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wireshark/epan/dissectors/packet-icmpv6.c
Jeff Morriss 74e8613fe1 Don't check the checksum if we're encapsulated in an (ICMP) error packet. 
This is the case when an ICMP echo is returned (e.g., because it's too big).

This effectively applies SVN rev 36193 to ICMPv6.

Bug: 10620
Change-Id: I29aeaabc2467c818714df448e39b3a93027c8961
Reviewed-on: https://code.wireshark.org/review/5030
Petri-Dish: Jeff Morriss <jeff.morriss.ws@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
2014-11-01 15:51:58 +00:00

4995 lines
246 KiB
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/* packet-icmpv6.c
* Routines for ICMPv6 packet disassembly
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* MobileIPv6 support added by Tomislav Borosa <tomislav.borosa@siemens.hr>
* Copyright 2006, Nicolas DICHTEL - 6WIND - <nicolas.dichtel@6wind.com>
*
* HMIPv6 support added by Martti Kuparinen <martti.kuparinen@iki.fi>
*
* FMIPv6 support added by Martin Andre <andre@clarinet.u-strasbg.fr>
*
* RPL support added by Colin O'Flynn & Owen Kirby.
*
* Enhance ICMPv6 dissector by Alexis La Goutte
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <glib.h>
#include <epan/packet.h>
#include <epan/in_cksum.h>
#include <epan/addr_resolv.h>
#include <epan/ipproto.h>
#include <epan/asn1.h>
#include <epan/strutil.h>
#include <epan/expert.h>
#include <epan/conversation.h>
#include <epan/wmem/wmem.h>
#include <epan/tap.h>
#include "packet-ber.h"
#include "packet-dns.h"
#include "packet-x509af.h"
#include "packet-x509if.h"
#include "packet-icmp.h" /* same transaction_t used both both v4 and v6 */
#include "packet-ieee802154.h"
#include "packet-6lowpan.h"
#include "packet-ip.h"
void proto_register_icmpv6(void);
void proto_reg_handoff_icmpv6(void);
/*
* The information used comes from:
* RFC 1885/2463/4443: Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification
* RFC 2461/4861: Neighbor Discovery for IP Version 6 (IPv6)
* RFC 2491: IPv6 over Non-Broadcast Multiple Access (NBMA) networks
* RFC 2710: Multicast Listener Discovery for IPv6
* RFC 2894: Router Renumbering for IPv6
* RFC 3122: Extensions to IPv6 Neighbor Discovery for Inverse Discovery Specification
* RFC 3775/6275: Mobility Support in IPv6
* RFC 3810: Multicast Listener Discovery Version 2 (MLDv2) for IPv6
* RFC 3971: SEcure Neighbor Discovery (SEND)
* RFC 4065: Instructions for Seamoby and Experimental Mobility Protocol IANA Allocations
* RFC 4068/5268/5568: Fast Handovers for Mobile IPv6 (Mobile IPv6 Fast Handovers)
* RFC 4140/5380: Hierarchical Mobile IPv6 Mobility Management (HMIPv6)
* RFC 4191: Default Router Preferences and More-Specific Routes
* RFC 4286: Multicast Router Discovery
* RFC 4620: IPv6 Node Information Queries
* RFC 5006/6106: IPv6 Router Advertisement Options for DNS Configuration
* RFC 5075/5175: IPv6 Router Advertisement Flags Option
* RFC 5269: Distributing a Symmetric Fast Mobile IPv6 (FMIPv6) Handover Key Using SEcure Neighbor Discovery (SEND)
* RFC 5271: Mobile IPv6 Fast Handovers for 3G CDMA Networks
* RFC 6275: Mobility Support in IPv6
* RFC 6495: Subject Key Identifier (SKI) SEND Name Type fields
* RFC 6496: Secure Proxy ND Support for SEND
* RFC 6550: RPL: IPv6 Routing Protocol for Low power and Lossy Networks
* RFC 6554: An IPv6 Routing Header for Source Routes with RPL
* RFC 6743: ICMP Locator Update message for ILNPv6
* RFC 6775: Neighbor Discovery Optimization for Low Power and Lossy Networks (6LoWPAN)
* RFC 7112: Implications of Oversized IPv6 Header Chains
* http://www.iana.org/assignments/icmpv6-parameters (last updated 2014-01-30)
*/
static int proto_icmpv6 = -1;
static int hf_icmpv6_type = -1;
static int hf_icmpv6_code = -1;
static int hf_icmpv6_checksum = -1;
static int hf_icmpv6_checksum_bad = -1;
static int hf_icmpv6_reserved = -1;
static int hf_icmpv6_data = -1;
static int hf_icmpv6_unknown_data = -1;
static int hf_icmpv6_mtu = -1;
static int hf_icmpv6_pointer = -1;
static int hf_icmpv6_echo_identifier = -1;
static int hf_icmpv6_echo_sequence_number = -1;
static int hf_icmpv6_nonce = -1;
/* RFC 2461/4861 : Neighbor Discovery for IP version 6 (IPv6) */
static int hf_icmpv6_nd_ra_cur_hop_limit = -1;
static int hf_icmpv6_nd_ra_flag = -1;
static int hf_icmpv6_nd_ra_flag_m = -1;
static int hf_icmpv6_nd_ra_flag_o = -1;
static int hf_icmpv6_nd_ra_flag_h = -1;
static int hf_icmpv6_nd_ra_flag_prf = -1;
static int hf_icmpv6_nd_ra_flag_p = -1;
static int hf_icmpv6_nd_ra_flag_rsv = -1;
static int hf_icmpv6_nd_ra_router_lifetime = -1;
static int hf_icmpv6_nd_ra_reachable_time = -1;
static int hf_icmpv6_nd_ra_retrans_timer = -1;
static int hf_icmpv6_nd_ns_target_address = -1;
static int hf_icmpv6_nd_na_flag = -1;
static int hf_icmpv6_nd_na_flag_r = -1;
static int hf_icmpv6_nd_na_flag_s = -1;
static int hf_icmpv6_nd_na_flag_o = -1;
static int hf_icmpv6_nd_na_flag_rsv = -1;
static int hf_icmpv6_nd_na_target_address = -1;
static int hf_icmpv6_nd_rd_target_address = -1;
static int hf_icmpv6_nd_rd_destination_address = -1;
/* ND Options */
static int hf_icmpv6_opt = -1;
static int hf_icmpv6_opt_type = -1;
static int hf_icmpv6_opt_length = -1;
static int hf_icmpv6_opt_linkaddr_mac = -1;
static int hf_icmpv6_opt_src_linkaddr_mac = -1;
static int hf_icmpv6_opt_target_linkaddr_mac = -1;
static int hf_icmpv6_opt_linkaddr = -1;
static int hf_icmpv6_opt_src_linkaddr = -1;
static int hf_icmpv6_opt_target_linkaddr = -1;
static int hf_icmpv6_opt_linkaddr_eui64 = -1;
static int hf_icmpv6_opt_src_linkaddr_eui64 = -1;
static int hf_icmpv6_opt_target_linkaddr_eui64 = -1;
static int hf_icmpv6_opt_prefix_len = -1;
static int hf_icmpv6_opt_prefix_flag = -1;
static int hf_icmpv6_opt_prefix_flag_l = -1;
static int hf_icmpv6_opt_prefix_flag_a = -1;
static int hf_icmpv6_opt_prefix_flag_r = -1;
static int hf_icmpv6_opt_prefix_flag_reserved = -1;
static int hf_icmpv6_opt_prefix_valid_lifetime = -1;
static int hf_icmpv6_opt_prefix_preferred_lifetime = -1;
static int hf_icmpv6_opt_prefix = -1;
static int hf_icmpv6_opt_naack_option_code = -1;
static int hf_icmpv6_opt_naack_status = -1;
static int hf_icmpv6_opt_naack_supplied_ncoa = -1;
static int hf_icmpv6_opt_cga_pad_len = -1;
static int hf_icmpv6_opt_cga = -1;
static int hf_icmpv6_opt_cga_modifier = -1;
static int hf_icmpv6_opt_cga_subnet_prefix = -1;
static int hf_icmpv6_opt_cga_count = -1;
static int hf_icmpv6_opt_cga_ext_type = -1;
static int hf_icmpv6_opt_cga_ext_length = -1;
static int hf_icmpv6_opt_cga_ext_data = -1;
static int hf_icmpv6_opt_rsa_key_hash = -1;
static int hf_icmpv6_opt_digital_signature_padding = -1;
static int hf_icmpv6_opt_ps_key_hash = -1;
static int hf_icmpv6_opt_timestamp = -1;
static int hf_icmpv6_opt_nonce = -1;
static int hf_icmpv6_opt_certificate_padding = -1;
static int hf_icmpv6_opt_ipa_option_code = -1;
static int hf_icmpv6_opt_ipa_prefix_len = -1;
static int hf_icmpv6_opt_ipa_ipv6_address = -1;
static int hf_icmpv6_opt_nrpi_option_code = -1;
static int hf_icmpv6_opt_nrpi_prefix_len = -1;
static int hf_icmpv6_opt_nrpi_prefix = -1;
static int hf_icmpv6_opt_lla_option_code = -1;
static int hf_icmpv6_opt_lla_bytes = -1;
static int hf_icmpv6_opt_map_dist = -1;
static int hf_icmpv6_opt_map_pref = -1;
static int hf_icmpv6_opt_map_flag = -1;
static int hf_icmpv6_opt_map_flag_r = -1;
static int hf_icmpv6_opt_map_flag_reserved = -1;
static int hf_icmpv6_opt_map_valid_lifetime = -1;
static int hf_icmpv6_opt_map_global_address = -1;
static int hf_icmpv6_opt_route_info_flag = -1;
static int hf_icmpv6_opt_route_info_flag_route_preference = -1;
static int hf_icmpv6_opt_route_info_flag_reserved = -1;
static int hf_icmpv6_opt_route_lifetime = -1;
static int hf_icmpv6_opt_name_type = -1;
static int hf_icmpv6_opt_name_x501 = -1;
static int hf_icmpv6_opt_name_fqdn = -1;
static int hf_icmpv6_opt_cert_type = -1;
static int hf_icmpv6_x509if_Name = -1;
static int hf_icmpv6_x509af_Certificate = -1;
static int hf_icmpv6_opt_redirected_packet = -1;
static int hf_icmpv6_opt_mtu = -1;
static int hf_icmpv6_opt_nbma_shortcut_limit = -1;
static int hf_icmpv6_opt_advertisement_interval = -1;
static int hf_icmpv6_opt_home_agent_preference = -1;
static int hf_icmpv6_opt_home_agent_lifetime = -1;
static int hf_icmpv6_opt_ipv6_address = -1;
static int hf_icmpv6_opt_reserved = -1;
static int hf_icmpv6_opt_padding = -1;
static int hf_icmpv6_opt_rdnss_lifetime = -1;
static int hf_icmpv6_opt_rdnss = -1;
static int hf_icmpv6_opt_efo = -1;
static int hf_icmpv6_opt_efo_m = -1;
static int hf_icmpv6_opt_efo_o = -1;
static int hf_icmpv6_opt_efo_h = -1;
static int hf_icmpv6_opt_efo_prf = -1;
static int hf_icmpv6_opt_efo_p = -1;
static int hf_icmpv6_opt_efo_rsv = -1;
static int hf_icmpv6_opt_hkr_pad_length = -1;
static int hf_icmpv6_opt_hkr_at = -1;
static int hf_icmpv6_opt_hkr_reserved = -1;
static int hf_icmpv6_opt_hkr_encryption_public_key = -1;
static int hf_icmpv6_opt_hkr_padding = -1;
static int hf_icmpv6_opt_hkr_lifetime = -1;
static int hf_icmpv6_opt_hkr_encrypted_handover_key = -1;
static int hf_icmpv6_opt_hai_option_code = -1;
static int hf_icmpv6_opt_hai_length = -1;
static int hf_icmpv6_opt_hai_value = -1;
static int hf_icmpv6_opt_mn_option_code = -1;
static int hf_icmpv6_opt_mn_length = -1;
static int hf_icmpv6_opt_mn_value = -1;
static int hf_icmpv6_opt_dnssl_lifetime = -1;
static int hf_icmpv6_opt_dnssl = -1;
static int hf_icmpv6_opt_aro_status = -1;
static int hf_icmpv6_opt_aro_registration_lifetime = -1;
static int hf_icmpv6_opt_aro_eui64 = -1;
static int hf_icmpv6_opt_6co_context_length = -1;
static int hf_icmpv6_opt_6co_flag = -1;
static int hf_icmpv6_opt_6co_flag_c = -1;
static int hf_icmpv6_opt_6co_flag_cid = -1;
static int hf_icmpv6_opt_6co_flag_reserved = -1;
static int hf_icmpv6_opt_6co_valid_lifetime = -1;
static int hf_icmpv6_opt_6co_context_prefix = -1;
static int hf_icmpv6_opt_abro_version_low = -1;
static int hf_icmpv6_opt_abro_version_high = -1;
static int hf_icmpv6_opt_abro_valid_lifetime = -1;
static int hf_icmpv6_opt_abro_6lbr_address = -1;
/* RFC 2710: Multicast Listener Discovery for IPv6 */
static int hf_icmpv6_mld_mrd = -1;
static int hf_icmpv6_mld_multicast_address = -1;
/* RFC 2894: Router Renumbering for IPv6 */
static int hf_icmpv6_rr_sequencenumber = -1;
static int hf_icmpv6_rr_segmentnumber = -1;
static int hf_icmpv6_rr_flag = -1;
static int hf_icmpv6_rr_flag_t = -1;
static int hf_icmpv6_rr_flag_r = -1;
static int hf_icmpv6_rr_flag_a = -1;
static int hf_icmpv6_rr_flag_s = -1;
static int hf_icmpv6_rr_flag_p = -1;
static int hf_icmpv6_rr_flag_rsv = -1;
static int hf_icmpv6_rr_maxdelay = -1;
static int hf_icmpv6_rr_pco_mp_part = -1;
static int hf_icmpv6_rr_pco_mp_opcode = -1;
static int hf_icmpv6_rr_pco_mp_oplength = -1;
static int hf_icmpv6_rr_pco_mp_ordinal = -1;
static int hf_icmpv6_rr_pco_mp_matchlen = -1;
static int hf_icmpv6_rr_pco_mp_minlen = -1;
static int hf_icmpv6_rr_pco_mp_maxlen = -1;
static int hf_icmpv6_rr_pco_mp_matchprefix = -1;
static int hf_icmpv6_rr_pco_up_part = -1;
static int hf_icmpv6_rr_pco_up_uselen = -1;
static int hf_icmpv6_rr_pco_up_keeplen = -1;
static int hf_icmpv6_rr_pco_up_flagmask = -1;
static int hf_icmpv6_rr_pco_up_flagmask_l = -1;
static int hf_icmpv6_rr_pco_up_flagmask_a = -1;
static int hf_icmpv6_rr_pco_up_flagmask_reserved = -1;
static int hf_icmpv6_rr_pco_up_raflags = -1;
static int hf_icmpv6_rr_pco_up_raflags_l = -1;
static int hf_icmpv6_rr_pco_up_raflags_a = -1;
static int hf_icmpv6_rr_pco_up_raflags_reserved = -1;
static int hf_icmpv6_rr_pco_up_validlifetime = -1;
static int hf_icmpv6_rr_pco_up_preferredlifetime = -1;
static int hf_icmpv6_rr_pco_up_flag = -1;
static int hf_icmpv6_rr_pco_up_flag_v = -1;
static int hf_icmpv6_rr_pco_up_flag_p = -1;
static int hf_icmpv6_rr_pco_up_flag_reserved = -1;
static int hf_icmpv6_rr_pco_up_useprefix = -1;
static int hf_icmpv6_rr_rm = -1;
static int hf_icmpv6_rr_rm_flag = -1;
static int hf_icmpv6_rr_rm_flag_b = -1;
static int hf_icmpv6_rr_rm_flag_f = -1;
static int hf_icmpv6_rr_rm_flag_reserved = -1;
static int hf_icmpv6_rr_rm_ordinal = -1;
static int hf_icmpv6_rr_rm_matchedlen = -1;
static int hf_icmpv6_rr_rm_interfaceindex = -1;
static int hf_icmpv6_rr_rm_matchedprefix = -1;
/* RFC 3810: Multicast Listener Discovery Version 2 (MLDv2) for IPv6 */
static int hf_icmpv6_mld_mrc = -1;
static int hf_icmpv6_mld_flag = -1;
static int hf_icmpv6_mld_flag_s = -1;
static int hf_icmpv6_mld_flag_qrv = -1;
static int hf_icmpv6_mld_flag_rsv = -1;
static int hf_icmpv6_mld_qqi = -1;
static int hf_icmpv6_mld_nb_sources = -1;
static int hf_icmpv6_mld_source_address = -1;
static int hf_icmpv6_mldr_nb_mcast_records = -1;
static int hf_icmpv6_mldr_mar = -1;
static int hf_icmpv6_mldr_mar_record_type = -1;
static int hf_icmpv6_mldr_mar_aux_data_len = -1;
static int hf_icmpv6_mldr_mar_nb_sources = -1;
static int hf_icmpv6_mldr_mar_multicast_address = -1;
static int hf_icmpv6_mldr_mar_source_address = -1;
static int hf_icmpv6_mldr_mar_auxiliary_data = -1;
/* RFC3775/6275: Mobility Support in IPv6 */
static int hf_icmpv6_mip6_identifier = -1;
static int hf_icmpv6_mip6_home_agent_address = -1;
static int hf_icmpv6_mip6_flag = -1;
static int hf_icmpv6_mip6_flag_m = -1;
static int hf_icmpv6_mip6_flag_o = -1;
static int hf_icmpv6_mip6_flag_rsv = -1;
/* RFC3971: SEcure Neighbor Discovery (SEND) */
static int hf_icmpv6_send_identifier = -1;
static int hf_icmpv6_send_all_components = -1;
static int hf_icmpv6_send_component = -1;
/* RFC 4068/5268/5568: Fast Handovers for Mobile IPv6 ( Mobile IPv6 Fast Handovers ) */
static int hf_icmpv6_fmip6_subtype = -1;
static int hf_icmpv6_fmip6_hi_flag = -1;
static int hf_icmpv6_fmip6_hi_flag_s = -1;
static int hf_icmpv6_fmip6_hi_flag_u = -1;
static int hf_icmpv6_fmip6_hi_flag_reserved = -1;
static int hf_icmpv6_fmip6_identifier = -1;
/* RFC 4286: Multicast Router Discovery */
static int hf_icmpv6_mcast_ra_query_interval = -1;
static int hf_icmpv6_mcast_ra_robustness_variable = -1;
/* RFC 4620: IPv6 Node Information Queries */
static int hf_icmpv6_ni_qtype = -1;
static int hf_icmpv6_ni_flag = -1;
static int hf_icmpv6_ni_flag_g = -1;
static int hf_icmpv6_ni_flag_s = -1;
static int hf_icmpv6_ni_flag_l = -1;
static int hf_icmpv6_ni_flag_c = -1;
static int hf_icmpv6_ni_flag_a = -1;
static int hf_icmpv6_ni_flag_t = -1;
static int hf_icmpv6_ni_flag_rsv = -1;
static int hf_icmpv6_ni_nonce = -1;
static int hf_icmpv6_ni_query_subject_ipv6 = -1;
static int hf_icmpv6_ni_query_subject_fqdn = -1;
static int hf_icmpv6_ni_query_subject_ipv4 = -1;
static int hf_icmpv6_ni_reply_node_ttl = -1;
static int hf_icmpv6_ni_reply_node_name = -1;
static int hf_icmpv6_ni_reply_node_address = -1;
static int hf_icmpv6_ni_reply_ipv4_address = -1;
/* RPL: RFC 6550 : Routing over Low-Power and Lossy Networks. */
static int hf_icmpv6_rpl_dis_flag = -1;
static int hf_icmpv6_rpl_dio_instance = -1;
static int hf_icmpv6_rpl_dio_version = -1;
static int hf_icmpv6_rpl_dio_rank = -1;
static int hf_icmpv6_rpl_dio_flag = -1;
static int hf_icmpv6_rpl_dio_flag_g = -1;
static int hf_icmpv6_rpl_dio_flag_0 = -1;
static int hf_icmpv6_rpl_dio_flag_mop = -1;
static int hf_icmpv6_rpl_dio_flag_prf = -1;
static int hf_icmpv6_rpl_dio_dtsn = -1;
static int hf_icmpv6_rpl_dio_dagid = -1;
static int hf_icmpv6_rpl_dao_instance = -1;
static int hf_icmpv6_rpl_dao_flag = -1;
static int hf_icmpv6_rpl_dao_flag_k = -1;
static int hf_icmpv6_rpl_dao_flag_d = -1;
static int hf_icmpv6_rpl_dao_flag_rsv = -1;
static int hf_icmpv6_rpl_dao_sequence = -1;
static int hf_icmpv6_rpl_dao_dodagid = -1;
static int hf_icmpv6_rpl_daoack_instance = -1;
static int hf_icmpv6_rpl_daoack_flag = -1;
static int hf_icmpv6_rpl_daoack_flag_d = -1;
static int hf_icmpv6_rpl_daoack_flag_rsv = -1;
static int hf_icmpv6_rpl_daoack_sequence = -1;
static int hf_icmpv6_rpl_daoack_status = -1;
static int hf_icmpv6_rpl_daoack_dodagid = -1;
static int hf_icmpv6_rpl_cc_instance = -1;
static int hf_icmpv6_rpl_cc_flag = -1;
static int hf_icmpv6_rpl_cc_flag_r = -1;
static int hf_icmpv6_rpl_cc_flag_rsv = -1;
static int hf_icmpv6_rpl_cc_nonce = -1;
static int hf_icmpv6_rpl_cc_dodagid = -1;
static int hf_icmpv6_rpl_cc_destination_counter = -1;
static int hf_icmpv6_rpl_secure_flag = -1;
static int hf_icmpv6_rpl_secure_flag_t = -1;
static int hf_icmpv6_rpl_secure_flag_rsv = -1;
static int hf_icmpv6_rpl_secure_algorithm = -1;
static int hf_icmpv6_rpl_secure_algorithm_encryption = -1;
static int hf_icmpv6_rpl_secure_algorithm_signature = -1;
static int hf_icmpv6_rpl_secure_kim = -1;
static int hf_icmpv6_rpl_secure_lvl = -1;
static int hf_icmpv6_rpl_secure_rsv = -1;
static int hf_icmpv6_rpl_secure_counter = -1;
static int hf_icmpv6_rpl_secure_key_source = -1;
static int hf_icmpv6_rpl_secure_key_index = -1;
static int hf_icmpv6_rpl_opt = -1;
static int hf_icmpv6_rpl_opt_type = -1;
static int hf_icmpv6_rpl_opt_length = -1;
static int hf_icmpv6_rpl_opt_reserved = -1;
static int hf_icmpv6_rpl_opt_padn = -1;
static int hf_icmpv6_rpl_opt_route_prefix_length = -1;
static int hf_icmpv6_rpl_opt_route_flag = -1;
static int hf_icmpv6_rpl_opt_route_pref = -1;
static int hf_icmpv6_rpl_opt_route_reserved = -1;
static int hf_icmpv6_rpl_opt_route_lifetime = -1;
static int hf_icmpv6_rpl_opt_route_prefix = -1;
static int hf_icmpv6_rpl_opt_config_flag = -1;
static int hf_icmpv6_rpl_opt_config_reserved = -1;
static int hf_icmpv6_rpl_opt_config_auth = -1;
static int hf_icmpv6_rpl_opt_config_pcs = -1;
static int hf_icmpv6_rpl_opt_config_doublings = -1;
static int hf_icmpv6_rpl_opt_config_min_interval = -1;
static int hf_icmpv6_rpl_opt_config_redundancy = -1;
static int hf_icmpv6_rpl_opt_config_rank_incr = -1;
static int hf_icmpv6_rpl_opt_config_hop_rank_inc = -1;
static int hf_icmpv6_rpl_opt_config_ocp = -1;
static int hf_icmpv6_rpl_opt_config_rsv = -1;
static int hf_icmpv6_rpl_opt_config_def_lifetime = -1;
static int hf_icmpv6_rpl_opt_config_lifetime_unit = -1;
static int hf_icmpv6_rpl_opt_target_flag = -1;
static int hf_icmpv6_rpl_opt_target_prefix_length = -1;
static int hf_icmpv6_rpl_opt_target_prefix = -1;
static int hf_icmpv6_rpl_opt_transit_flag = -1;
static int hf_icmpv6_rpl_opt_transit_flag_e = -1;
static int hf_icmpv6_rpl_opt_transit_flag_rsv = -1;
static int hf_icmpv6_rpl_opt_transit_pathseq = -1;
static int hf_icmpv6_rpl_opt_transit_pathctl = -1;
static int hf_icmpv6_rpl_opt_transit_pathlifetime = -1;
static int hf_icmpv6_rpl_opt_transit_parent = -1;
static int hf_icmpv6_rpl_opt_solicited_instance = -1;
static int hf_icmpv6_rpl_opt_solicited_flag = -1;
static int hf_icmpv6_rpl_opt_solicited_flag_v = -1;
static int hf_icmpv6_rpl_opt_solicited_flag_i = -1;
static int hf_icmpv6_rpl_opt_solicited_flag_d = -1;
static int hf_icmpv6_rpl_opt_solicited_flag_rsv = -1;
static int hf_icmpv6_rpl_opt_solicited_dodagid = -1;
static int hf_icmpv6_rpl_opt_solicited_version = -1;
static int hf_icmpv6_rpl_opt_prefix = -1;
static int hf_icmpv6_rpl_opt_prefix_flag = -1;
static int hf_icmpv6_rpl_opt_prefix_flag_l = -1;
static int hf_icmpv6_rpl_opt_prefix_flag_a = -1;
static int hf_icmpv6_rpl_opt_prefix_flag_r = -1;
static int hf_icmpv6_rpl_opt_prefix_flag_rsv = -1;
static int hf_icmpv6_rpl_opt_prefix_vlifetime = -1;
static int hf_icmpv6_rpl_opt_prefix_plifetime = -1;
static int hf_icmpv6_rpl_opt_prefix_length = -1;
static int hf_icmpv6_rpl_opt_targetdesc = -1;
static int hf_icmpv6_da_status = -1;
static int hf_icmpv6_da_rsv = -1;
static int hf_icmpv6_da_lifetime = -1;
static int hf_icmpv6_da_eui64 = -1;
static int hf_icmpv6_da_raddr = -1;
static int icmpv6_tap = -1;
/* Conversation related data */
static int hf_icmpv6_resp_in = -1;
static int hf_icmpv6_resp_to = -1;
static int hf_icmpv6_no_resp = -1;
static int hf_icmpv6_resptime = -1;
typedef struct _icmpv6_conv_info_t {
wmem_tree_t *unmatched_pdus;
wmem_tree_t *matched_pdus;
} icmpv6_conv_info_t;
static icmp_transaction_t *transaction_start(packet_info *pinfo, proto_tree *tree, guint32 *key);
static icmp_transaction_t *transaction_end(packet_info *pinfo, proto_tree *tree, guint32 *key);
static gint ett_icmpv6 = -1;
static gint ett_icmpv6_opt = -1;
static gint ett_icmpv6_mar = -1;
static gint ett_icmpv6_flag_prefix = -1;
static gint ett_icmpv6_flag_map = -1;
static gint ett_icmpv6_flag_route_info = -1;
static gint ett_icmpv6_flag_6lowpan = -1;
static gint ett_icmpv6_flag_efo = -1;
static gint ett_icmpv6_rpl_opt = -1;
static gint ett_icmpv6_rpl_flag_routing = -1;
static gint ett_icmpv6_rpl_flag_config = -1;
static gint ett_icmpv6_rpl_flag_transit = -1;
static gint ett_icmpv6_rpl_flag_solicited = -1;
static gint ett_icmpv6_rpl_flag_prefix = -1;
static gint ett_icmpv6_flag_ni = -1;
static gint ett_icmpv6_flag_rr = -1;
static gint ett_icmpv6_rr_mp = -1;
static gint ett_icmpv6_rr_up = -1;
static gint ett_icmpv6_rr_up_flag_mask = -1;
static gint ett_icmpv6_rr_up_flag_ra = -1;
static gint ett_icmpv6_rr_up_flag = -1;
static gint ett_icmpv6_rr_rm = -1;
static gint ett_icmpv6_rr_rm_flag = -1;
static gint ett_icmpv6_flag_mld = -1;
static gint ett_icmpv6_flag_ra = -1;
static gint ett_icmpv6_flag_na = -1;
static gint ett_icmpv6_flag_mip6 = -1;
static gint ett_icmpv6_flag_fmip6 = -1;
static gint ett_icmpv6_flag_secure = -1;
static gint ett_icmpv6_flag_rpl_dio = -1;
static gint ett_icmpv6_flag_rpl_dao = -1;
static gint ett_icmpv6_flag_rpl_daoack = -1;
static gint ett_icmpv6_flag_rpl_cc = -1;
static gint ett_icmpv6_opt_name = -1;
static gint ett_icmpv6_cga_param_name = -1;
static expert_field ei_icmpv6_invalid_option_length = EI_INIT;
static expert_field ei_icmpv6_undecoded_option = EI_INIT;
static expert_field ei_icmpv6_unknown_data = EI_INIT;
static expert_field ei_icmpv6_undecoded_rpl_option = EI_INIT;
static expert_field ei_icmpv6_undecoded_type = EI_INIT;
static expert_field ei_icmpv6_rr_pco_mp_matchlen = EI_INIT;
static expert_field ei_icmpv6_rr_pco_mp_matchedlen = EI_INIT;
static expert_field ei_icmpv6_checksum = EI_INIT;
static expert_field ei_icmpv6_resp_not_found = EI_INIT;
static dissector_handle_t icmpv6_handle;
static dissector_handle_t ipv6_handle;
static dissector_handle_t data_handle;
#define ICMP6_DST_UNREACH 1
#define ICMP6_PACKET_TOO_BIG 2
#define ICMP6_TIME_EXCEEDED 3
#define ICMP6_PARAM_PROB 4
#define ICMP6_ECHO_REQUEST 128
#define ICMP6_ECHO_REPLY 129
#define ICMP6_MEMBERSHIP_QUERY 130
#define ICMP6_MEMBERSHIP_REPORT 131
#define ICMP6_MEMBERSHIP_REDUCTION 132
#define ICMP6_ND_ROUTER_SOLICIT 133
#define ICMP6_ND_ROUTER_ADVERT 134
#define ICMP6_ND_NEIGHBOR_SOLICIT 135
#define ICMP6_ND_NEIGHBOR_ADVERT 136
#define ICMP6_ND_REDIRECT 137
#define ICMP6_ROUTER_RENUMBERING 138
#define ICMP6_NI_QUERY 139
#define ICMP6_NI_REPLY 140
#define ICMP6_IND_SOLICIT 141
#define ICMP6_IND_ADVERT 142
#define ICMP6_MLDV2_REPORT 143
#define ICMP6_MIP6_DHAAD_REQUEST 144
#define ICMP6_MIP6_DHAAD_REPLY 145
#define ICMP6_MIP6_MPS 146
#define ICMP6_MIP6_MPA 147
#define ICMP6_CERT_PATH_SOL 148
#define ICMP6_CERT_PATH_AD 149
#define ICMP6_EXPERIMENTAL_MOBILITY 150
#define ICMP6_MCAST_ROUTER_ADVERT 151
#define ICMP6_MCAST_ROUTER_SOLICIT 152
#define ICMP6_MCAST_ROUTER_TERM 153
#define ICMP6_FMIPV6_MESSAGES 154
#define ICMP6_RPL_CONTROL 155
#define ICMP6_ILNPV6 156 /* Pending IANA assignment */
#define ICMP6_6LOWPANND_DAR 157
#define ICMP6_6LOWPANND_DAC 158
static const value_string icmpv6_type_val[] = {
{ ICMP6_DST_UNREACH, "Destination Unreachable" }, /* [RFC4443] */
{ ICMP6_PACKET_TOO_BIG, "Packet Too Big" }, /* [RFC4443] */
{ ICMP6_TIME_EXCEEDED, "Time Exceeded" }, /* [RFC4443] */
{ ICMP6_PARAM_PROB, "Parameter Problem" }, /* [RFC4443] */
{ 100, "Private experimentation" }, /* [RFC4443] */
{ 101, "Private experimentation" }, /* [RFC4443] */
{ 127, "Reserved for expansion of ICMPv6 error messages" }, /* [RFC4443] */
{ ICMP6_ECHO_REQUEST, "Echo (ping) request" }, /* [RFC4443] */
{ ICMP6_ECHO_REPLY, "Echo (ping) reply" }, /* [RFC4443] */
{ ICMP6_MEMBERSHIP_QUERY, "Multicast Listener Query" }, /* [RFC2710] */
{ ICMP6_MEMBERSHIP_REPORT, "Multicast Listener Report" }, /* [RFC2710] */
{ ICMP6_MEMBERSHIP_REDUCTION, "Multicast Listener Done" }, /* [RFC2710] */
{ ICMP6_ND_ROUTER_SOLICIT, "Router Solicitation" }, /* [RFC4861] */
{ ICMP6_ND_ROUTER_ADVERT, "Router Advertisement" }, /* [RFC4861] */
{ ICMP6_ND_NEIGHBOR_SOLICIT, "Neighbor Solicitation" }, /* [RFC4861] */
{ ICMP6_ND_NEIGHBOR_ADVERT, "Neighbor Advertisement" }, /* [RFC4861] */
{ ICMP6_ND_REDIRECT, "Redirect" }, /* [RFC4861] */
{ ICMP6_ROUTER_RENUMBERING, "Router Renumbering" }, /* [RFC2894] */
{ ICMP6_NI_QUERY, "Node Information Query" }, /* [RFC4620] */
{ ICMP6_NI_REPLY, "Node Information Reply" }, /* [RFC4620] */
{ ICMP6_IND_SOLICIT, "Inverse Neighbor Discovery Solicitation" }, /* [RFC3122] */
{ ICMP6_IND_ADVERT, "Inverse Neighbor Discovery Advertisement" }, /* [RFC3122] */
{ ICMP6_MLDV2_REPORT, "Multicast Listener Report Message v2" }, /* [RFC3810] */
{ ICMP6_MIP6_DHAAD_REQUEST, "Home Agent Address Discovery Request" }, /* [RFC6275] */
{ ICMP6_MIP6_DHAAD_REPLY, "Home Agent Address Discovery Reply" }, /* [RFC6275] */
{ ICMP6_MIP6_MPS, "Mobile Prefix Solicitation" }, /* [RFC6275] */
{ ICMP6_MIP6_MPA, "Mobile Prefix Advertisement" }, /* [RFC6275] */
{ ICMP6_CERT_PATH_SOL, "Certification Path Solicitation" }, /* [RFC3971] */
{ ICMP6_CERT_PATH_AD, "Certification Path Advertisement" }, /* [RFC3971] */
{ ICMP6_EXPERIMENTAL_MOBILITY, "Experimental Mobility" }, /* [RFC4065] */
{ ICMP6_MCAST_ROUTER_ADVERT, "Multicast Router Advertisement" }, /* [RFC4286] */
{ ICMP6_MCAST_ROUTER_SOLICIT, "Multicast Router Solicitation" }, /* [RFC4286] */
{ ICMP6_MCAST_ROUTER_TERM, "Multicast Router Termination" }, /* [RFC4286] */
{ ICMP6_FMIPV6_MESSAGES, "FMIPv6" }, /* [RFC5568] */
{ ICMP6_RPL_CONTROL, "RPL Control" }, /* [RFC6550] */
{ ICMP6_ILNPV6, "Locator Update"}, /* [RFC6743] */
{ ICMP6_6LOWPANND_DAR, "Duplicate Address Request"}, /* [RFC6775] */
{ ICMP6_6LOWPANND_DAC, "Duplicate Address Confirmation"}, /* [RFC6775] */
{ 200, "Private experimentation" }, /* [RFC4443] */
{ 201, "Private experimentation" }, /* [RFC4443] */
{ 255, "Reserved for expansion of ICMPv6 informational messages" }, /* [RFC4443] */
{ 0, NULL }
};
#define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */
#define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */
#define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */
#define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */
#define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */
#define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */
#define ICMP6_DST_UNREACH_INGR_EGR 5 /* source address failed ingress/egress policy */
#define ICMP6_DST_UNREACH_REJECT 6 /* reject route to destination */
#define ICMP6_DST_UNREACH_ERROR 7 /* error in Source Routing Header */
static const value_string icmpv6_unreach_code_val[] = {
{ ICMP6_DST_UNREACH_NOROUTE, "no route to destination" },
{ ICMP6_DST_UNREACH_ADMIN, "Administratively prohibited" },
{ ICMP6_DST_UNREACH_BEYONDSCOPE, "Beyond scope of source address" },
{ ICMP6_DST_UNREACH_ADDR, "Address unreachable" },
{ ICMP6_DST_UNREACH_NOPORT, "Port unreachable" },
{ ICMP6_DST_UNREACH_INGR_EGR, "Source address failed ingress/egress policy" },
{ ICMP6_DST_UNREACH_REJECT, "Reject route to destination" },
{ ICMP6_DST_UNREACH_ERROR, "Error in Source Routing Header" }, /* [RFC6550] [RFC6554] */
{ 0, NULL }
};
#define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */
#define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */
static const value_string icmpv6_timeex_code_val[] = {
{ ICMP6_TIME_EXCEED_TRANSIT, "hop limit exceeded in transit" },
{ ICMP6_TIME_EXCEED_REASSEMBLY, "fragment reassembly time exceeded" },
{ 0, NULL }
};
#define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
#define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
#define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
#define ICMP6_PARAMPROB_FIRSTFRAG 3 /* IPv6 First Fragment has incomplete IPv6 Header Chain [RFC 7112] */
static const value_string icmpv6_paramprob_code_val[] = {
{ ICMP6_PARAMPROB_HEADER, "erroneous header field encountered" },
{ ICMP6_PARAMPROB_NEXTHEADER, "unrecognized Next Header type encountered" },
{ ICMP6_PARAMPROB_OPTION, "unrecognized IPv6 option encountered" },
{ ICMP6_PARAMPROB_FIRSTFRAG, "IPv6 First Fragment has incomplete IPv6 Header Chain" },
{ 0, NULL }
};
/* RFC2894 - Router Renumbering for IPv6 */
#define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
#define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
#define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
static const value_string icmpv6_rr_code_val[] = {
{ ICMP6_ROUTER_RENUMBERING_COMMAND, "Command" },
{ ICMP6_ROUTER_RENUMBERING_RESULT, "Result" },
{ ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET, "Sequence number reset" },
{ 0, NULL }
};
#define RR_FLAG_T 0x80
#define RR_FLAG_R 0x40
#define RR_FLAG_A 0x20
#define RR_FLAG_S 0x10
#define RR_FLAG_P 0x08
#define RR_FLAG_RSV 0x07
static const value_string rr_pco_mp_opcode_val[] = {
{ 1, "Add" },
{ 2, "Change" },
{ 3, "Set Global" },
{ 0, NULL }
};
/* RFC3810 - Multicast Listener Discovery Version 2 (MLDv2) for IPv6 */
#define MLDV2_PACKET_MINLEN 28
#define MLD_FLAG_S 0x08
#define MLD_FLAG_QRV 0x07
#define MLD_FLAG_RSV 0xF0
static const value_string mldr_record_type_val[] = {
{ 1, "Include" },
{ 2, "Exclude" },
{ 3, "Changed to include" },
{ 4, "Changed to exclude" },
{ 5, "Allow new sources" },
{ 6, "Block old sources" },
{ 0, NULL }
};
/* RFC 4068/5268/5568: Fast Handovers for Mobile IPv6 ( Mobile IPv6 Fast Handovers ) */
#define FMIP6_SUBTYPE_RTSOLPR 2
#define FMIP6_SUBTYPE_PRRTADV 3
#define FMIP6_SUBTYPE_HI 4
#define FMIP6_SUBTYPE_HACK 5
static const value_string fmip6_subtype_val[] = {
{ FMIP6_SUBTYPE_RTSOLPR, "Router Solicitation for Proxy Advertisement" },
{ FMIP6_SUBTYPE_PRRTADV, "Proxy Router Advertisement" },
{ FMIP6_SUBTYPE_HI, "Handover Initiate" },
{ FMIP6_SUBTYPE_HACK, "Handover Acknowledge" },
{ 0, NULL }
};
static const value_string fmip6_prrtadv_code_val[] = {
{ 0, "MN should use AP-ID, AR-info tuple" },
{ 1, "Network Initiated Handover trigger" },
{ 2, "No new router information" },
{ 3, "Limited new router information" },
{ 4, "Unsolicited" },
{ 0, NULL }
};
static const value_string fmip6_hi_code_val[] = {
{ 0, "FBU sent from previous link" },
{ 1, "FBU sent from new link" },
{ 0, NULL }
};
static const value_string fmip6_hack_code_val[] = {
{ 0, "Handover Accepted, NCoA valid" },
{ 1, "Handover Accepted, NCoA not valid" },
{ 2, "Handover Accepted, NCoA in use" },
{ 3, "Handover Accepted, NCoA assigned" },
{ 4, "Handover Accepted, NCoA not assigned" },
{ 128, "Handover Not Accepted, reason unspecified" },
{ 129, "Administratively prohibited" },
{ 130, "Insufficient resources" },
{ 0, NULL }
};
#define FMIP6_HI_FLAG_S 0x80
#define FMIP6_HI_FLAG_U 0x40
#define FMIP6_HI_FLAG_RSV 0x3F
/* RFC 4620 - IPv6 Node Information Queries */
#define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */
#define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */
#define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */
#define ICMP6_NI_SUCCESS 0 /* node information successful reply */
#define ICMP6_NI_REFUSED 1 /* node information request is refused */
#define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
#define NI_QTYPE_NOOP 0 /* NOOP */
#define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes (Obso) */
#define NI_QTYPE_NODENAME 2 /* Node Name */
#define NI_QTYPE_NODEADDR 3 /* Node Addresses */
#define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */
static const value_string ni_query_code_val[] = {
{ ICMP6_NI_SUBJ_IPV6, "Query subject = IPv6 addresses" },
{ ICMP6_NI_SUBJ_FQDN, "Query subject = DNS name or empty" },
{ ICMP6_NI_SUBJ_IPV4, "Query subject = IPv4 addresses" },
{ 0, NULL }
};
static const value_string ni_reply_code_val[] = {
{ ICMP6_NI_SUCCESS, "Successful" },
{ ICMP6_NI_REFUSED, "Refused" },
{ ICMP6_NI_UNKNOWN, "Unknown query type" },
{ 0, NULL }
};
static const value_string ni_qtype_val[] = {
{ NI_QTYPE_NOOP, "NOOP" },
{ NI_QTYPE_SUPTYPES, "Supported query types (Obsolete)" },
{ NI_QTYPE_NODENAME, "Node Name" },
{ NI_QTYPE_NODEADDR, "Node addresses" },
{ NI_QTYPE_IPV4ADDR, "IPv4 node addresses" },
{ 0, NULL }
};
#define NI_FLAG_G 0x0020
#define NI_FLAG_S 0x0010
#define NI_FLAG_L 0x0008
#define NI_FLAG_C 0x0004
#define NI_FLAG_A 0x0002
#define NI_FLAG_T 0x0001
#define NI_FLAG_RSV 0xFFC0
static const true_false_string tfs_ni_flag_a = {
"All unicast address",
"Unicast addresses on the queried interface"
};
#define ND_OPT_SOURCE_LINKADDR 1
#define ND_OPT_TARGET_LINKADDR 2
#define ND_OPT_PREFIX_INFORMATION 3
#define ND_OPT_REDIRECTED_HEADER 4
#define ND_OPT_MTU 5
#define ND_OPT_NBMA 6
#define ND_OPT_ADVINTERVAL 7
#define ND_OPT_HOMEAGENT_INFO 8
#define ND_OPT_SOURCE_ADDRLIST 9
#define ND_OPT_TARGET_ADDRLIST 10
#define ND_OPT_CGA 11
#define ND_OPT_RSA 12
#define ND_OPT_TIMESTAMP 13
#define ND_OPT_NONCE 14
#define ND_OPT_TRUST_ANCHOR 15
#define ND_OPT_CERTIFICATE 16
#define ND_OPT_IP_ADDRESS_PREFIX 17
#define ND_OPT_NEW_ROUTER_PREFIX_INFO 18
#define ND_OPT_LINK_LAYER_ADDRESS 19
#define ND_OPT_NEIGHBOR_ADV_ACK 20
#define ND_OPT_MAP 23
#define ND_OPT_ROUTE_INFO 24
#define ND_OPT_RECURSIVE_DNS_SERVER 25
#define ND_OPT_FLAGS_EXTENSION 26
#define ND_OPT_HANDOVER_KEY_REQUEST 27
#define ND_OPT_HANDOVER_KEY_REPLY 28
#define ND_OPT_HANDOVER_ASSIST_INFO 29
#define ND_OPT_MOBILE_NODE_ID 30
#define ND_OPT_DNS_SEARCH_LIST 31
#define ND_OPT_PROXY_SIGNATURE 32
#define ND_OPT_ADDR_REGISTRATION 33
#define ND_OPT_6LOWPAN_CONTEXT 34
#define ND_OPT_AUTH_BORDER_ROUTER 35
static const value_string option_vals[] = {
/* 1 */ { ND_OPT_SOURCE_LINKADDR, "Source link-layer address" },
/* 2 */ { ND_OPT_TARGET_LINKADDR, "Target link-layer address" },
/* 3 */ { ND_OPT_PREFIX_INFORMATION, "Prefix information" },
/* 4 */ { ND_OPT_REDIRECTED_HEADER, "Redirected header" },
/* 5 */ { ND_OPT_MTU, "MTU" },
/* 6 */ { ND_OPT_NBMA, "NBMA Shortcut Limit Option" }, /* [RFC2491] */
/* 7 */ { ND_OPT_ADVINTERVAL, "Advertisement Interval" }, /* [RFC6275] */
/* 8 */ { ND_OPT_HOMEAGENT_INFO, "Home Agent Information" }, /* [RFC6275] */
/* 9 */ { ND_OPT_SOURCE_ADDRLIST, "Source Address List" }, /* [RFC3122] */
/* 10 */ { ND_OPT_TARGET_ADDRLIST, "Target Address List" }, /* [RFC3122] */
/* 11 */ { ND_OPT_CGA, "CGA" }, /* [RFC3971] */
/* 12 */ { ND_OPT_RSA, "RSA Signature" }, /* [RFC3971] */
/* 13 */ { ND_OPT_TIMESTAMP, "Timestamp" }, /* [RFC3971] */
/* 14 */ { ND_OPT_NONCE, "Nonce" }, /* [RFC3971] */
/* 15 */ { ND_OPT_TRUST_ANCHOR, "Trust Anchor" }, /* [RFC3971] */
/* 16 */ { ND_OPT_CERTIFICATE, "Certificate" }, /* [RFC3971] */
/* 17 */ { ND_OPT_IP_ADDRESS_PREFIX, "IP Address/Prefix Option" }, /* [RFC5568] */
/* 18 */ { ND_OPT_NEW_ROUTER_PREFIX_INFO, "New Router Prefix Information" }, /* [RFC4068] OBSO */
/* 19 */ { ND_OPT_LINK_LAYER_ADDRESS, "Link-layer Address" }, /* [RFC5568] */
/* 20 */ { ND_OPT_NEIGHBOR_ADV_ACK, "Neighbor Advertisement Acknowledgment" }, /* [RFC5568] */
/* 21-22 Unassigned */
/* 23 */ { ND_OPT_MAP, "MAP" }, /* [RFC4140] */
/* 24 */ { ND_OPT_ROUTE_INFO, "Route Information" }, /* [RFC4191] */
/* 25 */ { ND_OPT_RECURSIVE_DNS_SERVER, "Recursive DNS Server" }, /* [RFC6106] */
/* 26 */ { ND_OPT_FLAGS_EXTENSION, "RA Flags Extension" }, /* [RFC5175] */
/* 27 */ { ND_OPT_HANDOVER_KEY_REQUEST, "Handover Key Request" }, /* [RFC5269] */
/* 28 */ { ND_OPT_HANDOVER_KEY_REPLY, "Handover Key Reply" }, /* [RFC5269] */
/* 29 */ { ND_OPT_HANDOVER_ASSIST_INFO, "Handover Assist Information" }, /* [RFC5271] */
/* 30 */ { ND_OPT_MOBILE_NODE_ID, "Mobile Node Identifier Option" }, /* [RFC5271] */
/* 31 */ { ND_OPT_DNS_SEARCH_LIST, "DNS Search List Option" }, /* [RFC6106] */
/* 32 */ { ND_OPT_PROXY_SIGNATURE, "Proxy Signature (PS)" }, /* [RFC6496] */
/* 33 */ { ND_OPT_ADDR_REGISTRATION, "Address Registration Option" }, /* [RFC6775] */
/* 34 */ { ND_OPT_6LOWPAN_CONTEXT, "6LoWPAN Context Option" }, /* [RFC6775] */
/* 35 */ { ND_OPT_AUTH_BORDER_ROUTER, "Authoritative Border Router" }, /* [RFC6775] */
/* 36-137 Unassigned */
{ 138, "CARD Request" }, /* [RFC4065] */
{ 139, "CARD Reply" }, /* [RFC4065] */
/* 140-252 Unassigned */
{ 253, "RFC3692-style Experiment 1" }, /* [RFC4727] */
{ 254, "RFC3692-style Experiment 2" }, /* [RFC4727] */
{ 0, NULL }
};
#define ND_RA_FLAG_M 0x80
#define ND_RA_FLAG_O 0x40
#define ND_RA_FLAG_H 0x20
#define ND_RA_FLAG_PRF 0x18
#define ND_RA_FLAG_P 0x04
#define ND_RA_FLAG_RSV 0x02
#define ND_NA_FLAG_R 0x80000000
#define ND_NA_FLAG_S 0x40000000
#define ND_NA_FLAG_O 0x20000000
#define ND_NA_FLAG_RSV 0x1FFFFFFF
static const value_string nd_flag_router_pref[] = {
{ 1, "High" },
{ 0, "Medium" },
{ 3, "Low" },
{ 2, "Reserved" },
{ 0, NULL}
};
static const value_string nd_opt_ipa_option_code_val[] = {
{ 1, "Old Care-of Address" },
{ 2, "New Care-of Address" },
{ 3, "NAR's IP address" },
{ 4, "NAR's Prefix (sent in PrRtAdv)" },
{ 0, NULL }
};
static const value_string nd_opt_lla_option_code_val[] = {
{ 0, "Wildcard" },
{ 1, "Link-layer Address of the New Access Point" },
{ 2, "Link-layer Address of the MN" },
{ 3, "Link-layer Address of the NAR" },
{ 4, "Link-layer Address of the source" },
{ 5, "The AP belongs to the current interface of the router" },
{ 6, "No prefix information available" },
{ 7, "No fast handovers support available" },
{ 0, NULL }
};
static const value_string nd_opt_hai_option_code_val[] = {
{ 1, "Access Network Identifier (AN ID)" },
{ 2, "Sector ID" },
{ 0, NULL }
};
static const value_string nd_opt_mn_option_code_val[] = {
{ 1, "NAI" },
{ 2, "IMSI" },
{ 0, NULL }
};
static const value_string nd_opt_naack_status_val[] = {
{ 1, "New CoA is invalid, perform address configuration" },
{ 2, "New CoA is invalid, use the supplied CoA" },
{ 3, "NCoA is invalid, use NAR's IP address as NCoA in FBU" },
{ 4, "PCoA supplied, do not send FBU" },
{ 128, "LLA is unrecognized" },
{ 0, NULL }
};
#define ND_OPT_6CO_FLAG_C 0x10
#define ND_OPT_6CO_FLAG_CID 0x0F
#define ND_OPT_6CO_FLAG_RESERVED 0xE0
static const value_string nd_opt_6lowpannd_status_val[] = {
{ 0, "Success" },
{ 1, "Duplicate Exists" },
{ 2, "Neighbor Cache Full" },
{ 0, NULL }
};
static const value_string icmpv6_option_name_type_vals[] = {
{ 1, "DER Encoded X.501 Name" },
{ 2, "FQDN" },
{ 3, "SHA-1 Subject Key Identifier (SKI)" },
{ 4, "SHA-224 Subject Key Identifier (SKI)" },
{ 5, "SHA-256 Subject Key Identifier (SKI)" },
{ 6, "SHA-384 Subject Key Identifier (SKI)" },
{ 7, "SHA-512 Subject Key Identifier (SKI)" },
{ 253, "Reserved for Experimental Use" },
{ 254, "Reserved for Experimental Use" },
{ 255, "Reserved" },
{ 0, NULL }
};
static const value_string icmpv6_option_cert_type_vals[] = {
{ 1, "X.509v3 Certificate" },
{ 0, NULL }
};
/* RFC 4191: Default Router Preferences and More-Specific Routes */
#define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
#define ND_RA_FLAG_RESERV_MASK 0xE7 /* 11100111 */
/* RFC 5075/5175 : IPv6 Router Advertisement Flags Option */
#define FLAGS_EO_M 0x8000
#define FLAGS_EO_O 0x4000
#define FLAGS_EO_H 0x2000
#define FLAGS_EO_PRF 0x1800
#define FLAGS_EO_P 0x0400
#define FLAGS_EO_RSV 0x02FF
/* RPL : RFC 6550 : Routing over Low-Power and Lossy Networks. */
/* RPL ICMPv6 Codes */
#define ICMP6_RPL_DIS 0x00 /* DODAG Information Solicitation */
#define ICMP6_RPL_DIO 0x01 /* DODAG Information Object */
#define ICMP6_RPL_DAO 0x02 /* Destination Advertisement Object */
#define ICMP6_RPL_DAOACK 0x03 /* Destination Advertisement Object Ack */
#define ICMP6_RPL_SDIS 0x80 /* Secure DODAG Information Solicitation */
#define ICMP6_RPL_SDIO 0x81 /* Secure DODAG Information Object */
#define ICMP6_RPL_SDAO 0x82 /* Secure Destination Advertisement Object */
#define ICMP6_RPL_SDAOACK 0x83 /* Secure Destination Advertisement Object Ack */
#define ICMP6_RPL_CC 0x8A /* Consistency Check */
/* RPL DIO Flags */
#define RPL_DIO_FLAG_G 0x80
#define RPL_DIO_FLAG_0 0x40
#define RPL_DIO_FLAG_MOP 0x38
#define RPL_DIO_FLAG_PRF 0x07
/* RPL DAO Flags */
#define RPL_DAO_FLAG_K 0x80
#define RPL_DAO_FLAG_D 0x40
#define RPL_DAO_FLAG_RESERVED 0x3F
/* RPL DAO ACK Flags */
#define RPL_DAOACK_FLAG_D 0x80
#define RPL_DAOACK_FLAG_RESERVED 0x7F
/* RPL CC Flags */
#define RPL_CC_FLAG_R 0x80
#define RPL_CC_FLAG_RESERVED 0x7F
/* RPL Secure */
#define ICMP6_RPL_SECURE 0x80
#define RPL_SECURE_FLAG_T 0x80
#define RPL_SECURE_FLAG_RSV 0x7F
#define RPL_SECURE_LVL 0x07
#define RPL_SECURE_KIM 0xC0
#define RPL_SECURE_RSV 0x38
/* RPL Option Bitfields */
#define RPL_OPT_PREFIX_FLAG_L 0x80
#define RPL_OPT_PREFIX_FLAG_A 0x40
#define RPL_OPT_PREFIX_FLAG_R 0x20
#define RPL_OPT_PREFIX_FLAG_RSV 0x1F
#define RPL_OPT_ROUTE_PREFERENCE 0x18
#define RPL_OPT_ROUTE_RESERVED 0xE7
#define RPL_OPT_CONFIG_FLAG_AUTH 0x08
#define RPL_OPT_CONFIG_FLAG_PCS 0x07
#define RPL_OPT_CONFIG_FLAG_RESERVED 0xF0
#define RPL_OPT_TRANSIT_FLAG_E 0x80
#define RPL_OPT_TRANSIT_FLAG_RSV 0x7F
#define RPL_OPT_SOLICITED_FLAG_V 0x80
#define RPL_OPT_SOLICITED_FLAG_I 0x40
#define RPL_OPT_SOLICITED_FLAG_D 0x20
#define RPL_OPT_SOLICITED_FLAG_RSV 0x1F
static const value_string rpl_dio_map_val[] = {
{ 0, "No Downward routes maintained by RPL" },
{ 1, "Non-Storing Mode of Operation" },
{ 2, "Storing Mode of Operation with no multicast support" },
{ 3, "Storing Mode of Operation with multicast support" },
{ 0, NULL }
};
static const value_string rpl_code_val[] = {
{ ICMP6_RPL_DIS, "DODAG Information Solicitation" },
{ ICMP6_RPL_DIO, "DODAG Information Object" },
{ ICMP6_RPL_DAO, "Destination Advertisement Object" },
{ ICMP6_RPL_DAOACK, "Destination Advertisement Object Acknowledgment" },
{ ICMP6_RPL_SDIS, "Secure DODAG Information Solicitation" },
{ ICMP6_RPL_SDIO, "Secure DODAG Information Object" },
{ ICMP6_RPL_SDAO, "Secure Destination Advertisement Object" },
{ ICMP6_RPL_SDAOACK,"Secure Destination Advertisement Object Acknowledgment" },
{ ICMP6_RPL_CC, "Consistency Check" },
{ 0, NULL }
};
static const value_string rpl_secure_algorithm_encryption_val[] = {
{ 0, "CCM with AES-128" },
{ 0, NULL }
};
static const value_string rpl_secure_algorithm_signature_val[] = {
{ 0, "RSA with SHA-256" },
{ 0, NULL }
};
/* RPL Option Types */
/* Pending IANA Assignment */
#define RPL_OPT_PAD1 0 /* 1-byte padding */
#define RPL_OPT_PADN 1 /* n-byte padding */
#define RPL_OPT_METRIC 2 /* DAG metric container */
#define RPL_OPT_ROUTING 3 /* Routing Information */
#define RPL_OPT_CONFIG 4 /* DAG configuration */
#define RPL_OPT_TARGET 5 /* RPL Target */
#define RPL_OPT_TRANSIT 6 /* Transit */
#define RPL_OPT_SOLICITED 7 /* Solicited Information */
#define RPL_OPT_PREFIX 8 /* Destination prefix */
#define RPL_OPT_TARGETDESC 9 /* RPL Target Descriptor */
static const value_string rpl_option_vals[] = {
{ RPL_OPT_PAD1, "1-byte padding" },
{ RPL_OPT_PADN, "n-byte padding" },
{ RPL_OPT_METRIC, "DAG Metric container" },
{ RPL_OPT_ROUTING, "Routing Information"},
{ RPL_OPT_CONFIG, "DODAG configuration" },
{ RPL_OPT_TARGET, "RPL Target" },
{ RPL_OPT_TRANSIT, "Transit Information" },
{ RPL_OPT_SOLICITED, "Solicited Information"},
{ RPL_OPT_PREFIX, "Prefix Information"},
{ RPL_OPT_TARGETDESC, "RPL Target Descriptor"},
{ 0, NULL }
};
static int
dissect_contained_icmpv6(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
{
gboolean save_in_error_pkt;
tvbuff_t *next_tvb;
/* Save the current value of the "we're inside an error packet"
flag, and set that flag; subdissectors may treat packets
that are the payload of error packets differently from
"real" packets. */
save_in_error_pkt = pinfo->flags.in_error_pkt;
pinfo->flags.in_error_pkt = TRUE;
next_tvb = tvb_new_subset_remaining(tvb, offset);
/* tiny sanity check */
if ((tvb_get_guint8(tvb, offset) & 0xf0) == 0x60) {
/* The contained packet is an IPv6 datagram; dissect it. */
offset += call_dissector(ipv6_handle, next_tvb, pinfo, tree);
} else
offset += call_dissector(data_handle, next_tvb, pinfo, tree);
/* Restore the "we're inside an error packet" flag. */
pinfo->flags.in_error_pkt = save_in_error_pkt;
return offset;
}
/* ======================================================================= */
static conversation_t *_find_or_create_conversation(packet_info *pinfo)
{
conversation_t *conv = NULL;
/* Have we seen this conversation before? */
conv = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst,
pinfo->ptype, 0, 0, 0);
if (conv == NULL) {
/* No, this is a new conversation. */
conv = conversation_new(pinfo->fd->num, &pinfo->src, &pinfo->dst,
pinfo->ptype, 0, 0, 0);
}
return conv;
}
/* ======================================================================= */
static icmp_transaction_t *transaction_start(packet_info *pinfo, proto_tree *tree, guint32 *key)
{
conversation_t *conversation;
icmpv6_conv_info_t *icmpv6_info;
icmp_transaction_t *icmpv6_trans;
wmem_tree_key_t icmpv6_key[3];
proto_item *it;
/* Handle the conversation tracking */
conversation = _find_or_create_conversation(pinfo);
icmpv6_info = (icmpv6_conv_info_t *)conversation_get_proto_data(conversation, proto_icmpv6);
if (icmpv6_info == NULL) {
icmpv6_info = wmem_new(wmem_file_scope(), icmpv6_conv_info_t);
icmpv6_info->unmatched_pdus = wmem_tree_new(wmem_file_scope());
icmpv6_info->matched_pdus = wmem_tree_new(wmem_file_scope());
conversation_add_proto_data(conversation, proto_icmpv6, icmpv6_info);
}
if (!PINFO_FD_VISITED(pinfo)) {
/*
* This is a new request, create a new transaction structure and map it
* to the unmatched table.
*/
icmpv6_key[0].length = 2;
icmpv6_key[0].key = key;
icmpv6_key[1].length = 0;
icmpv6_key[1].key = NULL;
icmpv6_trans = wmem_new(wmem_file_scope(), icmp_transaction_t);
icmpv6_trans->rqst_frame = PINFO_FD_NUM(pinfo);
icmpv6_trans->resp_frame = 0;
icmpv6_trans->rqst_time = pinfo->fd->abs_ts;
nstime_set_zero(&icmpv6_trans->resp_time);
wmem_tree_insert32_array(icmpv6_info->unmatched_pdus, icmpv6_key, (void *)icmpv6_trans);
} else {
/* Already visited this frame */
guint32 frame_num = pinfo->fd->num;
icmpv6_key[0].length = 2;
icmpv6_key[0].key = key;
icmpv6_key[1].length = 1;
icmpv6_key[1].key = &frame_num;
icmpv6_key[2].length = 0;
icmpv6_key[2].key = NULL;
icmpv6_trans = (icmp_transaction_t *)wmem_tree_lookup32_array(icmpv6_info->matched_pdus, icmpv6_key);
}
if (icmpv6_trans == NULL) {
if (PINFO_FD_VISITED(pinfo)) {
/* No response found - add field and expert info */
it = proto_tree_add_item(tree, hf_icmpv6_no_resp, NULL, 0, 0,
ENC_NA);
PROTO_ITEM_SET_GENERATED(it);
col_append_fstr(pinfo->cinfo, COL_INFO, " (no response found!)");
/* Expert info. TODO: add to _icmp_transaction_t type and sequence number
so can report here (and in taps) */
expert_add_info_format(pinfo, it, &ei_icmpv6_resp_not_found,
"No response seen to ICMPv6 request in frame %u",
pinfo->fd->num);
}
return NULL;
}
/* Print state tracking in the tree */
if (icmpv6_trans->resp_frame) {
if (tree) {
it = proto_tree_add_uint(tree, hf_icmpv6_resp_in, NULL, 0, 0,
icmpv6_trans->resp_frame);
PROTO_ITEM_SET_GENERATED(it);
}
col_append_fstr(pinfo->cinfo, COL_INFO, " (reply in %d)", icmpv6_trans->resp_frame);
}
return icmpv6_trans;
} /* transaction_start() */
/* ======================================================================= */
static icmp_transaction_t *transaction_end(packet_info *pinfo, proto_tree *tree, guint32 *key)
{
conversation_t *conversation;
icmpv6_conv_info_t *icmpv6_info;
icmp_transaction_t *icmpv6_trans;
wmem_tree_key_t icmpv6_key[3];
proto_item *it;
nstime_t ns;
double resp_time;
conversation = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst,
pinfo->ptype, 0, 0, 0);
if (conversation == NULL)
return NULL;
icmpv6_info = (icmpv6_conv_info_t *)conversation_get_proto_data(conversation, proto_icmpv6);
if (icmpv6_info == NULL)
return NULL;
if (!PINFO_FD_VISITED(pinfo)) {
guint32 frame_num;
icmpv6_key[0].length = 2;
icmpv6_key[0].key = key;
icmpv6_key[1].length = 0;
icmpv6_key[1].key = NULL;
icmpv6_trans = (icmp_transaction_t *)wmem_tree_lookup32_array(icmpv6_info->unmatched_pdus, icmpv6_key);
if (icmpv6_trans == NULL)
return NULL;
/* we have already seen this response, or an identical one */
if (icmpv6_trans->resp_frame != 0)
return NULL;
icmpv6_trans->resp_frame = PINFO_FD_NUM(pinfo);
/*
* we found a match. Add entries to the matched table for both
* request and reply frames
*/
icmpv6_key[0].length = 2;
icmpv6_key[0].key = key;
icmpv6_key[1].length = 1;
icmpv6_key[1].key = &frame_num;
icmpv6_key[2].length = 0;
icmpv6_key[2].key = NULL;
frame_num = icmpv6_trans->rqst_frame;
wmem_tree_insert32_array(icmpv6_info->matched_pdus, icmpv6_key, (void *)icmpv6_trans);
frame_num = icmpv6_trans->resp_frame;
wmem_tree_insert32_array(icmpv6_info->matched_pdus, icmpv6_key, (void *)icmpv6_trans);
} else {
/* Already visited this frame */
guint32 frame_num = pinfo->fd->num;
icmpv6_key[0].length = 2;
icmpv6_key[0].key = key;
icmpv6_key[1].length = 1;
icmpv6_key[1].key = &frame_num;
icmpv6_key[2].length = 0;
icmpv6_key[2].key = NULL;
icmpv6_trans = (icmp_transaction_t *)wmem_tree_lookup32_array(icmpv6_info->matched_pdus, icmpv6_key);
if (icmpv6_trans == NULL)
return NULL;
}
/* Print state tracking in the tree */
if (tree) {
it = proto_tree_add_uint(tree, hf_icmpv6_resp_to, NULL, 0, 0,
icmpv6_trans->rqst_frame);
PROTO_ITEM_SET_GENERATED(it);
}
nstime_delta(&ns, &pinfo->fd->abs_ts, &icmpv6_trans->rqst_time);
icmpv6_trans->resp_time = ns;
if (tree) {
resp_time = nstime_to_msec(&ns);
it = proto_tree_add_double_format_value(tree, hf_icmpv6_resptime, NULL,
0, 0, resp_time, "%.3f ms", resp_time);
PROTO_ITEM_SET_GENERATED(it);
}
col_append_fstr(pinfo->cinfo, COL_INFO, " (request in %d)",
icmpv6_trans->rqst_frame);
return icmpv6_trans;
} /* transaction_end() */
static int
dissect_icmpv6_nd_opt(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
{
proto_tree *icmp6opt_tree, *flag_tree;
proto_item *ti, *ti_opt, *ti_opt_len;
guint8 opt_type;
int opt_len;
int opt_offset;
while ((int)tvb_reported_length(tvb) > offset) {
/* there are more options */
/* ICMPv6 Option */
opt_len = tvb_get_guint8(tvb, offset + 1) * 8;
ti = proto_tree_add_item(tree, hf_icmpv6_opt, tvb, offset, opt_len, ENC_NA);
icmp6opt_tree = proto_item_add_subtree(ti, ett_icmpv6_opt);
opt_offset = offset;
/* Option type */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_type, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_type = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* Add option name to option root label */
proto_item_append_text(ti, " (%s", val_to_str(opt_type, option_vals, "Unknown %d"));
/* Option length */
ti_opt_len = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_length, tvb,opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Add length value in bytes */
proto_item_append_text(ti_opt_len, " (%i bytes)", opt_len);
if(opt_len == 0){
expert_add_info_format(pinfo, ti_opt_len, &ei_icmpv6_invalid_option_length, "Invalid option length (Zero)");
return opt_offset;
}
/* decode... */
switch (opt_type) {
case ND_OPT_SOURCE_LINKADDR: /* Source Link-layer Address (1) */
{
const gchar *link_str;
/* if the opt len is 8, the Link Addr is MAC Address */
if(opt_len == 8){
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr_mac, tvb, opt_offset, 6, ENC_NA);
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_src_linkaddr_mac, tvb, opt_offset, 6, ENC_NA);
PROTO_ITEM_SET_HIDDEN(ti_opt);
link_str = tvb_ether_to_str(tvb, opt_offset);
col_append_fstr(pinfo->cinfo, COL_INFO, " from %s", link_str);
proto_item_append_text(ti, " : %s", link_str);
/* if the opt len is 16 and the 6 last bytes is 0n the Link Addr is EUI64 Address */
}else if(opt_len == 16 && tvb_get_ntohl(tvb, opt_offset + 8) == 0 && tvb_get_ntohs(tvb, opt_offset + 12) == 0){
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr_eui64, tvb, opt_offset, 8, ENC_BIG_ENDIAN);
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_src_linkaddr_eui64, tvb, opt_offset, 8, ENC_BIG_ENDIAN);
PROTO_ITEM_SET_HIDDEN(ti_opt);
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr, tvb, opt_offset, 8, ENC_NA);
PROTO_ITEM_SET_HIDDEN(ti_opt);
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_src_linkaddr, tvb, opt_offset, 8, ENC_NA);
PROTO_ITEM_SET_HIDDEN(ti_opt);
/* Padding: 6 bytes */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset + 8, 6, ENC_NA);
link_str = tvb_eui64_to_str(tvb, opt_offset, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " from %s", link_str);
proto_item_append_text(ti, " : %s", link_str);
}else{
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr, tvb, opt_offset, opt_len-2, ENC_NA);
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_src_linkaddr, tvb, opt_offset, opt_len-2, ENC_NA);
PROTO_ITEM_SET_HIDDEN(ti_opt);
}
opt_offset += opt_len;
break;
}
case ND_OPT_TARGET_LINKADDR: /* Target Link-layer Address (2) */
{
const gchar *link_str;
/* if the opt len is 8, the Link Addr is MAC Address */
if(opt_len == 8){
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr_mac, tvb, opt_offset, 6, ENC_NA);
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_target_linkaddr_mac, tvb, opt_offset, 6, ENC_NA);
PROTO_ITEM_SET_HIDDEN(ti_opt);
link_str = tvb_ether_to_str(tvb, opt_offset);
col_append_fstr(pinfo->cinfo, COL_INFO, " is at %s", link_str);
proto_item_append_text(ti, " : %s", link_str);
/* if the opt len is 16 and the 6 last bytes is 0n the Link Addr is EUI64 Address */
}else if(opt_len == 16 && tvb_get_ntohl(tvb, opt_offset + 8) == 0 && tvb_get_ntohs(tvb, opt_offset + 12) == 0){
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr_eui64, tvb, opt_offset, 8, ENC_BIG_ENDIAN);
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_target_linkaddr_eui64, tvb, opt_offset, 8, ENC_BIG_ENDIAN);
PROTO_ITEM_SET_HIDDEN(ti_opt);
/* Padding: 6 bytes */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset + 8, 6, ENC_NA);
link_str = tvb_eui64_to_str(tvb, opt_offset, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " from %s", link_str);
proto_item_append_text(ti, " : %s", link_str);
}else{
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_linkaddr, tvb, opt_offset, opt_len-2, ENC_NA);
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_target_linkaddr, tvb, opt_offset, opt_len-2, ENC_NA);
PROTO_ITEM_SET_HIDDEN(ti_opt);
}
opt_offset += opt_len;
break;
}
case ND_OPT_PREFIX_INFORMATION: /* Prefix Information (3) */
{
guint8 prefix_len;
/* RFC 4861 */
/* Prefix Length */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
prefix_len = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* Flags */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_flag_prefix);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_prefix_flag_l, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_prefix_flag_a, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_prefix_flag_r, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_prefix_flag_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Prefix Valid Lifetime */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix_valid_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
switch(tvb_get_ntohl(tvb, opt_offset)){
case 0xffffffff:
proto_item_append_text(ti_opt, " (Infinity)");
break;
default:
break;
}
opt_offset += 4;
/* Prefix Preferred Lifetime */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix_preferred_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
switch(tvb_get_ntohl(tvb, opt_offset)){
case 0xffffffff:
proto_item_append_text(ti_opt, " (Infinity)");
break;
default:
break;
}
opt_offset += 4;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
opt_offset += 4;
/* Prefix */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " : %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
opt_offset += 16;
break;
}
case ND_OPT_REDIRECTED_HEADER: /* Redirected Header (4) */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 6, ENC_NA);
opt_offset += 6;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_redirected_packet, tvb, opt_offset, -1, ENC_NA);
opt_offset = dissect_contained_icmpv6(tvb, opt_offset, pinfo, icmp6opt_tree);
break;
case ND_OPT_MTU: /* MTU (5) */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
opt_offset += 2;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_mtu, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(ti, " : %d", tvb_get_ntohl(tvb, opt_offset));
opt_offset += 4;
break;
case ND_OPT_NBMA: /* NBMA Shortcut Limit Option (6) */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_nbma_shortcut_limit, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_item_append_text(ti, " : %d", tvb_get_guint8(tvb, opt_offset));
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 1, ENC_NA);
opt_offset += 1;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
opt_offset += 4;
break;
case ND_OPT_ADVINTERVAL: /* Advertisement Interval Option (7) */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
opt_offset += 2;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_advertisement_interval, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(ti, " : %d", tvb_get_ntohl(tvb, opt_offset));
opt_offset += 4;
break;
case ND_OPT_HOMEAGENT_INFO: /* Home Agent Information Option (8) */
{
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
opt_offset += 2;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_home_agent_preference, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_home_agent_lifetime, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
break;
}
case ND_OPT_SOURCE_ADDRLIST: /* Source Address List (9) */
case ND_OPT_TARGET_ADDRLIST: /* Target Address List (10)*/
{
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 6, ENC_NA);
opt_offset += 6;
while(opt_offset < (offset + opt_len) ) {
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_ipv6_address, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " %s", tvb_ip6_to_str(tvb, opt_offset));
opt_offset += 16;
}
break;
}
case ND_OPT_CGA: /* CGA Option (11) */
{
proto_tree *cga_tree;
proto_item *cga_item;
guint16 ext_data_len;
guint8 padd_length;
int par_len;
asn1_ctx_t asn1_ctx;
/* Pad Length */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_cga_pad_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
padd_length = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* Reserved 8 bits */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 1, ENC_NA);
opt_offset += 1;
/* CGA Parameters A variable-length field containing the CGA Parameters data
* structure described in Section 4 of
* "Cryptographically Generated Addresses (CGA)", RFC3972.
*/
par_len = opt_len -4 -padd_length;
cga_item = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_cga, tvb, opt_offset, par_len, ENC_NA);
par_len += opt_offset;
cga_tree = proto_item_add_subtree(cga_item, ett_icmpv6_cga_param_name);
proto_tree_add_item(cga_tree, hf_icmpv6_opt_cga_modifier, tvb, opt_offset, 16, ENC_NA);
opt_offset += 16;
proto_tree_add_item(cga_tree, hf_icmpv6_opt_cga_subnet_prefix, tvb, opt_offset, 8, ENC_NA);
opt_offset += 8;
proto_tree_add_item(cga_tree ,hf_icmpv6_opt_cga_count, tvb, opt_offset, 1, ENC_NA);
opt_offset += 1;
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
opt_offset = dissect_x509af_SubjectPublicKeyInfo(FALSE, tvb, opt_offset, &asn1_ctx, cga_tree, -1);
/* Process RFC 4581*/
while (opt_offset < par_len) {
proto_tree_add_item(cga_tree, hf_icmpv6_opt_cga_ext_type, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
ext_data_len = tvb_get_ntohs(tvb, opt_offset);
proto_tree_add_item(cga_tree, hf_icmpv6_opt_cga_ext_length, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
proto_tree_add_item(cga_tree, hf_icmpv6_opt_cga_ext_data, tvb, opt_offset, ext_data_len, ENC_NA);
opt_offset += ext_data_len;
}
/* Padding */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
opt_offset += padd_length;
break;
}
case ND_OPT_RSA: /* RSA Signature Option (12) */
{
int par_len;
/*5.2. RSA Signature Option */
/* Reserved, A 16-bit field reserved for future use. */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
opt_offset = opt_offset + 2;
/* Key Hash
* A 128-bit field containing the most significant (leftmost) 128
* bits of a SHA-1 [14] hash of the public key used for constructing
* the signature.
*/
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_rsa_key_hash, tvb, opt_offset, 16, ENC_NA);
opt_offset = opt_offset + 16;
/* Digital Signature */
par_len = opt_len - 20;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_digital_signature_padding , tvb, opt_offset, par_len, ENC_NA);
opt_offset += par_len;
/* Padding */
/* TODO: Calculate padding length and exclude from the signature */
break;
}
case ND_OPT_TIMESTAMP: /* Timestamp Option (13) */
/* Reserved A 48-bit field reserved for future use. */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 6, ENC_NA);
opt_offset += 6;
/* Timestamp
* A 64-bit unsigned integer field containing a timestamp. The value
* indicates the number of seconds since January 1, 1970, 00:00 UTC,
* by using a fixed point format. In this format, the integer number
* of seconds is contained in the first 48 bits of the field, and the
* remaining 16 bits indicate the number of 1/64K fractions of a
* second.
*/
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_timestamp, tvb, opt_offset + 2, 4, ENC_TIME_TIMESPEC|ENC_BIG_ENDIAN);
opt_offset += 8;
break;
case ND_OPT_NONCE: /* Nonce option (14) */
/* 5.3.2. Nonce Option */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_nonce, tvb, opt_offset, opt_len - 2, ENC_NA);
opt_offset += opt_len -2;
break;
case ND_OPT_TRUST_ANCHOR: /* Trust Anchor Option (15) */
{
proto_tree *name_tree;
proto_item *name_item;
guint8 name_type;
guint8 padd_length;
int par_len;
asn1_ctx_t asn1_ctx;
/* Name Type */
name_type = tvb_get_guint8(tvb, opt_offset);
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_name_type, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Pad Length */
padd_length = tvb_get_guint8(tvb, opt_offset);
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_cga_pad_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
par_len = opt_len - 4 - padd_length;
switch (name_type){
case 1:
/* DER Encoded X.501 Name */
name_item = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_name_x501, tvb, opt_offset, par_len, ENC_NA);
name_tree = proto_item_add_subtree(name_item, ett_icmpv6_opt_name);
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
dissect_x509if_Name(FALSE, tvb, opt_offset, &asn1_ctx, name_tree, hf_icmpv6_x509if_Name);
break;
case 2:
/* FQDN */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_name_fqdn, tvb, opt_offset, par_len, ENC_ASCII|ENC_NA);
break;
default:
break;
}
opt_offset += par_len;
/* Padding */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
opt_offset += padd_length;
break;
}
case ND_OPT_CERTIFICATE: /* Certificate Option (16) */
{
guint8 cert_type;
guint8 padd_length;
asn1_ctx_t asn1_ctx;
/* Cert Type */
cert_type = tvb_get_guint8(tvb, opt_offset);
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_cert_type, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Reserved */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 1, ENC_NA);
opt_offset += 1;
/* Certificate */
if(cert_type == 1){
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
opt_offset = dissect_x509af_Certificate(FALSE, tvb, opt_offset, &asn1_ctx, icmp6opt_tree, hf_icmpv6_x509af_Certificate);
padd_length = opt_len - (opt_offset - offset);
/* Padding */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
opt_offset += padd_length;
}else{
padd_length = opt_len - 4;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_certificate_padding, tvb, opt_offset, padd_length, ENC_NA);
opt_offset += padd_length;
}
break;
}
case ND_OPT_IP_ADDRESS_PREFIX: /* IP Address/Prefix Option (17) */
{
guint8 prefix_len;
/* Option-code */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_ipa_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Prefix Len */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_ipa_prefix_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
prefix_len = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
opt_offset += 4;
/* IPv6 Address */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_ipa_ipv6_address, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
opt_offset += 16;
break;
}
case ND_OPT_NEW_ROUTER_PREFIX_INFO: /* New Router Prefix Information Option (18) OBSO... */
{
guint8 prefix_len;
/* Option-code */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_nrpi_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Prefix Len */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_nrpi_prefix_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
prefix_len = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
opt_offset += 4;
/* Prefix */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_nrpi_prefix, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
opt_offset += 16;
break;
}
case ND_OPT_LINK_LAYER_ADDRESS: /* Link-layer Address Option (19) */
{
/* Option-Code */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_lla_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Link Layer Address */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_lla_bytes, tvb, opt_offset, opt_len-3, ENC_NA);
opt_offset += opt_len - 3;
break;
}
case ND_OPT_NEIGHBOR_ADV_ACK: /* Neighbor Advertisement Acknowledgment Option (20) */
{
guint8 status;
/* Option-Code */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_naack_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Status */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_naack_status, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
status = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
if(status == 2){
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_naack_supplied_ncoa, tvb, opt_offset, 16, ENC_NA);
opt_offset += 16;
}else{
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, opt_len - 4, ENC_NA);
opt_offset += opt_len - 4;
}
break;
}
case ND_OPT_MAP: /* MAP Option (23) */
{
/* Dist */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_map_dist, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
/* Pref */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_map_pref, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Flags */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_map_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_flag_map);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_map_flag_r, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_map_flag_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Valid Lifetime */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_map_valid_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
opt_offset += 4;
/* Global Address */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_map_global_address, tvb, opt_offset, 16, ENC_NA);
opt_offset += 16;
break;
}
case ND_OPT_ROUTE_INFO: /* Route Information Option (24) */
{
/* RFC 4191 */
guint8 prefix_len;
guint8 route_preference;
struct e_in6_addr prefix;
/* Prefix Len */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix_len, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
prefix_len = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* Flags */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_route_info_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_flag_route_info);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_route_info_flag_route_preference, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_route_info_flag_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
route_preference = tvb_get_guint8(tvb, opt_offset);
route_preference = (route_preference & ND_RA_FLAG_RTPREF_MASK) >> 3;
proto_item_append_text(ti, " : %s", val_to_str(route_preference, nd_flag_router_pref, "Unknown %d") );
opt_offset += 1;
/* Route Lifetime */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_route_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
switch(tvb_get_ntohl(tvb, opt_offset)){
case 0xffffffff:
proto_item_append_text(ti_opt, " (Infinity)");
break;
default:
break;
}
opt_offset += 4;
/* Prefix */
switch(opt_len){
case 8: /* Default Option Length without prefix */
proto_item_append_text(ti, " ::/%d", prefix_len);
break;
case 16:
memset(&prefix, 0, sizeof(prefix));
tvb_memcpy(tvb, (guint8 *)&prefix.bytes, opt_offset, 8);
proto_tree_add_ipv6(icmp6opt_tree, hf_icmpv6_opt_prefix, tvb, opt_offset, 8, prefix.bytes);
proto_item_append_text(ti, " %s/%d", ip6_to_str(&prefix), prefix_len);
opt_offset += 8;
break;
case 24:
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_prefix, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
opt_offset += 16;
break;
default:
expert_add_info(pinfo, ti_opt_len, &ei_icmpv6_invalid_option_length);
break;
}
break;
}
case ND_OPT_RECURSIVE_DNS_SERVER: /* Recursive DNS Server Option (25) */
{
/* Reserved */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
opt_offset += 2;
/* RDNSS Lifetime */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_rdnss_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
/* A value of all one bits (0xffffffff) represents infinity. A value of
* zero means that the RDNSS address MUST no longer be used.
*/
switch(tvb_get_ntohl(tvb, opt_offset)){
case 0:
proto_item_append_text(ti_opt, " (RDNSS address MUST no longer be used)");
break;
case 0xffffffff:
proto_item_append_text(ti_opt, " (Infinity)");
break;
default:
break;
}
opt_offset += 4;
while(opt_offset < (offset + opt_len) ) {
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_rdnss, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " %s", tvb_ip6_to_str(tvb, opt_offset));
opt_offset += 16;
}
break;
}
case ND_OPT_FLAGS_EXTENSION: /* RA Flags Extension Option (26) */
{
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_efo, tvb, opt_offset, 6, ENC_NA);
flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_flag_efo);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_m, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_o, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_h, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_prf, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_p, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_efo_rsv, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
proto_tree_add_item(flag_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 4, ENC_NA);
opt_offset += 4;
break;
}
case ND_OPT_HANDOVER_KEY_REQUEST: /* Handover Key Request Option (27) */
{
int par_len;
guint padd_length;
/* Pad Length */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_pad_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
padd_length = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* AT */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_at, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
/* Reserved */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Handover Key Encryption Public Key */
par_len = opt_len-4-padd_length;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_encryption_public_key, tvb, opt_offset, par_len, ENC_NA);
opt_offset += par_len;
/* Padding */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_padding, tvb, opt_offset, padd_length, ENC_NA);
opt_offset += 1;
break;
}
case ND_OPT_HANDOVER_KEY_REPLY: /* Handover Key Reply Option (28) */
{
int par_len;
guint padd_length;
/* Pad Length */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_pad_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
padd_length = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* AT */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_at, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
/* Reserved */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Lifetime */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_lifetime, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
/* Encrypted Handover Key */
par_len = opt_len-6-padd_length;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_encrypted_handover_key, tvb, opt_offset, par_len, ENC_NA);
opt_offset += par_len;
/* Padding */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hkr_padding, tvb, opt_offset, padd_length, ENC_NA);
opt_offset += 1;
break;
}
case ND_OPT_HANDOVER_ASSIST_INFO: /* Handover Assist Information Option (29) */
{
guint8 hai_len;
int padd_length;
/* Option-Code */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hai_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* HAI Length */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hai_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
hai_len = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* HAI Value */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_hai_value, tvb, opt_offset, hai_len, ENC_NA);
opt_offset += hai_len;
/* Padding... */
padd_length = opt_len - opt_offset;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
opt_offset += padd_length;
break;
}
case ND_OPT_MOBILE_NODE_ID: /* Mobile Node Identifier Option (30) */
{
guint8 mn_len;
int padd_length;
/* Option-Code */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_mn_option_code, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* MN Length */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_mn_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
mn_len = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* MN Value */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_mn_value, tvb, opt_offset, mn_len, ENC_NA);
opt_offset += mn_len;
/* Padding... */
padd_length = opt_len - opt_offset;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
opt_offset += padd_length;
break;
}
case ND_OPT_DNS_SEARCH_LIST: /* DNS Search List Option (31) */
{
int dnssl_len;
const guchar *dnssl_name;
/* Reserved */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
opt_offset += 2;
/* DNSSL Lifetime */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_dnssl_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
switch(tvb_get_ntohl(tvb, opt_offset)){
case 0:
proto_item_append_text(ti_opt, " (DNSSL domain name MUST no longer be used)");
break;
case 0xffffffff:
proto_item_append_text(ti_opt, " (Infinity)");
break;
default:
break;
}
opt_offset += 4;
while(opt_offset < (offset + opt_len) ) {
if(tvb_get_guint8(tvb, opt_offset) == 0){
/* Padding... */
int padd_length = (offset + opt_len) - opt_offset;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_padding, tvb, opt_offset, padd_length, ENC_NA);
opt_offset += padd_length;
break;
}
dnssl_len = get_dns_name(tvb, opt_offset, 0, opt_offset, &dnssl_name);
proto_tree_add_string(icmp6opt_tree, hf_icmpv6_opt_dnssl, tvb, opt_offset, dnssl_len, dnssl_name);
proto_item_append_text(ti, " %s", dnssl_name);
opt_offset += dnssl_len;
}
break;
}
case ND_OPT_PROXY_SIGNATURE: /* Proxy Signature Option (32) */
{
int par_len;
/* Reserved */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
opt_offset += 2;
/* Key Hash
* A 128-bit field containing the most significant (leftmost) 128
* bits of a SHA-1 [14] hash of the public key used for constructing
* the signature.
*/
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_ps_key_hash, tvb, opt_offset, 16, ENC_NA);
opt_offset += 16;
/* Digital Signature */
par_len = opt_len - 20;
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_digital_signature_padding , tvb, opt_offset, par_len, ENC_NA);
opt_offset += par_len;
/* Padding */
/* TODO: Calculate padding length and exclude from the signature */
break;
}
case ND_OPT_ADDR_REGISTRATION: /* Address Registration (TBD1 Pending IANA...) */
{
/* 6lowpan-ND */
guint8 status;
/* Status */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_aro_status, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
status = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* Reserved */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 3, ENC_NA);
opt_offset += 3;
/* Lifetime */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_aro_registration_lifetime, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
/* EUI-64 */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_aro_eui64, tvb, opt_offset, 8, ENC_BIG_ENDIAN);
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"));
opt_offset += 8;
}
break;
case ND_OPT_6LOWPAN_CONTEXT: /* 6LoWPAN Context (TBD2 Pending IANA...) */
{
ieee802154_hints_t *hints;
/* 6lowpan-ND */
guint8 context_id;
guint8 context_len;
struct e_in6_addr context_prefix;
/* Context Length */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_6co_context_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
context_len = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* Flags & CID */
context_id = tvb_get_guint8(tvb, opt_offset) & ND_OPT_6CO_FLAG_CID;
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_6co_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_flag_6lowpan);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_6co_flag_c, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_6co_flag_cid, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_opt_6co_flag_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Reserved */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_reserved, tvb, opt_offset, 2, ENC_NA);
opt_offset += 2;
/* Lifetime */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_6co_valid_lifetime, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
/* Context */
memset(&context_prefix.bytes, 0, sizeof(context_prefix));
switch(opt_len){
case 8: /* Default Option Length without context prefix */
proto_item_append_text(ti, " ::/%d", context_len);
break;
case 16:
tvb_memcpy(tvb, (guint8 *)&context_prefix.bytes, opt_offset, 8);
proto_tree_add_ipv6(icmp6opt_tree, hf_icmpv6_opt_6co_context_prefix, tvb, opt_offset, 8, context_prefix.bytes);
proto_item_append_text(ti, " %s/%d", ip6_to_str(&context_prefix), context_len);
opt_offset += 8;
break;
case 24:
tvb_memcpy(tvb, (guint8 *)&context_prefix.bytes, opt_offset, 16);
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_6co_context_prefix, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), context_len);
opt_offset += 16;
break;
default:
expert_add_info(pinfo, ti_opt_len, &ei_icmpv6_invalid_option_length);
break;
}
/* Update the 6LoWPAN dissectors with new context information. */
hints = (ieee802154_hints_t *)p_get_proto_data(wmem_file_scope(), pinfo,
proto_get_id_by_filter_name(IEEE802154_PROTOABBREV_WPAN), 0);
if ((opt_len <= 24) && hints) {
lowpan_context_insert(context_id, hints->src_pan, context_len, &context_prefix, pinfo->fd->num);
}
}
break;
case ND_OPT_AUTH_BORDER_ROUTER: /* Authoritative Border Router (33) */
{
guint16 version_low, version_high, valid_lifetime;
/* Version low*/
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_abro_version_low, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
version_low = tvb_get_ntohs(tvb, opt_offset);
opt_offset += 2;
/* Version high */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_abro_version_high, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
version_high = tvb_get_ntohs(tvb, opt_offset);
opt_offset += 2;
/* Valid lifetime */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_abro_valid_lifetime, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
valid_lifetime = tvb_get_ntohs(tvb, opt_offset);
opt_offset += 2;
/* 6LBR Address */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_opt_abro_6lbr_address, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " : Version %d.%d, Valid Lifetime : %d, 6LBR : %s", version_high, version_low, valid_lifetime, tvb_ip6_to_str(tvb, opt_offset));
opt_offset += 16;
}
break;
default :
expert_add_info_format(pinfo, ti, &ei_icmpv6_undecoded_option,
"Dissector for ICMPv6 Option (%d)"
" code not implemented, Contact Wireshark developers"
" if you want this supported", opt_type);
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_data, tvb, opt_offset, opt_len, ENC_NA);
opt_offset += opt_len;
break;
} /* switch (opt_type) */
offset += opt_len;
if(offset > opt_offset){
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_unknown_data, tvb, opt_offset, offset - opt_offset, ENC_NA);
expert_add_info(pinfo, ti_opt, &ei_icmpv6_unknown_data);
}
/* Close the ) to option root label */
proto_item_append_text(ti, ")");
}
return offset;
}
/* RPL: RFC 6550 : Routing over Low-Power and Lossy Networks. */
static int
dissect_icmpv6_rpl_opt(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
{
proto_tree *icmp6opt_tree, *flag_tree;
proto_item *ti, *ti_opt, *ti_opt_len;
guint8 opt_type;
int opt_len;
int opt_offset;
while ((int)tvb_reported_length(tvb) > offset) {
/* there are more options */
/* ICMPv6 RPL Option */
ti = proto_tree_add_item(tree, hf_icmpv6_rpl_opt, tvb, offset, 1, ENC_NA);
icmp6opt_tree = proto_item_add_subtree(ti, ett_icmpv6_rpl_opt);
opt_offset = offset;
/* Option type */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_type, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_type = tvb_get_guint8(tvb, opt_offset);
opt_offset += 1;
/* Add option name to option root label */
proto_item_append_text(ti, " (%s", val_to_str(opt_type, rpl_option_vals, "Unknown %d"));
/* The Pad1 option is a special case, and contains no data. */
if (opt_type == RPL_OPT_PAD1) {
offset += 1;
proto_item_append_text(ti, ")");
continue;
}
/* Option length */
ti_opt_len = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_len = tvb_get_guint8(tvb, opt_offset);
proto_item_set_len(ti, opt_len + 2);
opt_offset += 1;
/* decode... */
switch (opt_type) {
case RPL_OPT_PADN:
/* n-byte padding */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_padn, tvb, opt_offset, opt_len, ENC_NA);
proto_item_append_text(ti_opt, " (Length : %i bytes)", opt_len);
opt_offset += opt_len;
break;
case RPL_OPT_METRIC:
/* DAG metric container */
/* See draft-ietf-roll-routing-metrics for formatting. */
break;
case RPL_OPT_ROUTING: {
guint8 prefix_len;
struct e_in6_addr prefix;
/* Prefix length */
prefix_len = tvb_get_guint8(tvb, opt_offset);
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_route_prefix_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset +=1;
/* Flags */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_route_flag, tvb, opt_offset, 1, ENC_NA);
flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_rpl_flag_routing);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_route_pref, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_route_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset +=1;
/* Prefix lifetime. */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_route_lifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
switch(tvb_get_ntohl(tvb, opt_offset)){
case 0xffffffff:
proto_item_append_text(ti_opt, " (Infinity)");
break;
default:
break;
}
opt_offset += 4;
switch(opt_len){
case 6: /* Default Option Length without prefix */
proto_item_append_text(ti, " ::/%d", prefix_len);
break;
case 14:
memset(&prefix, 0, sizeof(prefix));
tvb_memcpy(tvb, (guint8 *)&prefix.bytes, opt_offset, 8);
proto_tree_add_ipv6(icmp6opt_tree, hf_icmpv6_rpl_opt_route_prefix, tvb, opt_offset, 8, prefix.bytes);
proto_item_append_text(ti, " %s/%d", ip6_to_str(&prefix), prefix_len);
opt_offset += 8;
break;
case 22:
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_route_prefix, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
opt_offset += 16;
break;
default:
expert_add_info(pinfo, ti_opt_len, &ei_icmpv6_invalid_option_length);
break;
}
break;
}
case RPL_OPT_CONFIG: {
/* Flags */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_flag, tvb, opt_offset, 1, ENC_NA);
flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_rpl_flag_config);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_config_reserved, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_config_auth, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_config_pcs, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* DIOIntervalDoublings */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_doublings, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* DIOIntervalMin */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_min_interval, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* DIORedundancyConstant */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_redundancy, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* MaxRankIncrease */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_rank_incr, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
/* MinHopRankInc */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_hop_rank_inc, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
/* OCP */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_ocp, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
/* Reserved */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_rsv, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Default Lifetime */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_def_lifetime, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Lifetime Unit */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_config_lifetime_unit, tvb, opt_offset, 2, ENC_BIG_ENDIAN);
opt_offset += 2;
break;
}
case RPL_OPT_TARGET: {
guint8 prefix_len;
struct e_in6_addr target_prefix;
/* Flag */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_target_flag, tvb, opt_offset, 1, ENC_NA);
opt_offset += 1;
/* Prefix length */
prefix_len = tvb_get_guint8(tvb, opt_offset);
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_target_prefix_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Target Prefix */
switch(opt_len){
case 2: /* Default Option Length without prefix */
proto_item_append_text(ti, " ::/%d", prefix_len);
break;
case 10:
memset(&target_prefix, 0, sizeof(target_prefix));
tvb_memcpy(tvb, (guint8 *)&target_prefix.bytes, opt_offset, 8);
proto_tree_add_ipv6(icmp6opt_tree, hf_icmpv6_rpl_opt_target_prefix, tvb, opt_offset, 8, target_prefix.bytes);
proto_item_append_text(ti, " %s/%d", ip6_to_str(&target_prefix), prefix_len);
opt_offset += 8;
break;
case 18:
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_target_prefix, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
opt_offset += 16;
break;
default:
expert_add_info(pinfo, ti_opt_len, &ei_icmpv6_invalid_option_length);
break;
}
break;
}
case RPL_OPT_TRANSIT: {
/* Flags */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_transit_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_rpl_flag_transit);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_transit_flag_e, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_transit_flag_rsv, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Path Control */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_transit_pathctl, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Path Sequence */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_transit_pathseq, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Path Lifetime */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_transit_pathlifetime, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Option contains parent */
if(opt_len > 4)
{
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_transit_parent, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " %s", tvb_ip6_to_str(tvb, opt_offset));
opt_offset += 16;
}
break;
}
case RPL_OPT_SOLICITED: {
/*Instance ID */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_solicited_instance, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Flags */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_solicited_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_rpl_flag_solicited);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_solicited_flag_v, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_solicited_flag_i, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_solicited_flag_d, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_solicited_flag_rsv, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* DODAG ID */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_solicited_dodagid, tvb, opt_offset, 16, ENC_NA);
opt_offset += 16;
/* Version Number */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_solicited_version, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
break;
}
case RPL_OPT_PREFIX: {
/* Destination prefix option. */
guint8 prefix_len;
/* Prefix length */
prefix_len = tvb_get_guint8(tvb, opt_offset);
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_prefix_length, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset +=1;
/* Flags */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_prefix_flag, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_opt, ett_icmpv6_rpl_flag_prefix);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_prefix_flag_l, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_prefix_flag_a, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_prefix_flag_r, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_opt_prefix_flag_rsv, tvb, opt_offset, 1, ENC_BIG_ENDIAN);
opt_offset += 1;
/* Valid lifetime. */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_prefix_vlifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
switch(tvb_get_ntohl(tvb, opt_offset)){
case 0xffffffff:
proto_item_append_text(ti_opt, " (Infinity)");
break;
default:
break;
}
opt_offset += 4;
/* Preferred Lifetime */
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_prefix_plifetime, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
switch(tvb_get_ntohl(tvb, opt_offset)){
case 0xffffffff:
proto_item_append_text(ti_opt, " (Infinity)");
break;
default:
break;
}
opt_offset += 4;
/* 4 reserved bytes. */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_reserved, tvb, opt_offset, 4, ENC_NA);
opt_offset += 4;
/* Prefix */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_prefix, tvb, opt_offset, 16, ENC_NA);
proto_item_append_text(ti, " %s/%d", tvb_ip6_to_str(tvb, opt_offset), prefix_len);
opt_offset += 16;
break;
}
case RPL_OPT_TARGETDESC: {
/* Descriptor */
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_rpl_opt_targetdesc, tvb, opt_offset, 4, ENC_BIG_ENDIAN);
opt_offset += 4;
break;
}
default :
expert_add_info_format(pinfo, ti, &ei_icmpv6_undecoded_rpl_option,
"Dissector for ICMPv6 RPL Option"
" (%d) code not implemented, Contact"
" Wireshark developers if you want this supported", opt_type);
proto_tree_add_item(icmp6opt_tree, hf_icmpv6_data, tvb, opt_offset, opt_len, ENC_NA);
opt_offset += opt_len;
break;
} /* switch (opt_type) */
offset += opt_len + 2;
if(offset > opt_offset){
ti_opt = proto_tree_add_item(icmp6opt_tree, hf_icmpv6_unknown_data, tvb, opt_offset, offset - opt_offset, ENC_NA);
expert_add_info(pinfo, ti_opt, &ei_icmpv6_unknown_data);
}
/* Close the ) to option root label */
proto_item_append_text(ti, ")");
} /* while */
return offset;
}
static int
dissect_rpl_control(tvbuff_t *tvb, int rpl_offset, packet_info *pinfo _U_, proto_tree *icmp6_tree, guint8 icmp6_type _U_, guint8 icmp6_code)
{
proto_tree *flag_tree;
proto_item *ti;
/* Secure RPL ? (ICMP Code start to 0x8x) */
if(icmp6_code & ICMP6_RPL_SECURE)
{
guint8 kim, lvl;
/* Flags */
ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_secure);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_flag_t, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_flag_rsv, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Algorithm */
ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_algorithm, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_secure);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_algorithm_encryption, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_algorithm_signature, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* KIM & LVL */
ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_secure);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_kim, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_lvl, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_secure_rsv, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
kim = tvb_get_guint8(tvb, rpl_offset) & RPL_SECURE_KIM >> 6;
lvl = tvb_get_guint8(tvb, rpl_offset) & RPL_SECURE_LVL;
rpl_offset += 1;
/* Flags */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Counter */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_counter, tvb, rpl_offset, 4, ENC_BIG_ENDIAN);
rpl_offset += 4;
/* Key Identifier */
switch(kim){
case 0:
{
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_key_index, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
break;
}
case 1:
{
/* No Key Identifier */
break;
}
case 2:
{
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_key_source, tvb, rpl_offset, 8, ENC_NA);
rpl_offset += 8;
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_key_index, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
break;
}
case 3:
{
if(lvl == 1 || lvl == 3)
{
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_key_source, tvb, rpl_offset, 8, ENC_NA);
rpl_offset += 8;
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_secure_key_index, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
}
break;
}
}
}
switch(icmp6_code){
case ICMP6_RPL_DIS: /* DODAG Information Solicitation (0) */
case ICMP6_RPL_SDIS: /* Secure DODAG Information Solicitation (128) */
{
/* Flags */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dis_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, rpl_offset, 1, ENC_NA);
rpl_offset += 1;
/* RPL Options */
rpl_offset = dissect_icmpv6_rpl_opt(tvb, rpl_offset, pinfo, icmp6_tree);
break;
}
case ICMP6_RPL_DIO: /* DODAG Information Object (1) */
case ICMP6_RPL_SDIO: /* Secure DODAG Information Object (129) */
{
/* RPLInstanceID */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_instance, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Version Number */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_version, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Rank */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_rank, tvb, rpl_offset, 2, ENC_BIG_ENDIAN);
rpl_offset += 2;
/* Flags */
ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_rpl_dio);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dio_flag_g, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dio_flag_0, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dio_flag_mop, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dio_flag_prf, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Destination Advertisement Trigger Sequence Number (DTSN) */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_dtsn, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Flags */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, rpl_offset, 1, ENC_NA);
rpl_offset += 1;
/* DODAGID */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dio_dagid, tvb, rpl_offset, 16, ENC_NA);
rpl_offset += 16;
/* RPL Options */
rpl_offset = dissect_icmpv6_rpl_opt(tvb, rpl_offset, pinfo, icmp6_tree);
break;
}
case ICMP6_RPL_DAO: /* Destination Advertisement Object (2) */
case ICMP6_RPL_SDAO: /* Secure Destination Advertisement Object (130) */
{
guint8 flags;
/* DAO Instance */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dao_instance, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Flags */
ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dao_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_rpl_dao);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dao_flag_k, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dao_flag_d, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_dao_flag_rsv, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
flags = tvb_get_guint8(tvb, rpl_offset);
rpl_offset += 1;
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, rpl_offset, 1, ENC_NA);
rpl_offset += 1;
/* Sequence */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dao_sequence, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* DODAGID */
if(flags & RPL_DAO_FLAG_D)
{
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_dao_dodagid, tvb, rpl_offset, 16, ENC_NA);
rpl_offset += 16;
}
/* Options */
rpl_offset = dissect_icmpv6_rpl_opt(tvb, rpl_offset, pinfo, icmp6_tree);
break;
}
case ICMP6_RPL_DAOACK: /* Destination Advertisement Object Acknowledgment (3) */
case ICMP6_RPL_SDAOACK: /* Secure Destination Advertisement Object Acknowledgment (131) */
{
guint8 flags;
/* DAO Instance */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_daoack_instance, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Flags */
ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_daoack_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_rpl_daoack);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_daoack_flag_d, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_daoack_flag_rsv, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
flags = tvb_get_guint8(tvb, rpl_offset);
rpl_offset += 1;
/* DAO Sequence */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_daoack_sequence, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Status */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_daoack_status, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* DODAGID */
if(flags & RPL_DAOACK_FLAG_D)
{
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_daoack_dodagid, tvb, rpl_offset, 16, ENC_NA);
rpl_offset += 16;
}
/* Options */
rpl_offset = dissect_icmpv6_rpl_opt(tvb, rpl_offset, pinfo, icmp6_tree);
break;
}
case ICMP6_RPL_CC:
{
/* CC Instance */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_cc_instance, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* Flags */
ti = proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_cc_flag, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_rpl_cc);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_cc_flag_r, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rpl_cc_flag_rsv, tvb, rpl_offset, 1, ENC_BIG_ENDIAN);
rpl_offset += 1;
/* CC Nonce */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_cc_nonce, tvb, rpl_offset, 2, ENC_BIG_ENDIAN);
rpl_offset += 2;
/* DODAGID */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_cc_dodagid, tvb, rpl_offset, 16, ENC_NA);
rpl_offset += 16;
/* Destination Counter */
proto_tree_add_item(icmp6_tree, hf_icmpv6_rpl_cc_destination_counter, tvb, rpl_offset, 4, ENC_BIG_ENDIAN);
rpl_offset += 4;
/* Options */
rpl_offset = dissect_icmpv6_rpl_opt(tvb, rpl_offset, pinfo, icmp6_tree);
break;
}
}
return rpl_offset;
}
/* RFC 4620 - IPv6 Node Information Queries */
static int
dissect_nodeinfo(tvbuff_t *tvb, int ni_offset, packet_info *pinfo _U_, proto_tree *tree, guint8 icmp6_type, guint8 icmp6_code)
{
proto_tree *flag_tree;
proto_item *ti;
guint16 qtype;
/* Qtype */
proto_tree_add_item(tree, hf_icmpv6_ni_qtype, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
qtype = tvb_get_ntohs(tvb, ni_offset);
ni_offset += 2;
/* Flags */
ti = proto_tree_add_item(tree, hf_icmpv6_ni_flag, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_ni);
proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_g, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_s, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_l, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_c, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_a, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_t, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_ni_flag_rsv, tvb, ni_offset, 2, ENC_BIG_ENDIAN);
ni_offset += 2;
/* Nonce */
proto_tree_add_item(tree, hf_icmpv6_ni_nonce, tvb, ni_offset, 8, ENC_BIG_ENDIAN);
ni_offset += 8;
/* Data ? */
if(tvb_reported_length_remaining(tvb, ni_offset) == 0){
return ni_offset;
}
if(icmp6_type == ICMP6_NI_QUERY){
switch(icmp6_code){
case ICMP6_NI_SUBJ_IPV6: {
proto_tree_add_item(tree, hf_icmpv6_ni_query_subject_ipv6, tvb, ni_offset, 16, ENC_NA);
ni_offset += 16;
break;
}
case ICMP6_NI_SUBJ_FQDN: {
int fqdn_len;
const guchar *fqdn_name;
fqdn_len = get_dns_name(tvb, ni_offset, 0, ni_offset, &fqdn_name);
proto_tree_add_string(tree, hf_icmpv6_ni_query_subject_fqdn, tvb, ni_offset, fqdn_len, fqdn_name);
ni_offset += fqdn_len;
break;
}
case ICMP6_NI_SUBJ_IPV4: {
proto_tree_add_item(tree, hf_icmpv6_ni_query_subject_ipv4, tvb, ni_offset, 4, ENC_BIG_ENDIAN);
ni_offset += 4;
break;
}
}
} else { /* It is ICMP6_NI_REPLY */
switch(qtype){
case NI_QTYPE_NOOP:
break;
case NI_QTYPE_NODENAME: {
int node_len;
const guchar *node_name;
/* TTL */
proto_tree_add_item(tree, hf_icmpv6_ni_reply_node_ttl, tvb, ni_offset, 4, ENC_BIG_ENDIAN);
ni_offset += 4;
/* Data ? */
if(tvb_reported_length_remaining(tvb, ni_offset) == 0){
return ni_offset;
}
while(ni_offset < (int)tvb_reported_length(tvb) ) {
if(tvb_get_guint8(tvb, ni_offset) == 0){ /* if Zero there is padding, skip the loop */
break;
}
/* Node Name */
node_len = get_dns_name(tvb, ni_offset, 0, ni_offset, &node_name);
proto_tree_add_string(tree, hf_icmpv6_ni_reply_node_name, tvb, ni_offset, node_len, node_name);
ni_offset += node_len;
}
break;
}
case NI_QTYPE_NODEADDR: {
while(ni_offset < (int)tvb_reported_length(tvb) ) {
/* TTL */
proto_tree_add_item(tree, hf_icmpv6_ni_reply_node_ttl, tvb, ni_offset, 4, ENC_BIG_ENDIAN);
ni_offset += 4;
/* Node Addresses */
proto_tree_add_item(tree, hf_icmpv6_ni_reply_node_address, tvb, ni_offset, 16, ENC_NA);
ni_offset += 16;
}
break;
}
case NI_QTYPE_IPV4ADDR: {
while(ni_offset < (int)tvb_reported_length(tvb) ) {
/* TTL */
proto_tree_add_item(tree, hf_icmpv6_ni_reply_node_ttl, tvb, ni_offset, 4, ENC_BIG_ENDIAN);
ni_offset += 4;
/* IPv4 Address */
proto_tree_add_item(tree, hf_icmpv6_ni_reply_ipv4_address, tvb, ni_offset, 4, ENC_BIG_ENDIAN);
ni_offset += 4;
}
break;
}
}
}
return ni_offset;
}
/* RFC 2894 - Router Renumbering for IPv6 */
static int
dissect_rrenum(tvbuff_t *tvb, int rr_offset, packet_info *pinfo _U_, proto_tree *tree, guint8 icmp6_type _U_, guint8 icmp6_code)
{
proto_tree *flag_tree, *mp_tree, *up_tree, *rm_tree;
proto_item *ti, *ti_mp, *ti_up, *ti_rm;
/* Sequence Number */
proto_tree_add_item(tree, hf_icmpv6_rr_sequencenumber, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
rr_offset += 4;
/* Segment Number */
proto_tree_add_item(tree, hf_icmpv6_rr_segmentnumber, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
rr_offset += 1;
/* Flags */
ti = proto_tree_add_item(tree, hf_icmpv6_rr_flag, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_flag_rr);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_t, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_r, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_a, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_s, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_p, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_flag_rsv, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
rr_offset += 1;
/* Max Delay */
proto_tree_add_item(tree, hf_icmpv6_rr_maxdelay, tvb, rr_offset, 2, ENC_BIG_ENDIAN);
rr_offset += 2;
/* Reserved */
proto_tree_add_item(tree, hf_icmpv6_reserved, tvb, rr_offset, 4, ENC_NA);
rr_offset += 4;
/* Data ? */
if(tvb_reported_length_remaining(tvb, rr_offset) == 0){
return rr_offset;
}
if(icmp6_code == ICMP6_ROUTER_RENUMBERING_COMMAND){
/* Match-Prefix Part */
guint8 opcode, matchlen, minlen, maxlen;
ti_mp = proto_tree_add_item(tree, hf_icmpv6_rr_pco_mp_part, tvb, rr_offset, 24, ENC_NA);
mp_tree = proto_item_add_subtree(ti_mp, ett_icmpv6_rr_mp);
/* OpCode */
proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_opcode, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
opcode = tvb_get_guint8(tvb, rr_offset);
rr_offset += 1;
/* OpLength */
proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_oplength, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
rr_offset += 1;
/* Ordinal */
proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_ordinal, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
rr_offset += 1;
/* MatchLen */
proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_matchlen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
matchlen = tvb_get_guint8(tvb, rr_offset);
if (matchlen > 128) {
expert_add_info(pinfo, ti, &ei_icmpv6_rr_pco_mp_matchlen);
}
rr_offset += 1;
/* MinLen */
proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_minlen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
minlen = tvb_get_guint8(tvb, rr_offset);
rr_offset += 1;
/* MaxLen */
proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_maxlen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
maxlen = tvb_get_guint8(tvb, rr_offset);
rr_offset += 1;
/* Reserved */
proto_tree_add_item(mp_tree, hf_icmpv6_reserved, tvb, rr_offset, 2, ENC_NA);
rr_offset += 2;
/* Match Prefix */
proto_tree_add_item(mp_tree, hf_icmpv6_rr_pco_mp_matchprefix, tvb, rr_offset, 16, ENC_NA);
/* Add Info (Prefix, Length...) to Match Prefix Part label */
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);
rr_offset += 16;
while ((int)tvb_reported_length(tvb) > rr_offset) {
/* Use-Prefix Part */
guint8 uselen, keeplen;
ti_up = proto_tree_add_item(tree, hf_icmpv6_rr_pco_up_part, tvb, rr_offset, 32, ENC_NA);
up_tree = proto_item_add_subtree(ti_up, ett_icmpv6_rr_up);
/* UseLen */
proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_uselen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
uselen = tvb_get_guint8(tvb, rr_offset);
rr_offset += 1;
/* KeepLen */
proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_keeplen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
keeplen = tvb_get_guint8(tvb, rr_offset);
rr_offset += 1;
/* FlagMask */
ti = proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_flagmask, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_rr_up_flag_mask);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flagmask_l, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flagmask_a, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flagmask_reserved, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
rr_offset += 1;
/* RaFlags */
ti = proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_raflags, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_rr_up_flag_ra);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_raflags_l, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_raflags_a, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_raflags_reserved, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
rr_offset += 1;
/* Valid Lifetime */
ti = proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_validlifetime, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
switch(tvb_get_ntohl(tvb, rr_offset)){
case 0xffffffff:
proto_item_append_text(ti, " (Infinity)");
break;
default:
break;
}
rr_offset += 4;
/* Preferred Lifetime */
ti = proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_preferredlifetime, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
switch(tvb_get_ntohl(tvb, rr_offset)){
case 0xffffffff:
proto_item_append_text(ti, " (Infinity)");
break;
default:
break;
}
rr_offset += 4;
/* Flags */
ti = proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_flag, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_rr_up_flag);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flag_v, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flag_p, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_pco_up_flag_reserved, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
rr_offset += 4;
/* UsePrefix */
proto_tree_add_item(up_tree, hf_icmpv6_rr_pco_up_useprefix, tvb, rr_offset, 16, ENC_NA);
rr_offset += 16;
/* Add Info (Prefix, Length...) to Use Prefix Part label */
proto_item_append_text(ti_up, ": %s/%u (keep %u)", tvb_ip6_to_str(tvb, rr_offset), uselen, keeplen);
}
}else if(icmp6_code == ICMP6_ROUTER_RENUMBERING_RESULT){
while ((int)tvb_reported_length(tvb) > rr_offset) {
guint8 matchlen;
guint32 interfaceindex;
/* Result Message */
ti_rm = proto_tree_add_item(tree, hf_icmpv6_rr_rm, tvb, rr_offset, 24, ENC_NA);
rm_tree = proto_item_add_subtree(ti_rm, ett_icmpv6_rr_rm);
/* Flags */
ti = proto_tree_add_item(rm_tree, hf_icmpv6_rr_rm_flag, tvb, rr_offset, 2, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti, ett_icmpv6_rr_rm_flag);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_rm_flag_reserved, tvb, rr_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_rm_flag_b, tvb, rr_offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_rr_rm_flag_f, tvb, rr_offset, 2, ENC_BIG_ENDIAN);
rr_offset +=2;
/* Ordinal */
proto_tree_add_item(rm_tree, hf_icmpv6_rr_rm_ordinal, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
rr_offset +=1;
/* MatchLen */
ti = proto_tree_add_item(rm_tree, hf_icmpv6_rr_rm_matchedlen, tvb, rr_offset, 1, ENC_BIG_ENDIAN);
matchlen = tvb_get_guint8(tvb, rr_offset);
if (matchlen > 128) {
expert_add_info(pinfo, ti, &ei_icmpv6_rr_pco_mp_matchedlen);
}
rr_offset +=1;
/* InterfaceIndex */
proto_tree_add_item(rm_tree, hf_icmpv6_rr_rm_interfaceindex, tvb, rr_offset, 4, ENC_BIG_ENDIAN);
interfaceindex = tvb_get_ntohl(tvb, rr_offset);
rr_offset +=4;
/* MatchedPrefix */
proto_tree_add_item(rm_tree, hf_icmpv6_rr_rm_matchedprefix, tvb, rr_offset, 16, ENC_NA);
/* Add Info (Prefix, Length...) to Use Resultant Message label */
proto_item_append_text(ti_rm, ": %s/%u (interface %u)", tvb_ip6_to_str(tvb, rr_offset), matchlen, interfaceindex);
rr_offset +=16;
}
}
return rr_offset;
}
static int
dissect_mldrv2( tvbuff_t *tvb, guint32 offset, packet_info *pinfo _U_, proto_tree *tree )
{
proto_tree *mar_tree;
proto_item *ti_mar;
int mldr_offset = offset;
/* Reserved */
proto_tree_add_item(tree, hf_icmpv6_reserved, tvb, mldr_offset, 2, ENC_NA );
mldr_offset += 2;
/* Nr of Mcast Address Records (M) */
proto_tree_add_item(tree, hf_icmpv6_mldr_nb_mcast_records, tvb, mldr_offset, 2, ENC_BIG_ENDIAN );
mldr_offset += 2;
/* Multicast Address Record */
while(mldr_offset < (int)tvb_reported_length(tvb) ) {
guint8 aux_data_len, record_type;
guint16 i, nb_sources;
struct e_in6_addr multicast_address;
ti_mar = proto_tree_add_item(tree, hf_icmpv6_mldr_mar, tvb, mldr_offset, -1, ENC_NA);
mar_tree = proto_item_add_subtree(ti_mar, ett_icmpv6_mar);
/* Record Type */
proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_record_type, tvb, mldr_offset, 1, ENC_BIG_ENDIAN);
record_type = tvb_get_guint8(tvb, mldr_offset);
mldr_offset += 1;
/* Aux Data Len */
proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_aux_data_len, tvb, mldr_offset, 1, ENC_BIG_ENDIAN);
aux_data_len = tvb_get_guint8(tvb, mldr_offset);
mldr_offset += 1;
/* Number of Sources (N) */
proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_nb_sources, tvb, mldr_offset, 2, ENC_BIG_ENDIAN);
nb_sources = tvb_get_ntohs(tvb, mldr_offset);
mldr_offset += 2;
/* Multicast Address */
proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_multicast_address, tvb, mldr_offset, 16, ENC_NA);
tvb_get_ipv6(tvb, mldr_offset, &multicast_address);
mldr_offset += 16;
/* Source Address */
for (i=0; i < nb_sources; i++){
proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_source_address, tvb, mldr_offset, 16, ENC_NA);
mldr_offset += 16;
}
/* Auxiliary Data ? */
if(aux_data_len)
{
proto_tree_add_item(mar_tree, hf_icmpv6_mldr_mar_auxiliary_data, tvb, mldr_offset, aux_data_len * 4, ENC_NA);
mldr_offset += aux_data_len * 4;
}
/* Multicast Address Record Length */
proto_item_set_len(ti_mar, 4 + 16 + (16 * nb_sources) + (aux_data_len * 4));
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));
}
return mldr_offset;
}
static int
dissect_icmpv6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
proto_tree *icmp6_tree = NULL, *flag_tree = NULL;
proto_item *ti = NULL, *hidden_item, *checksum_item = NULL, *code_item = NULL, *ti_flag = NULL;
const char *code_name = NULL;
guint length = 0, reported_length;
vec_t cksum_vec[4];
guint32 phdr[2];
guint16 cksum, computed_cksum;
int offset;
tvbuff_t *next_tvb;
guint8 icmp6_type, icmp6_code;
icmp_transaction_t *trans = NULL;
ws_ip *iph = (ws_ip*)data;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "ICMPv6");
col_clear(pinfo->cinfo, COL_INFO);
offset = 0;
if (tree) {
ti = proto_tree_add_item(tree, proto_icmpv6, tvb, offset, -1, ENC_NA);
icmp6_tree = proto_item_add_subtree(ti, ett_icmpv6);
/* Type */
proto_tree_add_item(icmp6_tree, hf_icmpv6_type, tvb, offset, 1, ENC_BIG_ENDIAN);
}
icmp6_type = tvb_get_guint8(tvb, offset);
offset += 1;
col_add_str(pinfo->cinfo, COL_INFO, val_to_str(icmp6_type, icmpv6_type_val, "Unknown (%d)"));
if (tree)
code_item = proto_tree_add_item(icmp6_tree, hf_icmpv6_code, tvb, offset, 1, ENC_BIG_ENDIAN);
icmp6_code = tvb_get_guint8(tvb, offset);
offset += 1;
switch (icmp6_type) {
case ICMP6_DST_UNREACH:
code_name = val_to_str_const(icmp6_code, icmpv6_unreach_code_val, "Unknown");
break;
case ICMP6_TIME_EXCEEDED:
code_name = val_to_str(icmp6_code, icmpv6_timeex_code_val, "Unknown (%d)");
break;
case ICMP6_PARAM_PROB:
code_name = val_to_str(icmp6_code, icmpv6_paramprob_code_val, "Unknown (%d)");
break;
case ICMP6_ROUTER_RENUMBERING:
code_name = val_to_str(icmp6_code, icmpv6_rr_code_val, "Unknown (%d)");
break;
case ICMP6_NI_QUERY:
code_name = val_to_str(icmp6_code, ni_query_code_val, "Unknown (%d)");
break;
case ICMP6_NI_REPLY:
code_name = val_to_str(icmp6_code, ni_reply_code_val, "Unknown (%d)");
break;
case ICMP6_RPL_CONTROL:
code_name = val_to_str(icmp6_code, rpl_code_val, "Unknown (%d)");
break;
}
if (code_name)
col_append_fstr(pinfo->cinfo, COL_INFO, " (%s)", code_name);
/* RFC 4380
* 2.7. Teredo UDP Port
* 5.2.9. Direct IPv6 Connectivity Test */
if (pinfo->destport == 3544 && icmp6_type == ICMP6_ECHO_REQUEST) {
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Teredo");
col_set_str(pinfo->cinfo, COL_INFO, "Direct IPv6 Connectivity Test");
}
if (tree) {
if (code_name)
proto_item_append_text(code_item, " (%s)", code_name);
checksum_item = proto_tree_add_item(icmp6_tree, hf_icmpv6_checksum, tvb, offset, 2, ENC_BIG_ENDIAN);
}
cksum = tvb_get_ntohs(tvb, offset);
if (1) { /* There's an expert info in here so always execute */
length = tvb_captured_length(tvb);
reported_length = tvb_reported_length(tvb);
if (!pinfo->fragmented && length >= reported_length && !pinfo->flags.in_error_pkt) {
/* The packet isn't part of a fragmented datagram, isn't truncated,
* and we aren't in an ICMP error packet, so we can checksum it.
*/
/* Set up the fields of the pseudo-header. */
SET_CKSUM_VEC_PTR(cksum_vec[0], (const guint8 *)pinfo->src.data, pinfo->src.len);
SET_CKSUM_VEC_PTR(cksum_vec[1], (const guint8 *)pinfo->dst.data, pinfo->dst.len);
phdr[0] = g_htonl(reported_length);
phdr[1] = g_htonl(IP_PROTO_ICMPV6);
SET_CKSUM_VEC_PTR(cksum_vec[2], (const guint8 *)&phdr, 8);
SET_CKSUM_VEC_TVB(cksum_vec[3], tvb, 0, reported_length);
computed_cksum = in_cksum(cksum_vec, 4);
if (computed_cksum == 0) {
hidden_item = proto_tree_add_boolean(icmp6_tree, hf_icmpv6_checksum_bad, tvb, offset, 2, FALSE);
PROTO_ITEM_SET_HIDDEN(hidden_item);
proto_item_append_text(checksum_item, " [correct]");
} else {
hidden_item = proto_tree_add_boolean(icmp6_tree, hf_icmpv6_checksum_bad, tvb, offset, 2, TRUE);
PROTO_ITEM_SET_HIDDEN(hidden_item);
proto_item_append_text(checksum_item, " [incorrect, should be 0x%04x]", in_cksum_shouldbe(cksum, computed_cksum));
expert_add_info_format(pinfo, checksum_item, &ei_icmpv6_checksum,
"ICMPv6 Checksum Incorrect, should be 0x%04x", in_cksum_shouldbe(cksum, computed_cksum));
}
} else {
proto_item_append_text(checksum_item, " [%s]",
pinfo->flags.in_error_pkt ? "in ICMP error packet" : "fragmented datagram");
}
}
offset += 2;
if (icmp6_type == ICMP6_ECHO_REQUEST || icmp6_type == ICMP6_ECHO_REPLY) {
guint16 identifier, sequence;
/* Identifier */
if (tree)
proto_tree_add_item(icmp6_tree, hf_icmpv6_echo_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
identifier = tvb_get_ntohs(tvb, offset);
offset += 2;
/* Sequence Number */
if (tree)
proto_tree_add_item(icmp6_tree, hf_icmpv6_echo_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN);
sequence = tvb_get_ntohs(tvb, offset);
offset += 2;
col_append_fstr(pinfo->cinfo, COL_INFO, " id=0x%04x, seq=%u, hop limit=%u",
identifier, sequence, (iph != NULL) ? iph->ip_ttl : 0);
if (pinfo->destport == 3544 && icmp6_type == ICMP6_ECHO_REQUEST) {
/* RFC 4380
* 2.7. Teredo UDP Port
* 5.2.9. Direct IPv6 Connectivity Test
*
* TODO: Clarify the nonce: The RFC states, "(It is recommended to
* use a random number [the nonce] at least 64 bits long.)"
*
* Shouldn't the nonce be at least 8 then? Why not just use (-1),
* as it could really be any length, couldn't it?
*/
if (tree)
proto_tree_add_item(icmp6_tree, hf_icmpv6_nonce, tvb, offset, 4, ENC_NA);
offset += 4;
} else {
if (!pinfo->flags.in_error_pkt) {
guint32 conv_key[2];
conv_key[1] = (guint32)((identifier << 16) | sequence);
if (icmp6_type == ICMP6_ECHO_REQUEST) {
conv_key[0] = (guint32)cksum;
if (pinfo->flags.in_gre_pkt)
conv_key[0] |= 0x00010000; /* set a bit for "in GRE" */
trans = transaction_start(pinfo, icmp6_tree, conv_key);
} else { /* ICMP6_ECHO_REPLY */
guint16 tmp[2];
tmp[0] = ~cksum;
tmp[1] = ~0x0100; /* The difference between echo request & reply */
SET_CKSUM_VEC_PTR(cksum_vec[0], (guint8 *)tmp, sizeof(tmp));
conv_key[0] = in_cksum(cksum_vec, 1);
if (conv_key[0] == 0)
conv_key[0] = 0xffff;
if (pinfo->flags.in_gre_pkt)
conv_key[0] |= 0x00010000; /* set a bit for "in GRE" */
trans = transaction_end(pinfo, icmp6_tree, conv_key);
}
}
next_tvb = tvb_new_subset_remaining(tvb, offset);
offset += call_dissector(data_handle, next_tvb, pinfo, icmp6_tree);
}
}
if (1) { /* There are expert infos buried in here so always execute */
/* decode... */
/* FIXME: The following messages MUST have a TTL^WHop-Limit of 255:
133-137, 141-142, 148-149. Detect this and add expert items. */
switch (icmp6_type) {
case ICMP6_DST_UNREACH: /* Destination Unreachable (1) */
case ICMP6_TIME_EXCEEDED: /* Time Exceeded (3) */
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 4, ENC_NA);
offset += 4;
offset = dissect_contained_icmpv6(tvb, offset, pinfo, icmp6_tree);
break;
case ICMP6_PACKET_TOO_BIG: /* Packet Too Big (2) */
/* MTU */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mtu, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
offset = dissect_contained_icmpv6(tvb, offset, pinfo, icmp6_tree);
break;
case ICMP6_PARAM_PROB: /* Parameter Problem (4) */
/* MTU */
proto_tree_add_item(icmp6_tree, hf_icmpv6_pointer, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
offset = dissect_contained_icmpv6(tvb, offset, pinfo, icmp6_tree);
break;
case ICMP6_ECHO_REQUEST: /* Echo Request (128) */
case ICMP6_ECHO_REPLY: /* Echo Reply (129) */
/* Already handled above */
break;
case ICMP6_MEMBERSHIP_QUERY: /* Multicast Listener Query (130) */
case ICMP6_MEMBERSHIP_REPORT: /* Multicast Listener Report (131) */
case ICMP6_MEMBERSHIP_REDUCTION: /* Multicast Listener Done (132) */
{
/* It is MLDv2 packet ? (the min length for a MLDv2 packet is 28) */
if ((icmp6_type == ICMP6_MEMBERSHIP_QUERY) && (length >= MLDV2_PACKET_MINLEN)) {
guint32 mrc;
guint16 qqi, i, nb_sources;
/* Maximum Response Code */
mrc = tvb_get_ntohs(tvb, offset);
if (mrc >= 32768){
mrc = ((mrc & 0x0fff) | 0x1000) << (((mrc & 0x7000) >> 12) + 3);
}
proto_tree_add_uint(icmp6_tree, hf_icmpv6_mld_mrc, tvb, offset, 2, mrc);
offset += 2;
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
offset += 2;
/* Multicast Address */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_multicast_address, tvb, offset, 16, ENC_NA);
offset += 16;
/* Flag */
ti_flag = proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_flag, ett_icmpv6_flag_mld);
proto_tree_add_item(flag_tree, hf_icmpv6_mld_flag_s, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_mld_flag_qrv, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_mld_flag_rsv, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* QQI */
qqi = tvb_get_guint8(tvb, offset);
if (qqi >= 128){
qqi = ((qqi & 0x0f) | 0x10) << (((qqi & 0x70) >> 4) + 3);
}
proto_tree_add_uint(icmp6_tree, hf_icmpv6_mld_qqi, tvb, offset, 1, qqi);
offset += 1;
/* Number of Sources */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_nb_sources, tvb, offset, 2, ENC_BIG_ENDIAN);
nb_sources = tvb_get_ntohs(tvb, offset);
offset += 2;
/* Source Address */
for (i=0; i < nb_sources; i++){
proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_source_address, tvb, offset, 16, ENC_NA);
offset += 16;
}
}else{ /* It is a MLDv1 Packet */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_mrd, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
offset += 2;
/* Multicast Address */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mld_multicast_address, tvb, offset, 16, ENC_NA);
offset += 16;
}
break;
}
case ICMP6_ND_ROUTER_SOLICIT: /* Router Solicitation (133) */
{
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 4, ENC_NA);
offset += 4;
/* Show options */
offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
break;
}
case ICMP6_ND_ROUTER_ADVERT: /* Router Advertisement (134) */
{
/* Current hop limit */
proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ra_cur_hop_limit, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Flags */
ti_flag = proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ra_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_flag, ett_icmpv6_flag_ra);
proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_m, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_o, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_h, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_prf, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_p, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_nd_ra_flag_rsv, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Router lifetime */
proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ra_router_lifetime, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Reachable time */
proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ra_reachable_time, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
/* Retrans timer */
proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ra_retrans_timer, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
/* Show options */
offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
break;
}
case ICMP6_ND_NEIGHBOR_SOLICIT: /* Neighbor Solicitation (135) */
{
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 4, ENC_NA);
offset += 4;
/* Target Address */
proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_ns_target_address, tvb, offset, 16, ENC_NA);
col_append_fstr(pinfo->cinfo, COL_INFO, " for %s", tvb_ip6_to_str(tvb, offset));
offset += 16;
/* Show options */
offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
break;
}
case ICMP6_ND_NEIGHBOR_ADVERT: /* Neighbor Advertisement (136) */
{
guint32 na_flags;
wmem_strbuf_t *flags_strbuf = wmem_strbuf_new_label(wmem_packet_scope());
/* Flags */
ti_flag = proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_na_flag, tvb, offset, 4, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_flag, ett_icmpv6_flag_na);
proto_tree_add_item(flag_tree, hf_icmpv6_nd_na_flag_r, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_nd_na_flag_s, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_nd_na_flag_o, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_nd_na_flag_rsv, tvb, offset, 4, ENC_BIG_ENDIAN);
na_flags = tvb_get_ntohl(tvb, offset);
offset += 4;
/* Target Address */
proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_na_target_address, tvb, offset, 16, ENC_NA);
if (na_flags & ND_NA_FLAG_R) {
wmem_strbuf_append(flags_strbuf, "rtr, ");
}
if (na_flags & ND_NA_FLAG_S) {
wmem_strbuf_append(flags_strbuf, "sol, ");
}
if (na_flags & ND_NA_FLAG_O) {
wmem_strbuf_append(flags_strbuf, "ovr, ");
}
if (wmem_strbuf_get_len(flags_strbuf) > 2) {
wmem_strbuf_truncate(flags_strbuf, wmem_strbuf_get_len(flags_strbuf) - 2);
} else {
wmem_strbuf_truncate(flags_strbuf, 0);
wmem_strbuf_append(flags_strbuf, "none");
}
col_append_fstr(pinfo->cinfo, COL_INFO, " %s (%s)", tvb_ip6_to_str(tvb, offset), wmem_strbuf_get_str(flags_strbuf));
offset += 16;
/* Show options */
offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
break;
}
case ICMP6_ND_REDIRECT: /* Redirect Message (137) */
{
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 4, ENC_NA);
offset += 4;
/* Target Address */
proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_rd_target_address, tvb, offset, 16, ENC_NA);
offset += 16;
/* Destination Address */
proto_tree_add_item(icmp6_tree, hf_icmpv6_nd_rd_destination_address, tvb, offset, 16, ENC_NA);
offset += 16;
/* Show options */
offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
break;
}
case ICMP6_ROUTER_RENUMBERING: /* Router Renumbering (138) */
{
offset = dissect_rrenum(tvb, offset, pinfo, icmp6_tree, icmp6_type, icmp6_code);
break;
}
case ICMP6_NI_QUERY: /* ICMP Node Information Query (139) */
case ICMP6_NI_REPLY: /* ICMP Node Information Response (140) */
{
offset = dissect_nodeinfo(tvb, offset, pinfo, icmp6_tree, icmp6_type, icmp6_code);
break;
}
case ICMP6_IND_SOLICIT: /* Inverse Neighbor Discovery Solicitation Message (141) */
case ICMP6_IND_ADVERT: /* Inverse Neighbor Discovery Advertisement Message (142) */
{
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 4, ENC_NA);
offset += 4;
/* Show options */
offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
break;
}
case ICMP6_MLDV2_REPORT: /* Version 2 Multicast Listener Report (143) */
{
offset = dissect_mldrv2( tvb, offset, pinfo, icmp6_tree );
break;
}
case ICMP6_MIP6_DHAAD_REQUEST: /* Home Agent Address Discovery Request Message (144) */
{
/* Identifier */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
offset += 2;
break;
}
case ICMP6_MIP6_DHAAD_REPLY: /* Home Agent Address Discovery Reply Message (145) */
{
/* Identifier */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
offset += 2;
/* Show all Home Agent Addresses */
while((int)length > offset)
{
proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_home_agent_address, tvb, offset, 16, ENC_NA);
offset += 16;
}
break;
}
case ICMP6_MIP6_MPS: /* Mobile Prefix Solicitation (146) */
{
/* Identifier */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
offset += 2;
break;
}
case ICMP6_MIP6_MPA: /* Mobile Prefix Advertisement (147) */
{
/* Identifier */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Flag */
ti_flag = proto_tree_add_item(icmp6_tree, hf_icmpv6_mip6_flag, tvb,offset, 6, ENC_NA);
flag_tree = proto_item_add_subtree(ti_flag, ett_icmpv6_flag_mip6);
proto_tree_add_item(flag_tree, hf_icmpv6_mip6_flag_m, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_mip6_flag_o, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_mip6_flag_rsv, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Show options */
offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
break;
}
case ICMP6_CERT_PATH_SOL: /* Certification Path Solicitation Message (148) */
{
/* Identifier */
proto_tree_add_item(icmp6_tree, hf_icmpv6_send_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Component */
proto_tree_add_item(icmp6_tree, hf_icmpv6_send_component, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Show options */
offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
break;
}
case ICMP6_CERT_PATH_AD: /* Certification Path Advertisement Message (149) */
{
/* Identifier */
proto_tree_add_item(icmp6_tree, hf_icmpv6_send_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* All Components */
proto_tree_add_item(icmp6_tree, hf_icmpv6_send_all_components, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Component */
proto_tree_add_item(icmp6_tree, hf_icmpv6_send_component, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 2, ENC_NA);
offset += 2;
/* Show options */
offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
break;
}
case ICMP6_EXPERIMENTAL_MOBILITY: /* ICMP messages utilized by experimental mobility protocols (150) */
case ICMP6_FMIPV6_MESSAGES: /* FMIPv6 Messages (154)*/
{
guint8 subtype;
/* Subtype */
proto_tree_add_item(icmp6_tree, hf_icmpv6_fmip6_subtype, tvb, offset, 1, ENC_BIG_ENDIAN);
subtype = tvb_get_guint8(tvb, offset);
col_append_fstr(pinfo->cinfo, COL_INFO, " (%s)", val_to_str(subtype, fmip6_subtype_val, "Unknown (%d)"));
offset += 1;
switch(subtype){
case FMIP6_SUBTYPE_RTSOLPR:
{
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 1, ENC_NA);
}
break;
case FMIP6_SUBTYPE_PRRTADV:
{
proto_item_append_text(code_item, " (%s)", val_to_str(icmp6_code, fmip6_prrtadv_code_val, "Unknown %d") );
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 1, ENC_NA);
}
break;
case FMIP6_SUBTYPE_HI:
{
proto_item_append_text(code_item, " (%s)", val_to_str(icmp6_code, fmip6_hi_code_val, "Unknown %d") );
/* Flags */
ti_flag = proto_tree_add_item(icmp6_tree, hf_icmpv6_fmip6_hi_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
flag_tree = proto_item_add_subtree(ti_flag, ett_icmpv6_flag_fmip6);
proto_tree_add_item(flag_tree, hf_icmpv6_fmip6_hi_flag_s, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_fmip6_hi_flag_u, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flag_tree, hf_icmpv6_fmip6_hi_flag_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
}
break;
case FMIP6_SUBTYPE_HACK:
{
proto_item_append_text(code_item, " (%s)", val_to_str(icmp6_code, fmip6_hack_code_val, "Unknown %d") );
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_reserved, tvb, offset, 1, ENC_NA);
}
break;
}
offset +=1;
/* Identifier */
proto_tree_add_item(icmp6_tree, hf_icmpv6_fmip6_identifier, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Show options */
offset = dissect_icmpv6_nd_opt(tvb, offset, pinfo, icmp6_tree);
break;
}
case ICMP6_MCAST_ROUTER_ADVERT: /* Multicast Router Advertisement (151) */
{
/* Query Interval */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mcast_ra_query_interval, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* Robustness Variable */
proto_tree_add_item(icmp6_tree, hf_icmpv6_mcast_ra_robustness_variable, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
}
case ICMP6_MCAST_ROUTER_SOLICIT: /* Multicast Router Solicitation (152) */
case ICMP6_MCAST_ROUTER_TERM: /* Multicast Router Termination (153) */
{
/* No Action... */
break;
}
case ICMP6_RPL_CONTROL: /* RPL Control (155) */
{
/* RPL: RFC 6550 : Routing over Low-Power and Lossy Networks. */
offset = dissect_rpl_control(tvb, offset, pinfo, icmp6_tree, icmp6_type, icmp6_code);
break;
}
case ICMP6_ILNPV6: /* Locator Update (156) */
{
/*TODO Add support of Locator Update : RFC6743 */
break;
}
case ICMP6_6LOWPANND_DAR:
case ICMP6_6LOWPANND_DAC:
{
/* Status */
proto_tree_add_item(icmp6_tree, hf_icmpv6_da_status, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Reserved */
proto_tree_add_item(icmp6_tree, hf_icmpv6_da_rsv, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Lifetime */
proto_tree_add_item(icmp6_tree, hf_icmpv6_da_lifetime, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* EUI-64 */
proto_tree_add_item(icmp6_tree, hf_icmpv6_da_eui64, tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 8;
/* Address */
proto_tree_add_item(icmp6_tree, hf_icmpv6_da_raddr, tvb, offset, 16, ENC_NA);
offset += 16;
break;
}
default:
expert_add_info_format(pinfo, ti, &ei_icmpv6_undecoded_type,
"Dissector for ICMPv6 Type (%d)"
" code not implemented, Contact Wireshark"
" developers if you want this supported", icmp6_type);
proto_tree_add_item(icmp6_tree, hf_icmpv6_data, tvb, offset, -1, ENC_NA);
break;
} /* switch (icmp6_type) */
} /* if (1) */
if (trans)
tap_queue_packet(icmpv6_tap, pinfo, trans);
return offset;
}
void
proto_register_icmpv6(void)
{
static hf_register_info hf[] = {
{ &hf_icmpv6_type,
{ "Type", "icmpv6.type", FT_UINT8, BASE_DEC, VALS(icmpv6_type_val), 0x0,
"Indicates the type of the message", HFILL }},
{ &hf_icmpv6_code,
{ "Code", "icmpv6.code", FT_UINT8, BASE_DEC, NULL, 0x0,
"Depends on the message type. It is used to create an additional level of message granularity", HFILL }},
{ &hf_icmpv6_checksum,
{ "Checksum", "icmpv6.checksum", FT_UINT16, BASE_HEX, NULL, 0x0,
"Used to detect data corruption in the ICMPv6 message and parts of the IPv6 header", HFILL }},
{ &hf_icmpv6_checksum_bad,
{ "Bad Checksum", "icmpv6.checksum_bad", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_reserved,
{ "Reserved", "icmpv6.reserved", FT_BYTES, BASE_NONE, NULL, 0x0,
"Must be Zero", HFILL }},
{ &hf_icmpv6_data,
{ "Data", "icmpv6.data", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_unknown_data,
{ "Unknown Data", "icmpv6.unknown_data", FT_BYTES, BASE_NONE, NULL, 0x0,
"Not interpreted Data", HFILL }},
{ &hf_icmpv6_mtu,
{ "MTU", "icmpv6.mtu", FT_UINT32, BASE_DEC, NULL, 0x0,
"The Maximum Transmission Unit of the next-hop link", HFILL }},
{ &hf_icmpv6_pointer,
{ "Pointer", "icmpv6.pointer", FT_UINT32, BASE_DEC, NULL, 0x0,
"Identifies the octet offset within the invoking packet where the error was detected", HFILL }},
{ &hf_icmpv6_echo_identifier,
{ "Identifier", "icmpv6.echo.identifier", FT_UINT16, BASE_HEX, NULL, 0x0,
"An identifier to aid in matching with Request and Reply", HFILL }},
{ &hf_icmpv6_echo_sequence_number,
{ "Sequence", "icmpv6.echo.sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0,
"A sequence number to aid in matching Echo Replies to this Echo Request", HFILL }},
{ &hf_icmpv6_nonce,
{ "Nonce", "icmpv6.nonce", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
/* RFC 2461/4861 : Neighbor Discovery for IP version 6 (IPv6) */
{ &hf_icmpv6_nd_ra_cur_hop_limit,
{ "Cur hop limit", "icmpv6.nd.ra.cur_hop_limit", FT_UINT8, BASE_DEC, NULL, 0x0,
"The default value that should be placed in the Hop Count field of the IP header for outgoing IP packets", HFILL }},
{ &hf_icmpv6_nd_ra_flag,
{ "Flags", "icmpv6.nd.ra.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_nd_ra_flag_m,
{ "Managed address configuration", "icmpv6.nd.ra.flag.m", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ND_RA_FLAG_M,
"When set, it indicates that addresses are available via DHCPv6", HFILL }},
{ &hf_icmpv6_nd_ra_flag_o,
{ "Other configuration", "icmpv6.nd.ra.flag.o", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ND_RA_FLAG_O,
"When set, it indicates that other configuration information is available via DHCPv6", HFILL }},
{ &hf_icmpv6_nd_ra_flag_h,
{ "Home Agent", "icmpv6.nd.ra.flag.h", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ND_RA_FLAG_H,
"When set, it indicate that the router sending this Router Advertisement is also functioning as a Mobile IPv6 home agent on this link", HFILL }},
{ &hf_icmpv6_nd_ra_flag_prf,
{ "Prf (Default Router Preference)", "icmpv6.nd.ra.flag.prf", FT_UINT8, BASE_DEC, VALS(nd_flag_router_pref), ND_RA_FLAG_PRF,
"Indicates whether to prefer this router over other default routers", HFILL }},
{ &hf_icmpv6_nd_ra_flag_p,
{ "Proxy", "icmpv6.nd.ra.flag.p", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ND_RA_FLAG_P,
NULL, HFILL }},
{ &hf_icmpv6_nd_ra_flag_rsv,
{ "Reserved", "icmpv6.nd.ra.flag.rsv", FT_UINT8, BASE_DEC, NULL, ND_RA_FLAG_RSV,
"Must be Zero", HFILL }},
{ &hf_icmpv6_nd_ra_router_lifetime,
{ "Router lifetime (s)", "icmpv6.nd.ra.router_lifetime", FT_UINT16, BASE_DEC, NULL, 0x0,
"The lifetime associated with the default router", HFILL }},
{ &hf_icmpv6_nd_ra_reachable_time,
{ "Reachable time (ms)", "icmpv6.nd.ra.reachable_time", FT_UINT32, BASE_DEC, NULL, 0x0,
"The time that a node assumes a neighbor is reachable after having received a reachability confirmation", HFILL }},
{ &hf_icmpv6_nd_ra_retrans_timer,
{ "Retrans timer (ms)", "icmpv6.nd.ra.retrans_timer", FT_UINT32, BASE_DEC, NULL, 0x0,
"The time between retransmitted Neighbor Solicitation messages", HFILL }},
{ &hf_icmpv6_nd_ns_target_address,
{ "Target Address", "icmpv6.nd.ns.target_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"The IP address of the target of the solicitation", HFILL }},
{ &hf_icmpv6_nd_na_flag,
{ "Flags", "icmpv6.nd.na.flag", FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_nd_na_flag_r,
{ "Router", "icmpv6.nd.na.flag.r", FT_BOOLEAN, 32, TFS(&tfs_set_notset), ND_NA_FLAG_R,
"When set, it indicates that the sender is a router", HFILL }},
{ &hf_icmpv6_nd_na_flag_s,
{ "Solicited", "icmpv6.nd.na.flag.s", FT_BOOLEAN, 32, TFS(&tfs_set_notset), ND_NA_FLAG_S,
"When set, it indicates that the advertisement was sent in response to a Neighbor Solicitation from the Destination address", HFILL }},
{ &hf_icmpv6_nd_na_flag_o,
{ "Override", "icmpv6.nd.na.flag.o", FT_BOOLEAN, 32, TFS(&tfs_set_notset), ND_NA_FLAG_O,
"When set, it indicates that the advertisement should override an existing cache entry and update the cached link-layer address", HFILL }},
{ &hf_icmpv6_nd_na_flag_rsv,
{ "Reserved", "icmpv6.nd.na.flag.rsv", FT_UINT32, BASE_DEC, NULL, ND_NA_FLAG_RSV,
"Must be Zero", HFILL }},
{ &hf_icmpv6_nd_na_target_address,
{ "Target Address", "icmpv6.nd.na.target_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"the Target Address field in the Neighbor Solicitation message that prompted this advertisement", HFILL }},
{ &hf_icmpv6_nd_rd_target_address,
{ "Target Address", "icmpv6.nd.rd.target_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"An IP address that is a better first hop to use for the ICMP Destination Address", HFILL }},
{ &hf_icmpv6_nd_rd_destination_address,
{ "Destination Address", "icmpv6.rd.na.destination_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"The IP address of the destination that is redirected to the target", HFILL }},
{ &hf_icmpv6_opt,
{ "ICMPv6 Option", "icmpv6.opt", FT_NONE, BASE_NONE, NULL, 0x0,
"Option", HFILL }},
{ &hf_icmpv6_opt_type,
{ "Type", "icmpv6.opt.type", FT_UINT8, BASE_DEC, VALS(option_vals), 0x0,
"Options type", HFILL }},
{ &hf_icmpv6_opt_length,
{ "Length", "icmpv6.opt.length", FT_UINT8, BASE_DEC, NULL, 0x0,
"The length (in units of 8 bytes) of the option (including the Type and Length fields)", HFILL }},
{ &hf_icmpv6_opt_reserved,
{ "Reserved", "icmpv6.opt.reserved", FT_NONE, BASE_NONE, NULL, 0x0,
"Reserved (Must be 0)", HFILL }},
{ &hf_icmpv6_opt_padding,
{ "Padding", "icmpv6.opt.padding", FT_NONE, BASE_NONE, NULL, 0x0,
"Padding (Must be 0)", HFILL }},
{ &hf_icmpv6_opt_linkaddr,
{ "Link-layer address", "icmpv6.opt.linkaddr", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_src_linkaddr,
{ "Source Link-layer address", "icmpv6.opt.src_linkaddr", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_target_linkaddr,
{ "Target Link-layer address", "icmpv6.opt.target_linkaddr", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_linkaddr_mac,
{ "Link-layer address", "icmpv6.opt.linkaddr", FT_ETHER, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_src_linkaddr_mac,
{ "Source Link-layer address", "icmpv6.opt.src_linkaddr", FT_ETHER, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_target_linkaddr_mac,
{ "Target Link-layer address", "icmpv6.opt.target_linkaddr", FT_ETHER, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_linkaddr_eui64,
{ "Link-layer address", "icmpv6.opt.linkaddr_eui64", FT_EUI64, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_src_linkaddr_eui64,
{ "Source Link-layer address", "icmpv6.opt.src_linkaddr_eui64", FT_EUI64, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_target_linkaddr_eui64,
{ "Target Link-layer address", "icmpv6.opt.target_linkaddr_eui64", FT_EUI64, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_prefix_len,
{ "Prefix Length", "icmpv6.opt.prefix.length", FT_UINT8, BASE_DEC, NULL, 0x0,
"The number of leading bits in the Prefix that are valid", HFILL }},
{ &hf_icmpv6_opt_prefix_flag,
{ "Flag", "icmpv6.opt.prefix.flag", FT_UINT8, BASE_HEX, NULL, 0x00,
NULL, HFILL }},
{ &hf_icmpv6_opt_prefix_flag_l,
{ "On-link flag(L)", "icmpv6.opt.prefix.flag.l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80,
"When set, indicates that this prefix can be used for on-link determination", HFILL }},
{ &hf_icmpv6_opt_prefix_flag_a,
{ "Autonomous address-configuration flag(A)", "icmpv6.opt.prefix.flag.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40,
"When set indicates that this prefix can be used for stateless address configuration", HFILL }},
{ &hf_icmpv6_opt_prefix_flag_r,
{ "Router address flag(R)", "icmpv6.opt.prefix.flag.r", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x20,
"When set indicates that the Prefix field contains a complete IP address assigned to the sending router", HFILL }},
{ &hf_icmpv6_opt_prefix_flag_reserved,
{ "Reserved", "icmpv6.opt.prefix.flag.reserved", FT_UINT8, BASE_DEC, NULL, 0x1f,
NULL, HFILL }},
{ &hf_icmpv6_opt_prefix_valid_lifetime,
{ "Valid Lifetime", "icmpv6.opt.prefix.valid_lifetime", FT_UINT32, BASE_DEC, NULL, 0x00,
"The length of time in seconds that the prefix is valid for the purpose of on-link determination", HFILL }},
{ &hf_icmpv6_opt_prefix_preferred_lifetime,
{ "Preferred Lifetime", "icmpv6.opt.prefix.preferred_lifetime", FT_UINT32, BASE_DEC, NULL, 0x00,
"The length of time in seconds that addresses generated from the prefix via stateless address autoconfiguration remain preferred", HFILL }},
{ &hf_icmpv6_opt_prefix,
{ "Prefix", "icmpv6.opt.prefix", FT_IPv6, BASE_NONE, NULL, 0x00,
"An IP address or a prefix of an IP address", HFILL }},
{ &hf_icmpv6_opt_cga_pad_len,
{ "Pad Length", "icmpv6.opt.cga.pad_length", FT_UINT8, BASE_DEC, NULL, 0x0,
"Pad Length (in bytes)", HFILL }},
{ &hf_icmpv6_opt_cga,
{ "CGA", "icmpv6.opt.cga", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_cga_modifier,
{ "Modifier", "icmpv6.opt.cga.modifier", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_cga_subnet_prefix,
{ "Subnet Prefix", "icmpv6.opt.cga.subnet_prefix", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_cga_count,
{ "Count", "icmpv6.opt.cga.count", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_cga_ext_type,
{ "Ext Type", "icmpv6.opt.cga.ext_type", FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_cga_ext_length,
{ "Ext Length", "icmpv6.opt.cga.ext_length", FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_cga_ext_data,
{ "Ext Data", "icmpv6.opt.cga.ext_data", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_rsa_key_hash,
{ "Key Hash", "icmpv6.opt.rsa.key_hash", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_digital_signature_padding,
{ "Digital Signature and Padding", "icmpv6.opt.digital_signature_padding", FT_NONE, BASE_NONE, NULL, 0x0,
"TO DO FIX ME !!", HFILL }},
{ &hf_icmpv6_opt_ps_key_hash,
{ "Key Hash", "icmpv6.opt.ps.key_hash", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_timestamp,
{ "Timestamp", "icmpv6.opt.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0,
"The value indicates the number of seconds since January 1, 1970, 00:00 UTC", HFILL }},
{ &hf_icmpv6_opt_nonce,
{ "Nonce", "icmpv6.opt.nonce", FT_BYTES, BASE_NONE, NULL, 0x0,
"A field containing a random number selected by the sender of the solicitation message", HFILL }},
{ &hf_icmpv6_opt_certificate_padding,
{ "Certificate and Padding", "icmpv6.opt.certificate_padding", FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_ipa_option_code,
{ "Option-code", "icmpv6.opt.ipa.option_code", FT_UINT8, BASE_DEC, VALS(nd_opt_ipa_option_code_val), 0x00,
NULL, HFILL }},
{ &hf_icmpv6_opt_ipa_prefix_len,
{ "Prefix Length", "icmpv6.opt.ipa.prefix_len", FT_UINT8, BASE_DEC, NULL, 0x00,
"That indicates the length of the IPv6 Address Prefix", HFILL }},
{ &hf_icmpv6_opt_ipa_ipv6_address,
{ "IPv6 Address", "icmpv6.opt.ipa.ipv6_address", FT_IPv6, BASE_NONE, NULL, 0x00,
"The IP address/prefix defined by the Option-Code field", HFILL }},
{ &hf_icmpv6_opt_nrpi_option_code,
{ "Option-code", "icmpv6.opt.nrpi.option_code", FT_UINT8, BASE_DEC, NULL, 0x00,
NULL, HFILL }},
{ &hf_icmpv6_opt_nrpi_prefix_len,
{ "Prefix Length", "icmpv6.opt.nrpi.prefix_len", FT_UINT8, BASE_DEC, NULL, 0x00,
"The number of leading bits in the Prefix that are valid", HFILL }},
{ &hf_icmpv6_opt_nrpi_prefix,
{ "Prefix", "icmpv6.opt.nrpi.prefix", FT_IPv6, BASE_NONE, NULL, 0x00,
"An IP address or a prefix of an IP address", HFILL }},
{ &hf_icmpv6_opt_lla_option_code,
{ "Option-code", "icmpv6.opt.lla.option_code", FT_UINT8, BASE_DEC, VALS(nd_opt_lla_option_code_val), 0x00,
NULL, HFILL }},
{ &hf_icmpv6_opt_lla_bytes,
{ "Link-Layer Address", "icmpv6.opt.lla.bytes", FT_BYTES, BASE_NONE, NULL, 0x00,
"(in Bytes Format)", HFILL }},
{ &hf_icmpv6_opt_naack_option_code,
{ "Option-Code", "icmpv6.opt.naack.option_code", FT_UINT8, BASE_DEC, NULL, 0x00,
NULL, HFILL }},
{ &hf_icmpv6_opt_naack_status,
{ "Status", "icmpv6.opt.naack.status", FT_UINT8, BASE_DEC, VALS(nd_opt_naack_status_val), 0x00,
"Indicating the disposition of the Unsolicited Neighbor Advertisement message", HFILL }},
{ &hf_icmpv6_opt_naack_supplied_ncoa,
{ "Supplied NCoA", "icmpv6.opt.naack.supplied_ncoa", FT_IPv6, BASE_NONE, NULL, 0x00,
NULL, HFILL }},
{ &hf_icmpv6_opt_map_dist,
{ "Distance", "icmpv6.opt.map.distance", FT_UINT8, BASE_DEC, NULL, 0xF0,
"Identifying the distance between MAP and the receiver of the advertisement (in the number of hops)", HFILL }},
{ &hf_icmpv6_opt_map_pref,
{ "Preference", "icmpv6.opt.map.preference", FT_UINT8, BASE_DEC, NULL, 0x0F,
"Used as an indicator of operator preference (Highest is better)", HFILL }},
{ &hf_icmpv6_opt_map_flag,
{ "Flag", "icmpv6.opt.map.flag", FT_UINT8, BASE_HEX, NULL, 0x00,
NULL, HFILL }},
{ &hf_icmpv6_opt_map_flag_r,
{ "RCoA Flag", "icmpv6.opt.map.flag.r", FT_BOOLEAN, 8, NULL, 0x80,
"It indicates that the mobile node is allocated the RCoA by the MAP", HFILL }},
{ &hf_icmpv6_opt_map_flag_reserved,
{ "Reserved", "icmpv6.opt.map.flag.reserved", FT_UINT8, BASE_DEC, NULL, 0x7F,
"Must be 0", HFILL }},
{ &hf_icmpv6_opt_map_valid_lifetime,
{ "Valid Lifetime", "icmpv6.opt.map.valid_lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
"This value indicates the validity of the MAP's address and the RCoA.", HFILL }},
{ &hf_icmpv6_opt_map_global_address,
{ "Global Address", "icmpv6.opt.map.global_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"One of the MAP's global addresses", HFILL }},
{ &hf_icmpv6_opt_route_info_flag,
{ "Flag", "icmpv6.opt.route_info.flag", FT_UINT8, BASE_HEX, NULL, 0x00,
NULL, HFILL }},
{ &hf_icmpv6_opt_route_info_flag_route_preference,
{ "Route Preference", "icmpv6.opt.route_info.flag.route_preference", FT_UINT8, BASE_DEC, VALS(nd_flag_router_pref), ND_RA_FLAG_RTPREF_MASK,
"The Route Preference indicates whether to prefer the router associated with this prefix over others", HFILL }},
{ &hf_icmpv6_opt_route_info_flag_reserved,
{ "Reserved", "icmpv6.opt.route_info.flag.reserved", FT_UINT8, BASE_DEC, NULL, ND_RA_FLAG_RESERV_MASK,
"Must be 0", HFILL }},
{ &hf_icmpv6_opt_route_lifetime,
{ "Route Lifetime", "icmpv6.opt.route_lifetime", FT_UINT32, BASE_DEC, NULL, 0x00,
"The length of time in seconds that the prefix is valid for the purpose of route determination", HFILL }},
{ &hf_icmpv6_opt_name_type,
{ "Name Type", "icmpv6.opt.name_type", FT_UINT8, BASE_DEC, VALS(icmpv6_option_name_type_vals), 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_name_x501,
{ "DER Encoded X.501 Name", "icmpv6.opt.name_x501", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_name_fqdn,
{ "FQDN", "icmpv6.opt.name_type.fqdn", FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_cert_type,
{ "Cert Type", "icmpv6.opt.name_type", FT_UINT8, BASE_DEC, VALS(icmpv6_option_cert_type_vals), 0x0,
NULL, HFILL }},
/* RFC3971: SEcure Neighbor Discovery (SEND) */
{ &hf_icmpv6_send_identifier,
{ "Identifier", "icmpv6.send.identifier", FT_UINT16, BASE_DEC, NULL, 0x0,
"An identifier to aid in matching with Request and Reply", HFILL }},
{ &hf_icmpv6_send_all_components,
{ "All Components", "icmpv6.send.all_components", FT_UINT16, BASE_DEC, NULL, 0x0,
"Inform the receiver of the number of certificates in the entire path", HFILL }},
{ &hf_icmpv6_send_component,
{ "Component", "icmpv6.send.component", FT_UINT16, BASE_DEC, NULL, 0x0,
"If the field is set to 65,535 if the sender seeks to retrieve all certificates", HFILL }},
{ &hf_icmpv6_x509if_Name,
{ "Name", "icmpv6.x509_Name", FT_UINT32, BASE_DEC, VALS(x509if_Name_vals), 0x0,
NULL, HFILL }},
{ &hf_icmpv6_x509af_Certificate,
{ "Certificate", "icmpv6.x509_Certificate", FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_redirected_packet,
{ "Redirected Packet", "icmpv6.opt.redirected_packet", FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_mtu,
{ "MTU", "icmpv6.opt.mtu", FT_UINT32, BASE_DEC, NULL, 0x0,
"The recommended MTU for the link", HFILL }},
{ &hf_icmpv6_opt_nbma_shortcut_limit,
{ "Shortcut Limit", "icmpv6.opt.nbma.shortcut_limit", FT_UINT8, BASE_DEC, NULL, 0x0,
"Hop limit for shortcut attempt", HFILL }},
{ &hf_icmpv6_opt_advertisement_interval,
{ "Advertisement Interval", "icmpv6.opt.advertisement_interval", FT_UINT32, BASE_DEC, NULL, 0x0,
"The maximum time (in milliseconds) between successive unsolicited Router Advertisement messages sent by this router on this network interface", HFILL }},
{ &hf_icmpv6_opt_home_agent_preference,
{ "Home Agent Preference", "icmpv6.opt.home_agent_preference", FT_UINT16, BASE_DEC, NULL, 0x0,
"The preference for the home agent sending this Router Advertisement", HFILL }},
{ &hf_icmpv6_opt_home_agent_lifetime,
{ "Home Agent Preference", "icmpv6.opt.home_agent_lifetime", FT_UINT16, BASE_DEC, NULL, 0x0,
"The lifetime associated with the home agent in units of seconds.", HFILL }},
{ &hf_icmpv6_opt_ipv6_address,
{ "IPv6 Address", "icmpv6.opt.ipv6_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"IPv6 addresses of the interface", HFILL }},
{ &hf_icmpv6_opt_rdnss_lifetime,
{ "Lifetime", "icmpv6.opt.rdnss.lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_rdnss,
{ "Recursive DNS Servers", "icmpv6.opt.rdnss", FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_efo,
{ "Flags Expansion Option", "icmpv6.opt.efo", FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_efo_m,
{ "Managed address configuration", "icmpv6.opt.efo.m", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_M,
"When set, it indicates that addresses are available via DHCPv6", HFILL }},
{ &hf_icmpv6_opt_efo_o,
{ "Other configuration", "icmpv6.opt.efo.o", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_O,
"When set, it indicates that other configuration information is available via DHCPv6", HFILL }},
{ &hf_icmpv6_opt_efo_h,
{ "Home Agent", "icmpv6.opt.efo.h", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_H,
"When set, it indicate that the router sending this Router Advertisement is also functioning as a Mobile IPv6 home agent on this link", HFILL }},
{ &hf_icmpv6_opt_efo_prf,
{ "Prf (Default Router Preference)", "icmpv6.opt.efo.prf", FT_UINT16, BASE_DEC, VALS(nd_flag_router_pref), FLAGS_EO_PRF,
"Indicates whether to prefer this router over other default routers", HFILL }},
{ &hf_icmpv6_opt_efo_p,
{ "Proxy", "icmpv6.opt.efo.p", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_P,
NULL, HFILL }},
{ &hf_icmpv6_opt_efo_rsv,
{ "Reserved", "icmpv6.opt.efo.rsv", FT_UINT16, BASE_DEC, NULL, FLAGS_EO_RSV,
"Must be Zero", HFILL }},
{ &hf_icmpv6_opt_hkr_pad_length,
{ "Pad Length", "icmpv6.opt.hkr.pad_length", FT_UINT8, BASE_DEC, NULL, 0x0,
"The number of padding octets beyond the end of the Handover Key", HFILL }},
{ &hf_icmpv6_opt_hkr_at,
{ "AT", "icmpv6.opt.hkr.at", FT_UINT8, BASE_DEC, NULL, 0xF0,
"The algorithm type field describing the algorithm used by FMIPv6 to calculate the authenticator", HFILL }},
{ &hf_icmpv6_opt_hkr_reserved,
{ "Reserved", "icmpv6.opt.hkr.reserved", FT_UINT8, BASE_DEC, NULL, 0x0F,
"Reserved (Must be Zero)", HFILL }},
{ &hf_icmpv6_opt_hkr_encryption_public_key,
{ "Handover Key Encryption Public Key", "icmpv6.opt.hkr.encryption_public_key", FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_hkr_padding,
{ "Padding", "icmpv6.opt.hkr.padding", FT_BYTES, BASE_NONE, NULL, 0x0,
"A variable-length field making the option length a multiple of 8", HFILL }},
{ &hf_icmpv6_opt_hkr_lifetime,
{ "Padding", "icmpv6.opt.hkr.lifetime", FT_UINT16, BASE_DEC, NULL, 0x0,
"Lifetime of the handover key (in seconds)", HFILL }},
{ &hf_icmpv6_opt_hkr_encrypted_handover_key,
{ "Encrypted Handover Key", "icmpv6.opt.hkr.encrypted_handover_key", FT_BYTES, BASE_NONE, NULL, 0x0,
"The shared handover key, encrypted with the MN's handover key encryption public key", HFILL }},
{ &hf_icmpv6_opt_hai_option_code,
{ "Option-Code", "icmpv6.opt.hai.option_code", FT_UINT8, BASE_DEC, VALS(nd_opt_hai_option_code_val), 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_hai_length,
{ "HAI-Length", "icmpv6.opt.hai.length", FT_UINT8, BASE_DEC, NULL, 0x0,
"The size of the HAI-Value field in octets", HFILL }},
{ &hf_icmpv6_opt_hai_value,
{ "HAI-Value", "icmpv6.opt.hai.value", FT_BYTES, BASE_NONE, NULL, 0x0,
"The value specified by the Option-Code", HFILL }},
{ &hf_icmpv6_opt_mn_option_code,
{ "Option-Code", "icmpv6.opt.mn.option_code", FT_UINT8, BASE_DEC, VALS(nd_opt_mn_option_code_val), 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_mn_length,
{ "MN-Length", "icmpv6.opt.mn.length", FT_UINT8, BASE_DEC, NULL, 0x0,
"The size of the MN-Value field in octets", HFILL }},
{ &hf_icmpv6_opt_mn_value,
{ "MN-Value", "icmpv6.opt.mn.value", FT_BYTES, BASE_NONE, NULL, 0x0,
"The value specified by the Option-Code", HFILL }},
{ &hf_icmpv6_opt_dnssl_lifetime,
{ "Lifetime", "icmpv6.opt.dnssl.lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_dnssl,
{ "Domain Names", "icmpv6.opt.dnssl", FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_opt_aro_status,
{ "Status", "icmpv6.opt.aro.status", FT_UINT8, BASE_DEC, VALS(nd_opt_6lowpannd_status_val), 0x00,
"Indicates the status of a registration in the NA response", HFILL }},
{ &hf_icmpv6_opt_aro_registration_lifetime,
{ "Registration Lifetime", "icmpv6.opt.aro.registration_lifetime", FT_UINT16, BASE_DEC, NULL, 0x00,
"The amount of time (in a unit of 60 seconds) that the router should retain the Neighbor Cache entry", HFILL }},
{ &hf_icmpv6_opt_aro_eui64,
{ "EUI-64", "icmpv6.opt.aro.eui64", FT_EUI64, BASE_NONE, NULL, 0x00,
"This field is used to uniquely identify the interface of the registered address", HFILL }},
{ &hf_icmpv6_opt_6co_context_length,
{ "Context Length", "icmpv6.opt.6co.context_length", FT_UINT8, BASE_DEC, NULL, 0x00,
"The number of leading bits in the Context Prefix field that are valid", HFILL }},
{ &hf_icmpv6_opt_6co_flag,
{ "Flag", "icmpv6.opt.6co.flag", FT_UINT8, BASE_HEX, NULL, 0x00,
NULL, HFILL }},
{ &hf_icmpv6_opt_6co_flag_c,
{ "Compression Flag", "icmpv6.opt.6co.flag.c", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ND_OPT_6CO_FLAG_C,
"This flag indicates if the context is valid for use in compression", HFILL }},
{ &hf_icmpv6_opt_6co_flag_cid,
{ "CID", "icmpv6.opt.6co.flag.cid", FT_UINT8, BASE_DEC, NULL, ND_OPT_6CO_FLAG_CID,
"Context Identifier for this prefix information", HFILL }},
{ &hf_icmpv6_opt_6co_flag_reserved,
{ "Reserved", "icmpv6.opt.6co.flag.reserved", FT_UINT8, BASE_DEC, NULL, ND_OPT_6CO_FLAG_RESERVED,
"Must be zero", HFILL }},
{ &hf_icmpv6_opt_6co_valid_lifetime,
{ "Lifetime", "icmpv6.opt.6co.valid_lifetime", FT_UINT16, BASE_DEC, NULL, 0x00,
"The length of time in a unit of 60 seconds that the context is valid for the purpose of header compression or decompression", HFILL }},
{ &hf_icmpv6_opt_6co_context_prefix,
{ "Context Prefix", "icmpv6.opt.6co.context_prefix", FT_IPv6, BASE_NONE, NULL, 0x00,
"The IPv6 prefix or address corresponding to the Context ID (CID) field", HFILL }},
{ &hf_icmpv6_opt_abro_version_low,
{ "Version Low", "icmpv6.opt.abro.version_low", FT_UINT16, BASE_DEC, NULL, 0x00,
"The version number low (the least significant 16 bits) corresponding to this set of information contained in the RA message", HFILL }},
{ &hf_icmpv6_opt_abro_version_high,
{ "Version", "icmpv6.opt.abro.version_high", FT_UINT16, BASE_DEC, NULL, 0x00,
"The version number high (most significant 16 bits) corresponding to this set of information contained in the RA message", HFILL }},
{ &hf_icmpv6_opt_abro_valid_lifetime,
{ "Valid Lifetime", "icmpv6.opt.abro.valid_lifetime", FT_UINT16, BASE_DEC, NULL, 0x00,
"The length of time in a unit of 60 seconds (relative to the time the packet is received) that this set of border router information is valid.", HFILL }},
{ &hf_icmpv6_opt_abro_6lbr_address,
{ "6LBR Address", "icmpv6.opt.abro.6lbr_address", FT_IPv6, BASE_NONE, NULL, 0x00,
"IPv6 address of the 6LBR that is the origin of the included version number", HFILL }},
/* RFC2710: Multicast Listener Discovery for IPv6 */
{ &hf_icmpv6_mld_mrd,
{ "Maximum Response Delay [ms]", "icmpv6.mld.maximum_response_delay", FT_UINT16, BASE_DEC, NULL, 0x0,
"Specifies the maximum allowed delay before sending a responding Report, in units of milliseconds", HFILL }},
{ &hf_icmpv6_mld_multicast_address,
{ "Multicast Address", "icmpv6.mld.multicast_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"Specific IPv6 multicast address", HFILL }},
/* RFC 2894: Router Renumbering for IPv6 */
{ &hf_icmpv6_rr_sequencenumber,
{ "Sequence Number", "icmpv6.rr.sequence_number", FT_UINT32, BASE_DEC, NULL, 0x0,
"The sequence number MUST be non-decreasing between Sequence Number Resets", HFILL }},
{ &hf_icmpv6_rr_segmentnumber,
{ "Segment Number", "icmpv6.rr.segment_number", FT_UINT8, BASE_DEC, NULL, 0x0,
"Enumerates different valid RR messages having the same Sequence Number", HFILL }},
{ &hf_icmpv6_rr_flag,
{ "Flags", "icmpv6.rr.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
"Five are defined and three bits are reserved", HFILL }},
{ &hf_icmpv6_rr_flag_t,
{ "Test Command", "icmpv6.rr.flag.t", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RR_FLAG_T,
"Indicates a Test message: processing is to be simulated and no configuration changes are to be made", HFILL }},
{ &hf_icmpv6_rr_flag_r,
{ "Result requested", "icmpv6.rr.flag.r", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RR_FLAG_R,
"Indicates that the router send a Result message upon completion of processing the Command message", HFILL }},
{ &hf_icmpv6_rr_flag_a,
{ "All Interfaces", "icmpv6.rr.flag.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RR_FLAG_A,
"Indicates that the Command be applied to all interfaces regardless of administrative shutdown status", HFILL }},
{ &hf_icmpv6_rr_flag_s,
{ "Site-specific", "icmpv6.rr.flag.s", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RR_FLAG_S,
"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 }},
{ &hf_icmpv6_rr_flag_p,
{ "Processed previously", "icmpv6.rr.flag.p", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RR_FLAG_P,
"Indicates that the Command message was previously processed (and is not a Test) and the responding router is not processing it again", HFILL }},
{ &hf_icmpv6_rr_flag_rsv,
{ "Reserved", "icmpv6.rr.flag.rsv", FT_UINT8, BASE_DEC, NULL, RR_FLAG_RSV,
"Must be Zero", HFILL }},
{ &hf_icmpv6_rr_maxdelay,
{ "Max Delay", "icmpv6.rr.maxdelay", FT_UINT16, BASE_DEC, NULL, 0x0,
"Specifying the maximum time (in milliseconds) by which a router MUST delay sending any reply to this Command", HFILL }},
{ &hf_icmpv6_rr_pco_mp_part,
{ "Match-Prefix Part", "icmpv6.rr.pco.mp", FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rr_pco_mp_opcode,
{ "OpCode", "icmpv6.rr.pco.mp.opcode", FT_UINT8, BASE_DEC, VALS(rr_pco_mp_opcode_val), 0x0,
"Specifying the operation to be performed when the associated MatchPrefix matches an interface's prefix or address", HFILL }},
{ &hf_icmpv6_rr_pco_mp_oplength,
{ "OpLength", "icmpv6.rr.pco.mp.oplength", FT_UINT8, BASE_DEC, NULL, 0x0,
"The total length of this Prefix Control Operation (in units of 8 octets)", HFILL }},
{ &hf_icmpv6_rr_pco_mp_ordinal,
{ "Ordinal", "icmpv6.rr.pco.mp.ordinal", FT_UINT8, BASE_HEX, NULL, 0x0,
"The value is otherwise unconstrained", HFILL }},
{ &hf_icmpv6_rr_pco_mp_matchlen,
{ "MatchLen", "icmpv6.rr.pco.mp.matchlen", FT_UINT8, BASE_DEC, NULL, 0x0,
"Between 0 and 128 inclusive specifying the number of initial bits of MatchPrefix which are significant in matching", HFILL }},
{ &hf_icmpv6_rr_pco_mp_minlen,
{ "MinLen", "icmpv6.rr.pco.mp.minlen", FT_UINT8, BASE_DEC, NULL, 0x0,
"Specifying the minimum length which any configured prefix must have in order to be eligible for testing against the MatchPrefix", HFILL }},
{ &hf_icmpv6_rr_pco_mp_maxlen,
{ "MaxLen", "icmpv6.rr.pco.mp.maxlen", FT_UINT8, BASE_DEC, NULL, 0x0,
"Specifying the maximum length which any configured prefix must have in order to be eligible for testing against the MatchPrefix", HFILL }},
{ &hf_icmpv6_rr_pco_mp_matchprefix,
{ "MatchPrefix", "icmpv6.rr.pco.mp.matchprefix", FT_IPv6, BASE_NONE, NULL, 0x0,
"The 128-bit prefix to be compared with each interface's prefix or address", HFILL }},
{ &hf_icmpv6_rr_pco_up_part,
{ "Use-Prefix Part", "icmpv6.rr.pco.up", FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rr_pco_up_uselen,
{ "UseLen", "icmpv6.rr.pco.up.uselen", FT_UINT8, BASE_DEC, NULL, 0x0,
"specifying the number of initial bits of UsePrefix to use in creating a new prefix for an interface", HFILL }},
{ &hf_icmpv6_rr_pco_up_keeplen,
{ "KeepLen", "icmpv6.rr.pco.up.keeplen", FT_UINT8, BASE_DEC, NULL, 0x0,
"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 }},
{ &hf_icmpv6_rr_pco_up_flagmask,
{ "FlagMask", "icmpv6.rr.pco.up.flagmask", FT_UINT8, BASE_HEX, NULL, 0x0,
"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 }},
{ &hf_icmpv6_rr_pco_up_flagmask_l,
{ "On-link flag(L)", "icmpv6.rr.pco.up.flagmask.l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80,
"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 }},
{ &hf_icmpv6_rr_pco_up_flagmask_a,
{ "Autonomous address-configuration flag(A)", "icmpv6.rr.pco.up.flagmask.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40,
"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 }},
{ &hf_icmpv6_rr_pco_up_flagmask_reserved,
{ "Reserved", "icmpv6.rr.pco.up.flagmask.reserved", FT_UINT8, BASE_DEC, NULL, 0x3f,
NULL, HFILL }},
{ &hf_icmpv6_rr_pco_up_raflags,
{ "RAFlags", "icmpv6.rr.pco.up.raflags", FT_UINT8, BASE_HEX, NULL, 0x0,
"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 }},
{ &hf_icmpv6_rr_pco_up_raflags_l,
{ "On-link flag(L)", "icmpv6.rr.pco.up.flagmask.l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80,
"When set, indicates that this prefix can be used for on-link determination", HFILL }},
{ &hf_icmpv6_rr_pco_up_raflags_a,
{ "Autonomous address-configuration flag(A)", "icmpv6.rr.pco.up.flagmask.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40,
"When set indicates that this prefix can be used for stateless address configuration", HFILL }},
{ &hf_icmpv6_rr_pco_up_raflags_reserved,
{ "Reserved", "icmpv6.rr.pco.up.flagmask.reserved", FT_UINT8, BASE_DEC, NULL, 0x3f,
NULL, HFILL }},
{ &hf_icmpv6_rr_pco_up_validlifetime,
{ "Valid Lifetime", "icmpv6.rr.pco.up.validlifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
"The number of seconds for which the New Prefix will be valid", HFILL }},
{ &hf_icmpv6_rr_pco_up_preferredlifetime,
{ "Preferred Lifetime", "icmpv6.rr.pco.up.preferredlifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
"The number of seconds for which the New Prefix will be preferred", HFILL }},
{ &hf_icmpv6_rr_pco_up_flag,
{ "Flags", "icmpv6.rr.pco.up.flag", FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rr_pco_up_flag_v,
{ "Decrement valid lifetime", "icmpv6.rr.pco.up.flag.v", FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x80000000,
"When set, indicating that the valid lifetime of the New Prefix MUST be effectively decremented in real time", HFILL }},
{ &hf_icmpv6_rr_pco_up_flag_p,
{ "Decrement preferred lifetime", "icmpv6.rr.pco.up.flag.p", FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x40000000,
"When set, indicating that the preferred lifetime of the New Prefix MUST be effectively decremented in real time", HFILL }},
{ &hf_icmpv6_rr_pco_up_flag_reserved,
{ "Reserved", "icmpv6.rr.pco.up.flag.reserved", FT_UINT32, BASE_DEC, NULL, 0x3FFFFFFF,
NULL, HFILL }},
{ &hf_icmpv6_rr_pco_up_useprefix,
{ "UsePrefix", "icmpv6.rr.pco.up.useprefix", FT_IPv6, BASE_NONE, NULL, 0x0,
"The 128-bit Use-prefix which either becomes or is used in forming (if KeepLen is nonzero) the New Prefix", HFILL }},
{ &hf_icmpv6_rr_rm,
{ "Result Message", "icmpv6.rr.rm", FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rr_rm_flag,
{ "Flags", "icmpv6.rr.rm.flag", FT_UINT16, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rr_rm_flag_b,
{ "Bounds", "icmpv6.rr.rm.flag.b", FT_BOOLEAN, 16, TFS(&tfs_set_notset), 0x0002,
"When set, indicates that one or more fields in the associated PCO were out of bounds", HFILL }},
{ &hf_icmpv6_rr_rm_flag_f,
{ "Forbidden", "icmpv6.rr.rm.flag.f", FT_BOOLEAN, 16, TFS(&tfs_set_notset), 0x0001,
"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 }},
{ &hf_icmpv6_rr_rm_flag_reserved,
{ "Reserved", "icmpv6.rr.rm.flag.reserved", FT_UINT16, BASE_DEC, NULL, 0xFFFC,
"Must be Zero", HFILL }},
{ &hf_icmpv6_rr_rm_ordinal,
{ "Ordinal", "icmpv6.rr.rm.ordinal", FT_UINT8, BASE_HEX, NULL, 0x0,
"The value is otherwise unconstrained", HFILL }},
{ &hf_icmpv6_rr_rm_matchedlen,
{ "MatchedLen", "icmpv6.rr.rm.matchedlen", FT_UINT8, BASE_DEC, NULL, 0x0,
"The length of the Matched Prefix", HFILL }},
{ &hf_icmpv6_rr_rm_interfaceindex,
{ "InterfaceIndex", "icmpv6.rr.rm.interfaceindex", FT_UINT32, BASE_DEC, NULL, 0x0,
"The router's numeric designation of the interface on which the MatchedPrefix was configured", HFILL }},
{ &hf_icmpv6_rr_rm_matchedprefix,
{ "MatchedPrefix", "icmpv6.rr.rm.matchedprefix", FT_IPv6, BASE_NONE, NULL, 0x0,
"The 128 Bits MatchedPrefix", HFILL }},
/* RFC3775/6275: Mobility Support in IPv6 */
{ &hf_icmpv6_mip6_identifier,
{ "Identifier", "icmpv6.mip6.identifier", FT_UINT16, BASE_DEC_HEX, NULL, 0x0,
"An identifier to aid in matching with Request and Reply", HFILL }},
{ &hf_icmpv6_mip6_home_agent_address,
{ "Home Agent Address", "icmpv6.mip6.home_agent_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"A list of addresses of home agents on the home link for the mobile node", HFILL }},
{ &hf_icmpv6_mip6_flag,
{ "Flags", "icmpv6.mip6.flag", FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_mip6_flag_m,
{ "Managed address configuration", "icmpv6.mip6.flag.m", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_M,
"When set, it indicates that addresses are available via DHCPv6", HFILL }},
{ &hf_icmpv6_mip6_flag_o,
{ "Other configuration", "icmpv6.mip6.flag.o", FT_BOOLEAN, 16, TFS(&tfs_set_notset), FLAGS_EO_O,
"When set, it indicates that other configuration information is available via DHCPv6", HFILL }},
{ &hf_icmpv6_mip6_flag_rsv,
{ "Reserved", "icmpv6.mip6.flag.rsv", FT_UINT16, BASE_DEC, NULL, 0x2FFF,
"Must be Zero", HFILL }},
/* RFC3810: Multicast Listener Discovery Version 2 (MLDv2) for IPv6 */
{ &hf_icmpv6_mld_mrc,
{ "Maximum Response Code", "icmpv6.mld.maximum_response_code", FT_UINT16, BASE_DEC, NULL, 0x0,
"Specifies the maximum allowed delay before sending a responding Report", HFILL }},
{ &hf_icmpv6_mld_flag,
{ "Flags", "icmpv6.mld.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_mld_flag_s,
{ "Suppress Router-Side Processing", "icmpv6.mld.flag.s", FT_BOOLEAN, 8, NULL, MLD_FLAG_S,
"Indicates to any receiving multicast routers that they have to suppress the normal timer updates they perform upon hearing a Query", HFILL }},
{ &hf_icmpv6_mld_flag_qrv,
{ "QRV (Querier's Robustness Variable)", "icmpv6.mld.flag.qrv", FT_UINT8, BASE_DEC, NULL, MLD_FLAG_QRV,
"Contains the RV (Robustness Variable) value used by the Querier", HFILL }},
{ &hf_icmpv6_mld_flag_rsv,
{ "Reserved", "icmpv6.mld.flag.reserved", FT_UINT8, BASE_DEC, NULL, MLD_FLAG_RSV,
"Must Be Zero", HFILL }},
{ &hf_icmpv6_mld_qqi,
{ "QQIC (Querier's Query Interval Code)", "icmpv6.mld.qqi", FT_UINT8, BASE_DEC, NULL, 0x0,
"Specifies the QI (Query Interval) used by the Querier", HFILL }},
{ &hf_icmpv6_mld_nb_sources,
{ "Number of Sources", "icmpv6.mld.nb_sources", FT_UINT16, BASE_DEC, NULL, 0x0,
"Specifies how many source addresses are present in the Query", HFILL }},
{ &hf_icmpv6_mld_source_address,
{ "Source Address", "icmpv6.mld.source_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"The Source Address fields are a vector of unicast addresses", HFILL }},
{ &hf_icmpv6_mldr_nb_mcast_records,
{ "Number of Multicast Address Records", "icmpv6.mldr.nb_mcast_records", FT_UINT16, BASE_DEC, NULL, 0x0,
"Specifies how many Multicast Address Records are present in this Report", HFILL }},
{ &hf_icmpv6_mldr_mar,
{ "Multicast Address Record", "icmpv6.mldr.mar", FT_NONE, BASE_NONE, NULL, 0x0,
"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 }},
{ &hf_icmpv6_mldr_mar_record_type,
{ "Record Type", "icmpv6.mldr.mar.record_type", FT_UINT8, BASE_DEC, VALS(mldr_record_type_val), 0x0,
"It specifies the type of the Multicast Address Record", HFILL }},
{ &hf_icmpv6_mldr_mar_aux_data_len,
{ "Aux Data Len", "icmpv6.mldr.mar.aux_data_len", FT_UINT8, BASE_DEC, NULL, 0x0,
"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 }},
{ &hf_icmpv6_mldr_mar_nb_sources,
{ "Number of Sources", "icmpv6.mldr.mar.nb_sources", FT_UINT16, BASE_DEC, NULL, 0x0,
"The Number of Sources field specifies how many source addresses are present in this Multicast Address Record", HFILL }},
{ &hf_icmpv6_mldr_mar_multicast_address,
{ "Multicast Address", "icmpv6.mldr.mar.multicast_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"The Multicast Address field contains the multicast address to which this Multicast Address Record pertains", HFILL }},
{ &hf_icmpv6_mldr_mar_source_address,
{ "Source Address", "icmpv6.mldr.mar.source_address", FT_IPv6, BASE_NONE, NULL, 0x0,
"The Source Address fields are a vector of unicast addresses", HFILL }},
{ &hf_icmpv6_mldr_mar_auxiliary_data,
{ "Auxiliary Data", "icmpv6.mldr.mar.auxiliary_data", FT_BYTES, BASE_NONE, NULL, 0x0,
"Contains additional information that pertain to this Multicast Address Record", HFILL }},
/* RFC 4068/5268/5568: Fast Handovers for Mobile IPv6 ( Mobile IPv6 Fast Handovers ) */
{ &hf_icmpv6_fmip6_subtype,
{ "Subtype", "icmpv6.fmip6.subtype", FT_UINT8, BASE_DEC, VALS(fmip6_subtype_val), 0x0,
"Designates the Subtype of information", HFILL }},
{ &hf_icmpv6_fmip6_hi_flag,
{ "Flag", "icmpv6.fmip6.hi.flag", FT_UINT8, BASE_HEX, NULL, 0x00,
NULL, HFILL }},
{ &hf_icmpv6_fmip6_hi_flag_s,
{ "Assigned address configuration", "icmpv6.fmip6.hi.flag.s", FT_BOOLEAN, 8, TFS(&tfs_set_notset), FMIP6_HI_FLAG_S,
"When set, this message requests a new CoA to be returned by the destination", HFILL }},
{ &hf_icmpv6_fmip6_hi_flag_u,
{ "Buffer", "icmpv6.fmip6.hi.flag.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), FMIP6_HI_FLAG_U,
"When set, the destination SHOULD buffer any packets toward the node indicated in the options of this message", HFILL }},
{ &hf_icmpv6_fmip6_hi_flag_reserved,
{ "Reserved", "icmpv6.fmip6.hi.flag.reserved", FT_UINT8, BASE_DEC, NULL, FMIP6_HI_FLAG_RSV,
NULL, HFILL }},
{ &hf_icmpv6_fmip6_identifier,
{ "Identifier", "icmpv6.fmip6.identifier", FT_UINT16, BASE_DEC_HEX, NULL, 0x0,
"An identifier to aid in matching with Request and Reply", HFILL }},
/* RFC 4286: Multicast Router Discovery */
{ &hf_icmpv6_mcast_ra_query_interval,
{ "Query Interval", "icmpv6.mcast_ra.query_interval", FT_UINT16, BASE_DEC, NULL, 0x0,
"The Query Interval value (in seconds) in use by MLD on the interface.", HFILL }},
{ &hf_icmpv6_mcast_ra_robustness_variable,
{ "Robustness Variable", "icmpv6.mcast_ra.robustness_variable", FT_UINT16, BASE_DEC, NULL, 0x0,
"The Robustness Variable in use by MLD on the advertising interface", HFILL }},
/* RFC 4620: IPv6 Node Information Queries */
{ &hf_icmpv6_ni_qtype,
{ "Qtype", "icmpv6.ni.qtype", FT_UINT16, BASE_DEC, VALS(ni_qtype_val), 0x0,
"Designates the type of information", HFILL }},
{ &hf_icmpv6_ni_flag,
{ "Flags", "icmpv6.ni.flag", FT_UINT16, BASE_HEX, NULL, 0x0,
"Qtype-specific flags that may be defined for certain Query types and their Replies", HFILL }},
{ &hf_icmpv6_ni_flag_g,
{ "Global-scope addresses", "icmpv6.ni.flag.g", FT_BOOLEAN, 16, TFS(&tfs_set_notset), NI_FLAG_G,
"Global-scope addresses are requested", HFILL }},
{ &hf_icmpv6_ni_flag_s,
{ "Site-local addresses", "icmpv6.ni.flag.s", FT_BOOLEAN, 16, TFS(&tfs_set_notset), NI_FLAG_S,
"Site-local addresses are requested", HFILL }},
{ &hf_icmpv6_ni_flag_l,
{ "Link-local addresses", "icmpv6.ni.flag.l", FT_BOOLEAN, 16, TFS(&tfs_set_notset), NI_FLAG_L,
"Link-local addresses are requested", HFILL }},
{ &hf_icmpv6_ni_flag_c,
{ "Compression", "icmpv6.ni.flag.c", FT_BOOLEAN, 16, TFS(&tfs_set_notset), NI_FLAG_C,
"IPv4-compatible (now deprecated) and IPv4-mapped addresses are requested", HFILL }},
{ &hf_icmpv6_ni_flag_a,
{ "Unicast Addresses", "icmpv6.ni.flag.a", FT_BOOLEAN, 16, TFS(&tfs_ni_flag_a), NI_FLAG_A,
"Responder's unicast addresses", HFILL }},
{ &hf_icmpv6_ni_flag_t,
{ "Truncated", "icmpv6.ni.flag.t", FT_BOOLEAN, 16, TFS(&tfs_set_notset), NI_FLAG_T,
"Defined in a Reply only, indicates that the set of addresses is incomplete for space reasons", HFILL }},
{ &hf_icmpv6_ni_flag_rsv,
{ "Reserved", "icmpv6.ni.flag.rsv", FT_UINT16, BASE_HEX, NULL, NI_FLAG_RSV,
"Must be Zero", HFILL }},
{ &hf_icmpv6_ni_nonce,
{ "Nonce", "icmpv6.ni.nonce", FT_UINT64, BASE_HEX, NULL, 0x0,
"An opaque 64-bit field", HFILL }},
{ &hf_icmpv6_ni_query_subject_ipv6,
{ "IPv6 subject address", "icmpv6.ni.query.subject_ipv6", FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_ni_query_subject_fqdn,
{ "FQDN subject", "icmpv6.ni.query.subject_fqdn", FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_ni_query_subject_ipv4,
{ "IPv4 subject address", "icmpv6.ni.query.subject_ipv4", FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_ni_reply_node_ttl,
{ "TTL", "icmpv6.ni.reply.node_ttl", FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_ni_reply_node_name,
{ "Name Node", "icmpv6.ni.reply.node_name", FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_ni_reply_node_address,
{ "IPv6 Node address", "icmpv6.ni.reply.node_address", FT_IPv6, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_ni_reply_ipv4_address,
{ "IPv4 Node address", "icmpv6.ni.reply.ipv4_address", FT_IPv4, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
/* RPL: RFC 6550 : Routing over Low-Power and Lossy Networks. */
{ &hf_icmpv6_rpl_dis_flag,
{ "Flags", "icmpv6.rpl.dis.flags", FT_UINT8, BASE_DEC, NULL, 0x0,
"8-bit unused field reserved for flags", HFILL }},
{ &hf_icmpv6_rpl_dio_instance,
{ "RPLInstanceID", "icmpv6.rpl.dio.instance", FT_UINT8, BASE_DEC, NULL, 0x0,
"Set by the DODAG root that indicates which RPL Instance the DODAG is part of", HFILL }},
{ &hf_icmpv6_rpl_dio_version,
{ "Version", "icmpv6.rpl.dio.version", FT_UINT8, BASE_DEC, NULL, 0x0,
"Set by the DODAG root to the DODAGVersionNumber", HFILL }},
{ &hf_icmpv6_rpl_dio_rank,
{ "Rank", "icmpv6.rpl.dio.rank", FT_UINT16, BASE_DEC, NULL, 0x0,
"Indicating the DODAG rank of the node sending the DIO message", HFILL }},
{ &hf_icmpv6_rpl_dio_flag,
{ "Flags", "icmpv6.rpl.dio.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_dio_flag_g,
{ "Grounded (G)", "icmpv6.rpl.dio.flag.g", FT_BOOLEAN, 8, NULL, RPL_DIO_FLAG_G,
"Indicates whether the DODAG advertised can satisfy the application-defined goal", HFILL }},
{ &hf_icmpv6_rpl_dio_flag_0,
{ "Zero", "icmpv6.rpl.dio.flag.0", FT_BOOLEAN, 8, NULL, RPL_DIO_FLAG_0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_dio_flag_mop,
{ "Mode of Operation (MOP)", "icmpv6.rpl.dio.flag.mop", FT_UINT8, BASE_HEX, VALS(rpl_dio_map_val), RPL_DIO_FLAG_MOP,
"Identifies the mode of operation of the RPL Instance as administratively provisioned at and distributed by the DODAG Root", HFILL }},
{ &hf_icmpv6_rpl_dio_flag_prf,
{ "DODAG Preference", "icmpv6.rpl.dio.flag.preference", FT_UINT8, BASE_DEC, NULL, RPL_DIO_FLAG_PRF,
"Defines how preferable the root of this DODAG is compared to other DODAG roots within the instance", HFILL }},
{ &hf_icmpv6_rpl_dio_dtsn,
{ "Destination Advertisement Trigger Sequence Number (DTSN)", "icmpv6.rpl.dio.dtsn", FT_UINT8, BASE_DEC, NULL, 0x0,
"The DTSN is used as part of the procedure to maintain downward routes.", HFILL }},
{ &hf_icmpv6_rpl_dio_dagid,
{ "DODAGID", "icmpv6.rpl.dio.dagid", FT_IPv6, BASE_NONE, NULL, 0x0,
"IPv6 address set by a DODAG root which uniquely identifies a DODAG", HFILL }},
{ &hf_icmpv6_rpl_dao_instance,
{ "RPLInstanceID", "icmpv6.rpl.dao.instance", FT_UINT8, BASE_DEC, NULL, 0x0,
"Indicating the topology instance associated with the DODAG as learned from the DIO", HFILL }},
{ &hf_icmpv6_rpl_dao_flag,
{ "Flags", "icmpv6.rpl.dao.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_dao_flag_k,
{ "DAO-ACK Request (K)", "icmpv6.rpl.dao.flag.k", FT_BOOLEAN, 8, NULL, RPL_DAO_FLAG_K,
"Indicates that the recipient is expected to send a DAO-ACK back", HFILL }},
{ &hf_icmpv6_rpl_dao_flag_d,
{ "DODAGID Present (D)", "icmpv6.rpl.dao.flag.d", FT_BOOLEAN, 8, NULL, RPL_DAO_FLAG_D,
"Indicates that the DODAGID field is present", HFILL }},
{ &hf_icmpv6_rpl_dao_flag_rsv,
{ "Reserved", "icmpv6.rpl.dao.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_DAO_FLAG_RESERVED,
"Must be zero", HFILL }},
{ &hf_icmpv6_rpl_dao_sequence,
{ "DAO Sequence", "icmpv6.rpl.dao.sequence", FT_UINT8, BASE_DEC, NULL, 0x0,
"Incremented at each unique DAO message from a node and echoed in the DAO-ACK message", HFILL }},
{ &hf_icmpv6_rpl_dao_dodagid,
{ "DODAGID", "icmpv6.rpl.dao.dodagid", FT_IPv6, BASE_NONE, NULL, 0x0,
"IPv6 address set by a DODAG root which uniquely identifies a DODAG", HFILL }},
{ &hf_icmpv6_rpl_daoack_instance,
{ "RPLInstanceID", "icmpv6.rpl.daoack.instance", FT_UINT8, BASE_DEC, NULL, 0x0,
"Indicating the topology instance associated with the DODAG, as learned from the DIO", HFILL }},
{ &hf_icmpv6_rpl_daoack_flag,
{ "Flag", "icmpv6.rpl.daoack.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_daoack_flag_d,
{ "DODAGID Present (D)", "icmpv6.rpl.daoack.flag.d", FT_BOOLEAN, 8, NULL, RPL_DAOACK_FLAG_D,
"Indicates that the DODAGID field is present", HFILL }},
{ &hf_icmpv6_rpl_daoack_flag_rsv,
{ "Reserved", "icmpv6.rpl.daoack.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_DAOACK_FLAG_RESERVED,
"Must be zero", HFILL }},
{ &hf_icmpv6_rpl_daoack_sequence,
{ "DAO-ACK Sequence", "icmpv6.rpl.daoack.sequence", FT_UINT8, BASE_DEC, NULL, 0x0,
"Incremented at each DAO message from a node, and echoed in the DAO-ACK by the recipient", HFILL }},
{ &hf_icmpv6_rpl_daoack_status,
{ "Status", "icmpv6.rpl.daoack.status", FT_UINT8, BASE_DEC, NULL, 0x0,
"Indicates the completion", HFILL }},
{ &hf_icmpv6_rpl_daoack_dodagid,
{ "DODAGID", "icmpv6.rpl.daoack.dodagid", FT_IPv6, BASE_NONE, NULL, 0x0,
"IPv6 address integer set by a DODAG root which uniquely identifies a DODAG", HFILL }},
{ &hf_icmpv6_rpl_cc_instance,
{ "RPLInstanceID", "icmpv6.rpl.cc.instance", FT_UINT8, BASE_DEC, NULL, 0x0,
"Indicating the topology instance associated with the DODAG, as learned from the DIO", HFILL }},
{ &hf_icmpv6_rpl_cc_flag,
{ "Flag", "icmpv6.rpl.cc.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_cc_flag_r,
{ "Response (R)", "icmpv6.rpl.cc.flag.r", FT_BOOLEAN, 8, NULL, RPL_CC_FLAG_R,
"Indicates whether the CC message is a response", HFILL }},
{ &hf_icmpv6_rpl_cc_flag_rsv,
{ "Reserved", "icmpv6.rpl.cc.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_CC_FLAG_RESERVED,
"Must be zero", HFILL }},
{ &hf_icmpv6_rpl_cc_nonce,
{ "CC Nonce", "icmpv6.rpl.cc.nonce", FT_UINT16, BASE_HEX, NULL, 0x0,
"The corresponding CC response includes the same CC nonce value as the request, as learned from the DIO", HFILL }},
{ &hf_icmpv6_rpl_cc_dodagid,
{ "DODAGID", "icmpv6.rpl.cc.dodagid", FT_IPv6, BASE_NONE, NULL, 0x0,
"IPv6 address integer set by a DODAG root which uniquely identifies a DODAG", HFILL }},
{ &hf_icmpv6_rpl_cc_destination_counter,
{ "Destination Counter", "icmpv6.rpl.cc.destination_counter", FT_UINT32, BASE_DEC, NULL, 0x0,
"Indicating the sender's estimate of the destination's current security Counter value", HFILL }},
{ &hf_icmpv6_rpl_secure_flag,
{ "Flags", "icmpv6.rpl.secure.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_secure_flag_t,
{ "Counter is Time (T)", "icmpv6.rpl.secure.flag.t", FT_BOOLEAN, 8, NULL, RPL_SECURE_FLAG_T,
"If it is set then the Counter field is a timestamp", HFILL }},
{ &hf_icmpv6_rpl_secure_flag_rsv,
{ "Reserved", "icmpv6.rpl.secure.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_SECURE_FLAG_RSV,
"Must be zero", HFILL }},
{ &hf_icmpv6_rpl_secure_algorithm,
{ "Algorithm", "icmpv6.rpl.secure.algorithm", FT_UINT8, BASE_DEC, NULL, 0x0,
"The Security Algorithm field specifies the encryption, MAC, and signature scheme the network uses", HFILL }},
{ &hf_icmpv6_rpl_secure_algorithm_encryption,
{ "Algorithm (Encryption)", "icmpv6.rpl.secure.algorithm.encryption", FT_UINT8, BASE_DEC, VALS(rpl_secure_algorithm_encryption_val), 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_secure_algorithm_signature,
{ "Algorithm (Signature)", "icmpv6.rpl.secure.algorithm.signature", FT_UINT8, BASE_DEC, VALS(rpl_secure_algorithm_signature_val), 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_secure_kim,
{ "Key Identifier Mode (KIM)", "icmpv6.rpl.secure.kim", FT_UINT8, BASE_DEC, NULL, RPL_SECURE_KIM,
"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 }},
{ &hf_icmpv6_rpl_secure_lvl,
{ "Security Level (LVL)", "icmpv6.rpl.secure.lvl", FT_UINT8, BASE_DEC, NULL, RPL_SECURE_LVL,
"Indicates the provided packet protection", HFILL }},
{ &hf_icmpv6_rpl_secure_rsv,
{ "Reserved", "icmpv6.rpl.secure.rsv", FT_UINT8, BASE_DEC, NULL, RPL_SECURE_RSV,
"Must be zero", HFILL }},
{ &hf_icmpv6_rpl_secure_counter,
{ "Counter", "icmpv6.rpl.secure.counter", FT_UINT32, BASE_DEC, NULL, 0x0,
"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 }},
{ &hf_icmpv6_rpl_secure_key_source,
{ "Key Source", "icmpv6.rpl.secure.key.source", FT_BYTES, BASE_NONE, NULL, 0x0,
"Indicates the logical identifier of the originator of a group key", HFILL }},
{ &hf_icmpv6_rpl_secure_key_index,
{ "Key Source", "icmpv6.rpl.secure.key.index", FT_UINT8, BASE_DEC, NULL, 0x0,
"Allows unique identification of different keys with the same originator", HFILL }},
{ &hf_icmpv6_rpl_opt,
{ "ICMPv6 RPL Option", "icmpv6.opt", FT_NONE, BASE_NONE, NULL, 0x0,
"Option", HFILL }},
{ &hf_icmpv6_rpl_opt_type,
{ "Type", "icmpv6.rpl.opt.type", FT_UINT8, BASE_DEC, VALS(rpl_option_vals), 0x0,
"Options type", HFILL }},
{ &hf_icmpv6_rpl_opt_length,
{ "Length", "icmpv6.rpl.opt.length", FT_UINT8, BASE_DEC, NULL, 0x0,
"The length of the option in octets excluding the Type and Length fields", HFILL }},
{ &hf_icmpv6_rpl_opt_reserved,
{ "Reserved", "icmpv6.rpl.opt.reserved", FT_NONE, BASE_NONE, NULL, 0x0,
"Reserved (Must be 0)", HFILL }},
{ &hf_icmpv6_rpl_opt_padn,
{ "Paddn", "icmpv6.rpl.opt.padn", FT_NONE, BASE_NONE, NULL, 0x0,
"Padding (Must be 0)", HFILL }},
{ &hf_icmpv6_rpl_opt_route_prefix_length,
{ "Prefix Length", "icmpv6.rpl.opt.route.prefix_length", FT_UINT8, BASE_DEC, NULL, 0x0,
"The number of leading bits in the Prefix that are valid", HFILL }},
{ &hf_icmpv6_rpl_opt_route_flag,
{ "Flag","icmpv6.rpl.opt.route.flag", FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_opt_route_pref,
{ "Preference","icmpv6.rpl.opt.route.pref", FT_UINT8, BASE_DEC, VALS(nd_flag_router_pref), RPL_OPT_ROUTE_PREFERENCE,
"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 }},
{ &hf_icmpv6_rpl_opt_route_reserved,
{ "Reserved","icmpv6.rpl.opt.route.reserved", FT_UINT8, BASE_DEC, NULL, RPL_OPT_ROUTE_RESERVED,
"Reserved (Must be Zero)", HFILL }},
{ &hf_icmpv6_rpl_opt_route_lifetime,
{ "Route Lifetime", "icmpv6.rpl.opt.route.lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
"The length of time in seconds (relative to the time the packet is sent) that the prefix is valid for route determination", HFILL }},
{ &hf_icmpv6_rpl_opt_route_prefix,
{ "Prefix", "icmpv6.rpl.opt.route.prefix", FT_IPv6, BASE_NONE, NULL, 0x0,
"Variable-length field containing an IP address or a prefix of an IPv6 address", HFILL }},
{ &hf_icmpv6_rpl_opt_config_flag,
{ "Flag","icmpv6.rpl.opt.config.flag", FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_opt_config_reserved,
{ "Reserved","icmpv6.rpl.opt.config.reserved", FT_UINT8, BASE_DEC, NULL, RPL_OPT_CONFIG_FLAG_RESERVED,
"Must be Zero", HFILL }},
{ &hf_icmpv6_rpl_opt_config_auth,
{ "Authentication Enabled","icmpv6.rpl.opt.config.auth", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RPL_OPT_CONFIG_FLAG_AUTH,
"One bit flag describing the security mode of the network", HFILL }},
{ &hf_icmpv6_rpl_opt_config_pcs,
{ "Path Control Size", "icmpv6.rpl.opt.config.pcs", FT_UINT8, BASE_DEC, NULL, RPL_OPT_CONFIG_FLAG_PCS,
"Used to configure the number of bits that may be allocated to the Path Control field", HFILL }},
{ &hf_icmpv6_rpl_opt_config_doublings,
{ "DIOIntervalDoublings","icmpv6.rpl.opt.config.interval_double", FT_UINT8, BASE_DEC, NULL, 0x0,
"Used to configure Imax of the DIO trickle timer", HFILL }},
{ &hf_icmpv6_rpl_opt_config_min_interval,
{ "DIOIntervalMin", "icmpv6.rpl.opt.config.interval_min", FT_UINT16, BASE_DEC, NULL, 0x0,
"Used to configure Imin of the DIO trickle timer", HFILL }},
{ &hf_icmpv6_rpl_opt_config_redundancy,
{ "DIORedundancyConstant", "icmpv6.rpl.opt.config.redundancy", FT_UINT8, BASE_DEC, NULL, 0x0,
"Used to configure k of the DIO trickle timer", HFILL }},
{ &hf_icmpv6_rpl_opt_config_rank_incr,
{ "MaxRankInc", "icmpv6.rpl.opt.config.max_rank_inc", FT_UINT16, BASE_DEC, NULL, 0x0,
"Used to configure DAGMaxRankIncrease", HFILL }},
{ &hf_icmpv6_rpl_opt_config_hop_rank_inc,
{ "MinHopRankInc", "icmpv6.rpl.opt.config.min_hop_rank_inc", FT_UINT16, BASE_DEC, NULL, 0x0,
"Used to configure MinHopRankIncrease", HFILL }},
{ &hf_icmpv6_rpl_opt_config_ocp,
{ "OCP (Objective Code Point)","icmpv6.rpl.opt.config.ocp", FT_UINT16, BASE_DEC, NULL, 0x0,
"The OCP field identifies the OF and is managed by the IANA", HFILL }},
{ &hf_icmpv6_rpl_opt_config_rsv,
{ "Reserved", "icmpv6.rpl.opt.config.rsv", FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_opt_config_def_lifetime,
{ "Default Lifetime", "icmpv6.rpl.opt.config.def_lifetime", FT_UINT8, BASE_DEC, NULL, 0x0,
"This is the lifetime that is used as default for all RPL routes", HFILL }},
{ &hf_icmpv6_rpl_opt_config_lifetime_unit,
{ "Lifetime Unit", "icmpv6.rpl.opt.config.lifetime_unit", FT_UINT16, BASE_DEC, NULL, 0x0,
"Provides the unit in seconds that is used to express route lifetimes in RPL", HFILL }},
{ &hf_icmpv6_rpl_opt_target_flag,
{ "Reserved", "icmpv6.rpl.opt.target.flag", FT_NONE, BASE_NONE, NULL, 0x0,
"Unused field reserved for flags", HFILL }},
{ &hf_icmpv6_rpl_opt_target_prefix_length,
{ "Target Length", "icmpv6.rpl.opt.target.prefix_length", FT_UINT8, BASE_DEC, NULL, 0x0,
"Number of valid leading bits in the IPv6 Prefix", HFILL }},
{ &hf_icmpv6_rpl_opt_target_prefix,
{ "Target", "icmpv6.rpl.opt.target.prefix", FT_IPv6, BASE_NONE, NULL, 0x0,
"Identifying an IPv6 destination address, prefix, or multicast group", HFILL }},
{ &hf_icmpv6_rpl_opt_transit_flag,
{ "Flags", "icmpv6.rpl.opt.transit.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_opt_transit_flag_e,
{ "External", "icmpv6.rpl.opt.transit.flag.e", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RPL_OPT_TRANSIT_FLAG_E,
"Indicate that the parent router redistributes external targets into the RPL network", HFILL }},
{ &hf_icmpv6_rpl_opt_transit_flag_rsv,
{ "Reserved", "icmpv6.rpl.opt.transit.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_OPT_TRANSIT_FLAG_RSV,
"Must be Zero", HFILL }},
{ &hf_icmpv6_rpl_opt_transit_pathctl,
{ "Path Control", "icmpv6.rpl.opt.transit.pathctl", FT_UINT8, BASE_DEC, NULL, 0x0,
"Limits the number of DAO-Parents to which a DAO message advertising connectivity", HFILL }},
{ &hf_icmpv6_rpl_opt_transit_pathseq,
{ "Path Sequence", "icmpv6.rpl.opt.transit.pathseq", FT_UINT8, BASE_DEC, NULL, 0x0,
"Increments the Path Sequence each time it issues a RPL Target option with updated information", HFILL }},
{ &hf_icmpv6_rpl_opt_transit_pathlifetime,
{ "Path Lifetime", "icmpv6.rpl.opt.transit.pathlifetime", FT_UINT8, BASE_DEC, NULL, 0x0,
"The length of time in Lifetime Units that the prefix is valid for route determination", HFILL }},
{ &hf_icmpv6_rpl_opt_transit_parent,
{ "Parent Address", "icmpv6.rpl.opt.transit.parent", FT_IPv6, BASE_NONE, NULL, 0x0,
"IPv6 Address of the DODAG Parent of the node originally issuing the Transit Information Option", HFILL }},
{ &hf_icmpv6_rpl_opt_solicited_instance,
{ "Instance", "icmpv6.rpl.opt.solicited.instance", FT_UINT8, BASE_DEC, NULL, 0x0,
"Containing the RPLInstanceID that is being solicited when valid", HFILL }},
{ &hf_icmpv6_rpl_opt_solicited_flag,
{ "Flag", "icmpv6.rpl.opt.solicited.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_opt_solicited_flag_v,
{ "Version predicate", "icmpv6.rpl.opt.solicited.flag.v", FT_BOOLEAN, 8, TFS(&tfs_true_false), RPL_OPT_SOLICITED_FLAG_V,
"The Version predicate is true if the receiver's DODAGVersionNumber matches the requested Version Number", HFILL }},
{ &hf_icmpv6_rpl_opt_solicited_flag_i,
{ "InstanceID predicate","icmpv6.rpl.opt.solicited.flag.i", FT_BOOLEAN, 8, TFS(&tfs_true_false), RPL_OPT_SOLICITED_FLAG_I,
"The InstanceID predicate is true when the RPL node's current RPLInstanceID matches the requested RPLInstanceID", HFILL }},
{ &hf_icmpv6_rpl_opt_solicited_flag_d,
{ "DODAGID predicate", "icmpv6.rpl.opt.solicited.flag.d", FT_BOOLEAN, 8, TFS(&tfs_true_false), RPL_OPT_SOLICITED_FLAG_D,
"The DODAGID predicate is true if the RPL node's parent set has the same DODAGID as the DODAGID field", HFILL }},
{ &hf_icmpv6_rpl_opt_solicited_flag_rsv,
{ "Reserved", "icmpv6.rpl.opt.solicited.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_OPT_SOLICITED_FLAG_RSV,
"Must be Zero", HFILL }},
{ &hf_icmpv6_rpl_opt_solicited_dodagid,
{ "DODAGID", "icmpv6.rpl.opt.solicited.dodagid", FT_IPv6, BASE_NONE, NULL, 0x0,
"the DODAGID that is being solicited when valid", HFILL }},
{ &hf_icmpv6_rpl_opt_solicited_version,
{ "Version", "icmpv6.rpl.opt.solicited.version", FT_UINT8, BASE_DEC, NULL, 0x0,
"the value of DODAGVersionNumber that is being solicited when valid", HFILL }},
{ &hf_icmpv6_rpl_opt_prefix_length,
{ "Prefix Length", "icmpv6.rpl.opt.prefix.length", FT_UINT8, BASE_DEC, NULL, 0x0,
"The number of leading bits in the Prefix that are valid", HFILL }},
{ &hf_icmpv6_rpl_opt_prefix_flag,
{ "Flag", "icmpv6.rpl.opt.prefix.flag", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_icmpv6_rpl_opt_prefix_flag_l,
{ "On Link", "icmpv6.rpl.opt.prefix.flag.l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RPL_OPT_PREFIX_FLAG_L,
"When set, indicates that this prefix can be used for on-link determination", HFILL }},
{ &hf_icmpv6_rpl_opt_prefix_flag_a,
{ "Auto Address Config","icmpv6.rpl.opt.config.flag.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RPL_OPT_PREFIX_FLAG_A,
"When set indicates that this prefix can be used for stateless address configuration", HFILL }},
{ &hf_icmpv6_rpl_opt_prefix_flag_r,
{ "Router Address", "icmpv6.rpl.opt.config.flag.r", FT_BOOLEAN, 8, TFS(&tfs_set_notset), RPL_OPT_PREFIX_FLAG_R,
"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 }},
{ &hf_icmpv6_rpl_opt_prefix_flag_rsv,
{ "Reserved", "icmpv6.rpl.opt.config.flag.rsv", FT_UINT8, BASE_DEC, NULL, RPL_OPT_PREFIX_FLAG_RSV,
"Must Be Zero", HFILL }},
{ &hf_icmpv6_rpl_opt_prefix_vlifetime,
{ "Valid Lifetime", "icmpv6.rpl.opt.prefix.valid_lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
"The length of time in seconds that the prefix is valid for the purpose of on-link determination", HFILL }},
{ &hf_icmpv6_rpl_opt_prefix_plifetime,
{ "Preferred Lifetime", "icmpv6.rpl.opt.prefix.preferred_lifetime", FT_UINT32, BASE_DEC, NULL, 0x0,
"The length of time in seconds that addresses generated from the prefix via stateless address autoconfiguration remain preferred", HFILL }},
{ &hf_icmpv6_rpl_opt_prefix,
{ "Destination Prefix", "icmpv6.rpl.opt.prefix", FT_IPv6, BASE_NONE, NULL, 0x0,
"An IPv6 address or a prefix of an IPv6 address", HFILL }},
{ &hf_icmpv6_rpl_opt_targetdesc,
{ "Descriptor", "icmpv6.rpl.opt.targetdesc.descriptor", FT_UINT32, BASE_HEX, NULL, 0x0,
"Opaque Data", HFILL }},
/* 6lowpan-nd: Neighbour Discovery for 6LoWPAN Networks */
{ &hf_icmpv6_da_status,
{ "Status", "icmpv6.6lowpannd.da.status", FT_UINT8, BASE_DEC, VALS(nd_opt_6lowpannd_status_val), 0x0,
"Indicates the status of a registration in the DAC", HFILL }},
{ &hf_icmpv6_da_rsv,
{ "Reserved", "icmpv6.6lowpannd.da.rsv", FT_UINT8, BASE_DEC, NULL, 0x0,
"Must be Zero", HFILL }},
{ &hf_icmpv6_da_lifetime,
{ "Lifetime", "icmpv6.6lowpannd.da.lifetime", FT_UINT16, BASE_DEC, NULL, 0x0,
"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 }},
{ &hf_icmpv6_da_eui64,
{ "EUI-64", "icmpv6.6lowpannd.da.eui64", FT_EUI64, BASE_NONE, NULL, 0x0,
"This field is used to uniquely identify the interface of the registered address by including the EUI-64 identifier", HFILL }},
{ &hf_icmpv6_da_raddr,
{ "Registered Address", "icmpv6.6lowpannd.da.reg_addr", FT_IPv6, BASE_NONE, NULL, 0x0,
"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 }},
/* Conversation-related [generated] header fields */
{ &hf_icmpv6_resp_in,
{ "Response In", "icmpv6.resp_in", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
"The response to this request is in this frame", HFILL }},
{&hf_icmpv6_no_resp,
{"No response seen", "icmpv6.no_resp", FT_NONE, BASE_NONE, NULL, 0x0,
"No corresponding response frame was seen", HFILL}},
{ &hf_icmpv6_resp_to,
{ "Response To", "icmpv6.resp_to", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
"This is the response to the request in this frame", HFILL }},
{ &hf_icmpv6_resptime,
{ "Response Time", "icmpv6.resptime", FT_DOUBLE, BASE_NONE, NULL, 0x0,
"The time between the request and the response, in ms.", HFILL }}
};
static gint *ett[] = {
&ett_icmpv6,
&ett_icmpv6_opt,
&ett_icmpv6_mar,
&ett_icmpv6_flag_prefix,
&ett_icmpv6_flag_map,
&ett_icmpv6_flag_route_info,
&ett_icmpv6_flag_6lowpan,
&ett_icmpv6_flag_efo,
&ett_icmpv6_rpl_opt,
&ett_icmpv6_rpl_flag_routing,
&ett_icmpv6_rpl_flag_config,
&ett_icmpv6_rpl_flag_transit,
&ett_icmpv6_rpl_flag_solicited,
&ett_icmpv6_rpl_flag_prefix,
&ett_icmpv6_flag_ni,
&ett_icmpv6_flag_rr,
&ett_icmpv6_rr_mp,
&ett_icmpv6_rr_up,
&ett_icmpv6_rr_up_flag_mask,
&ett_icmpv6_rr_up_flag_ra,
&ett_icmpv6_rr_up_flag,
&ett_icmpv6_rr_rm,
&ett_icmpv6_rr_rm_flag,
&ett_icmpv6_flag_mld,
&ett_icmpv6_flag_ra,
&ett_icmpv6_flag_na,
&ett_icmpv6_flag_mip6,
&ett_icmpv6_flag_fmip6,
&ett_icmpv6_flag_secure,
&ett_icmpv6_flag_rpl_dio,
&ett_icmpv6_flag_rpl_dao,
&ett_icmpv6_flag_rpl_daoack,
&ett_icmpv6_flag_rpl_cc,
&ett_icmpv6_opt_name,
&ett_icmpv6_cga_param_name
};
static ei_register_info ei[] = {
{ &ei_icmpv6_invalid_option_length, { "icmpv6.invalid_option_length", PI_MALFORMED, PI_ERROR, "Invalid Option Length", EXPFILL }},
{ &ei_icmpv6_undecoded_option, { "icmpv6.undecoded.option", PI_UNDECODED, PI_NOTE, "Undecoded option", EXPFILL }},
{ &ei_icmpv6_unknown_data, { "icmpv6.unknown_data.expert", PI_MALFORMED, PI_ERROR, "Unknown Data (not interpreted)", EXPFILL }},
{ &ei_icmpv6_undecoded_rpl_option, { "icmpv6.undecoded.rpl_option", PI_UNDECODED, PI_NOTE, "Undecoded RPL Option", EXPFILL }},
{ &ei_icmpv6_undecoded_type, { "icmpv6.undecoded.type", PI_UNDECODED, PI_NOTE, "Undecoded type", EXPFILL }},
{ &ei_icmpv6_rr_pco_mp_matchlen, { "icmpv6.rr.pco.mp.matchlen.gt128", PI_PROTOCOL, PI_WARN, "MatchLen is greater than 128", EXPFILL }},
{ &ei_icmpv6_rr_pco_mp_matchedlen, { "icmpv6.rr.pco.mp.matchedlen.gt128", PI_PROTOCOL, PI_WARN, "MatchedLen is greater than 128", EXPFILL }},
{ &ei_icmpv6_checksum, { "icmpv6.checksum_bad.expert", PI_CHECKSUM, PI_WARN, "Bad checksum", EXPFILL }},
{ &ei_icmpv6_resp_not_found, { "icmpv6.resp_not_found", PI_SEQUENCE, PI_WARN, "Response not found", EXPFILL }},
};
expert_module_t* expert_icmpv6;
proto_icmpv6 = proto_register_protocol("Internet Control Message Protocol v6",
"ICMPv6", "icmpv6");
proto_register_field_array(proto_icmpv6, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_icmpv6 = expert_register_protocol(proto_icmpv6);
expert_register_field_array(expert_icmpv6, ei, array_length(ei));
icmpv6_handle = new_register_dissector("icmpv6", dissect_icmpv6, proto_icmpv6);
icmpv6_tap = register_tap("icmpv6");
}
void
proto_reg_handoff_icmpv6(void)
{
dissector_add_uint("ip.proto", IP_PROTO_ICMPV6, icmpv6_handle);
/*
* Get a handle for the IPv6 dissector.
*/
ipv6_handle = find_dissector("ipv6");
data_handle = find_dissector("data");
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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