsn, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2583             rpl_offset += 1;
2584
2585             /* Flags */
2586             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2587             rpl_offset += 1;
2588
2589             /* Reserved */
2590             proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, rpl_offset, 1, ENC_NA);
2591             rpl_offset += 1;
2592
2593             /* DODAGID */
2594             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_dagid, tvb, rpl_offset, 16, ENC_NA);
2595             rpl_offset += 16;
2596
2597             /* RPL Options */
2598             rpl_offset = dissect_icmpv6_rpl_opt(tvb, rpl_offset, pinfo, icmp6_tree);
2599             break;
2600         }
2601         case ICMP6_RPL_DAO: /* Destination Advertisement Object (2) */
2602         case ICMP6_RPL_SDAO: /* Secure Destination Advertisement Object (130) */
2603         {
2604             guint8 flags;
2605
2606             /* DAO Instance */
2607             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dao_instance, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2608             rpl_offset += 1;
2609
2610             /* Flags */
2611             ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dao_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2612             flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_rpl_dao);
2613             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dao_flag_k, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2614             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dao_flag_d, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2615             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dao_flag_rsv, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2616             flags = tvb_get_guint8(tvb, rpl_offset);
2617             rpl_offset += 1;
2618
2619             /* Reserved */
2620             proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, rpl_offset, 1, ENC_NA);
2621             rpl_offset += 1;
2622
2623             /* Sequence */
2624             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dao_sequence, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2625             rpl_offset += 1;
2626
2627             /* DODAGID */
2628             if(flags & RPL_DAO_FLAG_D)
2629             {
2630                 proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dao_dodagid, tvb, rpl_offset, 16, ENC_NA);
2631                 rpl_offset += 16;
2632             }
2633             /* Options */
2634             rpl_offset = dissect_icmpv6_rpl_opt(tvb, rpl_offset, pinfo, icmp6_tree);
2635             break;
2636         }
2637         case ICMP6_RPL_DAOACK: /* Destination Advertisement Object Acknowledgment (3) */
2638         case ICMP6_RPL_SDAOACK: /* Secure Destination Advertisement Object Acknowledgment (131) */
2639         {
2640             guint8 flags;
2641
2642             /* DAO Instance */
2643             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_daoack_instance, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2644             rpl_offset += 1;
2645
2646             /* Flags */
2647             ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_daoack_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2648             flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_rpl_daoack);
2649             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_daoack_flag_d, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2650             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_daoack_flag_rsv, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2651             flags = tvb_get_guint8(tvb, rpl_offset);
2652             rpl_offset += 1;
2653
2654             /* DAO Sequence */
2655             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_daoack_sequence, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2656             rpl_offset += 1;
2657
2658             /* Status */
2659             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_daoack_status, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2660             rpl_offset += 1;
2661
2662             /* DODAGID */
2663             if(flags & RPL_DAOACK_FLAG_D)
2664             {
2665                 proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_daoack_dodagid, tvb, rpl_offset, 16, ENC_NA);
2666                 rpl_offset += 16;
2667             }
2668
2669             /* Options */
2670             rpl_offset = dissect_icmpv6_rpl_opt(tvb, rpl_offset, pinfo, icmp6_tree);
2671             break;
2672         }
2673        case ICMP6_RPL_CC:
2674        {
2675             /* CC Instance */
2676             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_cc_instance, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2677             rpl_offset += 1;
2678
2679             /* Flags */
2680             ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_cc_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2681             flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_rpl_cc);
2682             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_cc_flag_r, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2683             proto_tree_add_item(flag_tree, hf_icmpv6_rpl_cc_flag_rsv, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
2684             rpl_offset += 1;
2685
2686             /* CC Nonce */
2687             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_cc_nonce, tvb, rpl_offset, 2, ENC_BIG_ENDIAN);
2688             rpl_offset += 2;
2689
2690             /* DODAGID */
2691             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_cc_dodagid, tvb, rpl_offset, 16, ENC_NA);
2692             rpl_offset += 16;
2693
2694             /* Destination Counter */
2695             proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_cc_destination_counter, tvb, rpl_offset, 4, ENC_BIG_ENDIAN);
2696             rpl_offset += 4;
2697
2698             /* Options */
2699             rpl_offset = dissect_icmpv6_rpl_opt(tvb, rpl_offset, pinfo, icmp6_tree);
2700             break;
2701        }
2702
2703     }
2704     return rpl_offset;
2705 }
2706 /* RFC 4620 - IPv6 Node Information Queries */
2707
2708 static int
2709 dissect_nodeinfo(tvbuff_t *tvb, int ni_offset, packet_info *pinfo _U_, proto_tree *tree, guint8 icmp6_type, guint8 icmp6_code)
2710 {
2711     proto_tree *flag_tree;
2712     proto_item *ti;
2713     guint16 qtype;
2714
2715     /* Qtype */
2716     proto_tree_add_item(tree, hf_icmpv6_ni_qtype, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
2717     qtype = tvb_get_ntohs(tvb, ni_offset);
2718     ni_offset += 2;
2719
2720     /* Flags */
2721     ti = proto_tree_add_item(tree, hf_icmpv6_ni_flag, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
2722     flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_ni);
2723     proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_g, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
2724     proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_s, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
2725     proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_l, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
2726     proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_c, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
2727     proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_a, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
2728     proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_t, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
2729     proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_rsv, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
2730     ni_offset += 2;
2731
2732     /* Nonce */
2733     proto_tree_add_item(tree, hf_icmpv6_ni_nonce, tvb, ni_offset, 8, ENC_BIG_ENDIAN);
2734     ni_offset += 8;
2735
2736     /* Data ? */
2737     if(tvb_reported_length_remaining(tvb, ni_offset) == 0){
2738         return ni_offset;
2739     }
2740
2741     if(icmp6_type == ICMP6_NI_QUERY){
2742         switch(icmp6_code){
2743             case ICMP6_NI_SUBJ_IPV6: {
2744                 proto_tree_add_item(tree, hf_icmpv6_ni_query_subject_ipv6, tvb, ni_offset, 16, ENC_NA);
2745                 ni_offset += 16;
2746                 break;
2747             }
2748             case ICMP6_NI_SUBJ_FQDN: {
2749                 int fqdn_len;
2750                 const guchar *fqdn_name;
2751                 fqdn_len = get_dns_name(tvb, ni_offset, 0, ni_offset, &fqdn_name);
2752                 proto_tree_add_string(tree, hf_icmpv6_ni_query_subject_fqdn, tvb, ni_offset, fqdn_len, fqdn_name);
2753                 ni_offset += fqdn_len;
2754                 break;
2755             }
2756             case ICMP6_NI_SUBJ_IPV4: {
2757                 proto_tree_add_item(tree, hf_icmpv6_ni_query_subject_ipv4, tvb, ni_offset, 4, ENC_BIG_ENDIAN);
2758                 ni_offset += 4;
2759                 break;
2760             }
2761         }
2762     } else { /* It is ICMP6_NI_REPLY */
2763         switch(qtype){
2764             case NI_QTYPE_NOOP:
2765                 break;
2766             case NI_QTYPE_NODENAME: {
2767                 int node_len;
2768                 const guchar *node_name;
2769                 /* TTL */
2770                 proto_tree_add_item(tree, hf_icmpv6_ni_reply_node_ttl, tvb, ni_offset, 4, ENC_BIG_ENDIAN);
2771                 ni_offset += 4;
2772                 /* Data ? */
2773                 if(tvb_reported_length_remaining(tvb, ni_offset) == 0){
2774                     return ni_offset;
2775                 }
2776                 while(ni_offset < (int)tvb_reported_length(tvb) ) {
2777
2778                     if(tvb_get_guint8(tvb, ni_offset) == 0){ /* if Zero there is padding, skip the loop */
2779                         break;
2780                     }
2781                     /* Node Name */
2782                     node_len = get_dns_name(tvb, ni_offset, 0, ni_offset, &node_name);
2783                     proto_tree_add_string(tree, hf_icmpv6_ni_reply_node_name, tvb, ni_offset, node_len, node_name);
2784                     ni_offset += node_len;
2785                 }
2786                 break;
2787             }
2788             case NI_QTYPE_NODEADDR: {
2789                 while(ni_offset < (int)tvb_reported_length(tvb) ) {
2790                     /* TTL */
2791                     proto_tree_add_item(tree, hf_icmpv6_ni_reply_node_ttl, tvb, ni_offset, 4, ENC_BIG_ENDIAN);
2792                     ni_offset += 4;
2793                     /* Node Addresses */
2794                     proto_tree_add_item(tree, hf_icmpv6_ni_reply_node_address, tvb, ni_offset, 16, ENC_NA);
2795                     ni_offset += 16;
2796                 }
2797                 break;
2798             }
2799             case NI_QTYPE_IPV4ADDR: {
2800                 while(ni_offset < (int)tvb_reported_length(tvb) ) {
2801                     /* TTL */
2802                     proto_tree_add_item(tree, hf_icmpv6_ni_reply_node_ttl, tvb, ni_offset, 4, ENC_BIG_ENDIAN);
2803                     ni_offset += 4;
2804                     /* IPv4 Address */
2805                     proto_tree_add_item(tree, hf_icmpv6_ni_reply_ipv4_address, tvb, ni_offset, 4, ENC_BIG_ENDIAN);
2806                     ni_offset += 4;
2807                 }
2808                 break;
2809             }
2810         }
2811     }
2812     return ni_offset;
2813 }
2814 /* RFC 2894 - Router Renumbering for IPv6 */
2815
2816 static int
2817 dissect_rrenum(tvbuff_t *tvb, int rr_offset, packet_info *pinfo _U_, proto_tree *tree, guint8 icmp6_type _U_, guint8 icmp6_code)
2818 {
2819     proto_tree *flag_tree, *mp_tree, *up_tree, *rm_tree;
2820     proto_item *ti, *ti_mp, *ti_up, *ti_rm;
2821
2822     /* Sequence Number */
2823     proto_tree_add_item(tree, hf_icmpv6_rr_sequencenumber, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
2824     rr_offset += 4;
2825
2826     /* Segment Number */
2827     proto_tree_add_item(tree, hf_icmpv6_rr_segmentnumber, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2828     rr_offset += 1;
2829
2830     /* Flags */
2831     ti = proto_tree_add_item(tree, hf_icmpv6_rr_flag, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2832     flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_rr);
2833     proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_t, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2834     proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_r, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2835     proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_a, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2836     proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_s, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2837     proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_p, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2838     proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_rsv, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2839     rr_offset += 1;
2840
2841     /* Max Delay */
2842     proto_tree_add_item(tree, hf_icmpv6_rr_maxdelay, tvb, rr_offset, 2, ENC_BIG_ENDIAN);
2843     rr_offset += 2;
2844
2845     /* Reserved */
2846     proto_tree_add_item(tree, hf_icmpv6_reserved, tvb, rr_offset, 4, ENC_NA);
2847     rr_offset += 4;
2848
2849     /* Data ? */
2850     if(tvb_reported_length_remaining(tvb, rr_offset) == 0){
2851         return rr_offset;
2852     }
2853
2854     if(icmp6_code == ICMP6_ROUTER_RENUMBERING_COMMAND){
2855         /* Match-Prefix Part */
2856         guint8 opcode, matchlen, minlen, maxlen;
2857
2858         ti_mp = proto_tree_add_item(tree, hf_icmpv6_rr_pco_mp_part, tvb, rr_offset, 24, ENC_NA);
2859         mp_tree = proto_item_add_subtree(ti_mp, ett_icmpv6_rr_mp);
2860
2861         /* OpCode */
2862         proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_opcode, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2863         opcode = tvb_get_guint8(tvb, rr_offset);
2864         rr_offset += 1;
2865
2866         /* OpLength */
2867         proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_oplength, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2868         rr_offset += 1;
2869
2870         /* Ordinal */
2871         proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_ordinal, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2872         rr_offset += 1;
2873
2874         /* MatchLen  */
2875         proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_matchlen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2876         matchlen = tvb_get_guint8(tvb, rr_offset);
2877         rr_offset += 1;
2878
2879         /* MinLen  */
2880         proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_minlen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2881         minlen = tvb_get_guint8(tvb, rr_offset);
2882         rr_offset += 1;
2883
2884         /* MaxLen  */
2885         proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_maxlen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2886         maxlen = tvb_get_guint8(tvb, rr_offset);
2887         rr_offset += 1;
2888
2889         /* Reserved  */
2890         proto_tree_add_item(mp_tree, hf_icmpv6_reserved, tvb, rr_offset, 2, ENC_NA);
2891         rr_offset += 2;
2892
2893         /* Match Prefix  */
2894         proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_matchprefix, tvb, rr_offset, 16, ENC_NA);
2895         rr_offset += 16;
2896
2897         /* Add Info (Prefix, Length...) to Match Prefix Part label */
2898         proto_item_append_text(ti_mp, ": %s %s/%u (%u-%u)", val_to_str(opcode, rr_pco_mp_opcode_val, "Unknown %d"), tvb_ip6_to_str(tvb, rr_offset), matchlen, minlen, maxlen);
2899
2900         while ((int)tvb_reported_length(tvb) > rr_offset) {
2901             /* Use-Prefix Part */
2902             guint8 uselen, keeplen;
2903
2904             ti_up = proto_tree_add_item(tree, hf_icmpv6_rr_pco_up_part, tvb, rr_offset, 32, ENC_NA);
2905             up_tree = proto_item_add_subtree(ti_up, ett_icmpv6_rr_up);
2906
2907             /* UseLen */
2908             proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_uselen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2909             uselen = tvb_get_guint8(tvb, rr_offset);
2910             rr_offset += 1;
2911
2912             /* KeepLen */
2913             proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_keeplen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2914             keeplen = tvb_get_guint8(tvb, rr_offset);
2915             rr_offset += 1;
2916
2917             /* FlagMask */
2918             ti = proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_flagmask, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2919             flag_tree = proto_item_add_subtree(ti, ett_icmpv6_rr_up_flag_mask);
2920             proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flagmask_l, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2921             proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flagmask_a, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2922             proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flagmask_reserved, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2923             rr_offset += 1;
2924
2925             /* RaFlags */
2926             ti = proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_raflags, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2927             flag_tree = proto_item_add_subtree(ti, ett_icmpv6_rr_up_flag_ra);
2928             proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_raflags_l, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2929             proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_raflags_a, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2930             proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_raflags_reserved, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2931             rr_offset += 1;
2932
2933             /* Valid Lifetime */
2934             ti = proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_validlifetime, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
2935             switch(tvb_get_ntohl(tvb, rr_offset)){
2936                 case 0xffffffff:
2937                     proto_item_append_text(ti, " (Infinity)");
2938                 break;
2939                 default:
2940                 break;
2941             }
2942             rr_offset += 4;
2943
2944             /* Preferred Lifetime */
2945             ti = proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_preferredlifetime, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
2946             switch(tvb_get_ntohl(tvb, rr_offset)){
2947                 case 0xffffffff:
2948                     proto_item_append_text(ti, " (Infinity)");
2949                 break;
2950                 default:
2951                 break;
2952             }
2953             rr_offset += 4;
2954
2955             /* Flags */
2956             ti = proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_flag, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
2957             flag_tree = proto_item_add_subtree(ti, ett_icmpv6_rr_up_flag);
2958             proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flag_v, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
2959             proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flag_p, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
2960             proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flag_reserved, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
2961             rr_offset += 4;
2962
2963             /* UsePrefix */
2964             proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_useprefix, tvb, rr_offset, 16, ENC_NA);
2965             rr_offset += 16;
2966
2967             /* Add Info (Prefix, Length...) to Use Prefix Part label */
2968             proto_item_append_text(ti_up, ": %s/%u (keep %u)", tvb_ip6_to_str(tvb, rr_offset), uselen, keeplen);
2969         }
2970
2971     }else if(icmp6_code == ICMP6_ROUTER_RENUMBERING_RESULT){
2972         while ((int)tvb_reported_length(tvb) > rr_offset) {
2973         guint8 matchlen;
2974         guint32 interfaceindex;
2975         /* Result Message */
2976
2977         ti_rm = proto_tree_add_item(tree, hf_icmpv6_rr_rm, tvb, rr_offset, 24, ENC_NA);
2978         rm_tree = proto_item_add_subtree(ti_rm, ett_icmpv6_rr_rm);
2979
2980         /* Flags */
2981         ti = proto_tree_add_item(rm_tree, hf_icmpv6_rr_rm_flag, tvb, rr_offset, 2, ENC_BIG_ENDIAN);
2982         flag_tree = proto_item_add_subtree(ti, ett_icmpv6_rr_rm_flag);
2983         proto_tree_add_item(flag_tree, hf_icmpv6_rr_rm_flag_b, tvb, rr_offset, 2, ENC_BIG_ENDIAN);
2984         proto_tree_add_item(flag_tree, hf_icmpv6_rr_rm_flag_f, tvb, rr_offset, 2, ENC_BIG_ENDIAN);
2985         proto_tree_add_item(flag_tree, hf_icmpv6_rr_rm_flag_reserved, tvb, rr_offset, 2, ENC_BIG_ENDIAN);
2986         rr_offset +=2;
2987
2988         /* Ordinal */
2989         proto_tree_add_item(rm_tree, hf_icmpv6_rr_rm_ordinal, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2990         rr_offset +=1;
2991
2992         /* MatchLen */
2993         proto_tree_add_item(rm_tree, hf_icmpv6_rr_rm_matchedlen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
2994         matchlen = tvb_get_guint8(tvb, rr_offset);
2995         rr_offset +=1;
2996
2997         /* InterfaceIndex */
2998         proto_tree_add_item(rm_tree, hf_icmpv6_rr_rm_interfaceindex, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
2999         interfaceindex = tvb_get_ntohl(tvb, rr_offset);
3000         rr_offset +=4;
3001
3002         /* MatchedPrefix */
3003         proto_tree_add_item(rm_tree, hf_icmpv6_rr_rm_matchedprefix, tvb, rr_offset, 16, ENC_NA);
3004         rr_offset +=16;
3005
3006         /* Add Info (Prefix, Length...) to Use Resultat Message label */
3007         proto_item_append_text(ti_rm, ": %s/%u (interface %u)", tvb_ip6_to_str(tvb, rr_offset), matchlen, interfaceindex);
3008         }
3009     }
3010     return rr_offset;
3011
3012 }
3013
3014
3015 static int
3016 dissect_mldrv2( tvbuff_t *tvb, guint32 offset, packet_info *pinfo _U_, proto_tree *tree )
3017 {
3018     proto_tree *mar_tree;
3019     proto_item *ti_mar;
3020     int mldr_offset = offset;
3021
3022     /* Reserved */
3023     proto_tree_add_item(tree, hf_icmpv6_reserved, tvb, mldr_offset, 2, ENC_NA );
3024     mldr_offset += 2;
3025
3026     /* Nr of Mcast Address Records (M) */
3027     proto_tree_add_item(tree, hf_icmpv6_mldr_nb_mcast_records, tvb, mldr_offset, 2, ENC_BIG_ENDIAN );
3028     mldr_offset += 2;
3029
3030     /* Multicast Address Record */
3031     while(mldr_offset < (int)tvb_reported_length(tvb) ) {
3032         guint8 aux_data_len, record_type;
3033         guint16 i, nb_sources;
3034         struct e_in6_addr multicast_address;
3035
3036         ti_mar = proto_tree_add_item(tree, hf_icmpv6_mldr_mar, tvb, mldr_offset, -1, ENC_NA);
3037         mar_tree = proto_item_add_subtree(ti_mar, ett_icmpv6_mar);
3038
3039         /* Record Type */
3040         proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_record_type, tvb, mldr_offset, 1, ENC_BIG_ENDIAN);
3041         record_type = tvb_get_guint8(tvb, mldr_offset);
3042         mldr_offset += 1;
3043
3044         /* Aux Data Len */
3045         proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_aux_data_len, tvb, mldr_offset, 1, ENC_BIG_ENDIAN);
3046         aux_data_len = tvb_get_guint8(tvb, mldr_offset);
3047         mldr_offset += 1;
3048
3049         /* Number of Sources (N) */
3050         proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_nb_sources, tvb, mldr_offset, 2, ENC_BIG_ENDIAN);
3051         nb_sources = tvb_get_ntohs(tvb, mldr_offset);
3052         mldr_offset += 2;
3053
3054         /* Multicast Address */
3055         proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_multicast_address, tvb, mldr_offset, 16, ENC_NA);
3056         tvb_get_ipv6(tvb, mldr_offset, &multicast_address);
3057         mldr_offset += 16;
3058
3059         /* Source Address */
3060         for (i=1; i <= nb_sources; i++){
3061             proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_source_address, tvb, mldr_offset, 16, ENC_NA);
3062             mldr_offset += 16;
3063         }
3064
3065         /* Auxiliary Data ? */
3066         if(aux_data_len)
3067         {
3068             proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_auxiliary_data, tvb, mldr_offset, aux_data_len * 4, ENC_NA);
3069             mldr_offset += aux_data_len * 4;
3070         }
3071
3072         /* Multicast Address Record Length */
3073         proto_item_set_len(ti_mar, 4 + 16 + (16 * nb_sources) + (aux_data_len * 4));
3074         proto_item_append_text(ti_mar, " %s: %s", val_to_str(record_type, mldr_record_type_val,"Unknown Record Type (%d)"), ip6_to_str(&multicast_address));
3075
3076     }
3077     return mldr_offset;
3078 }
3079
3080
3081 static int
3082 dissect_icmpv6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
3083 {
3084     proto_tree *icmp6_tree = NULL, *flag_tree = NULL;
3085     proto_item *ti = NULL, *hidden_item, *checksum_item = NULL, *code_item = NULL, *ti_flag = NULL;
3086     const char *code_name = NULL;
3087     guint length = 0, reported_length;
3088     vec_t cksum_vec[4];
3089     guint32 phdr[2];
3090     guint16 cksum, computed_cksum;
3091     int offset;
3092     tvbuff_t *next_tvb;
3093     guint8 icmp6_type, icmp6_code;
3094     icmp_transaction_t *trans = NULL;
3095
3096     col_set_str(pinfo->cinfo, COL_PROTOCOL, "ICMPv6");
3097     col_clear(pinfo->cinfo, COL_INFO);
3098
3099     offset = 0;
3100
3101     if (tree) {
3102         ti = proto_tree_add_item(tree, proto_icmpv6, tvb, offset, -1, ENC_BIG_ENDIAN);
3103         icmp6_tree = proto_item_add_subtree(ti, ett_icmpv6);
3104
3105         /* Type */
3106         proto_tree_add_item(icmp6_tree, hf_icmpv6_type, tvb, offset, 1, ENC_BIG_ENDIAN);
3107     }
3108     icmp6_type = tvb_get_guint8(tvb, offset);
3109     offset += 1;
3110
3111     col_add_str(pinfo->cinfo, COL_INFO, val_to_str(icmp6_type, icmpv6_type_val, "Unknown (%d)"));
3112
3113     if (tree)
3114         code_item = proto_tree_add_item(icmp6_tree, hf_icmpv6_code, tvb, offset, 1, ENC_BIG_ENDIAN);
3115
3116     icmp6_code = tvb_get_guint8(tvb, offset);
3117     offset += 1;
3118
3119     switch (icmp6_type) {
3120         case ICMP6_DST_UNREACH:
3121             code_name = val_to_str(icmp6_code, icmpv6_unreach_code_val, "Unknown");
3122             break;
3123         case ICMP6_TIME_EXCEEDED:
3124             code_name = val_to_str(icmp6_code, icmpv6_timeex_code_val, "Unknown (%d)");
3125             break;
3126         case ICMP6_PARAM_PROB:
3127             code_name = val_to_str(icmp6_code, icmpv6_paramprob_code_val, "Unknown (%d)");
3128             break;
3129         case ICMP6_ROUTER_RENUMBERING:
3130             code_name = val_to_str(icmp6_code, icmpv6_rr_code_val, "Unknown (%d)");
3131             break;
3132         case ICMP6_NI_QUERY:
3133             code_name = val_to_str(icmp6_code, ni_query_code_val, "Unknown (%d)");
3134             break;
3135         case ICMP6_NI_REPLY:
3136             code_name = val_to_str(icmp6_code, ni_reply_code_val, "Unknown (%d)");
3137             break;
3138         case ICMP6_RPL_CONTROL:
3139             code_name = val_to_str(icmp6_code, rpl_code_val, "Unknown (%d)");
3140             break;
3141     }
3142
3143     if (code_name)
3144         col_append_fstr(pinfo->cinfo, COL_INFO, " (%s)", code_name);
3145
3146     /* RFC 4380
3147      * 2.7.   Teredo UDP Port
3148      * 5.2.9. Direct IPv6 Connectivity Test  */
3149     if (pinfo->destport == 3544 && icmp6_type == ICMP6_ECHO_REQUEST) {
3150         col_set_str(pinfo->cinfo, COL_PROTOCOL, "Teredo");
3151         col_set_str(pinfo->cinfo, COL_INFO, "Direct IPv6 Connectivity Test");
3152     }
3153
3154     if (tree) {
3155         if (code_name)
3156             proto_item_append_text(code_item, " (%s)", code_name);
3157         checksum_item = proto_tree_add_item(icmp6_tree, hf_icmpv6_checksum, tvb, offset, 2, ENC_BIG_ENDIAN);
3158     }
3159
3160     cksum = tvb_get_ntohs(tvb, offset);
3161
3162     if (tree) {
3163         length = tvb_length(tvb);
3164         reported_length = tvb_reported_length(tvb);
3165         if (!pinfo->fragmented && length >= reported_length) {
3166             /* The packet isn't part of a fragmented datagram and isn't
3167                truncated, so we can checksum it. */
3168
3169             /* Set up the fields of the pseudo-header. */
3170             cksum_vec[0].ptr = pinfo->src.data;
3171             cksum_vec[0].len = pinfo->src.len;
3172             cksum_vec[1].ptr = pinfo->dst.data;
3173             cksum_vec[1].len = pinfo->dst.len;
3174             cksum_vec[2].ptr = (const guint8 *)&phdr;
3175             phdr[0] = g_htonl(tvb_reported_length(tvb));
3176             phdr[1] = g_htonl(IP_PROTO_ICMPV6);
3177             cksum_vec[2].len = 8;
3178             cksum_vec[3].len = tvb_reported_length(tvb);
3179             cksum_vec[3].ptr = tvb_get_ptr(tvb, 0, cksum_vec[3].len);
3180             computed_cksum = in_cksum(cksum_vec, 4);
3181
3182             if (computed_cksum == 0) {
3183                 proto_item_append_text(checksum_item, " [correct]");
3184             } else {
3185                 hidden_item = proto_tree_add_boolean(icmp6_tree, hf_icmpv6_checksum_bad, tvb, offset, 2, TRUE);
3186
3187                 PROTO_ITEM_SET_GENERATED(hidden_item);
3188                 proto_item_append_text(checksum_item, " [incorrect, should be 0x%04x]", in_cksum_shouldbe(cksum, computed_cksum));
3189                 expert_add_info_format(pinfo, checksum_item, PI_CHECKSUM, PI_WARN,
3190                                        "ICMPv6 Checksum Incorrect, should be 0x%04x", in_cksum_shouldbe(cksum, computed_cksum));
3191             }
3192         }
3193     }
3194     offset += 2;
3195
3196     if (icmp6_type == ICMP6_ECHO_REQUEST || icmp6_type == ICMP6_ECHO_REPLY) {
3197         guint16 identifier, sequence;
3198
3199         /* Identifier */
3200         if (tree)
3201             proto_tree_add_item(icmp6_tree, hf_icmpv6_echo_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
3202         identifier = tvb_get_ntohs(tvb, offset);
3203         offset += 2;
3204
3205         /* Sequence Number */
3206         if (tree)
3207             proto_tree_add_item(icmp6_tree, hf_icmpv6_echo_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN);
3208         sequence = tvb_get_ntohs(tvb, offset);
3209         offset += 2;
3210
3211         col_append_fstr(pinfo->cinfo, COL_INFO, " id=0x%04x, seq=%u", identifier, sequence);
3212
3213         if (pinfo->destport == 3544 && icmp6_type == ICMP6_ECHO_REQUEST) {
3214             /* RFC 4380
3215              * 2.7.   Teredo UDP Port
3216              * 5.2.9. Direct IPv6 Connectivity Test
3217              *
3218              * TODO: Clarify the nonce:  The RFC states, "(It is recommended to
3219              * use a random number [the nonce] at least 64 bits long.)"
3220              *
3221              * Shouldn't the nonce be at least 8 then?  Why not just use (-1),
3222              * as it could really be any length, couldn't it?
3223              */
3224             if (tree)
3225                 proto_tree_add_item(icmp6_tree, hf_icmpv6_nonce, tvb, offset, 4, ENC_NA);
3226             offset += 4;
3227         } else {
3228             if (!pinfo->in_error_pkt) {
3229                 guint32 conv_key[2];
3230
3231                 conv_key[1] = (guint32)((identifier << 16) | sequence);
3232
3233                 if (icmp6_type == ICMP6_ECHO_REQUEST) {
3234                     conv_key[0] = (guint32)cksum;
3235                     trans = transaction_start(pinfo, icmp6_tree, conv_key);
3236                 } else { /* ICMP6_ECHO_REPLY */
3237                     guint16 tmp[2];
3238
3239                     tmp[0] = ~cksum;
3240                     tmp[1] = ~0x0100; /* The difference between echo request & reply */
3241                     cksum_vec[0].len = sizeof(tmp);
3242                     cksum_vec[0].ptr = (guint8 *)tmp;
3243                     conv_key[0] = in_cksum(cksum_vec, 1);
3244                     trans = transaction_end(pinfo, icmp6_tree, conv_key);
3245                 }
3246             }
3247             next_tvb = tvb_new_subset(tvb, offset, -1, -1);
3248             offset += call_dissector(data_handle, next_tvb, pinfo, icmp6_tree);
3249         }
3250     }
3251
3252     if (tree) {
3253         /* decode... */
3254         switch (icmp6_type) {
3255             case ICMP6_DST_UNREACH: /* Destination Unreachable (1) */
3256             case ICMP6_TIME_EXCEEDED: /* Time Exceeded (3) */
3257                 /* Reserved */
3258                 proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 4, ENC_NA);
3259                 offset += 4;
3260
3261                 offset = dissect_contained_icmpv6(tvb, offset, pinfo, icmp6_tree);
3262                 break;
3263             case ICMP6_PACKET_TOO_BIG: /* Packet Too Big (2) */
3264                 /* MTU */
3265                 proto_tree_add_item(icmp6_tree, hf_icmpv6_mtu, tvb, offset, 4, ENC_BIG_ENDIAN);
3266                 offset += 4;
3267
3268                 offset = dissect_contained_icmpv6(tvb, offset, pinfo, icmp6_tree);
3269                 break;
3270             case ICMP6_PARAM_PROB: /* Parameter Problem (4) */
3271                 /* MTU */
3272                 proto_tree_add_item(icmp6_tree, hf_icmpv6_pointer, tvb, offset, 4, ENC_BIG_ENDIAN);
3273                 offset += 4;
3274
3275                 offset = dissect_contained_icmpv6(tvb, offset, pinfo, icmp6_tree);
3276                 break;
3277             case ICMP6_ECHO_REQUEST:    /* Echo Request (128) */
3278             case ICMP6_ECHO_REPLY:      /* Echo Reply (129) */
3279                 /* Already handled above */
3280                 break;
3281             case ICMP6_MEMBERSHIP_QUERY: /* Multicast Listener Query (130) */
3282             case ICMP6_MEMBERSHIP_REPORT: /* Multicast Listener Report (131) */
3283             case ICMP6_MEMBERSHIP_REDUCTION: /* Multicast Listener Done (132) */
3284             {
3285                 /* It is MLDv2 packet ? (the min length for a MLDv2 packet is 28) */
3286                 if ((icmp6_type == ICMP6_MEMBERSHIP_QUERY) && (length >= MLDV2_PACKET_MINLEN)) {
3287                     guint32 mrc;
3288                     guint16 qqi, i, nb_sources;
3289
3290                     /* Maximum Response Code */
3291                     mrc = tvb_get_ntohs(tvb, offset);
3292                     if (mrc >= 32768){
3293                         mrc = ((mrc & 0x0fff) | 0x1000) << (((mrc & 0x7000) >> 12) + 3);
3294                     }
3295                     proto_tree_add_uint(icmp6_tree, hf_icmpv6_mld_mrc, tvb, offset, 2, mrc);
3296                     offset += 2;
3297
3298                     /* Reserved */
3299                     proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
3300                     offset += 2;
3301
3302                     /* Multicast Address */
3303                     proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_multicast_address, tvb, offset, 16, ENC_NA);
3304                     offset += 16;
3305
3306                     /* Flag */
3307                     ti_flag = proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
3308                     flag_tree = proto_item_add_subtree(ti_flag, ett_icmpv6_flag_mld);
3309                     proto_tree_add_item(flag_tree, hf_icmpv6_mld_flag_s, tvb, offset, 1, ENC_BIG_ENDIAN);
3310                     proto_tree_add_item(flag_tree, hf_icmpv6_mld_flag_qrv, tvb, offset, 1, ENC_BIG_ENDIAN);
3311                     proto_tree_add_item(flag_tree, hf_icmpv6_mld_flag_rsv, tvb, offset, 1, ENC_BIG_ENDIAN);
3312                     offset += 1;
3313
3314                     /* QQI */
3315                     qqi = tvb_get_guint8(tvb, offset);
3316                     if (qqi >= 128){
3317                         qqi = ((qqi & 0x0f) | 0x10) << (((qqi & 0x70) >> 4) + 3);
3318                     }
3319                     proto_tree_add_uint(icmp6_tree, hf_icmpv6_mld_qqi, tvb, offset, 1, qqi);
3320                     offset += 1;
3321
3322                     /* Number of Sources */
3323                     proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_nb_sources, tvb, offset, 2, ENC_BIG_ENDIAN);
3324                     nb_sources = tvb_get_ntohs(tvb, offset);
3325                     offset += 2;
3326
3327                     /* Source Address */
3328                     for (i=1; i <= nb_sources; i++){
3329                         proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_source_address, tvb, offset, 16, ENC_NA);
3330                         offset += 16;
3331                     }
3332
3333                 }else{ /* It is a MLDv1 Packet */
3334
3335                     proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_mrd, tvb, offset, 2, ENC_BIG_ENDIAN);
3336                     offset += 2;
3337
3338                     /* Reserved */
3339                     proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
3340                     offset += 2;
3341
3342                     /* Multicast Address */
3343                     proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_multicast_address, tvb, offset, 16, ENC_NA);
3344                     offset += 16;
3345                 }
3346                 break;
3347             }
3348             case ICMP6_ND_ROUTER_SOLICIT: /* Router Solicitation (133) */
3349             {
3350                 /* Reserved */
3351                 proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 4, ENC_NA);
3352                 offset += 4;
3353
3354                 /* Show options */
3355                 offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
3356                 break;
3357             }
3358             case ICMP6_ND_ROUTER_ADVERT: /* Router Advertisement (134) */
3359             {
3360
3361                 /* Current hop limit */
3362                 proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ra_cur_hop_limit, tvb, offset, 1, ENC_BIG_ENDIAN);
3363                 offset += 1;
3364
3365                 /* Flags */
3366                 ti_flag = proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ra_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
3367                 flag_tree = proto_item_add_subtree(ti_flag, ett_icmpv6_flag_ra);
3368
3369                 proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_m, tvb, offset, 1, ENC_BIG_ENDIAN);
3370                 proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_o, tvb, offset, 1, ENC_BIG_ENDIAN);
3371                 proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_h, tvb, offset, 1, ENC_BIG_ENDIAN);
3372                 proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_prf, tvb, offset, 1, ENC_BIG_ENDIAN);
3373                 proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_p, tvb, offset, 1, ENC_BIG_ENDIAN);
3374                 proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_rsv, tvb, offset, 1, ENC_BIG_ENDIAN);
3375                 offset += 1;
3376
3377                 /* Router lifetime */
3378                 proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ra_router_lifetime, tvb, offset, 2, ENC_BIG_ENDIAN);
3379                 offset += 2;
3380
3381                 /* Reachable time */
3382                 proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ra_reachable_time, tvb, offset, 4, ENC_BIG_ENDIAN);
3383                 offset += 4;
3384
3385                 /* Retrans timer */
3386                 proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ra_retrans_timer, tvb, offset, 4, ENC_BIG_ENDIAN);
3387                 offset += 4;
3388
3389                 /* Show options */
3390                 offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
3391                 break;
3392             }
3393             case ICMP6_ND_NEIGHBOR_SOLICIT: /* Neighbor Solicitation (135) */
3394             {
3395                 /* Reserved */
3396                 proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 4, ENC_NA);
3397                 offset += 4;
3398
3399                 /* Target Address */
3400                 proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ns_target_address, tvb, offset, 16, ENC_NA);
3401                 col_append_fstr(pinfo->cinfo, COL_INFO, " for %s", tvb_ip6_to_str(tvb, offset));
3402
3403                 offset += 16;
3404
3405                 /* Show options */
3406                 offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
3407                 break;
3408             }
3409             case ICMP6_ND_NEIGHBOR_ADVERT: /* Neighbor Advertisement (136) */
3410             {
3411                 guint32 na_flags;
3412                 emem_strbuf_t *flags_strbuf = ep_strbuf_new_label("");
3413
3414                 /* Flags */
3415                 ti_flag = proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_na_flag, tvb, offset, 4, ENC_BIG_ENDIAN);
3416                 flag_tree = proto_item_add_subtree(ti_flag, ett_icmpv6_flag_na);
3417                 proto_tree_add_item(flag_tree, hf_icmpv6_nd_na_flag_r, tvb, offset, 4, ENC_BIG_ENDIAN);
3418                 proto_tree_add_item(flag_tree, hf_icmpv6_nd_na_flag_s, tvb, offset, 4, ENC_BIG_ENDIAN);
3419                 proto_tree_add_item(flag_tree, hf_icmpv6_nd_na_flag_o, tvb, offset, 4, ENC_BIG_ENDIAN);
3420                 proto_tree_add_item(flag_tree, hf_icmpv6_nd_na_flag_rsv, tvb, offset, 4, ENC_BIG_ENDIAN);
3421                 na_flags = tvb_get_ntohl(tvb, offset);
3422                 offset += 4;
3423
3424                 /* Target Address */
3425                 proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_na_target_address, tvb, offset, 16, ENC_NA);
3426
3427
3428                 if (na_flags & ND_NA_FLAG_R) {
3429                     ep_strbuf_append(flags_strbuf, "rtr, ");
3430                 }
3431                 if (na_flags & ND_NA_FLAG_S) {
3432                     ep_strbuf_append(flags_strbuf, "sol, ");
3433                 }
3434                 if (na_flags & ND_NA_FLAG_O) {
3435                     ep_strbuf_append(flags_strbuf, "ovr, ");
3436                 }
3437                 if (flags_strbuf->len > 2) {
3438                     ep_strbuf_truncate(flags_strbuf, flags_strbuf->len - 2);
3439                 } else {
3440                     ep_strbuf_printf(flags_strbuf, "none");
3441                 }
3442
3443                 col_append_fstr(pinfo->cinfo, COL_INFO, " %s (%s)", tvb_ip6_to_str(tvb, offset), flags_strbuf->str);
3444                 offset += 16;
3445
3446                 /* Show options */
3447                 offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
3448                 break;
3449             }
3450             case ICMP6_ND_REDIRECT: /* Redirect Message (137) */
3451             {
3452                 /* Reserved */
3453                 proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 4, ENC_NA);
3454                 offset += 4;
3455
3456                 /* Target Address */
3457                 proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_rd_target_address, tvb, offset, 16, ENC_NA);
3458                 offset += 16;
3459
3460                 /* Destination Address */
3461                 proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_rd_destination_address, tvb, offset, 16, ENC_NA);
3462                 offset += 16;
3463
3464                 /* Show options */
3465                 offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
3466                 break;
3467             }
3468             case ICMP6_ROUTER_RENUMBERING: /* Router Renumbering (138) */
3469             {
3470                 offset = dissect_rrenum(tvb, offset, pinfo, icmp6_tree, icmp6_type, icmp6_code);
3471                 break;
3472             }
3473             case ICMP6_NI_QUERY: /* ICMP Node Information Query (139) */
3474             case ICMP6_NI_REPLY: /* ICMP Node Information Response (140) */
3475             {
3476                 offset = dissect_nodeinfo(tvb, offset, pinfo, icmp6_tree, icmp6_type, icmp6_code);
3477                 break;
3478             }
3479             case ICMP6_IND_SOLICIT: /* Inverse Neighbor Discovery Solicitation Message (141) */
3480             case ICMP6_IND_ADVERT: /* Inverse Neighbor Discovery Advertisement Message (142) */
3481             {
3482                 /* Reserved */
3483                 proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 4, ENC_NA);
3484                 offset += 4;
3485
3486                 /* Show options */
3487                 offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
3488                 break;
3489             }
3490             case ICMP6_MLDV2_REPORT: /* Version 2 Multicast Listener Report (143) */
3491             {
3492                 offset = dissect_mldrv2( tvb, offset, pinfo, icmp6_tree );
3493                 break;
3494             }
3495             case ICMP6_MIP6_DHAAD_REQUEST: /* Home Agent Address Discovery Request Message (144) */
3496             {
3497                 /* Identifier */
3498                 proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
3499                 offset += 2;
3500
3501                 /* Reserved */
3502                 proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
3503                 offset += 2;
3504
3505                 break;
3506             }
3507             case ICMP6_MIP6_DHAAD_REPLY: /* Home Agent Address Discovery Reply Message (145) */
3508             {
3509                 /* Identifier */
3510                 proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
3511                 offset += 2;
3512
3513                 /* Reserved */
3514                 proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
3515                 offset += 2;
3516
3517                 /* Show all Home Agent Addresses */
3518                 while((int)length > offset)
3519                 {
3520                     proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_home_agent_address, tvb, offset, 16, ENC_NA);
3521                     offset += 16;
3522                 }
3523                 break;
3524             }
3525             case ICMP6_MIP6_MPS: /* Mobile Prefix Solicitation (146) */
3526             {
3527                 /* Identifier */
3528                 proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
3529                 offset += 2;
3530
3531                 /* Reserved */
3532                 proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
3533                 offset += 2;
3534                 break;
3535             }
3536             case ICMP6_MIP6_MPA: /* Mobile Prefix Advertisement (147) */
3537             {
3538                 /* Identifier */
3539                 proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
3540                 offset += 2;
3541
3542                 /* Flag */
3543                 ti_flag = proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_flag, tvb,offset, 6, ENC_NA);
3544                 flag_tree = proto_item_add_subtree(ti_flag, ett_icmpv6_flag_mip6);
3545                 proto_tree_add_item(flag_tree, hf_icmpv6_mip6_flag_m, tvb, offset, 2, ENC_BIG_ENDIAN);
3546                 proto_tree_add_item(flag_tree, hf_icmpv6_mip6_flag_o, tvb, offset, 2, ENC_BIG_ENDIAN);
3547                 proto_tree_add_item(flag_tree, hf_icmpv6_mip6_flag_rsv, tvb, offset, 2, ENC_BIG_ENDIAN);
3548                 offset += 2;
3549
3550                 /* Show options */
3551                 offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
3552                 break;
3553             }
3554             case ICMP6_CERT_PATH_SOL: /* Certification Path Solicitation Message (148) */
3555             {
3556
3557                 /* Identifier */
3558                 proto_tree_add_item(icmp6_tree, hf_icmpv6_send_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
3559                 offset += 2;
3560
3561                 /* Component  */
3562                 proto_tree_add_item(icmp6_tree, hf_icmpv6_send_component, tvb, offset, 2, ENC_BIG_ENDIAN);
3563                 offset += 2;
3564
3565                 /* Show options */
3566                 offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
3567                 break;
3568             }
3569             case ICMP6_CERT_PATH_AD: /* Certification Path Advertisement Message (149) */
3570             {
3571
3572                 /* Identifier */
3573                 proto_tree_add_item(icmp6_tree, hf_icmpv6_send_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
3574                 offset += 2;
3575
3576                 /* All Components */
3577                 proto_tree_add_item(icmp6_tree, hf_icmpv6_send_all_components, tvb, offset, 2, ENC_BIG_ENDIAN);
3578                 offset += 2;
3579
3580                 /* Component  */
3581                 proto_tree_add_item(icmp6_tree, hf_icmpv6_send_component, tvb, offset, 2, ENC_BIG_ENDIAN);
3582                 offset += 2;
3583
3584                 /* Reserved */
3585                 proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
3586                 offset += 2;
3587
3588                 /* Show options */
3589                 offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
3590                 break;
3591             }
3592             case ICMP6_EXPERIMENTAL_MOBILITY: /* ICMP messages utilized by experimental mobility protocols (150) */
3593             case ICMP6_FMIPV6_MESSAGES:  /* FMIPv6 Messages (154)*/
3594             {
3595                 guint8 subtype;
3596
3597                 /* Subtype */
3598                 proto_tree_add_item(icmp6_tree, hf_icmpv6_fmip6_subtype, tvb, offset, 1, ENC_BIG_ENDIAN);
3599                 subtype = tvb_get_guint8(tvb, offset);
3600                 col_append_fstr(pinfo->cinfo, COL_INFO, " (%s)", val_to_str(subtype, fmip6_subtype_val, "Unknown (%d)"));
3601                 offset += 1;
3602
3603                 switch(subtype){
3604                     case FMIP6_SUBTYPE_RTSOLPR:
3605                     {
3606                         /* Reserved */
3607                         proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 1, ENC_NA);
3608                     }
3609                     break;
3610                     case FMIP6_SUBTYPE_PRRTADV:
3611                     {
3612                         proto_item_append_text(code_item, " (%s)", val_to_str(icmp6_code, fmip6_prrtadv_code_val, "Unknown %d") );
3613                         /* Reserved */
3614                         proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 1, ENC_NA);
3615                     }
3616                     break;
3617                     case FMIP6_SUBTYPE_HI:
3618                     {
3619                         proto_item_append_text(code_item, " (%s)", val_to_str(icmp6_code, fmip6_hi_code_val, "Unknown %d") );
3620                         /* Flags */
3621                         ti_flag = proto_tree_add_item(icmp6_tree, hf_icmpv6_fmip6_hi_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
3622                         flag_tree = proto_item_add_subtree(ti_flag, ett_icmpv6_flag_fmip6);
3623
3624                         proto_tree_add_item(flag_tree, hf_icmpv6_fmip6_hi_flag_s, tvb, offset, 1, ENC_BIG_ENDIAN);
3625                         proto_tree_add_item(flag_tree, hf_icmpv6_fmip6_hi_flag_u, tvb, offset, 1, ENC_BIG_ENDIAN);
3626                         proto_tree_add_item(flag_tree, hf_icmpv6_fmip6_hi_flag_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
3627                     }
3628                     break;
3629                     case FMIP6_SUBTYPE_HACK:
3630                     {
3631                         proto_item_append_text(code_item, " (%s)", val_to_str(icmp6_code, fmip6_hack_code_val, "Unknown %d") );
3632                         /* Reserved */
3633                         proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 1, ENC_NA);
3634                     }
3635                     break;
3636                 }
3637                 offset +=1;
3638
3639                 /* Identifier */
3640                 proto_tree_add_item(icmp6_tree, hf_icmpv6_fmip6_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
3641                 offset += 2;
3642
3643                 /* Show options */
3644                 offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
3645                 break;
3646             }
3647             case ICMP6_MCAST_ROUTER_ADVERT: /* Multicast Router Advertisement (151) */
3648             {
3649                 /* Query Interval */
3650                 proto_tree_add_item(icmp6_tree, hf_icmpv6_mcast_ra_query_interval, tvb, offset, 2, ENC_BIG_ENDIAN);
3651                 offset += 2;
3652
3653                 /* Robustness Variable */
3654                 proto_tree_add_item(icmp6_tree, hf_icmpv6_mcast_ra_robustness_variable, tvb, offset, 2, ENC_BIG_ENDIAN);
3655                 offset += 2;
3656             }
3657             case ICMP6_MCAST_ROUTER_SOLICIT: /* Multicast Router Solicitation (152) */
3658             case ICMP6_MCAST_ROUTER_TERM: /* Multicast Router Termination (153) */
3659             {
3660                 /* No Action... */
3661                 break;
3662             }
3663             case ICMP6_RPL_CONTROL: /* RPL Control (155) */
3664             {
3665                 /* RPL: draft-ietf-roll-rpl-19.txt: Routing over Low-Power and Lossy Networks. */
3666                 offset = dissect_rpl_control(tvb, offset, pinfo, icmp6_tree, icmp6_type, icmp6_code);
3667                 break;
3668             }
3669
3670             case ICMP6_6LOWPANND_DAR:
3671             case ICMP6_6LOWPANND_DAC:
3672             {
3673                 /* Status */
3674                 proto_tree_add_item(icmp6_tree, hf_icmpv6_da_status, tvb, offset, 1, ENC_BIG_ENDIAN);
3675                 offset += 1;
3676
3677                 /* Reserved */
3678                 proto_tree_add_item(icmp6_tree, hf_icmpv6_da_rsv, tvb, offset, 1, ENC_BIG_ENDIAN);
3679                 offset += 1;
3680
3681                 /* Lifetime */
3682                 proto_tree_add_item(icmp6_tree, hf_icmpv6_da_lifetime, tvb, offset, 2, ENC_BIG_ENDIAN);
3683                 offset += 2;
3684
3685                 /* EUI-64 */
3686                 proto_tree_add_item(icmp6_tree, hf_icmpv6_da_eui64, tvb, offset, 8, ENC_BIG_ENDIAN);
3687                 offset += 8;
3688
3689                 /* Address */
3690                 proto_tree_add_item(icmp6_tree, hf_icmpv6_da_raddr, tvb, offset, 16, ENC_NA);
3691                 offset += 16;
3692                 break;
3693             }
3694             default:
3695                 expert_add_info_format(pinfo, ti, PI_UNDECODED, PI_NOTE,
3696                                        "Dissector for ICMPv6 Type (%d)"
3697                                        " code not implemented, Contact Wireshark"
3698                                        " developers if you want this supported", icmp6_type);
3699                 proto_tree_add_item(icmp6_tree, hf_icmpv6_data, tvb, offset, -1, ENC_NA);
3700                 break;
3701         } /* switch (icmp6_type) */
3702     } /* if (tree) */
3703
3704     if (trans)
3705         tap_queue_packet(icmpv6_tap, pinfo, trans);
3706
3707     return offset;
3708 }
3709
3710 void
3711 proto_register_icmpv6(void)
3712 {
3713     static hf_register_info hf[] = {
3714         { &hf_icmpv6_type,
3715           { "Type", "icmpv6.type", FT_UINT8, BASE_DEC, VALS(icmpv6_type_val), 0x0,
3716             "Indicates the type of the message", HFILL }},
3717         { &hf_icmpv6_code,
3718           { "Code", "icmpv6.code", FT_UINT8, BASE_DEC, NULL, 0x0,
3719             "Depends on the message type.  It is used to create an additional level of message granularity", HFILL }},
3720         { &hf_icmpv6_checksum,
3721           { "Checksum", "icmpv6.checksum", FT_UINT16, BASE_HEX, NULL, 0x0,
3722             "Used to detect data corruption in the ICMPv6 message and parts of the IPv6 header", HFILL }},
3723         { &hf_icmpv6_checksum_bad,
3724           { "Bad Checksum", "icmpv6.checksum_bad", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
3725             NULL, HFILL }},
3726         { &hf_icmpv6_reserved,
3727           { "Reserved", "icmpv6.reserved", FT_BYTES, BASE_NONE, NULL, 0x0,
3728             "Must be Zero", HFILL }},
3729         { &hf_icmpv6_data,
3730           { "Data", "icmpv6.data", FT_BYTES, BASE_NONE, NULL, 0x0,
3731             NULL, HFILL }},
3732         { &hf_icmpv6_unknown_data,
3733           { "Unknown Data", "icmpv6.unknown_data", FT_BYTES, BASE_NONE, NULL, 0x0,
3734             "Not interpreted Data", HFILL }},
3735         { &hf_icmpv6_mtu,
3736           { "MTU", "icmpv6.mtu", FT_UINT32, BASE_DEC, NULL, 0x0,
3737             "The Maximum Transmission Unit of the next-hop link", HFILL }},
3738         { &hf_icmpv6_pointer,
3739           { "Pointer", "icmpv6.pointer", FT_UINT32, BASE_DEC, NULL, 0x0,
3740             "Identifies the octet offset within the invoking packet where the error was detected", HFILL }},
3741         { &hf_icmpv6_echo_identifier,
3742           { "Identifier", "icmpv6.echo.identifier", FT_UINT16, BASE_HEX, NULL, 0x0,
3743             "An identifier to aid in matching with Request and Reply", HFILL }},
3744         { &hf_icmpv6_echo_sequence_number,
3745           { "Sequence", "icmpv6.echo.sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0,
3746             "A sequence number to aid in matching Echo Replies to this Echo Request", HFILL }},
3747         { &hf_icmpv6_nonce,
3748           { "Nonce", "icmpv6.nonce", FT_BYTES, BASE_NONE, NULL, 0x0,
3749             NULL, HFILL }},
3750         /* RFC 2461/4861 : Neighbor Discovery for IP version 6 (IPv6) */
3751         { &hf_icmpv6_nd_ra_cur_hop_limit,
3752           { "Cur hop limit", "icmpv6.nd.ra.cur_hop_limit", FT_UINT8, BASE_DEC, NULL, 0x0,
3753             "The default value that should be placed in the Hop Count field of the IP header for outgoing IP packets", HFILL }},
3754         { &hf_icmpv6_nd_ra_flag,
3755           { "Flags", "icmpv6.nd.ra.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
3756             NULL, HFILL }},
3757         { &hf_icmpv6_nd_ra_flag_m,
3758           { "Managed address configuration", "icmpv6.nd.ra.flag.m", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ND_RA_FLAG_M,
3759             "When set, it indicates that addresses are available via DHCPv6", HFILL }},
3760         { &hf_icmpv6_nd_ra_flag_o,
3761           { "Other configuration", "icmpv6.nd.ra.flag.o", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ND_RA_FLAG_O,
3762             "When set, it indicates that other configuration information is available via DHCPv6", HFILL }},
3763         { &hf_icmpv6_nd_ra_flag_h,
3764           { "Home Agent", "icmpv6.nd.ra.flag.h", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ND_RA_FLAG_H,
3765             "When set, it indicate that the router sending this Router Advertisement is also functioning as a Mobile IPv6 home agent on this link", HFILL }},
3766         { &hf_icmpv6_nd_ra_flag_prf,
3767           { "Prf (Default Router Preference)", "icmpv6.nd.ra.flag.prf", FT_UINT8, BASE_DEC, VALS(nd_flag_router_pref), ND_RA_FLAG_PRF,
3768             "Indicates whether to prefer this router over other default routers", HFILL }},
3769         { &hf_icmpv6_nd_ra_flag_p,
3770           { "Proxy", "icmpv6.nd.ra.flag.p", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ND_RA_FLAG_P,
3771            NULL, HFILL }},
3772         { &hf_icmpv6_nd_ra_flag_rsv,
3773           { "Reserved", "icmpv6.nd.ra.flag.rsv", FT_UINT8, BASE_DEC, NULL, ND_RA_FLAG_RSV,
3774             "Must be Zero", HFILL }},
3775         { &hf_icmpv6_nd_ra_router_lifetime,
3776           { "Router lifetime (s)", "icmpv6.nd.ra.router_lifetime", FT_UINT16, BASE_DEC, NULL, 0x0,
3777             "The lifetime associated with the default router", HFILL }},
3778         { &hf_icmpv6_nd_ra_reachable_time,
3779           { "Reachable time (ms)", "icmpv6.nd.ra.reachable_time", FT_UINT32, BASE_DEC, NULL, 0x0,
3780             "The time that a node assumes a neighbor is reachable after having received a reachability confirmation", HFILL }},
3781         { &hf_icmpv6_nd_ra_retrans_timer,
3782           { "Retrans timer (ms)", "icmpv6.nd.ra.retrans_timer", FT_UINT32, BASE_DEC, NULL, 0x0,
3783             "The time between retransmitted Neighbor Solicitation messages", HFILL }},
3784         { &hf_icmpv6_nd_ns_target_address,
3785           { "Target Address", "icmpv6.nd.ns.target_address", FT_IPv6, BASE_NONE, NULL, 0x0,
3786             "The IP address of the target of the solicitation", HFILL }},
3787         { &hf_icmpv6_nd_na_flag,
3788           { "Flags", "icmpv6.nd.na.flag", FT_UINT32, BASE_HEX, NULL, 0x0,
3789             NULL, HFILL }},
3790         { &hf_icmpv6_nd_na_flag_r,
3791           { "Router", "icmpv6.nd.na.flag.r", FT_BOOLEAN, 32, TFS(&tfs_set_notset), ND_NA_FLAG_R,
3792             "When set, it indicates that the sender is a router", HFILL }},
3793         { &hf_icmpv6_nd_na_flag_s,
3794           { "Solicited", "icmpv6.nd.na.flag.s", FT_BOOLEAN, 32, TFS(&tfs_set_notset), ND_NA_FLAG_S,
3795             "When set, it indicates that the advertisement was sent in response to a Neighbor Solicitation from the Destination address", HFILL }},
3796         { &hf_icmpv6_nd_na_flag_o,
3797           { "Override", "icmpv6.nd.na.flag.o", FT_BOOLEAN, 32, TFS(&tfs_set_notset), ND_NA_FLAG_O,
3798             "When set, it indicates that the advertisement should override an existing cache entry and update the cached link-layer address", HFILL }},
3799         { &hf_icmpv6_nd_na_flag_rsv,
3800           { "Reserved", "icmpv6.nd.na.flag.rsv", FT_UINT32, BASE_DEC, NULL, ND_NA_FLAG_RSV,
3801             "Must be Zero", HFILL }},
3802         { &hf_icmpv6_nd_na_target_address,
3803           { "Target Address", "icmpv6.nd.na.target_address", FT_IPv6, BASE_NONE, NULL, 0x0,
3804             "the Target Address field in the Neighbor Solicitation message that prompted this advertisement", HFILL }},
3805         { &hf_icmpv6_nd_rd_target_address,
3806           { "Target Address", "icmpv6.nd.rd.target_address", FT_IPv6, BASE_NONE, NULL, 0x0,
3807             "An IP address that is a better first hop to use for the ICMP Destination Address", HFILL }},
3808         { &hf_icmpv6_nd_rd_destination_address,
3809           { "Destination Address", "icmpv6.rd.na.destination_address", FT_IPv6, BASE_NONE, NULL, 0x0,
3810             "The IP address of the destination that is redirected to the target", HFILL }},
3811         { &hf_icmpv6_opt,
3812           { "ICMPv6 Option", "icmpv6.opt", FT_NONE, BASE_NONE, NULL, 0x0,
3813             "Option", HFILL }},
3814         { &hf_icmpv6_opt_type,
3815           { "Type", "icmpv6.opt.type", FT_UINT8, BASE_DEC, VALS(option_vals), 0x0,
3816             "Options type", HFILL }},
3817         { &hf_icmpv6_opt_length,
3818           { "Length", "icmpv6.opt.length", FT_UINT8, BASE_DEC, NULL, 0x0,
3819             "The length (in units of 8 bytes) of the option (including the Type and Length fields)", HFILL }},
3820         { &hf_icmpv6_opt_reserved,
3821           { "Reserved", "icmpv6.opt.reserved", FT_NONE, BASE_NONE, NULL, 0x0,
3822             "Reserved (Must be 0)", HFILL }},
3823         { &hf_icmpv6_opt_padding,
3824           { "Padding", "icmpv6.opt.padding", FT_NONE, BASE_NONE, NULL, 0x0,
3825             "Padding (Must be 0)", HFILL }},
3826         { &hf_icmpv6_opt_linkaddr,
3827           { "Link-layer address", "icmpv6.opt.linkaddr", FT_BYTES, BASE_NONE, NULL, 0x0,
3828             NULL, HFILL }},
3829        { &hf_icmpv6_opt_src_linkaddr,
3830           { "Source Link-layer address", "icmpv6.opt.src_linkaddr", FT_BYTES, BASE_NONE, NULL, 0x0,
3831             NULL, HFILL }},
3832        { &hf_icmpv6_opt_target_linkaddr,
3833           { "Target Link-layer address", "icmpv6.opt.target_linkaddr", FT_BYTES, BASE_NONE, NULL, 0x0,
3834             NULL, HFILL }},
3835         { &hf_icmpv6_opt_linkaddr_mac,
3836           { "Link-layer address", "icmpv6.opt.linkaddr", FT_ETHER, BASE_NONE, NULL, 0x0,
3837             NULL, HFILL }},
3838        { &hf_icmpv6_opt_src_linkaddr_mac,
3839           { "Source Link-layer address", "icmpv6.opt.src_linkaddr", FT_ETHER, BASE_NONE, NULL, 0x0,
3840             NULL, HFILL }},
3841        { &hf_icmpv6_opt_target_linkaddr_mac,
3842           { "Target Link-layer address", "icmpv6.opt.target_linkaddr", FT_ETHER, BASE_NONE, NULL, 0x0,
3843             NULL, HFILL }},
3844         { &hf_icmpv6_opt_linkaddr_eui64,
3845           { "Link-layer address", "icmpv6.opt.linkaddr", FT_EUI64, BASE_NONE, NULL, 0x0,
3846             NULL, HFILL }},
3847        { &hf_icmpv6_opt_src_linkaddr_eui64,
3848           { "Source Link-layer address", "icmpv6.opt.src_linkaddr", FT_EUI64, BASE_NONE, NULL, 0x0,
3849             NULL, HFILL }},
3850        { &hf_icmpv6_opt_target_linkaddr_eui64,
3851           { "Target Link-layer address", "icmpv6.opt.target_linkaddr", FT_EUI64, BASE_NONE, NULL, 0x0,
3852             NULL, HFILL }},
3853         { &hf_icmpv6_opt_prefix_len,
3854           { "Prefix Length", "icmpv6.opt.prefix.length", FT_UINT8, BASE_DEC, NULL, 0x0,
3855             "The number of leading bits in the Prefix that are valid", HFILL }},
3856         { &hf_icmpv6_opt_prefix_flag,
3857           { "Flag", "icmpv6.opt.prefix.flag", FT_UINT8, BASE_HEX, NULL, 0x00,
3858             NULL, HFILL }},
3859         { &hf_icmpv6_opt_prefix_flag_l,
3860           { "On-link flag(L)", "icmpv6.opt.prefix.flag.l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80,
3861             "When set, indicates that this prefix can be used for on-link determination", HFILL }},
3862         { &hf_icmpv6_opt_prefix_flag_a,
3863           { "Autonomous address-configuration flag(A)", "icmpv6.opt.prefix.flag.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40,
3864             "When set indicates that this prefix can be used for stateless address configuration", HFILL }},
3865         { &hf_icmpv6_opt_prefix_flag_r,
3866           { "Router address flag(R)", "icmpv6.opt.prefix.flag.r", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x20,
3867             "When set indicates that the Prefix field contains a complete IP address assigned to the sending router", HFILL }},
3868         { &hf_icmpv6_opt_prefix_flag_reserved,
3869           { "Reserved", "icmpv6.opt.prefix.flag.reserved", FT_UINT8, BASE_DEC, NULL, 0x1f,
3870             NULL, HFILL }},
3871         { &hf_icmpv6_opt_prefix_valid_lifetime,
3872           { "Valid Lifetime", "icmpv6.opt.prefix.valid_lifetime", FT_UINT32, BASE_DEC, NULL, 0x00,
3873             "The length of time in seconds that the prefix is valid for the purpose of on-link determination", HFILL }},
3874         { &hf_icmpv6_opt_prefix_preferred_lifetime,
3875           { "Preferred Lifetime", "icmpv6.opt.prefix.preferred_lifetime", FT_UINT32, BASE_DEC, NULL, 0x00,
3876             "The length of time in seconds that addresses generated from the prefix via stateless address autoconfiguration remain preferred", HFILL }},
3877         { &hf_icmpv6_opt_prefix,
3878           { "Prefix", "icmpv6.opt.prefix", FT_IPv6, BASE_NONE, NULL, 0x00,
3879             "An IP address or a prefix of an IP address", HFILL }},
3880         { &hf_icmpv6_opt_cga_pad_len,
3881           { "Pad Length", "icmpv6.opt.cga.pad_length", FT_UINT8, BASE_DEC, NULL, 0x0,
3882             "Pad Length (in bytes)", HFILL }},
3883         { &hf_icmpv6_opt_cga,
3884           { "CGA", "icmpv6.opt.cga", FT_BYTES, BASE_NONE, NULL, 0x0,
3885             NULL, HFILL }},
3886         { &hf_icmpv6_opt_cga_modifier,
3887           { "Modifier", "icmpv6.opt.cga.modifier", FT_BYTES, BASE_NONE, NULL, 0x0,
3888             NULL, HFILL }},
3889         { &hf_icmpv6_opt_cga_subnet_prefix,
3890           { "Subnet Prefix", "icmpv6.opt.cga.subnet_prefix", FT_BYTES, BASE_NONE, NULL, 0x0,
3891             NULL, HFILL }},
3892         { &hf_icmpv6_opt_cga_count,
3893           { "Count", "icmpv6.opt.cga.count", FT_BYTES, BASE_NONE, NULL, 0x0,
3894             NULL, HFILL }},
3895         { &hf_icmpv6_opt_cga_ext_type,
3896           { "Ext Type", "icmpv6.opt.cga.ext_type", FT_UINT16, BASE_DEC, NULL, 0x0,
3897             NULL, HFILL }},
3898         { &hf_icmpv6_opt_cga_ext_length,
3899           { "Ext Length", "icmpv6.opt.cga.ext_length", FT_UINT16, BASE_DEC, NULL, 0x0,
3900             NULL, HFILL }},
3901         { &hf_icmpv6_opt_cga_ext_data,
3902           { "Ext Data", "icmpv6.opt.cga.ext_length", FT_BYTES, BASE_NONE, NULL, 0x0,
3903             NULL, HFILL }},
3904         { &hf_icmpv6_opt_rsa_key_hash,
3905           { "Key Hash", "icmpv6.opt.rsa.key_hash", FT_BYTES, BASE_NONE, NULL, 0x0,
3906             NULL, HFILL }},
3907         { &hf_icmpv6_opt_digital_signature_padding,
3908           { "Digital Signature and Padding", "icmpv6.opt.digital_signature_padding", FT_NONE, BASE_NONE, NULL, 0x0,
3909             "TO DO FIX ME !!", HFILL }},
3910         { &hf_icmpv6_opt_ps_key_hash,
3911           { "Key Hash", "icmpv6.opt.ps.key_hash", FT_BYTES, BASE_NONE, NULL, 0x0,
3912             NULL, HFILL }},
3913         { &hf_icmpv6_opt_timestamp,
3914           { "Timestamp", "icmpv6.opt.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0,
3915             "The value indicates the number of seconds since January 1, 1970, 00:00 UTC", HFILL }},
3916         { &hf_icmpv6_opt_nonce,
3917           { "Nonce", "icmpv6.opt.nonce", FT_BYTES, BASE_NONE, NULL, 0x0,
3918             "A field containing a random number selected by the sender of the solicitation message", HFILL }},
3919         { &hf_icmpv6_opt_certificate_padding,
3920           { "Certificat and Padding", "icmpv6.opt.certificate_padding", FT_NONE, BASE_NONE, NULL, 0x0,
3921             NULL, HFILL }},
3922         { &hf_icmpv6_opt_ipa_option_code,
3923           { "Option-code", "icmpv6.opt.ipa.option_code", FT_UINT8, BASE_DEC, VALS(nd_opt_ipa_option_code_val), 0x00,
3924             NULL, HFILL }},
3925         { &hf_icmpv6_opt_ipa_prefix_len,
3926           { "Prefix Length", "icmpv6.opt.ipa.prefix_len", FT_UINT8, BASE_DEC, NULL, 0x00,
3927             "That indicates the length of the IPv6 Address Prefix", HFILL }},
3928         { &hf_icmpv6_opt_ipa_ipv6_address,
3929           { "IPv6 Address", "icmpv6.opt.ipa.ipv6_address", FT_IPv6, BASE_NONE, NULL, 0x00,
3930             "The IP address/prefix defined by the Option-Code field", HFILL }},
3931         { &hf_icmpv6_opt_nrpi_option_code,
3932           { "Option-code", "icmpv6.opt.nrpi.option_code", FT_UINT8, BASE_DEC, NULL, 0x00,
3933             NULL, HFILL }},
3934         { &hf_icmpv6_opt_nrpi_prefix_len,
3935           { "Prefix Length", "icmpv6.opt.nrpi.prefix_len", FT_UINT8, BASE_DEC, NULL, 0x00,
3936             "The number of leading bits in the Prefix that are valid", HFILL }},
3937         { &hf_icmpv6_opt_nrpi_prefix,
3938           { "Prefix", "icmpv6.opt.nrpi.prefix", FT_IPv6, BASE_NONE, NULL, 0x00,
3939             "An IP address or a prefix of an IP address", HFILL }},
3940         { &hf_icmpv6_opt_lla_option_code,
3941           { "Option-code", "icmpv6.opt.lla.option_code", FT_UINT8, BASE_DEC, VALS(nd_opt_lla_option_code_val), 0x00,
3942             NULL, HFILL }},
3943         { &hf_icmpv6_opt_lla_bytes,
3944           { "Link-Layer Address", "icmpv6.opt.lla.bytes", FT_BYTES, BASE_NONE, NULL, 0x00,
3945             "(in Bytes Format)", HFILL }},
3946         { &hf_icmpv6_opt_naack_option_code,
3947           { "Option-Code", "icmpv6.opt.naack.option_code", FT_UINT8, BASE_DEC, NULL, 0x00,
3948             NULL, HFILL }},
3949         { &hf_icmpv6_opt_naack_status,
3950           { "Status", "icmpv6.opt.naack.status", FT_UINT8, BASE_DEC, VALS(nd_opt_naack_status_val), 0x00,
3951             "Indicating the disposition of the Unsolicited Neighbor Advertisement message", HFILL }},
3952         { &hf_icmpv6_opt_naack_supplied_ncoa,
3953           { "Supplied NCoA", "icmpv6.opt.naack.supplied_ncoa", FT_IPv6, BASE_NONE, NULL, 0x00,
3954             NULL, HFILL }},
3955         { &hf_icmpv6_opt_map_dist,
3956           { "Distance", "icmpv6.opt.map.distance", FT_UINT8, BASE_DEC, NULL, 0xF0,
3957             "Identifying the distance between MAP and the receiver of the advertisement (in the number of hops)", HFILL }},
3958         { &hf_icmpv6_opt_map_pref,
3959           { "Preference", "icmpv6.opt.map.preference", FT_UINT8, BASE_DEC, NULL, 0x0F,
3960             "Used as an indicator of operator preference (Highest is better)", HFILL }},
3961         { &hf_icmpv6_opt_map_flag,
3962           { "Flag", "icmpv6.opt.map.flag", FT_UINT8, BASE_HEX, NULL, 0x00,
3963             NULL, HFILL }},
3964         { &hf_icmpv6_opt_map_flag_r,
3965           { "RCoA Flag", "icmpv6.opt.map.flag.r", FT_BOOLEAN, 8, NULL, 0x80,
3966             "It indicates that the mobile node is allocated the RCoA by the MAP", HFILL }},
3967         { &hf_icmpv6_opt_map_flag_reserved,
3968           { "Reserved", "icmpv6.opt.map.flag.reserved", FT_UINT8, BASE_DEC, NULL, 0x7F,
3969             "Must be 0", HFILL }},
3970         { &hf_icmpv6_opt_map_valid_lifetime,
3971           { "Valid Lifetime", "icmpv6.opt.map.valid_lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
3972             "This value indicates the validity of the MAP's address and the RCoA.", HFILL }},
3973         { &hf_icmpv6_opt_map_global_address,
3974           { "Global Address", "icmpv6.opt.map.global_address", FT_IPv6, BASE_NONE, NULL, 0x0,
3975             "TOne of the MAP's global addresses", HFILL }},
3976         { &hf_icmpv6_opt_route_info_flag,
3977           { "Flag", "icmpv6.opt.route_info.flag", FT_UINT8, BASE_HEX, NULL, 0x00,
3978             NULL, HFILL }},
3979         { &hf_icmpv6_opt_route_info_flag_route_preference,
3980           { "Route Preference", "icmpv6.opt.route_info.flag.route_preference", FT_UINT8, BASE_DEC, VALS(nd_flag_router_pref), ND_RA_FLAG_RTPREF_MASK,
3981             "The Route Preference indicates whether to prefer the router associated with this prefix over others", HFILL }},
3982         { &hf_icmpv6_opt_route_info_flag_reserved,
3983           { "Reserved", "icmpv6.opt.route_info.flag.reserved", FT_UINT8, BASE_DEC, NULL, ND_RA_FLAG_RESERV_MASK,
3984             "Must be 0", HFILL }},
3985         { &hf_icmpv6_opt_route_lifetime,
3986           { "Route Lifetime", "icmpv6.opt.route_lifetime", FT_UINT32, BASE_DEC, NULL, 0x00,
3987             "The length of time in seconds that the prefix is valid for the purpose of route determination", HFILL }},
3988         { &hf_icmpv6_opt_name_type,
3989           { "Name Type", "icmpv6.opt.name_type", FT_UINT8, BASE_DEC, VALS(icmpv6_option_name_type_vals), 0x0,
3990             NULL, HFILL }},
3991         { &hf_icmpv6_opt_name_x501,
3992           { "DER Encoded X.501 Name", "icmpv6.opt.name_x501", FT_BYTES, BASE_NONE, NULL, 0x0,
3993             NULL, HFILL }},
3994         { &hf_icmpv6_opt_name_fqdn,
3995           { "FQDN", "icmpv6.opt.name_type.fqdn", FT_STRING, BASE_NONE, NULL, 0x0,
3996             NULL, HFILL }},
3997         { &hf_icmpv6_opt_cert_type,
3998           { "Cert Type", "icmpv6.opt.name_type", FT_UINT8, BASE_DEC, VALS(icmpv6_option_cert_type_vals), 0x0,
3999             NULL, HFILL }},
4000         /* RFC3971:  SEcure Neighbor Discovery (SEND) */
4001         { &hf_icmpv6_send_identifier,
4002           { "Identifier", "icmpv6.send.identifier", FT_UINT16, BASE_DEC, NULL, 0x0,
4003             "An identifier to aid in matching with Request and Reply", HFILL }},
4004         { &hf_icmpv6_send_all_components,
4005           { "All Components", "icmpv6.send.all_components", FT_UINT16, BASE_DEC, NULL, 0x0,
4006             "Inform the receiver of the number of certificates in the entire path", HFILL }},
4007         { &hf_icmpv6_send_component,
4008           { "Component", "icmpv6.send.component", FT_UINT16, BASE_DEC, NULL, 0x0,
4009             "If the field is set to 65,535 if the sender seeks to retrieve all certificates", HFILL }},
4010
4011         { &hf_icmpv6_x509if_Name,
4012           { "Name", "icmpv6.x509_Name", FT_UINT32, BASE_DEC, VALS(x509if_Name_vals), 0x0,
4013             NULL, HFILL }},
4014         { &hf_icmpv6_x509af_Certificate,
4015           { "Certificate", "icmpv6.x509_Certificate", FT_NONE, BASE_NONE, NULL, 0x0,
4016             NULL, HFILL }},
4017         { &hf_icmpv6_opt_redirected_packet,
4018           { "Redirected Packet", "icmpv6.opt.redirected_packet", FT_NONE, BASE_NONE, NULL, 0x0,
4019             NULL, HFILL }},
4020         { &hf_icmpv6_opt_mtu,
4021           { "MTU", "icmpv6.opt.mtu", FT_UINT32, BASE_DEC, NULL, 0x0,
4022             "The recommended MTU for the link", HFILL }},
4023         { &hf_icmpv6_opt_nbma_shortcut_limit,
4024           { "Shortcut Limit", "icmpv6.opt.nbma.shortcut_limit", FT_UINT8, BASE_DEC, NULL, 0x0,
4025             "Hop limit for shortcut attempt", HFILL }},
4026         { &hf_icmpv6_opt_advertisement_interval,
4027           { "Advertisement Interval", "icmpv6.opt.advertisement_interval", FT_UINT32, BASE_DEC, NULL, 0x0,
4028             "The maximum time (in milliseconds) between successive unsolicited Router Advertisement messages sent by this router on this network interface", HFILL }},
4029         { &hf_icmpv6_opt_home_agent_preference,
4030           { "Home Agent Preference", "icmpv6.opt.home_agent_preference", FT_UINT16, BASE_DEC, NULL, 0x0,
4031             "The preference for the home agent sending this Router Advertisement", HFILL }},
4032         { &hf_icmpv6_opt_home_agent_lifetime,
4033           { "Home Agent Preference", "icmpv6.opt.home_agent_lifetime", FT_UINT16, BASE_DEC, NULL, 0x0,
4034             "The lifetime associated with the home agent in units of seconds.", HFILL }},
4035         { &hf_icmpv6_opt_ipv6_address,
4036           { "IPv6 Address", "icmpv6.opt.ipv6_address", FT_IPv6, BASE_NONE, NULL, 0x0,
4037             "IPv6 addresses of the interface", HFILL }},
4038         { &hf_icmpv6_opt_rdnss_lifetime,
4039           { "Lifetime", "icmpv6.opt.rdnss.lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
4040             NULL, HFILL }},
4041         { &hf_icmpv6_opt_rdnss,
4042           { "Recursive DNS Servers", "icmpv6.opt.rdnss", FT_IPv6, BASE_NONE, NULL, 0x0,
4043             NULL, HFILL }},
4044         { &hf_icmpv6_opt_efo,
4045           { "Flags Expansion Option", "icmpv6.opt.efo", FT_NONE, BASE_NONE, NULL, 0x0,
4046             NULL, HFILL }},
4047         { &hf_icmpv6_opt_efo_m,
4048           { "Managed address configuration", "icmpv6.opt.efo.m", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_M,
4049             "When set, it indicates that addresses are available via DHCPv6", HFILL }},
4050         { &hf_icmpv6_opt_efo_o,
4051           { "Other configuration", "icmpv6.opt.efo.o", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_O,
4052             "When set, it indicates that other configuration information is available via DHCPv6", HFILL }},
4053         { &hf_icmpv6_opt_efo_h,
4054           { "Home Agent", "icmpv6.opt.efo.h", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_H,
4055             "When set, it indicate that the router sending this Router Advertisement is also functioning as a Mobile IPv6 home agent on this link", HFILL }},
4056         { &hf_icmpv6_opt_efo_prf,
4057           { "Prf (Default Router Preference)", "icmpv6.opt.efo.prf", FT_UINT16, BASE_DEC, VALS(nd_flag_router_pref), FLAGS_EO_PRF,
4058             "Indicates whether to prefer this router over other default routers", HFILL }},
4059         { &hf_icmpv6_opt_efo_p,
4060           { "Proxy", "icmpv6.opt.efo.p", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_P,
4061            NULL, HFILL }},
4062         { &hf_icmpv6_opt_efo_rsv,
4063           { "Reserved", "icmpv6.opt.efo.rsv", FT_UINT16, BASE_DEC, NULL, FLAGS_EO_RSV,
4064             "Must be Zero", HFILL }},
4065         { &hf_icmpv6_opt_hkr_pad_length,
4066           { "Pad Length", "icmpv6.opt.hkr.pad_length", FT_UINT8, BASE_DEC, NULL, 0x0,
4067             "The number of padding octets beyond the end of the Handover Key", HFILL }},
4068         { &hf_icmpv6_opt_hkr_at,
4069           { "AT", "icmpv6.opt.hkr.at", FT_UINT8, BASE_DEC, NULL, 0xF0,
4070             "The algorithm type field describing the algorithm used by FMIPv6 to calculate the authenticator", HFILL }},
4071         { &hf_icmpv6_opt_hkr_reserved,
4072           { "Reserved", "icmpv6.opt.hkr.reserved", FT_UINT8, BASE_DEC, NULL, 0x0F,
4073             "Reserved (Must be Zero)", HFILL }},
4074         { &hf_icmpv6_opt_hkr_encryption_public_key,
4075           { "Handover Key Encryption Public Key", "icmpv6.opt.hkr.encryption_public_key", FT_BYTES, BASE_NONE, NULL, 0x0,
4076             NULL, HFILL }},
4077         { &hf_icmpv6_opt_hkr_padding,
4078           { "Padding", "icmpv6.opt.hkr.padding", FT_BYTES, BASE_NONE, NULL, 0x0,
4079             "A variable-length field making the option length a multiple of 8", HFILL }},
4080         { &hf_icmpv6_opt_hkr_lifetime,
4081           { "Padding", "icmpv6.opt.hkr.lifetime", FT_UINT16, BASE_DEC, NULL, 0x0,
4082             "Lifetime of the handover key (in seconds)", HFILL }},
4083         { &hf_icmpv6_opt_hkr_encrypted_handover_key,
4084           { "Encrypted Handover Key", "icmpv6.opt.hkr.encrypted_handover_key", FT_BYTES, BASE_NONE, NULL, 0x0,
4085             "The shared handover key, encrypted with the MN's handover key encryption public key", HFILL }},
4086         { &hf_icmpv6_opt_hai_option_code,
4087           { "Option-Code", "icmpv6.opt.hai.option_code", FT_UINT8, BASE_DEC, VALS(nd_opt_hai_option_code_val), 0x0,
4088             NULL, HFILL }},
4089         { &hf_icmpv6_opt_hai_length,
4090           { "HAI-Length", "icmpv6.opt.hai.length", FT_UINT8, BASE_DEC, NULL, 0x0,
4091             "The size of the HAI-Value field in octets", HFILL }},
4092         { &hf_icmpv6_opt_hai_value,
4093           { "HAI-Value", "icmpv6.opt.hai.value", FT_BYTES, BASE_NONE, NULL, 0x0,
4094             "The value specified by the Option-Code", HFILL }},
4095         { &hf_icmpv6_opt_mn_option_code,
4096           { "Option-Code", "icmpv6.opt.mn.option_code", FT_UINT8, BASE_DEC, VALS(nd_opt_mn_option_code_val), 0x0,
4097             NULL, HFILL }},
4098         { &hf_icmpv6_opt_mn_length,
4099           { "MN-Length", "icmpv6.opt.mn.length", FT_UINT8, BASE_DEC, NULL, 0x0,
4100             "The size of the MN-Value field in octets", HFILL }},
4101         { &hf_icmpv6_opt_mn_value,
4102           { "MN-Value", "icmpv6.opt.mn.value", FT_BYTES, BASE_NONE, NULL, 0x0,
4103             "The value specified by the Option-Code", HFILL }},
4104         { &hf_icmpv6_opt_dnssl_lifetime,
4105           { "Lifetime", "icmpv6.opt.dnssl.lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
4106             NULL, HFILL }},
4107         { &hf_icmpv6_opt_dnssl,
4108           { "Domain Names", "icmpv6.opt.dnssl", FT_STRING, BASE_NONE, NULL, 0x0,
4109             NULL, HFILL }},
4110         { &hf_icmpv6_opt_aro_status,
4111           { "Status", "icmpv6.opt.aro.status", FT_UINT8, BASE_DEC, VALS(nd_opt_6lowpannd_status_val), 0x00,
4112             "Indicates the status of a registration in the NA response", HFILL }},
4113         { &hf_icmpv6_opt_aro_registration_lifetime,
4114           { "Registration  Lifetime", "icmpv6.opt.aro.registration_lifetime", FT_UINT16, BASE_DEC, NULL, 0x00,
4115             "The amount of time (in a unit of 60 seconds) that the router should retain the Neighbor Cache entry", HFILL }},
4116         { &hf_icmpv6_opt_aro_eui64,
4117           { "EUI-64", "icmpv6.opt.aro.eui64", FT_EUI64, BASE_NONE, NULL, 0x00,
4118             "This field is used to uniquely identify the interface of the registered address", HFILL }},
4119         { &hf_icmpv6_opt_6co_context_length,
4120           { "Context Length", "icmpv6.opt.6co.context_length", FT_UINT8, BASE_DEC, NULL, 0x00,
4121             "The number of leading bits in the Context Prefix field that are valid", HFILL }},
4122         { &hf_icmpv6_opt_6co_flag,
4123           { "Flag", "icmpv6.opt.6co.flag", FT_UINT8, BASE_HEX, NULL, 0x00,
4124             NULL, HFILL }},
4125         { &hf_icmpv6_opt_6co_flag_c,
4126           { "Compression Flag", "icmpv6.opt.6co.flag.c", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ND_OPT_6CO_FLAG_C,
4127             "This flag indicates if the context is valid for use in compression", HFILL }},
4128         { &hf_icmpv6_opt_6co_flag_cid,
4129           { "CID", "icmpv6.opt.6co.flag.cid", FT_UINT8, BASE_DEC, NULL, ND_OPT_6CO_FLAG_CID,
4130             "Context Identifier for this prefix information", HFILL }},
4131         { &hf_icmpv6_opt_6co_flag_reserved,
4132           { "Reserved", "icmpv6.opt.6co.flag.reserved", FT_UINT8, BASE_DEC, NULL, ND_OPT_6CO_FLAG_RESERVED,
4133             "Must be zero", HFILL }},
4134         { &hf_icmpv6_opt_6co_valid_lifetime,
4135           { "Lifetime", "icmpv6.opt.6co.valid_lifetime", FT_UINT16, BASE_DEC, NULL, 0x00,
4136             "The length of time in a unit of 60 seconds that the context is valid for the purpose of header compression or decompression", HFILL }},
4137         { &hf_icmpv6_opt_6co_context_prefix,
4138           { "Context Prefix", "icmpv6.opt.6co.context_prefix", FT_IPv6, BASE_NONE, NULL, 0x00,
4139             "The IPv6 prefix or address corresponding to the Context ID (CID) field", HFILL }},
4140         { &hf_icmpv6_opt_abro_version,
4141           { "Version", "icmpv6.opt.abro.version", FT_UINT16, BASE_DEC, NULL, 0x00,
4142             "The version number corresponding to this set of information contained in the RA message", HFILL }},
4143         { &hf_icmpv6_opt_abro_6lbr_address,
4144           { "6LBR Address", "icmpv6.opt.abro.6lbr_address", FT_IPv6, BASE_NONE, NULL, 0x00,
4145             "IPv6 address of the 6LBR that is the origin of the included version number", HFILL }},
4146
4147         /* RFC2710:  Multicast Listener Discovery for IPv6 */
4148         { &hf_icmpv6_mld_mrd,
4149           { "Maximum Response Delay [ms]", "icmpv6.mld.maximum_response_delay", FT_UINT16, BASE_DEC, NULL, 0x0,
4150             "Specifies the maximum allowed delay before sending a responding Report, in units of milliseconds", HFILL }},
4151         { &hf_icmpv6_mld_multicast_address,
4152           { "Multicast Address", "icmpv6.mld.multicast_address", FT_IPv6, BASE_NONE, NULL, 0x0,
4153             "Specific IPv6 multicast address", HFILL }},
4154         /* RFC 2894: Router Renumbering for IPv6 */
4155         { &hf_icmpv6_rr_sequencenumber,
4156            { "Sequence Number", "icmpv6.rr.sequence_number", FT_UINT32, BASE_DEC, NULL, 0x0,
4157              "The sequence number MUST be non-decreasing between Sequence Number Resets", HFILL }},
4158         { &hf_icmpv6_rr_segmentnumber,
4159            { "Segment Number", "icmpv6.rr.segment_number", FT_UINT8, BASE_DEC, NULL, 0x0,
4160              "Enumerates different valid RR messages having the same Sequence Number", HFILL }},
4161         { &hf_icmpv6_rr_flag,
4162            { "Flags", "icmpv6.rr.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
4163              "Five are defined and three bits are reserved", HFILL }},
4164         { &hf_icmpv6_rr_flag_t,
4165            { "Test Command", "icmpv6.rr.flag.t", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RR_FLAG_T,
4166              "Indicates a Test message: processing is to be simulated and no configuration changes are to be made", HFILL }},
4167         { &hf_icmpv6_rr_flag_r,
4168            { "Result requested", "icmpv6.rr.flag.r", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RR_FLAG_R,
4169              "Indicates that the router send a Result message upon completion of processing the Command message", HFILL }},
4170         { &hf_icmpv6_rr_flag_a,
4171            { "All Interfaces", "icmpv6.rr.flag.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RR_FLAG_A,
4172              "Indicates that the Command be applied to all interfaces regardless of administrative shutdown status", HFILL }},
4173         { &hf_icmpv6_rr_flag_s,
4174            { "Site-specific", "icmpv6.rr.flag.s", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RR_FLAG_S,
4175              "Indicates that the Command be applied only to interfaces which belong to the same site as the interface to which the Command is addressed", HFILL }},
4176         { &hf_icmpv6_rr_flag_p,
4177            { "Processed previously", "icmpv6.rr.flag.p", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RR_FLAG_P,
4178              "Indicates that the Command message was previously processed (and is not a Test) and the responding router is not processing it again", HFILL }},
4179         { &hf_icmpv6_rr_flag_rsv,
4180            { "Reserved", "icmpv6.rr.flag.rsv", FT_UINT8, BASE_DEC, NULL, RR_FLAG_RSV,
4181              "Must be Zero", HFILL }},
4182         { &hf_icmpv6_rr_maxdelay,
4183            { "Max Delay", "icmpv6.rr.maxdelay", FT_UINT16, BASE_DEC, NULL, 0x0,
4184              "Specifying the maximum time (in milliseconds) by which a router MUST delay sending any reply to this Command", HFILL }},
4185
4186         { &hf_icmpv6_rr_pco_mp_part,
4187            { "Match-Prefix Part", "icmpv6.rr.pco.mp", FT_NONE, BASE_NONE, NULL, 0x0,
4188              NULL, HFILL }},
4189         { &hf_icmpv6_rr_pco_mp_opcode,
4190            { "OpCode", "icmpv6.rr.pco.mp.opcode", FT_UINT8, BASE_DEC, VALS(rr_pco_mp_opcode_val), 0x0,
4191              "Specifying the operation to be performed when the associated MatchPrefix matches an interface's prefix or address", HFILL }},
4192         { &hf_icmpv6_rr_pco_mp_oplength,
4193            { "OpLength", "icmpv6.rr.pco.mp.oplength", FT_UINT8, BASE_DEC, NULL, 0x0,
4194              "The total length of this Prefix Control Operation (in units of 8 octets)", HFILL }},
4195         { &hf_icmpv6_rr_pco_mp_ordinal,
4196            { "Ordinal", "icmpv6.rr.pco.mp.ordinal", FT_UINT8, BASE_HEX, NULL, 0x0,
4197              "The value is otherwise unconstrained", HFILL }},
4198         { &hf_icmpv6_rr_pco_mp_matchlen,
4199            { "MatchLen", "icmpv6.rr.pco.mp.matchlen", FT_UINT8, BASE_DEC, NULL, 0x0,
4200              "Between 0 and 128 inclusive specifying the number of initial bits of MatchPrefix which are significant in matching", HFILL }},
4201         { &hf_icmpv6_rr_pco_mp_minlen,
4202            { "MinLen", "icmpv6.rr.pco.mp.minlen", FT_UINT8, BASE_DEC, NULL, 0x0,
4203              "Specifying the minimum length which any configured prefix must have in order to be eligible for testing against the MatchPrefix", HFILL }},
4204         { &hf_icmpv6_rr_pco_mp_maxlen,
4205            { "MaxLen", "icmpv6.rr.pco.mp.maxlen", FT_UINT8, BASE_DEC, NULL, 0x0,
4206              "Specifying the maximum length which any configured prefix must have in order to be eligible for testing against the MatchPrefix", HFILL }},
4207         { &hf_icmpv6_rr_pco_mp_matchprefix,
4208            { "MatchPrefix", "icmpv6.rr.pco.mp.matchprefix", FT_IPv6, BASE_NONE, NULL, 0x0,
4209              "The 128-bit prefix to be compared with each interface's prefix or address", HFILL }},
4210         { &hf_icmpv6_rr_pco_up_part,
4211            { "Use-Prefix Part", "icmpv6.rr.pco.up", FT_NONE, BASE_NONE, NULL, 0x0,
4212              NULL, HFILL }},
4213         { &hf_icmpv6_rr_pco_up_uselen,
4214            { "UseLen", "icmpv6.rr.pco.up.uselen", FT_UINT8, BASE_DEC, NULL, 0x0,
4215              "specifying the number of initial bits of UsePrefix to use in creating a new prefix for an interface", HFILL }},
4216         { &hf_icmpv6_rr_pco_up_keeplen,
4217            { "KeepLen", "icmpv6.rr.pco.up.keeplen", FT_UINT8, BASE_DEC, NULL, 0x0,
4218              "Specifying the number of bits of the prefix or address which matched the associated Match-Prefix which should be retained in the new prefix", HFILL }},
4219         { &hf_icmpv6_rr_pco_up_flagmask,
4220            { "FlagMask", "icmpv6.rr.pco.up.flagmask", FT_UINT8, BASE_HEX, NULL, 0x0,
4221              "A 1 bit in any position means that the corresponding flag bit in a Router Advertisement (RA) Prefix Information Option for the New Prefix should be set from the RAFlags field in this Use-Prefix Part", HFILL }},
4222
4223         { &hf_icmpv6_rr_pco_up_flagmask_l,
4224           { "On-link flag(L)", "icmpv6.rr.pco.up.flagmask.l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80,
4225             "When set, indicates the On-link (L) flag bit in a Router Advertisement (RA) Prefix Information Option for the New Prefix should be set from the RAFlags field in this Use-Prefix Part", HFILL }},
4226         { &hf_icmpv6_rr_pco_up_flagmask_a,
4227           { "Autonomous address-configuration flag(A)", "icmpv6.rr.pco.up.flagmask.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40,
4228             "When set, indicates the Autonomous address-configuration (A) flag bit in a Router Advertisement (RA) Prefix Information Option for the New Prefix should be set from the RAFlags field in this Use-Prefix Part", HFILL }},
4229         { &hf_icmpv6_rr_pco_up_flagmask_reserved,
4230           { "Reserved", "icmpv6.rr.pco.up.flagmask.reserved", FT_UINT8, BASE_DEC, NULL, 0x3f,
4231             NULL, HFILL }},
4232         { &hf_icmpv6_rr_pco_up_raflags,
4233            { "RAFlags", "icmpv6.rr.pco.up.raflags", FT_UINT8, BASE_HEX, NULL, 0x0,
4234              "Under control of the FlagMask field, may be used to initialize the flags in Router Advertisement Prefix Information Options  which advertise the New Prefix", HFILL }},
4235         { &hf_icmpv6_rr_pco_up_raflags_l,
4236           { "On-link flag(L)", "icmpv6.rr.pco.up.flagmask.l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80,
4237             "When set, indicates that this prefix can be used for on-link determination", HFILL }},
4238         { &hf_icmpv6_rr_pco_up_raflags_a,
4239           { "Autonomous address-configuration flag(A)", "icmpv6.rr.pco.up.flagmask.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40,
4240             "When set indicates that this prefix can be used for stateless address configuration", HFILL }},
4241         { &hf_icmpv6_rr_pco_up_raflags_reserved,
4242           { "Reserved", "icmpv6.rr.pco.up.flagmask.reserved", FT_UINT8, BASE_DEC, NULL, 0x3f,
4243             NULL, HFILL }},
4244         { &hf_icmpv6_rr_pco_up_validlifetime,
4245            { "Valid Lifetime", "icmpv6.rr.pco.up.validlifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
4246              "The number of seconds for which the New Prefix will be valid", HFILL }},
4247         { &hf_icmpv6_rr_pco_up_preferredlifetime,
4248            { "Preferred Lifetime", "icmpv6.rr.pco.up.preferredlifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
4249              "The number of seconds for which the New Prefix will be preferred", HFILL }},
4250         { &hf_icmpv6_rr_pco_up_flag,
4251            { "Flags", "icmpv6.rr.pco.up.flag", FT_UINT32, BASE_HEX, NULL, 0x0,
4252              NULL, HFILL }},
4253         { &hf_icmpv6_rr_pco_up_flag_v,
4254           { "Decrement valid lifetime", "icmpv6.rr.pco.up.flag.v", FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x80000000,
4255             "When set, indicating that the valid lifetime of the New Prefix MUST be effectively decremented in real time", HFILL }},
4256         { &hf_icmpv6_rr_pco_up_flag_p,
4257           { "Decrement preferred lifetime", "icmpv6.rr.pco.up.flag.p", FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x40000000,
4258             "When set, indicating that the preferred lifetime of the New Prefix MUST be effectively decremented in real time", HFILL }},
4259         { &hf_icmpv6_rr_pco_up_flag_reserved,
4260           { "Reserved", "icmpv6.rr.pco.up.flag.reserved", FT_UINT32, BASE_DEC, NULL, 0x3FFFFFFF,
4261             NULL, HFILL }},
4262         { &hf_icmpv6_rr_pco_up_useprefix,
4263            { "UsePrefix", "icmpv6.rr.pco.up.useprefix", FT_IPv6, BASE_NONE, NULL, 0x0,
4264              "The 128-bit Use-prefix which either becomes or is used in forming (if KeepLen is nonzero) the New Prefix", HFILL }},
4265         { &hf_icmpv6_rr_rm,
4266            { "Result Message", "icmpv6.rr.rm", FT_NONE, BASE_NONE, NULL, 0x0,
4267              NULL, HFILL }},
4268         { &hf_icmpv6_rr_rm_flag,
4269            { "Flags", "icmpv6.rr.rm.flag", FT_UINT16, BASE_HEX, NULL, 0x0,
4270              NULL, HFILL }},
4271         { &hf_icmpv6_rr_rm_flag_b,
4272           { "Bounds", "icmpv6.rr.rm.flag.b", FT_BOOLEAN, 16, TFS(&tfs_set_notset), 0x0002,
4273             "When set, indicates that one or more fields in the associated PCO were out of bounds", HFILL }},
4274         { &hf_icmpv6_rr_rm_flag_f,
4275           { "Forbidden", "icmpv6.rr.rm.flag.f", FT_BOOLEAN, 16, TFS(&tfs_set_notset), 0x0001,
4276             "When set, indicates that one or more Use-Prefix parts from the associated PCO were not honored by the router because of attempted formation of a forbidden prefix format, such as a multicast or loopback address", HFILL }},
4277         { &hf_icmpv6_rr_rm_flag_reserved,
4278           { "Reserved", "icmpv6.rr.rm.flag.reserved", FT_UINT16, BASE_DEC, NULL, 0xFFFD,
4279             "Must be Zero", HFILL }},
4280         { &hf_icmpv6_rr_rm_ordinal,
4281            { "Ordinal", "icmpv6.rr.rm.ordinal", FT_UINT8, BASE_HEX, NULL, 0x0,
4282              "The value is otherwise unconstrained", HFILL }},
4283         { &hf_icmpv6_rr_rm_matchedlen,
4284            { "MatchedLen", "icmpv6.rr.rm.matchedlen", FT_UINT8, BASE_DEC, NULL, 0x0,
4285              "The length of the Matched Prefix", HFILL }},
4286         { &hf_icmpv6_rr_rm_interfaceindex,
4287            { "InterfaceIndex", "icmpv6.rr.rm.interfaceindex", FT_UINT32, BASE_DEC, NULL, 0x0,
4288              "The router's numeric designation of the interface on which the MatchedPrefix was configured", HFILL }},
4289         { &hf_icmpv6_rr_rm_matchedprefix,
4290            { "MatchedPrefix", "icmpv6.rr.rm.matchedprefix", FT_IPv6, BASE_NONE, NULL, 0x0,
4291              "The 128 Bits MatchedPrefix", HFILL }},
4292
4293         /* RFC3775: Mobility Support in IPv6 */
4294         { &hf_icmpv6_mip6_identifier,
4295           { "Identifier", "icmpv6.mip6.identifier", FT_UINT16, BASE_DEC_HEX, NULL, 0x0,
4296             "An identifier to aid in matching with Request and Reply", HFILL }},
4297         { &hf_icmpv6_mip6_home_agent_address,
4298           { "Home Agent Address", "icmpv6.mip6.home_agent_address", FT_IPv6, BASE_NONE, NULL, 0x0,
4299             "A list of addresses of home agents on the home link for the mobile node", HFILL }},
4300         { &hf_icmpv6_mip6_flag,
4301           { "Flags", "icmpv6.mip6.flag", FT_NONE, BASE_NONE, NULL, 0x0,
4302             NULL, HFILL }},
4303         { &hf_icmpv6_mip6_flag_m,
4304           { "Managed address configuration", "icmpv6.mip6.flag.m", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_M,
4305             "When set, it indicates that addresses are available via DHCPv6", HFILL }},
4306         { &hf_icmpv6_mip6_flag_o,
4307           { "Other configuration", "icmpv6.mip6.flag.o", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_O,
4308             "When set, it indicates that other configuration information is available via DHCPv6", HFILL }},
4309         { &hf_icmpv6_mip6_flag_rsv,
4310           { "Reserved", "icmpv6.mip6.flag.rsv", FT_UINT16, BASE_DEC, NULL, 0x2FFF,
4311             "Must be Zero", HFILL }},
4312
4313         /* RFC3810: Multicast Listener Discovery Version 2 (MLDv2) for IPv6 */
4314         { &hf_icmpv6_mld_mrc,
4315           { "Maximum Response Code", "icmpv6.mld.maximum_response_code", FT_UINT16, BASE_DEC, NULL, 0x0,
4316             "Specifies the maximum allowed delay before sending a responding Report", HFILL }},
4317        { &hf_icmpv6_mld_flag,
4318           { "Flags", "icmpv6.mld.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
4319             NULL, HFILL }},
4320        { &hf_icmpv6_mld_flag_s,
4321           { "Suppress Router-Side Processing", "icmpv6.mld.flag.s", FT_BOOLEAN, 8, NULL, MLD_FLAG_S,
4322             "Indicates to any receiving multicast routers that they have to suppress the normal timer updates they perform upon hearing a Query", HFILL }},
4323        { &hf_icmpv6_mld_flag_qrv,
4324           { "QRV (Querier's Robustness Variable)", "icmpv6.mld.flag.qrv", FT_UINT8, BASE_DEC, NULL, MLD_FLAG_QRV,
4325             "Contains the RV (Robustness Variable) value used by the Querier", HFILL }},
4326        { &hf_icmpv6_mld_flag_rsv,
4327           { "Reserved", "icmpv6.mld.flag.reserved", FT_UINT8, BASE_DEC, NULL, MLD_FLAG_RSV,
4328             "Must Be Zero", HFILL }},
4329        { &hf_icmpv6_mld_qqi,
4330           { "QQIC (Querier's Query Interval Code)", "icmpv6.mld.qqi", FT_UINT8, BASE_DEC, NULL, 0x0,
4331             "Specifies the QI (Query Interval) used by the Querier", HFILL }},
4332        { &hf_icmpv6_mld_nb_sources,
4333           { "Number of Sources", "icmpv6.mld.nb_sources", FT_UINT16, BASE_DEC, NULL, 0x0,
4334             "Specifies how many source addresses are present in the Query", HFILL }},
4335        { &hf_icmpv6_mld_source_address,
4336           { "Source Address", "icmpv6.mld.source_address", FT_IPv6, BASE_NONE, NULL, 0x0,
4337             "The Source Address fields are a vector of unicast addresses", HFILL }},
4338         { &hf_icmpv6_mldr_nb_mcast_records,
4339           { "Number of Multicast Address Records", "icmpv6.mldr.nb_mcast_records", FT_UINT16, BASE_DEC, NULL, 0x0,
4340             "Specifies how many Multicast Address Records are present in this Report", HFILL }},
4341         { &hf_icmpv6_mldr_mar,
4342           { "Multicast Address Record", "icmpv6.mldr.mar", FT_NONE, BASE_NONE, NULL, 0x0,
4343             "Each Multicast Address Record is a block of fields that contain information on the sender listening to a single multicast address on the interface from which the Report is sent", HFILL }},
4344         { &hf_icmpv6_mldr_mar_record_type,
4345           { "Record Type", "icmpv6.mldr.mar.record_type", FT_UINT8, BASE_DEC, VALS(mldr_record_type_val), 0x0,
4346             "It specifies the type of the Multicast Address Record", HFILL }},
4347         { &hf_icmpv6_mldr_mar_aux_data_len,
4348           { "Aux Data Len", "icmpv6.mldr.mar.aux_data_len", FT_UINT8, BASE_DEC, NULL, 0x0,
4349             "The Aux Data Len field contains the length (in units of 32-bit words) of the Auxiliary Data Field in this Multicast Address Record", HFILL }},
4350         { &hf_icmpv6_mldr_mar_nb_sources,
4351           { "Number of Sources", "icmpv6.mldr.mar.nb_sources", FT_UINT16, BASE_DEC, NULL, 0x0,
4352             "The Number of Sources field specifies how many source addresses are present in this Multicast Address Record", HFILL }},
4353         { &hf_icmpv6_mldr_mar_multicast_address,
4354           { "Multicast Address", "icmpv6.mldr.mar.multicast_address", FT_IPv6, BASE_NONE, NULL, 0x0,
4355             "The Multicast Address field contains the multicast address to which this Multicast Address Record pertains", HFILL }},
4356         { &hf_icmpv6_mldr_mar_source_address,
4357           { "Source Address", "icmpv6.mldr.mar.source_address", FT_IPv6, BASE_NONE, NULL, 0x0,
4358             "The Source Address fields are a vector of unicast addresses", HFILL }},
4359         { &hf_icmpv6_mldr_mar_auxiliary_data,
4360           { "Auxiliary Data", "icmpv6.mldr.mar.auxiliary_data", FT_BYTES, BASE_NONE, NULL, 0x0,
4361             "Contains additional information that pertain to this Multicast Address Record", HFILL }},
4362         /* RFC 4068/5268/5568: Fast Handovers for Mobile IPv6 ( Mobile IPv6 Fast Handovers ) */
4363         { &hf_icmpv6_fmip6_subtype,
4364            { "Subtype", "icmpv6.fmip6.subtype", FT_UINT8, BASE_DEC, VALS(fmip6_subtype_val), 0x0,
4365              "Designates the Subtype of information", HFILL }},
4366         { &hf_icmpv6_fmip6_hi_flag,
4367           { "Flag", "icmpv6.fmip6.hi.flag", FT_UINT8, BASE_HEX, NULL, 0x00,
4368             NULL, HFILL }},
4369         { &hf_icmpv6_fmip6_hi_flag_s,
4370           { "Assigned address configuration", "icmpv6.fmip6.hi.flag.s", FT_BOOLEAN, 8, TFS(&tfs_set_notset), FMIP6_HI_FLAG_S,
4371             "When set, this message requests a new CoA to be returned by the destination", HFILL }},
4372         { &hf_icmpv6_fmip6_hi_flag_u,
4373           { "Buffer", "icmpv6.fmip6.hi.flag.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), FMIP6_HI_FLAG_U,
4374             "When set, the destination SHOULD buffer any packets toward the node indicated in the options of this message", HFILL }},
4375         { &hf_icmpv6_fmip6_hi_flag_reserved,
4376           { "Reserved", "icmpv6.fmip6.hi.flag.reserved", FT_UINT8, BASE_DEC, NULL, FMIP6_HI_FLAG_RSV,
4377             NULL, HFILL }},
4378         { &hf_icmpv6_fmip6_identifier,
4379           { "Identifier", "icmpv6.fmip6.identifier", FT_UINT16, BASE_DEC_HEX, NULL, 0x0,
4380             "An identifier to aid in matching with Request and Reply", HFILL }},
4381
4382         /* RFC 4286: Multicast Router Discovery */
4383         { &hf_icmpv6_mcast_ra_query_interval,
4384           { "Query Interval", "icmpv6.mcast_ra.query_interval", FT_UINT16, BASE_DEC, NULL, 0x0,
4385             "The Query Interval value (in seconds) in use by MLD on the interface.", HFILL }},
4386         { &hf_icmpv6_mcast_ra_robustness_variable,
4387           { "Robustness Variable", "icmpv6.mcast_ra.robustness_variable", FT_UINT16, BASE_DEC, NULL, 0x0,
4388             "The Robustness Variable in use by MLD on the advertising interface", HFILL }},
4389
4390         /* RFC 4620: IPv6 Node Information Queries */
4391         { &hf_icmpv6_ni_qtype,
4392            { "Qtype", "icmpv6.ni.qtype", FT_UINT16, BASE_DEC, VALS(ni_qtype_val), 0x0,
4393              "Designates the type of information", HFILL }},
4394         { &hf_icmpv6_ni_flag,
4395            { "Flags", "icmpv6.ni.flag", FT_UINT16, BASE_HEX, NULL, 0x0,
4396              "Qtype-specific flags that may be defined for certain Query types and their Replies", HFILL }},
4397         { &hf_icmpv6_ni_flag_g,
4398            { "Global-scope addresses", "icmpv6.ni.flag.g", FT_BOOLEAN, 16, TFS(&tfs_set_notset), NI_FLAG_G,
4399              "Global-scope addresses are requested", HFILL }},
4400         { &hf_icmpv6_ni_flag_s,
4401            { "Site-local addresses", "icmpv6.ni.flag.s", FT_BOOLEAN, 16, TFS(&tfs_set_notset), NI_FLAG_S,
4402              "Site-local addresses are requested", HFILL }},
4403         { &hf_icmpv6_ni_flag_l,
4404            { "Link-local addresses", "icmpv6.ni.flag.l", FT_BOOLEAN, 16, TFS(&tfs_set_notset), NI_FLAG_L,
4405              "Link-local addresses are requested", HFILL }},
4406         { &hf_icmpv6_ni_flag_c,
4407            { "Compression", "icmpv6.ni.flag.c", FT_BOOLEAN, 16, TFS(&tfs_set_notset), NI_FLAG_C,
4408              "IPv4-compatible (now deprecated) and IPv4-mapped addresses are requested", HFILL }},
4409         { &hf_icmpv6_ni_flag_a,
4410            { "Unicast Addresses", "icmpv6.ni.flag.a", FT_BOOLEAN, 16, TFS(&tfs_ni_flag_a), NI_FLAG_A,
4411              "Responder's unicast addresses", HFILL }},
4412         { &hf_icmpv6_ni_flag_t,
4413            { "Truncated", "icmpv6.ni.flag.t", FT_BOOLEAN, 16, TFS(&tfs_set_notset), NI_FLAG_T,
4414              "Defined in a Reply only, indicates that the set of addresses is incomplete for space reasons", HFILL }},
4415         { &hf_icmpv6_ni_flag_rsv,
4416            { "Reserved", "icmpv6.ni.flag.rsv", FT_UINT16, BASE_HEX, NULL, NI_FLAG_RSV,
4417              "Must be Zero", HFILL }},
4418         { &hf_icmpv6_ni_nonce,
4419            { "Nonce", "icmpv6.ni.nonce", FT_UINT64, BASE_HEX, NULL, 0x0,
4420              "An opaque 64-bit field", HFILL }},
4421         { &hf_icmpv6_ni_query_subject_ipv6,
4422            { "IPv6 subject address", "icmpv6.ni.query.subject_ipv6", FT_IPv6, BASE_NONE, NULL, 0x0,
4423              NULL, HFILL }},
4424         { &hf_icmpv6_ni_query_subject_fqdn,
4425            { "FQDN subject", "icmpv6.ni.query.subject_fqdn", FT_STRING, BASE_NONE, NULL, 0x0,
4426              NULL, HFILL }},
4427         { &hf_icmpv6_ni_query_subject_ipv4,
4428            { "IPv4 subject address", "icmpv6.ni.query.subject_ipv4", FT_IPv4, BASE_NONE, NULL, 0x0,
4429              NULL, HFILL }},
4430         { &hf_icmpv6_ni_reply_node_ttl,
4431            { "TTL", "icmpv6.ni.query.subject_ipv4", FT_UINT32, BASE_DEC, NULL, 0x0,
4432              NULL, HFILL }},
4433         { &hf_icmpv6_ni_reply_node_name,
4434            { "Name Node", "icmpv6.ni.query.node_name", FT_STRING, BASE_NONE, NULL, 0x0,
4435              NULL, HFILL }},
4436         { &hf_icmpv6_ni_reply_node_address,
4437            { "IPv6 Node address", "icmpv6.ni.query.node_address", FT_IPv6, BASE_NONE, NULL, 0x0,
4438              NULL, HFILL }},
4439         { &hf_icmpv6_ni_reply_ipv4_address,
4440            { "IPv4 Node address", "icmpv6.ni.query.ipv4_address", FT_IPv4, BASE_NONE, NULL, 0x0,
4441              NULL, HFILL }},
4442
4443         /* RPL: draft-ietf-roll-rpl-19.txt: Routing over Low-Power and Lossy Networks. */
4444         { &hf_icmpv6_rpl_dis_flag,
4445            { "Flags", "icmpv6.rpl.dis.flags", FT_UINT8, BASE_DEC, NULL, 0x0,
4446              "8-bit unused field reserved for flags", HFILL }},
4447         { &hf_icmpv6_rpl_dio_instance,
4448            { "RPLInstanceID", "icmpv6.rpl.dio.instance", FT_UINT8, BASE_DEC, NULL, 0x0,
4449              "Set by the DODAG root that indicates which RPL Instance the DODAG is part of", HFILL }},
4450         { &hf_icmpv6_rpl_dio_version,
4451            { "Version", "icmpv6.rpl.dio.version", FT_UINT8, BASE_DEC, NULL, 0x0,
4452              "Set by the DODAG root to the DODAGVersionNumber", HFILL }},
4453         { &hf_icmpv6_rpl_dio_rank,
4454            { "Rank", "icmpv6.rpl.dio.rank", FT_UINT16, BASE_DEC, NULL, 0x0,
4455              "Indicating the DODAG rank of the node sending the DIO message", HFILL }},
4456         { &hf_icmpv6_rpl_dio_flag,
4457            { "Flags", "icmpv6.rpl.dio.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
4458              NULL, HFILL }},
4459         { &hf_icmpv6_rpl_dio_flag_g,
4460            { "Grounded (G)", "icmpv6.rpl.dio.flag.g", FT_BOOLEAN, 8, NULL, RPL_DIO_FLAG_G,
4461              "Indicates whether the DODAG advertised can satisfy the application-defined goal", HFILL }},
4462         { &hf_icmpv6_rpl_dio_flag_0,
4463            { "Zero", "icmpv6.rpl.dio.flag.0", FT_BOOLEAN, 8, NULL, RPL_DIO_FLAG_0,
4464              NULL, HFILL }},
4465         { &hf_icmpv6_rpl_dio_flag_mop,
4466            { "Mode of Operation (MOP)", "icmpv6.rpl.dio.flag.mop", FT_UINT8, BASE_HEX, VALS(rpl_dio_map_val), RPL_DIO_FLAG_MOP,
4467              "Identifies the mode of operation of the RPL Instance as administratively provisioned at and distributed by the DODAG Root", HFILL }},
4468         { &hf_icmpv6_rpl_dio_flag_prf,
4469            { "DODAG Preference", "icmpv6.rpl.dio.flag.preference", FT_UINT8, BASE_DEC, NULL, RPL_DIO_FLAG_PRF,
4470              "Defines how preferable the root of this DODAG is compared to other DODAG roots within the instance", HFILL }},
4471         { &hf_icmpv6_rpl_dio_dtsn,
4472            { "Destination Advertisement Trigger Sequence Number (DTSN)", "icmpv6.rpl.dio.dtsn", FT_UINT8, BASE_DEC, NULL, 0x0,
4473              "The DTSN is used as part of the procedure to maintain downward routes.", HFILL }},
4474         { &hf_icmpv6_rpl_dio_dagid,
4475            { "DODAGID", "icmpv6.rpl.dio.dagid", FT_IPv6, BASE_NONE, NULL, 0x0,
4476              "IPv6 address set by a DODAG root which uniquely identifies a DODAG", HFILL }},
4477         { &hf_icmpv6_rpl_dao_instance,
4478            { "RPLInstanceID", "icmpv6.rpl.dao.instance", FT_UINT8, BASE_DEC, NULL, 0x0,
4479              "Indicating the topology instance associated with the DODAG as learned from the DIO", HFILL }},
4480         { &hf_icmpv6_rpl_dao_flag,
4481            { "Flags", "icmpv6.rpl.dao.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
4482              NULL, HFILL }},
4483         { &hf_icmpv6_rpl_dao_flag_k,
4484            { "DAO-ACK Request (K)", "icmpv6.rpl.dao.flag.k", FT_BOOLEAN, 8, NULL, RPL_DAO_FLAG_K,
4485              "Indicates that the recipient is expected to send a DAO-ACK back", HFILL }},
4486         { &hf_icmpv6_rpl_dao_flag_d,
4487            { "DODAGID Present (D)", "icmpv6.rpl.dao.flag.d", FT_BOOLEAN, 8, NULL, RPL_DAO_FLAG_D,
4488              "Indicates that the DODAGID field is present", HFILL }},
4489         { &hf_icmpv6_rpl_dao_flag_rsv,
4490            { "Reserved", "icmpv6.rpl.dao.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_DAO_FLAG_RESERVED,
4491              "Must be zero", HFILL }},
4492         { &hf_icmpv6_rpl_dao_sequence,
4493            { "DAO Sequence", "icmpv6.rpl.dao.sequence", FT_UINT8, BASE_DEC, NULL, 0x0,
4494              "Incremented at each unique DAO message from a node and echoed in the DAO-ACK message", HFILL }},
4495         { &hf_icmpv6_rpl_dao_dodagid,
4496            { "DODAGID", "icmpv6.rpl.dao.dodagid", FT_IPv6, BASE_NONE, NULL, 0x0,
4497              "IPv6 address set by a DODAG root which uniquely identifies a DODAG", HFILL }},
4498         { &hf_icmpv6_rpl_daoack_instance,
4499            { "RPLInstanceID", "icmpv6.rpl.daoack.instance", FT_UINT8, BASE_DEC, NULL, 0x0,
4500              "Indicating the topology instance associated with the DODAG, as learned from the DIO", HFILL }},
4501         { &hf_icmpv6_rpl_daoack_flag,
4502            { "Flag", "icmpv6.rpl.daoack.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
4503              NULL, HFILL }},
4504         { &hf_icmpv6_rpl_daoack_flag_d,
4505            { "DODAGID Present (D)", "icmpv6.rpl.daoack.flag.d", FT_BOOLEAN, 8, NULL, RPL_DAOACK_FLAG_D,
4506              "Indicates that the DODAGID field is present", HFILL }},
4507         { &hf_icmpv6_rpl_daoack_flag_rsv,
4508            { "Reserved", "icmpv6.rpl.daoack.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_DAOACK_FLAG_RESERVED,
4509              "Must be zero", HFILL }},
4510         { &hf_icmpv6_rpl_daoack_sequence,
4511            { "DAO-ACK Sequence", "icmpv6.rpl.daoack.sequence", FT_UINT8, BASE_DEC, NULL, 0x0,
4512              "Incremented at each DAO message from a node, and echoed in the DAO-ACK by the recipient", HFILL }},
4513         { &hf_icmpv6_rpl_daoack_status,
4514            { "Status", "icmpv6.rpl.daoack.status", FT_UINT8, BASE_DEC, NULL, 0x0,
4515              "Indicates the completion", HFILL }},
4516         { &hf_icmpv6_rpl_daoack_dodagid,
4517            { "DODAGID", "icmpv6.rpl.daoack.dodagid", FT_IPv6, BASE_NONE, NULL, 0x0,
4518              "IPv6 address integer set by a DODAG root which uniquely identifies a DODAG", HFILL }},
4519         { &hf_icmpv6_rpl_cc_instance,
4520            { "RPLInstanceID", "icmpv6.rpl.cc.instance", FT_UINT8, BASE_DEC, NULL, 0x0,
4521              "Indicating the topology instance associated with the DODAG, as learned from the DIO", HFILL }},
4522         { &hf_icmpv6_rpl_cc_flag,
4523            { "Flag", "icmpv6.rpl.cc.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
4524              NULL, HFILL }},
4525         { &hf_icmpv6_rpl_cc_flag_r,
4526            { "Reponse (R)", "icmpv6.rpl.cc.flag.r", FT_BOOLEAN, 8, NULL, RPL_CC_FLAG_R,
4527              "Indicates whether the CC message is a response", HFILL }},
4528         { &hf_icmpv6_rpl_cc_flag_rsv,
4529            { "Reserved", "icmpv6.rpl.cc.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_CC_FLAG_RESERVED,
4530              "Must be zero", HFILL }},
4531         { &hf_icmpv6_rpl_cc_nonce,
4532            { "CC Nonce", "icmpv6.rpl.cc.nonce", FT_UINT16, BASE_HEX, NULL, 0x0,
4533              "The corresponding CC response includes the same CC nonce value as the request, as learned from the DIO", HFILL }},
4534         { &hf_icmpv6_rpl_cc_dodagid,
4535            { "DODAGID", "icmpv6.rpl.cc.dodagid", FT_IPv6, BASE_NONE, NULL, 0x0,
4536              "IPv6 address integer set by a DODAG root which uniquely identifies a DODAG", HFILL }},
4537         { &hf_icmpv6_rpl_cc_destination_counter,
4538            { "Destination Counter", "icmpv6.rpl.cc.destination_counter", FT_UINT32, BASE_DEC, NULL, 0x0,
4539              "Indicating the sender's estimate of the destination's current security Counter value", HFILL }},
4540         { &hf_icmpv6_rpl_secure_flag,
4541            { "Flags", "icmpv6.rpl.secure.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
4542              NULL, HFILL }},
4543         { &hf_icmpv6_rpl_secure_flag_t,
4544            { "Counter is Time (T)", "icmpv6.rpl.secure.flag.t", FT_BOOLEAN, 8, NULL, RPL_SECURE_FLAG_T,
4545              "If it is set then the Counter field is a timestamp", HFILL }},
4546         { &hf_icmpv6_rpl_secure_flag_rsv,
4547            { "Reserved", "icmpv6.rpl.secure.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_SECURE_FLAG_RSV,
4548              "Must be zero", HFILL }},
4549         { &hf_icmpv6_rpl_secure_algorithm,
4550            { "Algorithm", "icmpv6.rpl.secure.algorithm", FT_UINT8, BASE_DEC, NULL, 0x0,
4551              "The Security Algorithm field specifies the encryption, MAC, and signature scheme the network uses", HFILL }},
4552         { &hf_icmpv6_rpl_secure_algorithm_encryption,
4553            { "Algorithm (Encryption)", "icmpv6.rpl.secure.algorithm.encryption", FT_UINT8, BASE_DEC, VALS(rpl_secure_algorithm_encryption_val), 0x0,
4554              NULL, HFILL }},
4555         { &hf_icmpv6_rpl_secure_algorithm_signature,
4556            { "Algorithm (Signature)", "icmpv6.rpl.secure.algorithm.signature", FT_UINT8, BASE_DEC, VALS(rpl_secure_algorithm_signature_val), 0x0,
4557              NULL, HFILL }},
4558         { &hf_icmpv6_rpl_secure_kim,
4559            { "Key Identifier Mode (KIM)", "icmpv6.rpl.secure.kim", FT_UINT8, BASE_DEC, NULL, RPL_SECURE_KIM,
4560              "That indicates whether the key used for packet protection is determined implicitly or explicitly and indicates the particular representation of the Key Identifier field", HFILL }},
4561         { &hf_icmpv6_rpl_secure_lvl,
4562            { "Security Level (LVL)", "icmpv6.rpl.secure.lvl", FT_UINT8, BASE_DEC, NULL, RPL_SECURE_LVL,
4563              "Indicates the provided packet protection", HFILL }},
4564         { &hf_icmpv6_rpl_secure_rsv,
4565            { "Reserved", "icmpv6.rpl.secure.rsv", FT_UINT8, BASE_DEC, NULL, RPL_SECURE_RSV,
4566              "Must be zero", HFILL }},
4567         { &hf_icmpv6_rpl_secure_counter,
4568            { "Counter", "icmpv6.rpl.secure.counter", FT_UINT32, BASE_DEC, NULL, 0x0,
4569              "Indicates the non-repeating 4-octet value used to construct the cryptographic mechanism that implements packet protection and allows for the provision of semantic security", HFILL }},
4570         { &hf_icmpv6_rpl_secure_key_source,
4571            { "Key Source", "icmpv6.rpl.secure.key.source", FT_BYTES, BASE_NONE, NULL, 0x0,
4572              "Indicates the logical identifier of the originator of a group key", HFILL }},
4573         { &hf_icmpv6_rpl_secure_key_index,
4574            { "Key Source", "icmpv6.rpl.secure.key.index", FT_UINT8, BASE_DEC, NULL, 0x0,
4575              "Allows unique identification of different keys with the same originator", HFILL }},
4576         { &hf_icmpv6_rpl_opt,
4577           { "ICMPv6 RPL Option", "icmpv6.opt", FT_NONE, BASE_NONE, NULL, 0x0,
4578             "Option", HFILL }},
4579         { &hf_icmpv6_rpl_opt_type,
4580           { "Type", "icmpv6.rpl.opt.type", FT_UINT8, BASE_DEC, VALS(rpl_option_vals), 0x0,
4581             "Options type", HFILL }},
4582         { &hf_icmpv6_rpl_opt_length,
4583           { "Length", "icmpv6.rpl.opt.length", FT_UINT8, BASE_DEC, NULL, 0x0,
4584             "The length of the option in octets excluding the Type and Length fields", HFILL }},
4585         { &hf_icmpv6_rpl_opt_reserved,
4586           { "Reserved", "icmpv6.rpl.opt.reserved", FT_NONE, BASE_NONE, NULL, 0x0,
4587             "Reserved (Must be 0)", HFILL }},
4588         { &hf_icmpv6_rpl_opt_padn,
4589           { "Paddn", "icmpv6.rpl.opt.padn", FT_NONE, BASE_NONE, NULL, 0x0,
4590             "Padding (Must be 0)", HFILL }},
4591         { &hf_icmpv6_rpl_opt_route_prefix_length,
4592            { "Prefix Length", "icmpv6.rpl.opt.route.prefix_length", FT_UINT8, BASE_DEC, NULL, 0x0,
4593              "The number of leading bits in the Prefix that are valid", HFILL }},
4594         { &hf_icmpv6_rpl_opt_route_flag,
4595            { "Flag","icmpv6.rpl.opt.route.flag", FT_NONE, BASE_NONE, NULL, 0x0,
4596              NULL, HFILL }},
4597         { &hf_icmpv6_rpl_opt_route_pref,
4598            { "Preference","icmpv6.rpl.opt.route.pref", FT_UINT8, BASE_DEC, VALS(nd_flag_router_pref), RPL_OPT_ROUTE_PREFERENCE,
4599              "The Route Preference indicates whether to prefer the router associated with this prefix over others, when multiple identical prefixes (for different routers) have been received", HFILL }},
4600         { &hf_icmpv6_rpl_opt_route_reserved,
4601            { "Reserved","icmpv6.rpl.opt.route.reserved", FT_UINT8, BASE_DEC, NULL, RPL_OPT_ROUTE_RESERVED,
4602              "Reserved (Must be Zero)", HFILL }},
4603         { &hf_icmpv6_rpl_opt_route_lifetime,
4604            { "Route Lifetime", "icmpv6.rpl.opt.route.lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
4605              "The length of time in seconds (relative to the time the packet is sent) that the prefix is valid for route determination", HFILL }},
4606         { &hf_icmpv6_rpl_opt_route_prefix,
4607            { "Prefix", "icmpv6.rpl.opt.route.prefix", FT_IPv6, BASE_NONE, NULL, 0x0,
4608              "Variable-length field containing an IP address or a prefix of an IPv6 address", HFILL }},
4609         { &hf_icmpv6_rpl_opt_config_flag,
4610            { "Flag","icmpv6.rpl.opt.config.flag", FT_NONE, BASE_NONE, NULL, 0x0,
4611              NULL, HFILL }},
4612         { &hf_icmpv6_rpl_opt_config_reserved,
4613            { "Reserved","icmpv6.rpl.opt.config.reserved", FT_UINT8, BASE_DEC, NULL, RPL_OPT_CONFIG_FLAG_RESERVED,
4614              "Must be Zero", HFILL }},
4615         { &hf_icmpv6_rpl_opt_config_auth,
4616            { "Authentication Enabled","icmpv6.rpl.opt.config.auth", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RPL_OPT_CONFIG_FLAG_AUTH,
4617              "One bit flag describing the security mode of the network", HFILL }},
4618         { &hf_icmpv6_rpl_opt_config_pcs,
4619            { "Path Control Size", "icmpv6.rpl.opt.config.pcs", FT_UINT8, BASE_DEC, NULL, RPL_OPT_CONFIG_FLAG_PCS,
4620              "Used to configure the number of bits that may be allocated to the Path Control field", HFILL }},
4621         { &hf_icmpv6_rpl_opt_config_doublings,
4622            { "DIOIntervalDoublings","icmpv6.rpl.opt.config.interval_double", FT_UINT8, BASE_DEC, NULL, 0x0,
4623              "Used to configure Imax of the DIO trickle timer", HFILL }},
4624         { &hf_icmpv6_rpl_opt_config_min_interval,
4625            { "DIOIntervalMin", "icmpv6.rpl.opt.config.interval_min", FT_UINT16, BASE_DEC, NULL, 0x0,
4626              "Used to configure Imin of the DIO trickle timer", HFILL }},
4627         { &hf_icmpv6_rpl_opt_config_redundancy,
4628            { "DIORedundancyConstant", "icmpv6.rpl.opt.config.redundancy", FT_UINT8, BASE_DEC, NULL, 0x0,
4629              "Used to configure k of the DIO trickle timer", HFILL }},
4630         { &hf_icmpv6_rpl_opt_config_rank_incr,
4631            { "MaxRankInc", "icmpv6.rpl.opt.config.max_rank_inc", FT_UINT16, BASE_DEC, NULL, 0x0,
4632              "Used to configure DAGMaxRankIncrease", HFILL }},
4633         { &hf_icmpv6_rpl_opt_config_hop_rank_inc,
4634            { "MinHopRankInc", "icmpv6.rpl.opt.config.min_hop_rank_inc", FT_UINT16, BASE_DEC, NULL, 0x0,
4635               "Used to configure MinHopRankIncrease", HFILL }},
4636         { &hf_icmpv6_rpl_opt_config_ocp,
4637            { "OCP (Objective Code Point)","icmpv6.rpl.opt.config.ocp", FT_UINT16, BASE_DEC, NULL, 0x0,
4638               "The OCP field identifies the OF and is managed by the IANA", HFILL }},
4639         { &hf_icmpv6_rpl_opt_config_rsv,
4640            { "Reserved", "icmpv6.rpl.opt.config.rsv", FT_UINT8, BASE_DEC, NULL, 0x0,
4641               NULL, HFILL }},
4642         { &hf_icmpv6_rpl_opt_config_def_lifetime,
4643            { "Default Lifetime", "icmpv6.rpl.opt.config.def_lifetime", FT_UINT8, BASE_DEC, NULL, 0x0,
4644               "This is the lifetime that is used as default for all RPL routes", HFILL }},
4645         { &hf_icmpv6_rpl_opt_config_lifetime_unit,
4646            { "Lifetime Unit", "icmpv6.rpl.opt.config.lifetime_unit", FT_UINT16, BASE_DEC, NULL, 0x0,
4647               "Provides the unit in seconds that is used to express route lifetimes in RPL", HFILL }},
4648         { &hf_icmpv6_rpl_opt_target_flag,
4649            { "Reserved", "icmpv6.rpl.opt.target.flag", FT_NONE, BASE_NONE, NULL, 0x0,
4650               "Unused field reserved for flags", HFILL }},
4651         { &hf_icmpv6_rpl_opt_target_prefix_length,
4652            { "Target Length", "icmpv6.rpl.opt.target.prefix_length", FT_UINT8, BASE_DEC, NULL, 0x0,
4653               "Number of valid leading bits in the IPv6 Prefix", HFILL }},
4654         { &hf_icmpv6_rpl_opt_target_prefix,
4655            { "Target", "icmpv6.rpl.opt.target.prefix", FT_IPv6, BASE_NONE, NULL, 0x0,
4656               "Identifying an IPv6 destination address, prefix, or multicast group", HFILL }},
4657         { &hf_icmpv6_rpl_opt_transit_flag,
4658            { "Flags", "icmpv6.rpl.opt.transit.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
4659              NULL, HFILL }},
4660          { &hf_icmpv6_rpl_opt_transit_flag_e,
4661            { "External", "icmpv6.rpl.opt.transit.flag.e", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RPL_OPT_TRANSIT_FLAG_E,
4662              "Indicate that the parent router redistributes external targets into the RPL network", HFILL }},
4663          { &hf_icmpv6_rpl_opt_transit_flag_rsv,
4664            { "Reserved", "icmpv6.rpl.opt.transit.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_OPT_TRANSIT_FLAG_RSV,
4665              "Must be Zero", HFILL }},
4666         { &hf_icmpv6_rpl_opt_transit_pathctl,
4667            { "Path Control", "icmpv6.rpl.opt.transit.pathctl", FT_UINT8, BASE_DEC, NULL, 0x0,
4668               "Limits the number of DAO-Parents to which a DAO message advertising connectivity", HFILL }},
4669         { &hf_icmpv6_rpl_opt_transit_pathseq,
4670            { "Path Sequence", "icmpv6.rpl.opt.transit.pathseq", FT_UINT8, BASE_DEC, NULL, 0x0,
4671               "Increments the Path Sequence each time it issues a RPL Target option with updated information", HFILL }},
4672         { &hf_icmpv6_rpl_opt_transit_pathlifetime,
4673            { "Path Lifetime", "icmpv6.rpl.opt.transit.pathlifetime", FT_UINT8, BASE_DEC, NULL, 0x0,
4674               "The length of time in Lifetime Units that the prefix is valid for route determination", HFILL }},
4675         { &hf_icmpv6_rpl_opt_transit_parent,
4676            { "Parent Address", "icmpv6.rpl.opt.transit.parent", FT_IPv6, BASE_NONE, NULL, 0x0,
4677               "IPv6 Address of the DODAG Parent of the node originally issuing the Transit Information Option", HFILL }},
4678         { &hf_icmpv6_rpl_opt_solicited_instance,
4679            { "Instance", "icmpv6.rpl.opt.solicited.instance", FT_UINT8, BASE_DEC, NULL, 0x0,
4680               "Containing the RPLInstanceID that is being solicited when valid", HFILL }},
4681         { &hf_icmpv6_rpl_opt_solicited_flag,
4682            { "Flag", "icmpv6.rpl.opt.solicited.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
4683               NULL, HFILL }},
4684         { &hf_icmpv6_rpl_opt_solicited_flag_v,
4685            { "Version predicate", "icmpv6.rpl.opt.solicited.flag.v", FT_BOOLEAN, 8, TFS(&tfs_true_false), RPL_OPT_SOLICITED_FLAG_V,
4686               "The Version predicate is true if the receiver's DODAGVersionNumber matches the requested Version Number", HFILL }},
4687         { &hf_icmpv6_rpl_opt_solicited_flag_i,
4688            { "InstanceID predicate","icmpv6.rpl.opt.solicited.flag.i", FT_BOOLEAN, 8, TFS(&tfs_true_false), RPL_OPT_SOLICITED_FLAG_I,
4689               "The InstanceID predicate is true when the RPL node's current RPLInstanceID matches the requested RPLInstanceID", HFILL }},
4690         { &hf_icmpv6_rpl_opt_solicited_flag_d,
4691            { "DODAGID predicate", "icmpv6.rpl.opt.solicited.flag.d", FT_BOOLEAN, 8, TFS(&tfs_true_false), RPL_OPT_SOLICITED_FLAG_D,
4692               "The DODAGID predicate is true if the RPL node's parent set has the same DODAGID as the DODAGID field", HFILL }},
4693          { &hf_icmpv6_rpl_opt_solicited_flag_rsv,
4694            { "Reserved", "icmpv6.rpl.opt.solicited.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_OPT_SOLICITED_FLAG_RSV,
4695              "Must be Zero", HFILL }},
4696         { &hf_icmpv6_rpl_opt_solicited_dodagid,
4697            { "DODAGID", "icmpv6.rpl.opt.solicited.dodagid", FT_IPv6, BASE_NONE, NULL, 0x0,
4698               "the DODAGID that is being solicited when valid", HFILL }},
4699         { &hf_icmpv6_rpl_opt_solicited_version,
4700            { "Version", "icmpv6.rpl.opt.solicited.version", FT_UINT8, BASE_DEC, NULL, 0x0,
4701               "the value of  DODAGVersionNumber that is being solicited when valid", HFILL }},
4702
4703         { &hf_icmpv6_rpl_opt_prefix_length,
4704            { "Prefix Length", "icmpv6.rpl.opt.prefix.length", FT_UINT8, BASE_DEC, NULL, 0x0,
4705              "The number of leading bits in the Prefix that are valid", HFILL }},
4706         { &hf_icmpv6_rpl_opt_prefix_flag,
4707            { "Flag", "icmpv6.rpl.opt.prefix.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
4708              NULL, HFILL }},
4709         { &hf_icmpv6_rpl_opt_prefix_flag_l,
4710            { "On Link", "icmpv6.rpl.opt.prefix.flag.l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RPL_OPT_PREFIX_FLAG_L,
4711              "When set, indicates that this prefix can be used for on-link determination", HFILL }},
4712         { &hf_icmpv6_rpl_opt_prefix_flag_a,
4713            { "Auto Address Config","icmpv6.rpl.opt.config.flag.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RPL_OPT_PREFIX_FLAG_A,
4714              "When set indicates that this prefix can be used for stateless address configuration", HFILL }},
4715         { &hf_icmpv6_rpl_opt_prefix_flag_r,
4716            { "Router Address", "icmpv6.rpl.opt.config.flag.r", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RPL_OPT_PREFIX_FLAG_R,
4717              "When set, indicates that the Prefix field contains a complete IPv6 address assigned to the sending router that can be used as parent in a target option", HFILL }},
4718         { &hf_icmpv6_rpl_opt_prefix_flag_rsv,
4719            { "Reserved", "icmpv6.rpl.opt.config.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_OPT_PREFIX_FLAG_RSV,
4720              "Must Be Zero", HFILL }},
4721         { &hf_icmpv6_rpl_opt_prefix_vlifetime,
4722            { "Valid Lifetime", "icmpv6.rpl.opt.prefix.valid_lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
4723              "The length of time in seconds that the prefix is valid for the purpose of on-link determination", HFILL }},
4724         { &hf_icmpv6_rpl_opt_prefix_plifetime,
4725            { "Preferred Lifetime", "icmpv6.rpl.opt.prefix.preferred_lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
4726              "The length of time in seconds that addresses generated from the prefix via stateless address autoconfiguration remain preferred", HFILL }},
4727         { &hf_icmpv6_rpl_opt_prefix,
4728            { "Destination Prefix", "icmpv6.rpl.opt.prefix", FT_IPv6, BASE_NONE, NULL, 0x0,
4729              "An IPv6 address or a prefix of an IPv6 address", HFILL }},
4730         { &hf_icmpv6_rpl_opt_targetdesc,
4731            { "Descriptor", "icmpv6.rpl.opt.targetdesc.descriptor", FT_UINT32, BASE_HEX, NULL, 0x0,
4732              "Opaque Data", HFILL }},
4733
4734         /* 6lowpan-nd: Neighbour Discovery for 6LoWPAN Networks */
4735         { &hf_icmpv6_da_status,
4736           { "Status", "icmpv6.6lowpannd.da.status", FT_UINT8, BASE_DEC, VALS(nd_opt_6lowpannd_status_val), 0x0,
4737             "Indicates the status of a registration in the DAC", HFILL }},
4738         { &hf_icmpv6_da_rsv,
4739           { "Reserved", "icmpv6.6lowpannd.da.rsv", FT_UINT8, BASE_DEC, NULL, 0x0,
4740             "Must be Zero", HFILL }},
4741         { &hf_icmpv6_da_lifetime,
4742           { "Lifetime", "icmpv6.6lowpannd.da.lifetime", FT_UINT16, BASE_DEC, NULL, 0x0,
4743             "The amount of time in a unit of 60 seconds that the router should retain the Neighbor Cache entry for the sender of the NS that includes this option", HFILL }},
4744         { &hf_icmpv6_da_eui64,
4745           { "EUI-64", "icmpv6.6lowpannd.da.eui64", FT_EUI64, BASE_NONE, NULL, 0x0,
4746             "This field is used to uniquely identify the interface of the registered address by including the EUI-64 identifier", HFILL }},
4747         { &hf_icmpv6_da_raddr,
4748           { "Registered Address", "icmpv6.6lowpannd.da.reg_addr", FT_IPv6, BASE_NONE, NULL, 0x0,
4749             "Carries the host address, which was contained in the IPv6 Source field in the NS that contained the ARO option sent by the host", HFILL }},
4750
4751         /* Conversation-related [generated] header fields */
4752         { &hf_icmpv6_resp_in,
4753             { "Response In", "icmpv6.resp_in", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
4754               "The response to this request is in this frame", HFILL }},
4755         { &hf_icmpv6_resp_to,
4756             { "Response To", "icmpv6.resp_to", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
4757               "This is the response to the request in this frame", HFILL }},
4758         { &hf_icmpv6_resptime,
4759             { "Response Time", "icmpv6.resptime", FT_DOUBLE, BASE_NONE, NULL, 0x0,
4760               "The time between the request and the response, in ms.", HFILL }}
4761     };
4762
4763     static gint *ett[] = {
4764         &ett_icmpv6,
4765         &ett_icmpv6_opt,
4766         &ett_icmpv6_mar,
4767         &ett_icmpv6_flag_prefix,
4768         &ett_icmpv6_flag_map,
4769         &ett_icmpv6_flag_route_info,
4770         &ett_icmpv6_flag_6lowpan,
4771         &ett_icmpv6_flag_efo,
4772         &ett_icmpv6_rpl_opt,
4773         &ett_icmpv6_rpl_flag_routing,
4774         &ett_icmpv6_rpl_flag_config,
4775         &ett_icmpv6_rpl_flag_transit,
4776         &ett_icmpv6_rpl_flag_solicited,
4777         &ett_icmpv6_rpl_flag_prefix,
4778         &ett_icmpv6_flag_ni,
4779         &ett_icmpv6_flag_rr,
4780         &ett_icmpv6_rr_mp,
4781         &ett_icmpv6_rr_up,
4782         &ett_icmpv6_rr_up_flag_mask,
4783         &ett_icmpv6_rr_up_flag_ra,
4784         &ett_icmpv6_rr_up_flag,
4785         &ett_icmpv6_rr_rm,
4786         &ett_icmpv6_rr_rm_flag,
4787         &ett_icmpv6_flag_mld,
4788         &ett_icmpv6_flag_ra,
4789         &ett_icmpv6_flag_na,
4790         &ett_icmpv6_flag_mip6,
4791         &ett_icmpv6_flag_fmip6,
4792         &ett_icmpv6_flag_secure,
4793         &ett_icmpv6_flag_rpl_dio,
4794         &ett_icmpv6_flag_rpl_dao,
4795         &ett_icmpv6_flag_rpl_daoack,
4796         &ett_icmpv6_flag_rpl_cc,
4797         &ett_icmpv6_opt_name,
4798         &ett_icmpv6_cga_param_name
4799     };
4800
4801     proto_icmpv6 = proto_register_protocol("Internet Control Message Protocol v6",
4802                                            "ICMPv6", "icmpv6");
4803     proto_register_field_array(proto_icmpv6, hf, array_length(hf));
4804     proto_register_subtree_array(ett, array_length(ett));
4805
4806     new_register_dissector("icmpv6", dissect_icmpv6, proto_icmpv6);
4807     icmpv6_tap = register_tap("icmpv6");
4808 }
4809
4810 void
4811 proto_reg_handoff_icmpv6(void)
4812 {
4813     dissector_handle_t icmpv6_handle;
4814
4815     icmpv6_handle = new_create_dissector_handle(dissect_icmpv6, proto_icmpv6);
4816     dissector_add_uint("ip.proto", IP_PROTO_ICMPV6, icmpv6_handle);
4817
4818     /*
4819      * Get a handle for the IPv6 dissector.
4820      */
4821     ipv6_handle = find_dissector("ipv6");
4822     data_handle = find_dissector("data");
4823 }
4824
4825 /*
4826  * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
4827  *
4828  * Local variables:
4829  * c-basic-offset: 4
4830  * tab-width: 8
4831  * indent-tabs-mode: nil
4832  * End:
4833  *
4834  * vi: set shiftwidth=4 tabstop=8 expandtab:
4835  * :indentSize=4:tabSize=8:noTabs=true:
4836  */