forked from osmocom/wireshark
2873 lines
118 KiB
C
2873 lines
118 KiB
C
/* packet-ipv6.c
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* Routines for IPv6 packet disassembly
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SHIM6 support added by Matthijs Mekking <matthijs@NLnetLabs.nl>
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*
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* MobileIPv6 support added by Tomislav Borosa <tomislav.borosa@siemens.hr>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <math.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/ip_opts.h>
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#include <epan/addr_resolv.h>
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#include <epan/prefs.h>
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#include <epan/reassemble.h>
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#include <epan/ipproto.h>
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#include <epan/ipv6-utils.h>
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#include <epan/etypes.h>
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#include <epan/ppptypes.h>
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#include <epan/aftypes.h>
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#include <epan/nlpid.h>
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#include <epan/arcnet_pids.h>
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#include <epan/in_cksum.h>
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#include <epan/expert.h>
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#include <epan/emem.h>
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#include <epan/tap.h>
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#include "packet-ipsec.h"
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#include "packet-ipv6.h"
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#include "packet-ip.h"
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#ifdef HAVE_GEOIP_V6
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#include <GeoIP.h>
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#include <epan/geoip_db.h>
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#endif /* HAVE_GEOIP_V6 */
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/* Differentiated Services Field. See RFCs 2474, 2597 and 2598. */
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#define IPDSFIELD_DSCP_MASK 0xFC
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#define IPDSFIELD_ECN_MASK 0x03
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#define IPDSFIELD_DSCP_SHIFT 2
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#define IPDSFIELD_DSCP(dsfield) (((dsfield)&IPDSFIELD_DSCP_MASK)>>IPDSFIELD_DSCP_SHIFT)
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#define IPDSFIELD_ECN(dsfield) ((dsfield)&IPDSFIELD_ECN_MASK)
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#define IPDSFIELD_DSCP_DEFAULT 0x00
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#define IPDSFIELD_DSCP_CS1 0x08
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#define IPDSFIELD_DSCP_CS2 0x10
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#define IPDSFIELD_DSCP_CS3 0x18
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#define IPDSFIELD_DSCP_CS4 0x20
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#define IPDSFIELD_DSCP_CS5 0x28
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#define IPDSFIELD_DSCP_CS6 0x30
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#define IPDSFIELD_DSCP_CS7 0x38
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#define IPDSFIELD_DSCP_AF11 0x0A
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#define IPDSFIELD_DSCP_AF12 0x0C
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#define IPDSFIELD_DSCP_AF13 0x0E
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#define IPDSFIELD_DSCP_AF21 0x12
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#define IPDSFIELD_DSCP_AF22 0x14
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#define IPDSFIELD_DSCP_AF23 0x16
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#define IPDSFIELD_DSCP_AF31 0x1A
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#define IPDSFIELD_DSCP_AF32 0x1C
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#define IPDSFIELD_DSCP_AF33 0x1E
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#define IPDSFIELD_DSCP_AF41 0x22
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#define IPDSFIELD_DSCP_AF42 0x24
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#define IPDSFIELD_DSCP_AF43 0x26
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#define IPDSFIELD_DSCP_EF 0x2E
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#define IPDSFIELD_ECT_MASK 0x02
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#define IPDSFIELD_CE_MASK 0x01
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/* RPL Routing header */
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#define IP6RRPL_BITMASK_CMPRI 0xF0000000
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#define IP6RRPL_BITMASK_CMPRE 0x0F000000
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#define IP6RRPL_BITMASK_PAD 0x00F00000
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#define IP6RRPL_BITMASK_RESERVED 0x000FFFFF
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static int ipv6_tap = -1;
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static int proto_ipv6 = -1;
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static int hf_ipv6_version = -1;
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static int hf_ip_version = -1;
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static int hf_ipv6_class = -1;
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static int hf_ipv6_flow = -1;
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static int hf_ipv6_plen = -1;
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static int hf_ipv6_nxt = -1;
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static int hf_ipv6_hlim = -1;
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static int hf_ipv6_src = -1;
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static int hf_ipv6_src_host = -1;
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static int hf_ipv6_src_sa_mac = -1;
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static int hf_ipv6_src_isatap_ipv4 = -1;
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static int hf_ipv6_src_6to4_gateway_ipv4 = -1;
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static int hf_ipv6_src_6to4_sla_id = -1;
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static int hf_ipv6_src_teredo_server_ipv4 = -1;
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static int hf_ipv6_src_teredo_port = -1;
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static int hf_ipv6_src_teredo_client_ipv4 = -1;
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static int hf_ipv6_dst = -1;
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static int hf_ipv6_dst_host = -1;
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static int hf_ipv6_dst_sa_mac = -1;
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static int hf_ipv6_dst_isatap_ipv4 = -1;
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static int hf_ipv6_dst_6to4_gateway_ipv4 = -1;
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static int hf_ipv6_dst_6to4_sla_id = -1;
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static int hf_ipv6_dst_teredo_server_ipv4 = -1;
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static int hf_ipv6_dst_teredo_port = -1;
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static int hf_ipv6_dst_teredo_client_ipv4 = -1;
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static int hf_ipv6_addr = -1;
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static int hf_ipv6_host = -1;
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static int hf_ipv6_sa_mac = -1;
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static int hf_ipv6_isatap_ipv4 = -1;
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static int hf_ipv6_6to4_gateway_ipv4 = -1;
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static int hf_ipv6_6to4_sla_id = -1;
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static int hf_ipv6_teredo_server_ipv4 = -1;
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static int hf_ipv6_teredo_port = -1;
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static int hf_ipv6_teredo_client_ipv4 = -1;
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static int hf_ipv6_opt = -1;
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static int hf_ipv6_opt_type = -1;
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static int hf_ipv6_opt_length = -1;
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static int hf_ipv6_opt_pad1 = -1;
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static int hf_ipv6_opt_padn = -1;
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static int hf_ipv6_opt_tel = -1;
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static int hf_ipv6_opt_rtalert = -1;
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static int hf_ipv6_opt_jumbo = -1;
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static int hf_ipv6_opt_calipso_doi = -1;
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static int hf_ipv6_opt_calipso_cmpt_length = -1;
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static int hf_ipv6_opt_calipso_sens_level = -1;
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static int hf_ipv6_opt_calipso_checksum = -1;
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static int hf_ipv6_opt_calipso_cmpt_bitmap = -1;
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static int hf_ipv6_opt_qs_func = -1;
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static int hf_ipv6_opt_qs_rate = -1;
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static int hf_ipv6_opt_qs_ttl = -1;
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static int hf_ipv6_opt_qs_ttl_diff = -1;
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static int hf_ipv6_opt_qs_unused = -1;
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static int hf_ipv6_opt_qs_nonce = -1;
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static int hf_ipv6_opt_qs_reserved = -1;
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static int hf_ipv6_opt_rpl_flag = -1;
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static int hf_ipv6_opt_rpl_flag_o = -1;
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static int hf_ipv6_opt_rpl_flag_r = -1;
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static int hf_ipv6_opt_rpl_flag_f = -1;
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static int hf_ipv6_opt_rpl_flag_rsv = -1;
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static int hf_ipv6_opt_rpl_instance_id = -1;
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static int hf_ipv6_opt_rpl_senderrank = -1;
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static int hf_ipv6_opt_experimental = -1;
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static int hf_ipv6_opt_unknown = -1;
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static int hf_ipv6_dst_opt = -1;
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static int hf_ipv6_hop_opt = -1;
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static int hf_ipv6_unk_hdr = -1;
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static int hf_ipv6_routing_hdr_opt = -1;
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static int hf_ipv6_routing_hdr_type = -1;
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static int hf_ipv6_routing_hdr_left = -1;
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static int hf_ipv6_routing_hdr_addr = -1;
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static int hf_ipv6_frag_nxt = -1;
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static int hf_ipv6_frag_reserved = -1;
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static int hf_ipv6_frag_offset = -1;
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static int hf_ipv6_frag_reserved_bits = -1;
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static int hf_ipv6_frag_more = -1;
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static int hf_ipv6_frag_id = -1;
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static int hf_ipv6_fragments = -1;
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static int hf_ipv6_fragment = -1;
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static int hf_ipv6_fragment_overlap = -1;
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static int hf_ipv6_fragment_overlap_conflict = -1;
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static int hf_ipv6_fragment_multiple_tails = -1;
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static int hf_ipv6_fragment_too_long_fragment = -1;
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static int hf_ipv6_fragment_error = -1;
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static int hf_ipv6_fragment_count = -1;
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static int hf_ipv6_reassembled_in = -1;
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static int hf_ipv6_reassembled_length = -1;
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static int hf_ipv6_reassembled_data = -1;
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static int hf_ipv6_mipv6_home_address = -1;
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static int hf_ipv6_routing_hdr_rpl_cmprI = -1;
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static int hf_ipv6_routing_hdr_rpl_cmprE = -1;
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static int hf_ipv6_routing_hdr_rpl_pad = -1;
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static int hf_ipv6_routing_hdr_rpl_reserved = -1;
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static int hf_ipv6_routing_hdr_rpl_segments = -1;
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static int hf_ipv6_routing_hdr_rpl_addr = -1;
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static int hf_ipv6_routing_hdr_rpl_fulladdr = -1;
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static int hf_ipv6_shim6 = -1;
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static int hf_ipv6_shim6_nxt = -1;
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static int hf_ipv6_shim6_len = -1;
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static int hf_ipv6_shim6_p = -1;
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/* context tag is 49 bits, cannot be used for filter yet */
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static int hf_ipv6_shim6_ct = -1;
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static int hf_ipv6_shim6_type = -1;
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static int hf_ipv6_shim6_proto = -1;
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static int hf_ipv6_shim6_checksum = -1;
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static int hf_ipv6_shim6_checksum_bad = -1;
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static int hf_ipv6_shim6_checksum_good = -1;
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static int hf_ipv6_shim6_inonce = -1; /* also for request nonce */
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static int hf_ipv6_shim6_rnonce = -1;
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static int hf_ipv6_shim6_precvd = -1;
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static int hf_ipv6_shim6_psent = -1;
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static int hf_ipv6_shim6_psrc = -1;
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static int hf_ipv6_shim6_pdst = -1;
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static int hf_ipv6_shim6_pnonce = -1;
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static int hf_ipv6_shim6_pdata = -1;
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static int hf_ipv6_shim6_sulid = -1;
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static int hf_ipv6_shim6_rulid = -1;
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static int hf_ipv6_shim6_reap = -1;
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static int hf_ipv6_shim6_opt_type = -1;
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static int hf_ipv6_shim6_opt_len = -1;
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static int hf_ipv6_shim6_opt_total_len = -1;
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static int hf_ipv6_shim6_opt_loc_verif_methods = -1;
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static int hf_ipv6_shim6_opt_critical = -1;
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static int hf_ipv6_shim6_opt_loclist = -1;
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static int hf_ipv6_shim6_locator = -1;
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static int hf_ipv6_shim6_loc_flag = -1;
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static int hf_ipv6_shim6_loc_prio = -1;
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static int hf_ipv6_shim6_loc_weight = -1;
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static int hf_ipv6_shim6_opt_locnum = -1;
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static int hf_ipv6_shim6_opt_elemlen = -1;
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static int hf_ipv6_shim6_opt_fii = -1;
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static int hf_ipv6_traffic_class_dscp = -1;
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static int hf_ipv6_traffic_class_ect = -1;
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static int hf_ipv6_traffic_class_ce = -1;
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#ifdef HAVE_GEOIP_V6
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static int hf_geoip_country = -1;
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static int hf_geoip_city = -1;
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static int hf_geoip_org = -1;
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static int hf_geoip_isp = -1;
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static int hf_geoip_asnum = -1;
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static int hf_geoip_lat = -1;
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static int hf_geoip_lon = -1;
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static int hf_geoip_src_country = -1;
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static int hf_geoip_src_city = -1;
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static int hf_geoip_src_org = -1;
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static int hf_geoip_src_isp = -1;
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static int hf_geoip_src_asnum = -1;
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static int hf_geoip_src_lat = -1;
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static int hf_geoip_src_lon = -1;
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static int hf_geoip_dst_country = -1;
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static int hf_geoip_dst_city = -1;
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static int hf_geoip_dst_org = -1;
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static int hf_geoip_dst_isp = -1;
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static int hf_geoip_dst_asnum = -1;
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static int hf_geoip_dst_lat = -1;
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static int hf_geoip_dst_lon = -1;
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#endif /* HAVE_GEOIP_V6 */
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static gint ett_ipv6 = -1;
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static gint ett_ipv6_opt = -1;
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static gint ett_ipv6_opt_flag = -1;
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static gint ett_ipv6_version = -1;
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static gint ett_ipv6_shim6 = -1;
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static gint ett_ipv6_shim6_option = -1;
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static gint ett_ipv6_shim6_locators = -1;
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static gint ett_ipv6_shim6_verif_methods = -1;
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static gint ett_ipv6_shim6_loc_pref = -1;
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static gint ett_ipv6_shim6_probes_sent = -1;
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static gint ett_ipv6_shim6_probe_sent = -1;
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static gint ett_ipv6_shim6_probes_rcvd = -1;
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static gint ett_ipv6_shim6_probe_rcvd = -1;
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static gint ett_ipv6_shim6_cksum = -1;
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static gint ett_ipv6_fragments = -1;
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static gint ett_ipv6_fragment = -1;
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static gint ett_ipv6_traffic_class = -1;
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#ifdef HAVE_GEOIP_V6
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static gint ett_geoip_info = -1;
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#endif /* HAVE_GEOIP_V6 */
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static const fragment_items ipv6_frag_items = {
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&ett_ipv6_fragment,
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&ett_ipv6_fragments,
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&hf_ipv6_fragments,
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&hf_ipv6_fragment,
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&hf_ipv6_fragment_overlap,
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&hf_ipv6_fragment_overlap_conflict,
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&hf_ipv6_fragment_multiple_tails,
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&hf_ipv6_fragment_too_long_fragment,
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&hf_ipv6_fragment_error,
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&hf_ipv6_fragment_count,
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&hf_ipv6_reassembled_in,
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&hf_ipv6_reassembled_length,
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&hf_ipv6_reassembled_data,
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"IPv6 fragments"
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};
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static dissector_handle_t data_handle;
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static dissector_table_t ip_dissector_table;
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/* Reassemble fragmented datagrams */
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static gboolean ipv6_reassemble = TRUE;
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/* Place IPv6 summary in proto tree */
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static gboolean ipv6_summary_in_tree = TRUE;
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#ifdef HAVE_GEOIP_V6
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/* Look up addresses in GeoIP */
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static gboolean ipv6_use_geoip = TRUE;
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#endif /* HAVE_GEOIP_V6 */
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/* Perform strict RFC adherence checking */
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static gboolean g_ipv6_rpl_srh_strict_rfc_checking = FALSE;
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#ifndef offsetof
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#define offsetof(type, member) ((size_t)(&((type *)0)->member))
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#endif
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/*
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* defragmentation of IPv6
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*/
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static GHashTable *ipv6_fragment_table = NULL;
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static GHashTable *ipv6_reassembled_table = NULL;
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/* http://www.iana.org/assignments/icmpv6-parameters (last updated 2012-12-22) */
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static const value_string ipv6_opt_vals[] = {
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{ IP6OPT_PAD1, "Pad1" },
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{ IP6OPT_PADN, "PadN" },
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{ IP6OPT_TEL, "Tunnel Encapsulation Limit" },
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{ IP6OPT_RTALERT, "Router Alert" },
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{ IP6OPT_CALIPSO, "Calipso" },
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{ IP6OPT_QUICKSTART, "Quick Start" },
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{ IP6OPT_ENDI, "Endpoint Identification" },
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{ IP6OPT_EXP_1E, "Experimental (0x1E)" },
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{ IP6OPT_EXP_3E, "Experimental (0x3E)" },
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{ IP6OPT_EXP_5E, "Experimental (0x5E)" },
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{ IP6OPT_RPL, "RPL Option" },
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{ IP6OPT_EXP_7E, "Experimental (0x7E)" },
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{ IP6OPT_EXP_9E, "Experimental (0x9E)" },
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{ IP6OPT_EXP_BE, "Experimental (0xBE)" },
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{ IP6OPT_JUMBO, "Jumbo" },
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{ IP6OPT_HOME_ADDRESS, "Home Address" },
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{ IP6OPT_EXP_DE, "Experimental (0xDE)" },
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{ IP6OPT_EXP_FE, "Experimental (0xFE)" },
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{ 0, NULL }
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};
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void
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capture_ipv6(const guchar *pd, int offset, int len, packet_counts *ld)
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{
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guint8 nxt;
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int advance;
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if (!BYTES_ARE_IN_FRAME(offset, len, 4+4+16+16)) {
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ld->other++;
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return;
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}
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nxt = pd[offset+6]; /* get the "next header" value */
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offset += 4+4+16+16; /* skip past the IPv6 header */
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again:
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switch (nxt) {
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case IP_PROTO_HOPOPTS:
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case IP_PROTO_ROUTING:
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case IP_PROTO_DSTOPTS:
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if (!BYTES_ARE_IN_FRAME(offset, len, 2)) {
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ld->other++;
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return;
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}
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nxt = pd[offset];
|
|
advance = (pd[offset+1] + 1) << 3;
|
|
if (!BYTES_ARE_IN_FRAME(offset, len, advance)) {
|
|
ld->other++;
|
|
return;
|
|
}
|
|
offset += advance;
|
|
goto again;
|
|
case IP_PROTO_FRAGMENT:
|
|
if (!BYTES_ARE_IN_FRAME(offset, len, 2)) {
|
|
ld->other++;
|
|
return;
|
|
}
|
|
nxt = pd[offset];
|
|
advance = 8;
|
|
if (!BYTES_ARE_IN_FRAME(offset, len, advance)) {
|
|
ld->other++;
|
|
return;
|
|
}
|
|
offset += advance;
|
|
goto again;
|
|
case IP_PROTO_AH:
|
|
if (!BYTES_ARE_IN_FRAME(offset, len, 2)) {
|
|
ld->other++;
|
|
return;
|
|
}
|
|
nxt = pd[offset];
|
|
advance = 8 + ((pd[offset+1] - 1) << 2);
|
|
if (!BYTES_ARE_IN_FRAME(offset, len, advance)) {
|
|
ld->other++;
|
|
return;
|
|
}
|
|
offset += advance;
|
|
goto again;
|
|
case IP_PROTO_SHIM6:
|
|
case IP_PROTO_SHIM6_OLD:
|
|
if (!BYTES_ARE_IN_FRAME(offset, len, 2)) {
|
|
ld->other++;
|
|
return;
|
|
}
|
|
nxt = pd[offset];
|
|
advance = (pd[offset+1] + 1) << 3;
|
|
if (!BYTES_ARE_IN_FRAME(offset, len, advance)) {
|
|
ld->other++;
|
|
return;
|
|
}
|
|
offset += advance;
|
|
goto again;
|
|
}
|
|
|
|
switch(nxt) {
|
|
case IP_PROTO_SCTP:
|
|
ld->sctp++;
|
|
break;
|
|
case IP_PROTO_TCP:
|
|
ld->tcp++;
|
|
break;
|
|
case IP_PROTO_UDP:
|
|
case IP_PROTO_UDPLITE:
|
|
ld->udp++;
|
|
break;
|
|
case IP_PROTO_ICMP:
|
|
case IP_PROTO_ICMPV6: /* XXX - separate counters? */
|
|
ld->icmp++;
|
|
break;
|
|
case IP_PROTO_OSPF:
|
|
ld->ospf++;
|
|
break;
|
|
case IP_PROTO_GRE:
|
|
ld->gre++;
|
|
break;
|
|
case IP_PROTO_VINES:
|
|
ld->vines++;
|
|
break;
|
|
default:
|
|
ld->other++;
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_GEOIP_V6
|
|
static void
|
|
add_geoip_info_entry(proto_tree *geoip_info_item, tvbuff_t *tvb, gint offset, const struct e_in6_addr *ip, int isdst)
|
|
{
|
|
proto_tree *geoip_info_tree;
|
|
|
|
guint num_dbs = geoip_db_num_dbs();
|
|
guint item_cnt = 0;
|
|
guint dbnum;
|
|
|
|
geoip_info_tree = proto_item_add_subtree(geoip_info_item, ett_geoip_info);
|
|
|
|
for (dbnum = 0; dbnum < num_dbs; dbnum++) {
|
|
const char *geoip_str = geoip_db_lookup_ipv6(dbnum, *ip, NULL);
|
|
int db_type = geoip_db_type(dbnum);
|
|
|
|
int geoip_hf, geoip_local_hf;
|
|
|
|
switch (db_type) {
|
|
case GEOIP_COUNTRY_EDITION_V6:
|
|
geoip_hf = hf_geoip_country;
|
|
geoip_local_hf = (isdst) ? hf_geoip_dst_country : hf_geoip_src_country;
|
|
break;
|
|
#if NUM_DB_TYPES > 31
|
|
case GEOIP_CITY_EDITION_REV0_V6:
|
|
case GEOIP_CITY_EDITION_REV1_V6:
|
|
geoip_hf = hf_geoip_city;
|
|
geoip_local_hf = (isdst) ? hf_geoip_dst_city : hf_geoip_src_city;
|
|
break;
|
|
case GEOIP_ORG_EDITION_V6:
|
|
geoip_hf = hf_geoip_org;
|
|
geoip_local_hf = (isdst) ? hf_geoip_dst_org : hf_geoip_src_org;
|
|
break;
|
|
case GEOIP_ISP_EDITION_V6:
|
|
geoip_hf = hf_geoip_isp;
|
|
geoip_local_hf = (isdst) ? hf_geoip_dst_isp : hf_geoip_src_isp;
|
|
break;
|
|
case GEOIP_ASNUM_EDITION_V6:
|
|
geoip_hf = hf_geoip_asnum;
|
|
geoip_local_hf = (isdst) ? hf_geoip_dst_asnum : hf_geoip_src_asnum;
|
|
break;
|
|
#endif /* DB_NUM_TYPES */
|
|
case WS_LAT_FAKE_EDITION:
|
|
geoip_hf = hf_geoip_lat;
|
|
geoip_local_hf = (isdst) ? hf_geoip_dst_lat : hf_geoip_src_lat;
|
|
break;
|
|
case WS_LON_FAKE_EDITION:
|
|
geoip_hf = hf_geoip_lon;
|
|
geoip_local_hf = (isdst) ? hf_geoip_dst_lon : hf_geoip_src_lon;
|
|
break;
|
|
default:
|
|
continue;
|
|
break;
|
|
}
|
|
|
|
if (geoip_str) {
|
|
proto_item *item;
|
|
if (db_type == WS_LAT_FAKE_EDITION || db_type == WS_LON_FAKE_EDITION) {
|
|
/* Convert latitude, longitude to double. Fix bug #5077 */
|
|
item = proto_tree_add_double_format_value(geoip_info_tree, geoip_local_hf, tvb,
|
|
offset, 16, g_ascii_strtod(geoip_str, NULL), "%s", geoip_str);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
item = proto_tree_add_double_format_value(geoip_info_tree, geoip_hf, tvb,
|
|
offset, 16, g_ascii_strtod(geoip_str, NULL), "%s", geoip_str);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
PROTO_ITEM_SET_HIDDEN(item);
|
|
} else {
|
|
item = proto_tree_add_unicode_string(geoip_info_tree, geoip_local_hf, tvb,
|
|
offset, 16, geoip_str);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
item = proto_tree_add_unicode_string(geoip_info_tree, geoip_hf, tvb,
|
|
offset, 16, geoip_str);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
PROTO_ITEM_SET_HIDDEN(item);
|
|
}
|
|
|
|
item_cnt++;
|
|
proto_item_append_text(geoip_info_item, "%s%s", plurality(item_cnt, "", ", "), geoip_str);
|
|
}
|
|
}
|
|
|
|
if (item_cnt == 0)
|
|
proto_item_append_text(geoip_info_item, "Unknown");
|
|
}
|
|
|
|
static void
|
|
add_geoip_info(proto_tree *tree, tvbuff_t *tvb, gint offset, const struct e_in6_addr *src, const struct e_in6_addr *dst)
|
|
{
|
|
guint num_dbs;
|
|
proto_item *geoip_info_item;
|
|
|
|
num_dbs = geoip_db_num_dbs();
|
|
if (num_dbs < 1)
|
|
return;
|
|
|
|
geoip_info_item = proto_tree_add_text(tree, tvb, offset + IP6H_SRC, 16, "Source GeoIP: ");
|
|
PROTO_ITEM_SET_GENERATED(geoip_info_item);
|
|
add_geoip_info_entry(geoip_info_item, tvb, offset + IP6H_SRC, src, 0);
|
|
|
|
geoip_info_item = proto_tree_add_text(tree, tvb, offset + IP6H_DST, 16, "Destination GeoIP: ");
|
|
PROTO_ITEM_SET_GENERATED(geoip_info_item);
|
|
add_geoip_info_entry(geoip_info_item, tvb, offset + IP6H_DST, dst, 1);
|
|
}
|
|
#endif /* HAVE_GEOIP_V6 */
|
|
|
|
static void
|
|
ipv6_reassemble_init(void)
|
|
{
|
|
fragment_table_init(&ipv6_fragment_table);
|
|
reassembled_table_init(&ipv6_reassembled_table);
|
|
}
|
|
|
|
enum {
|
|
IPv6_RT_HEADER_SOURCE_ROUTING=0,
|
|
IPv6_RT_HEADER_NIMROD,
|
|
IPv6_RT_HEADER_MobileIP,
|
|
IPv6_RT_HEADER_RPL
|
|
};
|
|
|
|
/* Routing Header Types */
|
|
static const value_string routing_header_type[] = {
|
|
{ IPv6_RT_HEADER_SOURCE_ROUTING, "IPv6 Source Routing" },
|
|
{ IPv6_RT_HEADER_NIMROD, "Nimrod" },
|
|
{ IPv6_RT_HEADER_MobileIP, "Mobile IP" },
|
|
{ IPv6_RT_HEADER_RPL, "RPL" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_routing6(tvbuff_t *tvb, int offset, proto_tree *tree, packet_info *pinfo) {
|
|
struct ip6_rthdr rt;
|
|
guint len, seg_left;
|
|
proto_tree *rthdr_tree;
|
|
proto_item *ti;
|
|
guint8 buf[sizeof(struct ip6_rthdr0) + sizeof(struct e_in6_addr) * 23];
|
|
|
|
tvb_memcpy(tvb, (guint8 *)&rt, offset, sizeof(rt));
|
|
len = (rt.ip6r_len + 1) << 3;
|
|
|
|
/* Assigning seg_left and the if (seg_left) {} blocks of code that follow,
|
|
* along with any expert_add_info_format() calls, all need to execute when
|
|
* appropriate, regardless of whether the tree is NULL or not. */
|
|
if (1) {
|
|
/* !!! specify length */
|
|
ti = proto_tree_add_uint_format(tree, hf_ipv6_routing_hdr_opt, tvb,
|
|
offset, len, rt.ip6r_type,
|
|
"Routing Header, Type : %s (%u)",
|
|
val_to_str_const(rt.ip6r_type, routing_header_type, "Unknown"),
|
|
rt.ip6r_type);
|
|
rthdr_tree = proto_item_add_subtree(ti, ett_ipv6);
|
|
|
|
proto_tree_add_text(rthdr_tree, tvb,
|
|
offset + (int)offsetof(struct ip6_rthdr, ip6r_nxt), 1,
|
|
"Next header: %s (%u)", ipprotostr(rt.ip6r_nxt), rt.ip6r_nxt);
|
|
|
|
proto_tree_add_text(rthdr_tree, tvb,
|
|
offset + (int)offsetof(struct ip6_rthdr, ip6r_len), 1,
|
|
"Length: %u (%d bytes)", rt.ip6r_len, len);
|
|
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_routing_hdr_type, tvb,
|
|
offset + (int)offsetof(struct ip6_rthdr, ip6r_type), 1, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_routing_hdr_left, tvb,
|
|
offset + (int)offsetof(struct ip6_rthdr, ip6r_segleft), 1, ENC_BIG_ENDIAN);
|
|
|
|
seg_left = tvb_get_guint8(tvb, offset + (int)offsetof(struct ip6_rthdr, ip6r_segleft));
|
|
|
|
if (rt.ip6r_type == IPv6_RT_HEADER_SOURCE_ROUTING && len <= sizeof(buf)) {
|
|
struct e_in6_addr *a;
|
|
int n;
|
|
struct ip6_rthdr0 *rt0;
|
|
|
|
tvb_memcpy(tvb, buf, offset, len);
|
|
rt0 = (struct ip6_rthdr0 *)buf;
|
|
|
|
for (a = rt0->ip6r0_addr, n = 0;
|
|
a < (struct e_in6_addr *)(buf + len); a++, n++) {
|
|
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_routing_hdr_addr, tvb,
|
|
offset + (int)(offsetof(struct ip6_rthdr0, ip6r0_addr)
|
|
+ n * sizeof(struct e_in6_addr)),
|
|
(int)sizeof(struct e_in6_addr), ENC_NA);
|
|
if (seg_left)
|
|
TVB_SET_ADDRESS(&pinfo->dst, AT_IPv6, tvb,
|
|
offset + (int)offsetof(struct ip6_rthdr0, ip6r0_addr) + n * (int)sizeof(struct e_in6_addr), 16);
|
|
}
|
|
}
|
|
if (rt.ip6r_type == IPv6_RT_HEADER_MobileIP) {
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_mipv6_home_address, tvb,
|
|
offset + 8, 16, ENC_NA);
|
|
if (seg_left)
|
|
TVB_SET_ADDRESS(&pinfo->dst, AT_IPv6, tvb, offset + 8, 16);
|
|
}
|
|
if (rt.ip6r_type == IPv6_RT_HEADER_RPL) {
|
|
guint8 cmprI;
|
|
guint8 cmprE;
|
|
guint8 pad;
|
|
guint32 reserved;
|
|
gint segments;
|
|
|
|
/* IPv6 destination address used for elided bytes */
|
|
struct e_in6_addr dstAddr;
|
|
/* IPv6 source address used for strict checking */
|
|
struct e_in6_addr srcAddr;
|
|
offset += 4;
|
|
memcpy((guint8 *)&dstAddr, (guint8 *)pinfo->dst.data, pinfo->dst.len);
|
|
memcpy((guint8 *)&srcAddr, (guint8 *)pinfo->src.data, pinfo->src.len);
|
|
|
|
/* from RFC6554: Multicast addresses MUST NOT appear in the IPv6 Destination Address field */
|
|
if(g_ipv6_rpl_srh_strict_rfc_checking && E_IN6_IS_ADDR_MULTICAST(&dstAddr)){
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_WARN, "Destination address must not be a multicast address ");
|
|
}
|
|
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_routing_hdr_rpl_cmprI, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_routing_hdr_rpl_cmprE, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_routing_hdr_rpl_pad, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
cmprI = tvb_get_guint8(tvb, offset) & 0xF0;
|
|
cmprE = tvb_get_guint8(tvb, offset) & 0x0F;
|
|
pad = tvb_get_guint8(tvb, offset + 1) & 0xF0;
|
|
|
|
/* Shift bytes over */
|
|
cmprI >>= 4;
|
|
pad >>= 4;
|
|
|
|
/* from RFC6554: when CmprI and CmprE are both 0, Pad MUST carry a value of 0 */
|
|
if(g_ipv6_rpl_srh_strict_rfc_checking && (cmprI == 0 && cmprE == 0 && pad != 0)){
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_WARN, "When cmprI equals 0 and cmprE equals 0, pad MUST equal 0 but instead was %d", pad);
|
|
}
|
|
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_routing_hdr_rpl_reserved, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
reserved = tvb_get_bits32(tvb, ((offset + 1) * 8) + 4, 20, ENC_BIG_ENDIAN);
|
|
|
|
if(g_ipv6_rpl_srh_strict_rfc_checking && reserved != 0){
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_WARN, "Reserved field must equal 0 but instead was %d", reserved);
|
|
}
|
|
|
|
/* from RFC6554:
|
|
n = (((Hdr Ext Len * 8) - Pad - (16 - CmprE)) / (16 - CmprI)) + 1 */
|
|
segments = (((rt.ip6r_len * 8) - pad - (16 - cmprE)) / (16 - cmprI)) + 1;
|
|
ti = proto_tree_add_int(rthdr_tree, hf_ipv6_routing_hdr_rpl_segments, tvb, offset, 2, segments);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
|
|
if (segments < 0) {
|
|
/* This error should always be reported */
|
|
expert_add_info_format(pinfo, ti, PI_MALFORMED, PI_ERROR, "Calculated total segments must be greater than or equal to 0, instead was %d", segments);
|
|
} else {
|
|
|
|
offset += 4;
|
|
|
|
/* We use cmprI for internal (e.g.: not last) address for how many bytes to elide, so actual bytes present = 16-CmprI */
|
|
while(segments > 1) {
|
|
struct e_in6_addr addr;
|
|
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_routing_hdr_rpl_addr, tvb, offset, (16-cmprI), ENC_NA);
|
|
/* Display Full Address */
|
|
memcpy((guint8 *)&addr, (guint8 *)&dstAddr, sizeof(dstAddr));
|
|
tvb_memcpy(tvb, (guint8 *)&addr + cmprI, offset, (16-cmprI));
|
|
ti = proto_tree_add_ipv6(rthdr_tree, hf_ipv6_routing_hdr_rpl_fulladdr, tvb, offset, (16-cmprI), (guint8 *)&addr);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
offset += (16-cmprI);
|
|
segments--;
|
|
|
|
if(g_ipv6_rpl_srh_strict_rfc_checking){
|
|
/* from RFC6554: */
|
|
/* The SRH MUST NOT specify a path that visits a node more than once. */
|
|
/* To do this, we will just check the current 'addr' against the next addresses */
|
|
gint tempSegments;
|
|
gint tempOffset;
|
|
tempSegments = segments; /* Has already been decremented above */
|
|
tempOffset = offset; /* Has already been moved */
|
|
while(tempSegments > 1) {
|
|
struct e_in6_addr tempAddr;
|
|
memcpy((guint8 *)&tempAddr, (guint8 *)&dstAddr, sizeof(dstAddr));
|
|
tvb_memcpy(tvb, (guint8 *)&tempAddr + cmprI, tempOffset, (16-cmprI));
|
|
/* Compare the addresses */
|
|
if (memcmp(addr.bytes, tempAddr.bytes, 16) == 0) {
|
|
/* Found a later address that is the same */
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_ERROR, "Multiple instances of the same address must not appear in the source route list");
|
|
break;
|
|
}
|
|
tempOffset += (16-cmprI);
|
|
tempSegments--;
|
|
}
|
|
if (tempSegments == 1) {
|
|
struct e_in6_addr tempAddr;
|
|
|
|
memcpy((guint8 *)&tempAddr, (guint8 *)&dstAddr, sizeof(dstAddr));
|
|
tvb_memcpy(tvb, (guint8 *)&tempAddr + cmprE, tempOffset, (16-cmprE));
|
|
/* Compare the addresses */
|
|
if (memcmp(addr.bytes, tempAddr.bytes, 16) == 0) {
|
|
/* Found a later address that is the same */
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_ERROR, "Multiple instances of the same address must not appear in the source route list");
|
|
}
|
|
}
|
|
/* IPv6 Source and Destination addresses of the encapsulating datagram (MUST) not appear in the SRH*/
|
|
if (memcmp(addr.bytes, srcAddr.bytes, 16) == 0) {
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_ERROR, "Source address must not appear in the source route list");
|
|
}
|
|
|
|
if (memcmp(addr.bytes, dstAddr.bytes, 16) == 0) {
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_ERROR, "Destination address must not appear in the source route list");
|
|
}
|
|
|
|
/* Multicast addresses MUST NOT appear in the in SRH */
|
|
if(E_IN6_IS_ADDR_MULTICAST(&addr)){
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_ERROR, "Multicast addresses must not appear in the source route list");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* We use cmprE for last address for how many bytes to elide, so actual bytes present = 16-CmprE */
|
|
if (segments == 1) {
|
|
struct e_in6_addr addr;
|
|
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_routing_hdr_rpl_addr, tvb, offset, (16-cmprI), ENC_NA);
|
|
/* Display Full Address */
|
|
memcpy((guint8 *)&addr, (guint8 *)&dstAddr, sizeof(dstAddr));
|
|
tvb_memcpy(tvb, (guint8 *)&addr + cmprE, offset, (16-cmprE));
|
|
ti = proto_tree_add_ipv6(rthdr_tree, hf_ipv6_routing_hdr_rpl_fulladdr, tvb, offset, (16-cmprE), (guint8 *)&addr);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
/* offset += (16-cmprE); */
|
|
|
|
if(g_ipv6_rpl_srh_strict_rfc_checking){
|
|
/* IPv6 Source and Destination addresses of the encapsulating datagram (MUST) not appear in the SRH*/
|
|
if (memcmp(addr.bytes, srcAddr.bytes, 16) == 0) {
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_ERROR, "Source address must not appear in the source route list");
|
|
}
|
|
|
|
if (memcmp(addr.bytes, dstAddr.bytes, 16) == 0) {
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_ERROR, "Destination address must not appear in the source route list");
|
|
}
|
|
|
|
/* Multicast addresses MUST NOT appear in the in SRH */
|
|
if(E_IN6_IS_ADDR_MULTICAST(&addr)){
|
|
expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_ERROR, "Multicast addresses must not appear in the source route list");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static int
|
|
dissect_frag6(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree,
|
|
guint16 *offlg, guint32 *ident) {
|
|
struct ip6_frag frag;
|
|
int len;
|
|
proto_item *ti;
|
|
proto_tree *rthdr_tree;
|
|
|
|
tvb_memcpy(tvb, (guint8 *)&frag, offset, sizeof(frag));
|
|
len = sizeof(frag);
|
|
frag.ip6f_offlg = g_ntohs(frag.ip6f_offlg);
|
|
frag.ip6f_ident = g_ntohl(frag.ip6f_ident);
|
|
*offlg = frag.ip6f_offlg;
|
|
*ident = frag.ip6f_ident;
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_add_fstr(pinfo->cinfo, COL_INFO,
|
|
"IPv6 fragment (nxt=%s (%u) off=%u id=0x%x)",
|
|
ipprotostr(frag.ip6f_nxt), frag.ip6f_nxt,
|
|
(frag.ip6f_offlg & IP6F_OFF_MASK) >> IP6F_OFF_SHIFT, frag.ip6f_ident);
|
|
}
|
|
if (tree) {
|
|
ti = proto_tree_add_text(tree, tvb, offset, len,
|
|
"Fragmentation Header");
|
|
rthdr_tree = proto_item_add_subtree(ti, ett_ipv6);
|
|
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_frag_nxt, tvb,
|
|
offset + (int)offsetof(struct ip6_frag, ip6f_nxt), 1,
|
|
ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_frag_reserved, tvb,
|
|
offset + (int)offsetof(struct ip6_frag, ip6f_reserved), 1,
|
|
ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_frag_offset, tvb,
|
|
offset + (int)offsetof(struct ip6_frag, ip6f_offlg), 2, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_frag_reserved_bits, tvb,
|
|
offset + (int)offsetof(struct ip6_frag, ip6f_offlg), 2, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_frag_more, tvb,
|
|
offset + (int)offsetof(struct ip6_frag, ip6f_offlg), 2, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(rthdr_tree, hf_ipv6_frag_id, tvb,
|
|
offset + (int)offsetof(struct ip6_frag, ip6f_ident), 4, ENC_BIG_ENDIAN);
|
|
}
|
|
return len;
|
|
}
|
|
|
|
static const value_string rtalertvals[] = {
|
|
{ IP6OPT_RTALERT_MLD, "MLD" },
|
|
{ IP6OPT_RTALERT_RSVP, "RSVP" },
|
|
{ IP6OPT_RTALERT_ACTNET, "Active Network" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_unknown_option(tvbuff_t *tvb, int offset, proto_tree *tree)
|
|
{
|
|
int len;
|
|
proto_tree *unkopt_tree;
|
|
proto_item *ti, *ti_len;
|
|
|
|
len = (tvb_get_guint8(tvb, offset + 1) + 1) << 3;
|
|
|
|
if (tree) {
|
|
/* !!! specify length */
|
|
ti = proto_tree_add_item(tree, hf_ipv6_unk_hdr, tvb, offset, len, ENC_NA);
|
|
|
|
unkopt_tree = proto_item_add_subtree(ti, ett_ipv6);
|
|
|
|
proto_tree_add_item(unkopt_tree, hf_ipv6_nxt, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
|
|
ti_len = proto_tree_add_item(unkopt_tree, hf_ipv6_opt_length, tvb, offset, 1, ENC_NA);
|
|
proto_item_append_text(ti_len, " (%d byte%s)", len, plurality(len, "", "s"));
|
|
/* offset += 1; */
|
|
}
|
|
return len;
|
|
}
|
|
|
|
static int
|
|
dissect_opts(tvbuff_t *tvb, int offset, proto_tree *tree, packet_info * pinfo, const int hf_option_item)
|
|
{
|
|
int len;
|
|
int offset_end;
|
|
proto_tree *dstopt_tree, *opt_tree;
|
|
proto_item *ti, *ti_len, *ti_opt, *ti_opt_len;
|
|
guint8 opt_len, opt_type;
|
|
|
|
len = (tvb_get_guint8(tvb, offset + 1) + 1) << 3;
|
|
offset_end = offset + len;
|
|
|
|
if (tree) {
|
|
/* !!! specify length */
|
|
ti = proto_tree_add_item(tree, hf_option_item, tvb, offset, len, ENC_NA);
|
|
|
|
dstopt_tree = proto_item_add_subtree(ti, ett_ipv6);
|
|
|
|
proto_tree_add_item(dstopt_tree, hf_ipv6_nxt, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
|
|
ti_len = proto_tree_add_item(dstopt_tree, hf_ipv6_opt_length, tvb, offset, 1, ENC_NA);
|
|
proto_item_append_text(ti_len, " (%d byte%s)", len, plurality(len, "", "s"));
|
|
offset += 1;
|
|
|
|
while (offset_end > offset) {
|
|
/* there are more options */
|
|
|
|
/* IPv6 Option */
|
|
ti_opt = proto_tree_add_item(dstopt_tree, hf_ipv6_opt, tvb, offset, 1, ENC_NA);
|
|
opt_tree = proto_item_add_subtree(ti_opt, ett_ipv6_opt);
|
|
|
|
/* Option type */
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_type, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
opt_type = tvb_get_guint8(tvb, offset);
|
|
|
|
/* Add option name to option root label */
|
|
proto_item_append_text(ti_opt, " (%s", val_to_str(opt_type, ipv6_opt_vals, "Unknown %d"));
|
|
|
|
/* The Pad1 option is a special case, and contains no data. */
|
|
if (opt_type == IP6OPT_PAD1) {
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_pad1, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_item_append_text(ti_opt, ")");
|
|
continue;
|
|
}
|
|
offset += 1;
|
|
|
|
/* Option length */
|
|
ti_opt_len = proto_tree_add_item(opt_tree, hf_ipv6_opt_length, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
opt_len = tvb_get_guint8(tvb, offset);
|
|
proto_item_set_len(ti_opt, opt_len + 2);
|
|
offset += 1;
|
|
|
|
switch (opt_type) {
|
|
case IP6OPT_PADN:
|
|
/* RFC 2460 states :
|
|
* "The PadN option is used to insert two or more octets of
|
|
* padding into the Options area of a header. For N octets of
|
|
* padding, the Opt Data Len field contains the value N-2, and
|
|
* the Option Data consists of N-2 zero-valued octets."
|
|
*/
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_padn, tvb,
|
|
offset, opt_len, ENC_NA);
|
|
offset += opt_len;
|
|
break;
|
|
case IP6OPT_TEL:
|
|
if (opt_len != 1) {
|
|
expert_add_info_format(pinfo, ti_opt_len, PI_MALFORMED, PI_ERROR,
|
|
"Tunnel Encapsulation Limit: Invalid length (%u bytes)", opt_len);
|
|
}
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_tel, tvb,
|
|
offset, 1, ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
break;
|
|
case IP6OPT_JUMBO:
|
|
if (opt_len != 4) {
|
|
expert_add_info_format(pinfo, ti_opt_len, PI_MALFORMED, PI_ERROR,
|
|
"Jumbo payload: Invalid length (%u bytes)", opt_len);
|
|
}
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_jumbo, tvb,
|
|
offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
break;
|
|
case IP6OPT_RTALERT:
|
|
{
|
|
if (opt_len != 2) {
|
|
expert_add_info_format(pinfo, ti_opt_len, PI_MALFORMED, PI_ERROR,
|
|
"Router alert: Invalid Length (%u bytes)",
|
|
opt_len + 2);
|
|
}
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_rtalert, tvb,
|
|
offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
break;
|
|
}
|
|
case IP6OPT_HOME_ADDRESS:
|
|
if (opt_len != 16) {
|
|
expert_add_info_format(pinfo, ti_opt_len, PI_MALFORMED, PI_ERROR,
|
|
"Home Address: Invalid length (%u bytes)", opt_len);
|
|
}
|
|
proto_tree_add_item(opt_tree, hf_ipv6_mipv6_home_address, tvb,
|
|
offset, 16, ENC_NA);
|
|
TVB_SET_ADDRESS(&pinfo->src, AT_IPv6, tvb, offset, 16);
|
|
offset += 16;
|
|
break;
|
|
case IP6OPT_CALIPSO:
|
|
{
|
|
guint8 cmpt_length;
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_calipso_doi, tvb,
|
|
offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_calipso_cmpt_length, tvb,
|
|
offset, 1, ENC_BIG_ENDIAN);
|
|
cmpt_length = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_calipso_sens_level, tvb,
|
|
offset, 1, ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
/* Need to add Check Checksum..*/
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_calipso_checksum, tvb,
|
|
offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_calipso_cmpt_bitmap, tvb,
|
|
offset, cmpt_length, ENC_NA);
|
|
offset += cmpt_length;
|
|
break;
|
|
}
|
|
case IP6OPT_QUICKSTART:
|
|
{
|
|
|
|
guint8 command = tvb_get_guint8(tvb, offset);
|
|
guint8 function = command >> 4;
|
|
guint8 rate = command & QS_RATE_MASK;
|
|
guint8 ttl_diff;
|
|
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_qs_func, tvb, offset, 1, ENC_NA);
|
|
|
|
if (function == QS_RATE_REQUEST) {
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_qs_rate, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_qs_ttl, tvb, offset, 1, ENC_NA);
|
|
ttl_diff = (pinfo->ip_ttl - tvb_get_guint8(tvb, offset) % 256);
|
|
offset += 1;
|
|
ti = proto_tree_add_uint_format_value(opt_tree, hf_ipv6_opt_qs_ttl_diff,
|
|
tvb, offset, 1, ttl_diff,
|
|
"%u", ttl_diff);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
proto_item_append_text(ti_opt, ", %s, QS TTL %u, QS TTL diff %u",
|
|
val_to_str_ext(rate, &qs_rate_vals_ext, "Unknown (%u)"),
|
|
tvb_get_guint8(tvb, offset), ttl_diff);
|
|
offset += 1;
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_qs_nonce, tvb, offset, 4, ENC_NA);
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_qs_reserved, tvb, offset, 4, ENC_NA);
|
|
offset += 4;
|
|
} else if (function == QS_RATE_REPORT) {
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_qs_rate, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_item_append_text(ti_opt, ", %s",
|
|
val_to_str_ext(rate, &qs_rate_vals_ext, "Unknown (%u)"));
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_qs_unused, tvb, offset, 1, ENC_NA);
|
|
offset += 1;
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_qs_nonce, tvb, offset, 4, ENC_NA);
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_qs_reserved, tvb, offset, 4, ENC_NA);
|
|
offset += 4;
|
|
}
|
|
|
|
}
|
|
break;
|
|
case IP6OPT_RPL:
|
|
{
|
|
proto_tree *flag_tree;
|
|
proto_item *ti_flag;
|
|
|
|
ti_flag = proto_tree_add_item(opt_tree, hf_ipv6_opt_rpl_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
flag_tree = proto_item_add_subtree(ti_flag, ett_ipv6_opt_flag);
|
|
proto_tree_add_item(flag_tree, hf_ipv6_opt_rpl_flag_o, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(flag_tree, hf_ipv6_opt_rpl_flag_r, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(flag_tree, hf_ipv6_opt_rpl_flag_f, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(flag_tree, hf_ipv6_opt_rpl_flag_rsv, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset +=1;
|
|
|
|
proto_tree_add_item(flag_tree, hf_ipv6_opt_rpl_instance_id, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset +=1;
|
|
|
|
proto_tree_add_item(flag_tree, hf_ipv6_opt_rpl_senderrank, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset +=2;
|
|
|
|
/* TODO: Add dissector of sub TLV */
|
|
}
|
|
break;
|
|
case IP6OPT_EXP_1E:
|
|
case IP6OPT_EXP_3E:
|
|
case IP6OPT_EXP_5E:
|
|
case IP6OPT_EXP_7E:
|
|
case IP6OPT_EXP_9E:
|
|
case IP6OPT_EXP_BE:
|
|
case IP6OPT_EXP_DE:
|
|
case IP6OPT_EXP_FE:
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_experimental, tvb,
|
|
offset, opt_len, ENC_NA);
|
|
offset += opt_len;
|
|
break;
|
|
default:
|
|
proto_tree_add_item(opt_tree, hf_ipv6_opt_unknown, tvb,
|
|
offset, opt_len, ENC_NA);
|
|
offset += opt_len;
|
|
break;
|
|
}
|
|
/* Close the ) to option root label */
|
|
proto_item_append_text(ti_opt, ")");
|
|
}
|
|
|
|
}
|
|
return len;
|
|
}
|
|
|
|
static int
|
|
dissect_hopopts(tvbuff_t *tvb, int offset, proto_tree *tree, packet_info * pinfo)
|
|
{
|
|
return dissect_opts(tvb, offset, tree, pinfo, hf_ipv6_hop_opt);
|
|
}
|
|
|
|
static int
|
|
dissect_dstopts(tvbuff_t *tvb, int offset, proto_tree *tree, packet_info * pinfo)
|
|
{
|
|
return dissect_opts(tvb, offset, tree, pinfo, hf_ipv6_dst_opt);
|
|
}
|
|
|
|
/* START SHIM6 PART */
|
|
static guint16 shim_checksum(const guint8 *ptr, int len)
|
|
{
|
|
vec_t cksum_vec[1];
|
|
|
|
cksum_vec[0].ptr = ptr;
|
|
cksum_vec[0].len = len;
|
|
return in_cksum(&cksum_vec[0], 1);
|
|
}
|
|
|
|
static int
|
|
dissect_shim_hex(tvbuff_t *tvb, int offset, int len, const char *itemname, guint8 bitmask, proto_tree *tree)
|
|
{
|
|
proto_item *ti;
|
|
int count;
|
|
gint p;
|
|
|
|
p = offset;
|
|
|
|
ti = proto_tree_add_text(tree, tvb, offset, len, "%s", itemname);
|
|
|
|
proto_item_append_text(ti, " 0x%02x", tvb_get_guint8(tvb, p) & bitmask);
|
|
for (count=1; count<len; count++)
|
|
proto_item_append_text(ti, "%02x", tvb_get_guint8(tvb, p+count));
|
|
|
|
return len;
|
|
}
|
|
|
|
static const value_string shimoptvals[] = {
|
|
{ SHIM6_OPT_RESPVAL, "Responder Validator Option" },
|
|
{ SHIM6_OPT_LOCLIST, "Locator List Option" },
|
|
{ SHIM6_OPT_LOCPREF, "Locator Preferences Option" },
|
|
{ SHIM6_OPT_CGAPDM, "CGA Parameter Data Structure Option" },
|
|
{ SHIM6_OPT_CGASIG, "CGA Signature Option" },
|
|
{ SHIM6_OPT_ULIDPAIR, "ULID Pair Option" },
|
|
{ SHIM6_OPT_FII, "Forked Instance Identifier Option" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string shimverifmethods[] = {
|
|
{ SHIM6_VERIF_HBA, "HBA" },
|
|
{ SHIM6_VERIF_CGA, "CGA" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string shimflags[] _U_ = {
|
|
{ SHIM6_FLAG_BROKEN, "BROKEN" },
|
|
{ SHIM6_FLAG_TEMPORARY, "TEMPORARY" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string shimreapstates[] = {
|
|
{ SHIM6_REAP_OPERATIONAL, "Operational" },
|
|
{ SHIM6_REAP_EXPLORING, "Exploring" },
|
|
{ SHIM6_REAP_INBOUNDOK, "InboundOK" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string shim6_protocol[] = {
|
|
{ 0, "SHIM6" },
|
|
{ 1, "HIP" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
|
|
static void
|
|
dissect_shim6_opt_loclist(proto_tree * opt_tree, tvbuff_t * tvb, gint *offset)
|
|
{
|
|
proto_item * it;
|
|
proto_tree * subtree;
|
|
guint count;
|
|
guint optlen;
|
|
int p = *offset;
|
|
|
|
proto_tree_add_item(opt_tree, hf_ipv6_shim6_opt_loclist, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
|
|
optlen = tvb_get_guint8(tvb, p);
|
|
proto_tree_add_item(opt_tree, hf_ipv6_shim6_opt_locnum, tvb, p, 1, ENC_BIG_ENDIAN);
|
|
p++;
|
|
|
|
/* Verification Methods */
|
|
it = proto_tree_add_text(opt_tree, tvb, p, optlen,
|
|
"Locator Verification Methods");
|
|
subtree = proto_item_add_subtree(it, ett_ipv6_shim6_verif_methods);
|
|
|
|
for (count=0; count < optlen; count++)
|
|
proto_tree_add_item(subtree, hf_ipv6_shim6_opt_loc_verif_methods, tvb,
|
|
p+count, 1, ENC_BIG_ENDIAN);
|
|
p += optlen;
|
|
|
|
/* Padding, included in length field */
|
|
if ((7 - optlen % 8) > 0) {
|
|
proto_tree_add_text(opt_tree, tvb, p, (7 - optlen % 8), "Padding");
|
|
p += (7 - optlen % 8);
|
|
}
|
|
|
|
/* Locators */
|
|
it = proto_tree_add_text(opt_tree, tvb, p, 16 * optlen, "Locators");
|
|
subtree = proto_item_add_subtree(it, ett_ipv6_shim6_locators);
|
|
|
|
for (count=0; count < optlen; count++) {
|
|
proto_tree_add_item(subtree, hf_ipv6_shim6_locator, tvb, p, 16, ENC_NA);
|
|
p += 16;
|
|
}
|
|
*offset = p;
|
|
}
|
|
|
|
static void
|
|
dissect_shim6_opt_loc_pref(proto_tree * opt_tree, tvbuff_t * tvb, gint *offset, gint len, packet_info *pinfo)
|
|
{
|
|
proto_tree * subtree;
|
|
proto_item * it;
|
|
|
|
gint p;
|
|
gint optlen;
|
|
gint count;
|
|
|
|
p = *offset;
|
|
|
|
proto_tree_add_item(opt_tree, hf_ipv6_shim6_opt_loclist, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
|
|
optlen = tvb_get_guint8(tvb, p);
|
|
proto_tree_add_item(opt_tree, hf_ipv6_shim6_opt_elemlen, tvb, p, 1, ENC_BIG_ENDIAN);
|
|
|
|
if (optlen < 1 || optlen > 3) {
|
|
it = proto_tree_add_text(opt_tree, tvb, p, 1,
|
|
"Invalid element length: %u", optlen);
|
|
expert_add_info_format(pinfo, it, PI_MALFORMED, PI_ERROR,
|
|
"Invalid element length: %u", optlen);
|
|
return;
|
|
}
|
|
|
|
p++;
|
|
|
|
/* Locator Preferences */
|
|
count = 1;
|
|
while (p < len) {
|
|
it = proto_tree_add_text(opt_tree, tvb, p, optlen, "Locator Preferences %u", count);
|
|
subtree = proto_item_add_subtree(it, ett_ipv6_shim6_loc_pref);
|
|
|
|
/* Flags */
|
|
if (optlen >= 1)
|
|
proto_tree_add_item(subtree, hf_ipv6_shim6_loc_flag, tvb, p, 1, ENC_BIG_ENDIAN);
|
|
/* Priority */
|
|
if (optlen >= 2)
|
|
proto_tree_add_item(subtree, hf_ipv6_shim6_loc_prio, tvb, p+1, 1, ENC_BIG_ENDIAN);
|
|
/* Weight */
|
|
if (optlen >= 3)
|
|
proto_tree_add_item(subtree, hf_ipv6_shim6_loc_weight, tvb, p+2, 1, ENC_BIG_ENDIAN);
|
|
/*
|
|
* Shim6 Draft 08 doesn't specify the format when the Element length is
|
|
* more than three, except that any such formats MUST be defined so that
|
|
* the first three octets are the same as in the above case, that is, a
|
|
* of a 1 octet flags field followed by a 1 octet priority field, and a
|
|
* 1 octet weight field.
|
|
*/
|
|
p += optlen;
|
|
count++;
|
|
}
|
|
*offset = p;
|
|
}
|
|
|
|
|
|
static int
|
|
dissect_shimopts(tvbuff_t *tvb, int offset, proto_tree *tree, packet_info *pinfo)
|
|
{
|
|
int len, total_len;
|
|
gint p;
|
|
gint padding;
|
|
proto_tree *opt_tree;
|
|
proto_item *ti;
|
|
const gchar *ctype;
|
|
|
|
|
|
p = offset;
|
|
|
|
p += 4;
|
|
|
|
len = tvb_get_ntohs(tvb, offset+2);
|
|
padding = 7 - ((len + 3) % 8);
|
|
total_len = 4 + len + padding;
|
|
|
|
if (tree)
|
|
{
|
|
/* Option Type */
|
|
ctype = val_to_str_const( (tvb_get_ntohs(tvb, offset) & SHIM6_BITMASK_OPT_TYPE) >> 1, shimoptvals, "Unknown Option Type");
|
|
ti = proto_tree_add_text(tree, tvb, offset, total_len, "%s", ctype);
|
|
opt_tree = proto_item_add_subtree(ti, ett_ipv6_shim6_option);
|
|
|
|
proto_tree_add_item(opt_tree, hf_ipv6_shim6_opt_type, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
/* Critical */
|
|
proto_tree_add_item(opt_tree, hf_ipv6_shim6_opt_critical, tvb, offset+1, 1, ENC_BIG_ENDIAN);
|
|
|
|
/* Content Length */
|
|
proto_tree_add_item(opt_tree, hf_ipv6_shim6_opt_len, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
|
|
ti = proto_tree_add_uint_format(opt_tree, hf_ipv6_shim6_opt_total_len, tvb, offset+2, 2,
|
|
total_len, "Total Length: %u", total_len);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
|
|
/* Option Type Specific */
|
|
switch (tvb_get_ntohs(tvb, offset) >> 1)
|
|
{
|
|
case SHIM6_OPT_RESPVAL:
|
|
p += dissect_shim_hex(tvb, p, len, "Validator:", 0xff, opt_tree);
|
|
if (total_len-(len+4) > 0)
|
|
proto_tree_add_text(opt_tree, tvb, p, total_len-(len+4), "Padding");
|
|
break;
|
|
case SHIM6_OPT_LOCLIST:
|
|
dissect_shim6_opt_loclist(opt_tree, tvb, &p);
|
|
break;
|
|
case SHIM6_OPT_LOCPREF:
|
|
dissect_shim6_opt_loc_pref(opt_tree, tvb, &p, offset+len+4, pinfo);
|
|
if (total_len-(len+4) > 0)
|
|
proto_tree_add_text(opt_tree, tvb, p, total_len-(len+4), "Padding");
|
|
break;
|
|
case SHIM6_OPT_CGAPDM:
|
|
p += dissect_shim_hex(tvb, p, len, "CGA Parameter Data Structure:", 0xff, opt_tree);
|
|
if (total_len-(len+4) > 0)
|
|
proto_tree_add_text(opt_tree, tvb, p, total_len-(len+4), "Padding");
|
|
break;
|
|
case SHIM6_OPT_CGASIG:
|
|
p += dissect_shim_hex(tvb, p, len, "CGA Signature:", 0xff, opt_tree);
|
|
if (total_len-(len+4) > 0)
|
|
proto_tree_add_text(opt_tree, tvb, p, total_len-(len+4), "Padding");
|
|
break;
|
|
case SHIM6_OPT_ULIDPAIR:
|
|
proto_tree_add_text(opt_tree, tvb, p, 4, "Reserved");
|
|
p += 4;
|
|
proto_tree_add_item(opt_tree, hf_ipv6_shim6_sulid, tvb, p, 16, ENC_NA);
|
|
p += 16;
|
|
proto_tree_add_item(opt_tree, hf_ipv6_shim6_rulid, tvb, p, 16, ENC_NA);
|
|
p += 16;
|
|
break;
|
|
case SHIM6_OPT_FII:
|
|
proto_tree_add_item(opt_tree, hf_ipv6_shim6_opt_fii, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return total_len;
|
|
}
|
|
|
|
static void
|
|
dissect_shim6_ct(proto_tree * shim_tree, gint hf_item, tvbuff_t * tvb, gint offset, const guchar * label)
|
|
{
|
|
guint8 tmp[6];
|
|
guchar * ct_str;
|
|
|
|
tmp[0] = tvb_get_guint8(tvb, offset++);
|
|
tmp[1] = tvb_get_guint8(tvb, offset++);
|
|
tmp[2] = tvb_get_guint8(tvb, offset++);
|
|
tmp[3] = tvb_get_guint8(tvb, offset++);
|
|
tmp[4] = tvb_get_guint8(tvb, offset++);
|
|
tmp[5] = tvb_get_guint8(tvb, offset++);
|
|
|
|
ct_str = ep_strdup_printf("%s: %02X %02X %02X %02X %02X %02X", label,
|
|
tmp[0] & SHIM6_BITMASK_CT, tmp[1], tmp[2],
|
|
tmp[3], tmp[4], tmp[5]
|
|
);
|
|
proto_tree_add_none_format(shim_tree, hf_item, tvb, offset - 6, 6, "%s", ct_str);
|
|
}
|
|
|
|
static void
|
|
dissect_shim6_probes(proto_tree * shim_tree, tvbuff_t * tvb, gint offset,
|
|
const guchar * label, guint nbr_probe,
|
|
gboolean probes_rcvd)
|
|
{
|
|
proto_tree * probes_tree;
|
|
proto_tree * probe_tree;
|
|
proto_item * it;
|
|
gint ett_probes;
|
|
gint ett_probe;
|
|
guint count;
|
|
|
|
if (probes_rcvd) {
|
|
ett_probes = ett_ipv6_shim6_probes_rcvd;
|
|
ett_probe = ett_ipv6_shim6_probe_rcvd;
|
|
} else {
|
|
ett_probes = ett_ipv6_shim6_probes_sent;
|
|
ett_probe = ett_ipv6_shim6_probe_sent;
|
|
}
|
|
it = proto_tree_add_text(shim_tree, tvb, offset, 40 * nbr_probe, "%s", label);
|
|
probes_tree = proto_item_add_subtree(it, ett_probes);
|
|
|
|
for (count=0; count < nbr_probe; count++) {
|
|
it = proto_tree_add_text(probes_tree, tvb, offset, 40, "Probe %u", count+1);
|
|
probe_tree = proto_item_add_subtree(it, ett_probe);
|
|
|
|
proto_tree_add_item(probe_tree, hf_ipv6_shim6_psrc, tvb, offset, 16, ENC_NA);
|
|
offset += 16;
|
|
proto_tree_add_item(probe_tree, hf_ipv6_shim6_pdst, tvb, offset, 16, ENC_NA);
|
|
offset += 16;
|
|
|
|
proto_tree_add_item(probe_tree, hf_ipv6_shim6_pnonce, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(probe_tree, hf_ipv6_shim6_pdata, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
}
|
|
|
|
/* Dissect SHIM6 data: control messages */
|
|
static int
|
|
dissect_shimctrl(tvbuff_t *tvb, gint offset, guint type, proto_tree *shim_tree)
|
|
{
|
|
gint p;
|
|
guint8 tmp;
|
|
const gchar *sta;
|
|
guint probes_sent;
|
|
guint probes_rcvd;
|
|
|
|
p = offset;
|
|
|
|
switch (type)
|
|
{
|
|
case SHIM6_TYPE_I1:
|
|
dissect_shim6_ct(shim_tree, hf_ipv6_shim6_ct, tvb, p, "Initiator Context Tag");
|
|
p += 6;
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_inonce, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
break;
|
|
case SHIM6_TYPE_R1:
|
|
proto_tree_add_text(shim_tree, tvb, p, 2, "Reserved2");
|
|
p += 2;
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_inonce, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_rnonce, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
break;
|
|
case SHIM6_TYPE_I2:
|
|
dissect_shim6_ct(shim_tree, hf_ipv6_shim6_ct, tvb, p, "Initiator Context Tag");
|
|
p += 6;
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_inonce, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_rnonce, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
proto_tree_add_text(shim_tree, tvb, p, 4, "Reserved2");
|
|
p += 4;
|
|
break;
|
|
case SHIM6_TYPE_R2:
|
|
dissect_shim6_ct(shim_tree, hf_ipv6_shim6_ct, tvb, p, "Responder Context Tag");
|
|
p += 6;
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_inonce, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
break;
|
|
case SHIM6_TYPE_R1BIS:
|
|
dissect_shim6_ct(shim_tree, hf_ipv6_shim6_ct, tvb, p, "Packet Context Tag");
|
|
p += 6;
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_rnonce, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
break;
|
|
case SHIM6_TYPE_I2BIS:
|
|
dissect_shim6_ct(shim_tree, hf_ipv6_shim6_ct, tvb, p, "Initiator Context Tag");
|
|
p += 6;
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_inonce, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_rnonce, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
proto_tree_add_text(shim_tree, tvb, p, 6, "Reserved2");
|
|
p += 6;
|
|
dissect_shim6_ct(shim_tree, hf_ipv6_shim6_ct, tvb, p, "Initiator Context Tag");
|
|
p += 6;
|
|
break;
|
|
case SHIM6_TYPE_UPD_REQ:
|
|
case SHIM6_TYPE_UPD_ACK:
|
|
dissect_shim6_ct(shim_tree, hf_ipv6_shim6_ct, tvb, p, "Receiver Context Tag");
|
|
p += 6;
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_rnonce, tvb, p, 4, ENC_BIG_ENDIAN);
|
|
p += 4;
|
|
break;
|
|
case SHIM6_TYPE_KEEPALIVE:
|
|
dissect_shim6_ct(shim_tree, hf_ipv6_shim6_ct, tvb, p, "Receiver Context Tag");
|
|
p += 6;
|
|
proto_tree_add_text(shim_tree, tvb, p, 4, "Reserved2");
|
|
p += 4;
|
|
break;
|
|
case SHIM6_TYPE_PROBE:
|
|
dissect_shim6_ct(shim_tree, hf_ipv6_shim6_ct, tvb, p, "Receiver Context Tag");
|
|
p += 6;
|
|
|
|
tmp = tvb_get_guint8(tvb, p);
|
|
probes_sent = tmp & SHIM6_BITMASK_PSENT;
|
|
probes_rcvd = (tmp & SHIM6_BITMASK_PRECVD) >> 4;
|
|
|
|
proto_tree_add_uint_format(shim_tree, hf_ipv6_shim6_psent, tvb,
|
|
p, 1, probes_sent,
|
|
"Probes Sent: %u", probes_sent);
|
|
proto_tree_add_uint_format(shim_tree, hf_ipv6_shim6_precvd, tvb,
|
|
p, 1, probes_rcvd,
|
|
"Probes Received: %u", probes_rcvd);
|
|
p++;
|
|
|
|
sta = val_to_str_const((tvb_get_guint8(tvb, p) & SHIM6_BITMASK_STA) >> 6,
|
|
shimreapstates, "Unknown REAP State");
|
|
proto_tree_add_uint_format(shim_tree, hf_ipv6_shim6_reap, tvb,
|
|
p, 1, (tvb_get_guint8(tvb, p) & SHIM6_BITMASK_STA) >> 6,
|
|
"REAP State: %s", sta);
|
|
|
|
proto_tree_add_text(shim_tree, tvb, p, 3, "Reserved2");
|
|
p += 3;
|
|
|
|
/* Probes Sent */
|
|
if (probes_sent) {
|
|
dissect_shim6_probes(shim_tree, tvb, p, "Probes Sent",
|
|
probes_sent, FALSE);
|
|
p += 40 * probes_sent;
|
|
}
|
|
|
|
/* Probes Received */
|
|
if (probes_rcvd) {
|
|
dissect_shim6_probes(shim_tree, tvb, p, "Probes Received",
|
|
probes_rcvd, TRUE);
|
|
p += 40 * probes_rcvd;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return p-offset;
|
|
}
|
|
|
|
/* Dissect SHIM6 data: payload, common part, options */
|
|
static const value_string shimctrlvals[] = {
|
|
{ SHIM6_TYPE_I1, "I1" },
|
|
{ SHIM6_TYPE_R1, "R1" },
|
|
{ SHIM6_TYPE_I2, "I2" },
|
|
{ SHIM6_TYPE_R2, "R2" },
|
|
{ SHIM6_TYPE_R1BIS, "R1bis" },
|
|
{ SHIM6_TYPE_I2BIS, "I2bis" },
|
|
{ SHIM6_TYPE_UPD_REQ, "Update Request" },
|
|
{ SHIM6_TYPE_UPD_ACK, "Update Acknowledgment" },
|
|
{ SHIM6_TYPE_KEEPALIVE, "Keepalive" },
|
|
{ SHIM6_TYPE_PROBE, "Probe" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static void ipv6_shim6_checkum_additional_info(tvbuff_t * tvb, packet_info * pinfo,
|
|
proto_item * it_cksum, int offset, gboolean is_cksum_correct)
|
|
{
|
|
proto_tree * checksum_tree;
|
|
proto_item * item;
|
|
|
|
checksum_tree = proto_item_add_subtree(it_cksum, ett_ipv6_shim6_cksum);
|
|
item = proto_tree_add_boolean(checksum_tree, hf_ipv6_shim6_checksum_good, tvb,
|
|
offset, 2, is_cksum_correct);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
item = proto_tree_add_boolean(checksum_tree, hf_ipv6_shim6_checksum_bad, tvb,
|
|
offset, 2, !is_cksum_correct);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
if (!is_cksum_correct) {
|
|
expert_add_info_format(pinfo, item, PI_CHECKSUM, PI_ERROR, "Bad checksum");
|
|
col_append_str(pinfo->cinfo, COL_INFO, " [Shim6 CHECKSUM INCORRECT]");
|
|
}
|
|
}
|
|
|
|
static int
|
|
dissect_shim6(tvbuff_t *tvb, int offset, proto_tree *tree, packet_info * pinfo)
|
|
{
|
|
struct ip6_shim shim;
|
|
int len;
|
|
gint p;
|
|
proto_tree *shim_tree;
|
|
proto_item *ti;
|
|
guint8 tmp[5];
|
|
|
|
tvb_memcpy(tvb, (guint8 *)&shim, offset, sizeof(shim));
|
|
len = (shim.ip6s_len + 1) << 3;
|
|
|
|
if (tree)
|
|
{
|
|
ti = proto_tree_add_item(tree, hf_ipv6_shim6, tvb, offset, len, ENC_NA);
|
|
shim_tree = proto_item_add_subtree(ti, ett_ipv6_shim6);
|
|
|
|
/* Next Header */
|
|
proto_tree_add_uint_format(shim_tree, hf_ipv6_shim6_nxt, tvb,
|
|
offset + (int)offsetof(struct ip6_shim, ip6s_nxt), 1, shim.ip6s_nxt,
|
|
"Next header: %s (%u)", ipprotostr(shim.ip6s_nxt), shim.ip6s_nxt);
|
|
|
|
/* Header Extension Length */
|
|
proto_tree_add_uint_format(shim_tree, hf_ipv6_shim6_len, tvb,
|
|
offset + (int)offsetof(struct ip6_shim, ip6s_len), 1, shim.ip6s_len,
|
|
"Header Ext Length: %u (%d bytes)", shim.ip6s_len, len);
|
|
|
|
/* P Field */
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_p, tvb,
|
|
offset + (int)offsetof(struct ip6_shim, ip6s_p), 1, ENC_BIG_ENDIAN);
|
|
|
|
/* skip the first 2 bytes (nxt hdr, hdr ext len, p+7bits) */
|
|
p = offset + 3;
|
|
|
|
if (shim.ip6s_p & SHIM6_BITMASK_P)
|
|
{
|
|
tmp[0] = tvb_get_guint8(tvb, p++);
|
|
tmp[1] = tvb_get_guint8(tvb, p++);
|
|
tmp[2] = tvb_get_guint8(tvb, p++);
|
|
tmp[3] = tvb_get_guint8(tvb, p++);
|
|
tmp[4] = tvb_get_guint8(tvb, p++);
|
|
|
|
/* Payload Extension Header */
|
|
proto_tree_add_none_format(shim_tree, hf_ipv6_shim6_ct, tvb,
|
|
offset + (int)offsetof(struct ip6_shim, ip6s_p), 6,
|
|
"Receiver Context Tag: %02x %02x %02x %02x %02x %02x",
|
|
shim.ip6s_p & SHIM6_BITMASK_CT, tmp[0], tmp[1], tmp[2], tmp[3], tmp[4]);
|
|
}
|
|
else
|
|
{
|
|
/* Control Message */
|
|
guint16 csum;
|
|
int advance;
|
|
|
|
/* Message Type */
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_type, tvb,
|
|
offset + (int)offsetof(struct ip6_shim, ip6s_p), 1,
|
|
ENC_BIG_ENDIAN
|
|
);
|
|
|
|
/* Protocol bit (Must be zero for SHIM6) */
|
|
proto_tree_add_item(shim_tree, hf_ipv6_shim6_proto, tvb, p, 1, ENC_BIG_ENDIAN);
|
|
p++;
|
|
|
|
/* Checksum */
|
|
csum = shim_checksum(tvb_get_ptr(tvb, offset, len), len);
|
|
|
|
if (csum == 0) {
|
|
ti = proto_tree_add_uint_format(shim_tree, hf_ipv6_shim6_checksum, tvb, p, 2,
|
|
tvb_get_ntohs(tvb, p), "Checksum: 0x%04x [correct]", tvb_get_ntohs(tvb, p));
|
|
ipv6_shim6_checkum_additional_info(tvb, pinfo, ti, p, TRUE);
|
|
} else {
|
|
ti = proto_tree_add_uint_format(shim_tree, hf_ipv6_shim6_checksum, tvb, p, 2,
|
|
tvb_get_ntohs(tvb, p), "Checksum: 0x%04x [incorrect: should be 0x%04x]",
|
|
tvb_get_ntohs(tvb, p), in_cksum_shouldbe(tvb_get_ntohs(tvb, p), csum));
|
|
ipv6_shim6_checkum_additional_info(tvb, pinfo, ti, p, FALSE);
|
|
}
|
|
p += 2;
|
|
|
|
/* Type specific data */
|
|
advance = dissect_shimctrl(tvb, p, shim.ip6s_p & SHIM6_BITMASK_TYPE, shim_tree);
|
|
p += advance;
|
|
|
|
/* Options */
|
|
while (p < offset+len) {
|
|
p += dissect_shimopts(tvb, p, shim_tree, pinfo);
|
|
}
|
|
}
|
|
}
|
|
return len;
|
|
}
|
|
|
|
/* END SHIM6 PART */
|
|
|
|
static void
|
|
dissect_ipv6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_tree *ipv6_tree = NULL;
|
|
proto_item *ipv6_item = NULL, *ti;
|
|
guint8 nxt;
|
|
guint8 stype=0;
|
|
int advance;
|
|
guint16 plen;
|
|
gboolean hopopts, routing, frag, ah, shim6, dstopts;
|
|
guint16 offlg;
|
|
guint32 ident;
|
|
int offset;
|
|
fragment_data *ipfd_head;
|
|
tvbuff_t *next_tvb;
|
|
gboolean update_col_info = TRUE;
|
|
gboolean save_fragmented = FALSE;
|
|
const char *sep = "IPv6 ";
|
|
guint8 *mac_addr;
|
|
|
|
struct ip6_hdr ipv6;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPv6");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
offset = 0;
|
|
tvb_memcpy(tvb, (guint8 *)&ipv6, offset, sizeof(ipv6));
|
|
|
|
/* Get extension header and payload length */
|
|
plen = g_ntohs(ipv6.ip6_plen);
|
|
|
|
/* Adjust the length of this tvbuff to include only the IPv6 datagram. */
|
|
set_actual_length(tvb, plen + (guint)sizeof (struct ip6_hdr));
|
|
|
|
TVB_SET_ADDRESS(&pinfo->net_src, AT_IPv6, tvb, offset + IP6H_SRC, 16);
|
|
TVB_SET_ADDRESS(&pinfo->src, AT_IPv6, tvb, offset + IP6H_SRC, 16);
|
|
TVB_SET_ADDRESS(&pinfo->net_dst, AT_IPv6, tvb, offset + IP6H_DST, 16);
|
|
TVB_SET_ADDRESS(&pinfo->dst, AT_IPv6, tvb, offset + IP6H_DST, 16);
|
|
|
|
if (tree) {
|
|
proto_tree* pt;
|
|
proto_item* pi;
|
|
proto_tree *ipv6_tc_tree;
|
|
proto_item *ipv6_tc;
|
|
const char *name;
|
|
|
|
ipv6_item = proto_tree_add_item(tree, proto_ipv6, tvb, offset, -1, ENC_NA);
|
|
ipv6_tree = proto_item_add_subtree(ipv6_item, ett_ipv6);
|
|
|
|
/* !!! warning: (4-bit) version, (6-bit) DSCP, (1-bit) ECN-ECT, (1-bit) ECN-CE and (20-bit) Flow */
|
|
pi = proto_tree_add_item(ipv6_tree, hf_ipv6_version, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_vfc), 1, ENC_BIG_ENDIAN);
|
|
pt = proto_item_add_subtree(pi,ett_ipv6_version);
|
|
pi = proto_tree_add_item(pt, hf_ip_version, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_vfc), 1, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(pi);
|
|
|
|
ipv6_tc = proto_tree_add_item(ipv6_tree, hf_ipv6_class, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_flow), 4, ENC_BIG_ENDIAN);
|
|
|
|
ipv6_tc_tree = proto_item_add_subtree(ipv6_tc, ett_ipv6_traffic_class);
|
|
|
|
proto_tree_add_item(ipv6_tc_tree, hf_ipv6_traffic_class_dscp, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_flow), 4, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(ipv6_tc_tree, hf_ipv6_traffic_class_ect, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_flow), 4, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(ipv6_tc_tree, hf_ipv6_traffic_class_ce, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_flow), 4, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(ipv6_tree, hf_ipv6_flow, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_flow), 4, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(ipv6_tree, hf_ipv6_plen, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_plen), 2, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_uint_format(ipv6_tree, hf_ipv6_nxt, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_nxt), 1,
|
|
ipv6.ip6_nxt,
|
|
"Next header: %s (%u)",
|
|
ipprotostr(ipv6.ip6_nxt), ipv6.ip6_nxt);
|
|
|
|
proto_tree_add_item(ipv6_tree, hf_ipv6_hlim, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_hlim), 1, ENC_BIG_ENDIAN);
|
|
/* Yes, there is not TTL in IPv6 Header... but it is the same of Hop Limit...*/
|
|
pinfo->ip_ttl = tvb_get_guint8(tvb, offset + (int)offsetof(struct ip6_hdr, ip6_hlim));
|
|
|
|
/* Add the different items for the source address */
|
|
proto_tree_add_item(ipv6_tree, hf_ipv6_src, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_src), 16, ENC_NA);
|
|
ti = proto_tree_add_ipv6(ipv6_tree, hf_ipv6_addr, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_src),
|
|
16, (guint8 *)&ipv6.ip6_src);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
name = get_addr_name(&pinfo->src);
|
|
if (ipv6_summary_in_tree) {
|
|
proto_item_append_text(ipv6_item, ", Src: %s (%s)", name, ip6_to_str(&ipv6.ip6_src));
|
|
}
|
|
ti = proto_tree_add_string(ipv6_tree, hf_ipv6_src_host, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_src),
|
|
16, name);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
ti = proto_tree_add_string(ipv6_tree, hf_ipv6_host, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_src),
|
|
16, name);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
|
|
/* Extract embedded (IPv6 and MAC) address information */
|
|
if (tvb_get_ntohs(tvb, offset + IP6H_SRC) == 0x2002) { /* RFC 3056 section 2 */
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_src_6to4_gateway_ipv4, tvb,
|
|
offset + IP6H_SRC + 2, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_src_6to4_sla_id, tvb,
|
|
offset + IP6H_SRC + 6, 2, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_6to4_gateway_ipv4, tvb,
|
|
offset + IP6H_SRC + 2, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_6to4_sla_id, tvb,
|
|
offset + IP6H_SRC + 6, 2, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
} else if (tvb_get_ntohl(tvb, offset + IP6H_SRC) == 0x20010000) { /* RFC 4380 section 4 */
|
|
guint16 mapped_port = tvb_get_ntohs(tvb, offset + IP6H_SRC + 10) ^ 0xffff;
|
|
guint32 client_v4 = tvb_get_ipv4(tvb, offset + IP6H_SRC + 12) ^ 0xffffffff;
|
|
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_src_teredo_server_ipv4, tvb,
|
|
offset + IP6H_SRC + 4, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_uint(ipv6_tree, hf_ipv6_src_teredo_port, tvb,
|
|
offset + IP6H_SRC + 10, 2, mapped_port);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_ipv4(ipv6_tree, hf_ipv6_src_teredo_client_ipv4, tvb,
|
|
offset + IP6H_SRC + 12, 4, client_v4);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_teredo_server_ipv4, tvb,
|
|
offset + IP6H_SRC + 4, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
ti = proto_tree_add_uint(ipv6_tree, hf_ipv6_teredo_port, tvb,
|
|
offset + IP6H_SRC + 10, 2, mapped_port);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
ti = proto_tree_add_ipv4(ipv6_tree, hf_ipv6_teredo_client_ipv4, tvb,
|
|
offset + IP6H_SRC + 12, 4, client_v4);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
}
|
|
|
|
if (tvb_get_guint8(tvb, offset + IP6H_SRC + 8) & 0x02 && tvb_get_ntohs(tvb, offset + IP6H_SRC + 11) == 0xfffe) { /* RFC 4291 appendix A */
|
|
mac_addr = ep_alloc(6);
|
|
tvb_memcpy(tvb, mac_addr, offset + IP6H_SRC + 8, 3);
|
|
tvb_memcpy(tvb, mac_addr+3, offset+ IP6H_SRC + 13, 3);
|
|
mac_addr[0] &= ~0x02;
|
|
ti = proto_tree_add_ether(ipv6_tree, hf_ipv6_src_sa_mac, tvb,
|
|
offset + IP6H_SRC + 8, 6, mac_addr);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_ether(ipv6_tree, hf_ipv6_sa_mac, tvb,
|
|
offset + IP6H_SRC + 8, 6, mac_addr);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
} else if ((tvb_get_ntohl(tvb, offset + IP6H_SRC + 8) & 0xfcffffff) == 0x00005efe) { /* RFC 5214 section 6.1 */
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_src_isatap_ipv4, tvb,
|
|
offset + IP6H_SRC + 12, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_isatap_ipv4, tvb,
|
|
offset + IP6H_SRC + 12, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
}
|
|
|
|
/* Add different items for the destination address */
|
|
proto_tree_add_item(ipv6_tree, hf_ipv6_dst, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_dst), 16, ENC_NA);
|
|
ti = proto_tree_add_ipv6(ipv6_tree, hf_ipv6_addr, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_dst),
|
|
16, (guint8 *)&ipv6.ip6_dst);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
name = get_addr_name(&pinfo->dst);
|
|
if (ipv6_summary_in_tree) {
|
|
proto_item_append_text(ipv6_item, ", Dst: %s (%s)", name, ip6_to_str(&ipv6.ip6_dst));
|
|
}
|
|
ti = proto_tree_add_string(ipv6_tree, hf_ipv6_dst_host, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_dst),
|
|
16, name);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
ti = proto_tree_add_string(ipv6_tree, hf_ipv6_host, tvb,
|
|
offset + (int)offsetof(struct ip6_hdr, ip6_dst),
|
|
16, name);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
|
|
/* Extract embedded (IPv6 and MAC) address information */
|
|
if (tvb_get_ntohs(tvb, offset + IP6H_DST) == 0x2002) { /* RFC 3056 section 2 */
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_dst_6to4_gateway_ipv4, tvb,
|
|
offset + IP6H_DST + 2, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_dst_6to4_sla_id, tvb,
|
|
offset + IP6H_DST + 6, 2, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_6to4_gateway_ipv4, tvb,
|
|
offset + IP6H_DST + 2, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_6to4_sla_id, tvb,
|
|
offset + IP6H_DST + 6, 2, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
} else if (tvb_get_ntohl(tvb, offset + IP6H_DST) == 0x20010000) { /* RFC 4380 section 4 */
|
|
guint16 mapped_port = tvb_get_ntohs(tvb, offset + IP6H_DST + 10) ^ 0xffff;
|
|
guint32 client_v4 = tvb_get_ipv4(tvb, offset + IP6H_DST + 12) ^ 0xffffffff;
|
|
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_dst_teredo_server_ipv4, tvb,
|
|
offset + IP6H_DST + 4, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_uint(ipv6_tree, hf_ipv6_dst_teredo_port, tvb,
|
|
offset + IP6H_DST + 10, 2, mapped_port);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_ipv4(ipv6_tree, hf_ipv6_dst_teredo_client_ipv4, tvb,
|
|
offset + IP6H_DST + 12, 4, client_v4);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_teredo_server_ipv4, tvb,
|
|
offset + IP6H_DST + 4, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
ti = proto_tree_add_uint(ipv6_tree, hf_ipv6_teredo_port, tvb,
|
|
offset + IP6H_DST + 10, 2, mapped_port);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
ti = proto_tree_add_ipv4(ipv6_tree, hf_ipv6_teredo_client_ipv4, tvb,
|
|
offset + IP6H_DST + 12, 4, client_v4);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
}
|
|
|
|
if (tvb_get_guint8(tvb, offset + IP6H_DST + 8) & 0x02 && tvb_get_ntohs(tvb, offset + IP6H_DST + 11) == 0xfffe) { /* RFC 4291 appendix A */
|
|
mac_addr = ep_alloc(6);
|
|
tvb_memcpy(tvb, mac_addr, offset + IP6H_DST + 8, 3);
|
|
tvb_memcpy(tvb, mac_addr+3, offset+ IP6H_DST + 13, 3);
|
|
mac_addr[0] &= ~0x02;
|
|
ti = proto_tree_add_ether(ipv6_tree, hf_ipv6_dst_sa_mac, tvb,
|
|
offset + IP6H_DST + 8, 6, mac_addr);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_ether(ipv6_tree, hf_ipv6_sa_mac, tvb,
|
|
offset + IP6H_DST + 8, 6, mac_addr);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
} else if ((tvb_get_ntohl(tvb, offset + IP6H_DST + 8) & 0xfcffffff) == 0x00005efe) { /* RFC 5214 section 6.1 */
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_dst_isatap_ipv4, tvb,
|
|
offset + IP6H_DST + 12, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
ti = proto_tree_add_item(ipv6_tree, hf_ipv6_isatap_ipv4, tvb,
|
|
offset + IP6H_DST + 12, 4, ENC_BIG_ENDIAN);
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_GEOIP_V6
|
|
if (tree && ipv6_use_geoip) {
|
|
add_geoip_info(ipv6_tree, tvb, offset, &ipv6.ip6_src, &ipv6.ip6_dst);
|
|
}
|
|
#endif
|
|
|
|
/* start of the new header (could be a extension header) */
|
|
nxt = tvb_get_guint8(tvb, offset + 6);
|
|
offset += (int)sizeof(struct ip6_hdr);
|
|
offlg = 0;
|
|
ident = 0;
|
|
|
|
/* start out assuming this isn't fragmented, and has none of the other
|
|
non-final headers */
|
|
hopopts = FALSE;
|
|
routing = FALSE;
|
|
ah = FALSE;
|
|
shim6 = FALSE;
|
|
dstopts = FALSE;
|
|
|
|
again:
|
|
switch (nxt) {
|
|
|
|
case IP_PROTO_HOPOPTS:
|
|
hopopts = TRUE;
|
|
advance = dissect_hopopts(tvb, offset, ipv6_tree, pinfo);
|
|
nxt = tvb_get_guint8(tvb, offset);
|
|
offset += advance;
|
|
plen -= advance;
|
|
goto again;
|
|
|
|
case IP_PROTO_ROUTING:
|
|
routing = TRUE;
|
|
advance = dissect_routing6(tvb, offset, ipv6_tree, pinfo);
|
|
nxt = tvb_get_guint8(tvb, offset);
|
|
offset += advance;
|
|
plen -= advance;
|
|
goto again;
|
|
|
|
case IP_PROTO_FRAGMENT:
|
|
advance = dissect_frag6(tvb, offset, pinfo, ipv6_tree,
|
|
&offlg, &ident);
|
|
nxt = tvb_get_guint8(tvb, offset);
|
|
offset += advance;
|
|
plen -= advance;
|
|
frag = offlg & (IP6F_OFF_MASK | IP6F_MORE_FRAG);
|
|
save_fragmented |= frag;
|
|
if (ipv6_reassemble && frag && tvb_bytes_exist(tvb, offset, plen)) {
|
|
ipfd_head = fragment_add_check(tvb, offset, pinfo, ident,
|
|
ipv6_fragment_table,
|
|
ipv6_reassembled_table,
|
|
offlg & IP6F_OFF_MASK,
|
|
plen,
|
|
offlg & IP6F_MORE_FRAG);
|
|
next_tvb = process_reassembled_data(tvb, offset, pinfo, "Reassembled IPv6",
|
|
ipfd_head, &ipv6_frag_items, &update_col_info, ipv6_tree);
|
|
if (next_tvb) { /* Process post-fragment headers after reassembly... */
|
|
offset= 0;
|
|
offlg = 0;
|
|
tvb = next_tvb;
|
|
goto again;
|
|
}
|
|
}
|
|
if (!(offlg & IP6F_OFF_MASK)) /*...or in the first fragment */
|
|
goto again;
|
|
break;
|
|
|
|
case IP_PROTO_AH:
|
|
ah = TRUE;
|
|
advance = dissect_ah_header(tvb_new_subset_remaining(tvb, offset),
|
|
pinfo, ipv6_tree, NULL, NULL);
|
|
nxt = tvb_get_guint8(tvb, offset);
|
|
offset += advance;
|
|
plen -= advance;
|
|
goto again;
|
|
|
|
case IP_PROTO_SHIM6:
|
|
case IP_PROTO_SHIM6_OLD:
|
|
shim6 = TRUE;
|
|
advance = dissect_shim6(tvb, offset, ipv6_tree, pinfo);
|
|
nxt = tvb_get_guint8(tvb, offset);
|
|
stype = tvb_get_guint8(tvb, offset+2);
|
|
offset += advance;
|
|
plen -= advance;
|
|
goto again;
|
|
|
|
case IP_PROTO_DSTOPTS:
|
|
dstopts = TRUE;
|
|
advance = dissect_dstopts(tvb, offset, ipv6_tree, pinfo);
|
|
nxt = tvb_get_guint8(tvb, offset);
|
|
offset += advance;
|
|
plen -= advance;
|
|
goto again;
|
|
|
|
case IP_PROTO_NONE:
|
|
break;
|
|
|
|
default:
|
|
/* Since we did not recognize this IPv6 option, check
|
|
* whether it is a known protocol. If not, then it
|
|
* is an unknown IPv6 option
|
|
*/
|
|
if (!dissector_get_uint_handle(ip_dissector_table, nxt)) {
|
|
advance = dissect_unknown_option(tvb, offset, ipv6_tree);
|
|
nxt = tvb_get_guint8(tvb, offset);
|
|
offset += advance;
|
|
plen -= advance;
|
|
goto again;
|
|
}
|
|
}
|
|
|
|
proto_item_set_len (ipv6_item, offset);
|
|
|
|
/* collect packet info */
|
|
pinfo->ipproto = nxt;
|
|
pinfo->iplen = (int)sizeof(ipv6) + plen + offset;
|
|
pinfo->iphdrlen = offset;
|
|
tap_queue_packet(ipv6_tap, pinfo, &ipv6);
|
|
|
|
if (offlg & IP6F_OFF_MASK || (ipv6_reassemble && offlg & IP6F_MORE_FRAG)) {
|
|
/* Not the first fragment, or the first when we are reassembling and there are more. */
|
|
/* Don't dissect it; just show this as a fragment. */
|
|
/* COL_INFO was filled in by "dissect_frag6()" */
|
|
call_dissector(data_handle, tvb_new_subset_remaining(tvb, offset), pinfo, tree);
|
|
return;
|
|
} else {
|
|
/* First fragment, not fragmented, or already reassembled. Dissect what we have here. */
|
|
|
|
/* Get a tvbuff for the payload. */
|
|
next_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
|
|
/*
|
|
* If this is the first fragment, but not the only fragment,
|
|
* tell the next protocol that.
|
|
*/
|
|
if (offlg & IP6F_MORE_FRAG)
|
|
pinfo->fragmented = TRUE;
|
|
else
|
|
pinfo->fragmented = FALSE;
|
|
}
|
|
|
|
|
|
/* do lookup with the subdissector table */
|
|
if (!dissector_try_uint(ip_dissector_table, nxt, next_tvb, pinfo, tree)) {
|
|
/* Unknown protocol.
|
|
Handle "no next header" specially. */
|
|
if (nxt == IP_PROTO_NONE) {
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
/* If we had an Authentication Header, the AH dissector already
|
|
put something in the Info column; leave it there. */
|
|
if (!ah) {
|
|
if (hopopts || routing || dstopts || shim6) {
|
|
if (hopopts) {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "%shop-by-hop options",
|
|
sep);
|
|
sep = ", ";
|
|
}
|
|
if (routing) {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "%srouting", sep);
|
|
sep = ", ";
|
|
}
|
|
if (dstopts) {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "%sdestination options",
|
|
sep);
|
|
}
|
|
if (shim6) {
|
|
if (stype & SHIM6_BITMASK_P) {
|
|
col_append_str(pinfo->cinfo, COL_INFO, "Shim6 (Payload)");
|
|
}
|
|
else {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "Shim6 (%s)",
|
|
val_to_str_const(stype & SHIM6_BITMASK_TYPE, shimctrlvals, "Unknown"));
|
|
}
|
|
}
|
|
} else
|
|
col_set_str(pinfo->cinfo, COL_INFO, "IPv6 no next header");
|
|
}
|
|
}
|
|
} else {
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "%s (%u)", ipprotostr(nxt), nxt);
|
|
}
|
|
call_dissector(data_handle, next_tvb, pinfo, tree);
|
|
}
|
|
pinfo->fragmented = save_fragmented;
|
|
}
|
|
|
|
void
|
|
proto_register_ipv6(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_ipv6_version,
|
|
{ "Version", "ipv6.version",
|
|
FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL }},
|
|
{ &hf_ip_version,
|
|
{ "This field makes the filter \"ip.version == 6\" possible", "ip.version",
|
|
FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL }},
|
|
{ &hf_ipv6_class,
|
|
{ "Traffic class", "ipv6.class",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0FF00000, NULL, HFILL }},
|
|
{ &hf_ipv6_flow,
|
|
{ "Flowlabel", "ipv6.flow",
|
|
FT_UINT32, BASE_HEX, NULL, 0x000FFFFF, NULL, HFILL }},
|
|
{ &hf_ipv6_plen,
|
|
{ "Payload length", "ipv6.plen",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_ipv6_nxt,
|
|
{ "Next header", "ipv6.nxt",
|
|
FT_UINT8, BASE_DEC | BASE_EXT_STRING, &ipproto_val_ext, 0x0, NULL, HFILL }},
|
|
{ &hf_ipv6_hlim,
|
|
{ "Hop limit", "ipv6.hlim",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_ipv6_src,
|
|
{ "Source", "ipv6.src",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
"Source IPv6 Address", HFILL }},
|
|
{ &hf_ipv6_src_host,
|
|
{ "Source Host", "ipv6.src_host",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Source IPv6 Host", HFILL }},
|
|
{ &hf_ipv6_src_sa_mac,
|
|
{ "Source SA MAC", "ipv6.src_sa_mac",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
"Source IPv6 Stateless Autoconfiguration MAC Address", HFILL }},
|
|
{ &hf_ipv6_src_isatap_ipv4,
|
|
{ "Source ISATAP IPv4", "ipv6.src_isatap_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"Source IPv6 ISATAP Encapsulated IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_src_6to4_gateway_ipv4,
|
|
{ "Source 6to4 Gateway IPv4", "ipv6.src_6to4_gw_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"Source IPv6 6to4 Gateway IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_src_6to4_sla_id,
|
|
{ "Source 6to4 SLA ID", "ipv6.src_6to4_sla_id",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Source IPv6 6to4 SLA ID", HFILL }},
|
|
{ &hf_ipv6_src_teredo_server_ipv4,
|
|
{ "Source Teredo Server IPv4", "ipv6.src_ts_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"Source IPv6 Teredo Server Encapsulated IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_src_teredo_port,
|
|
{ "Source Teredo Port", "ipv6.src_tc_port",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Source IPv6 Teredo Client Mapped Port", HFILL }},
|
|
{ &hf_ipv6_src_teredo_client_ipv4,
|
|
{ "Source Teredo Client IPv4", "ipv6.src_tc_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"Source IPv6 Teredo Client Encapsulated IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_dst,
|
|
{ "Destination", "ipv6.dst",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
"Destination IPv6 Address", HFILL }},
|
|
{ &hf_ipv6_dst_host,
|
|
{ "Destination Host", "ipv6.dst_host",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Destination IPv6 Host", HFILL }},
|
|
{ &hf_ipv6_dst_sa_mac,
|
|
{ "Destination SA MAC", "ipv6.dst_sa_mac",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
"Destination IPv6 Stateless Autoconfiguration MAC Address", HFILL }},
|
|
{ &hf_ipv6_dst_isatap_ipv4,
|
|
{ "Destination ISATAP IPv4", "ipv6.dst_isatap_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"Destination IPv6 ISATAP Encapsulated IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_dst_6to4_gateway_ipv4,
|
|
{ "Destination 6to4 Gateway IPv4", "ipv6.dst_6to4_gw_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"Destination IPv6 6to4 Gateway IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_dst_6to4_sla_id,
|
|
{ "Destination 6to4 SLA ID", "ipv6.dst_6to4_sla_id",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Destination IPv6 6to4 SLA ID", HFILL }},
|
|
{ &hf_ipv6_dst_teredo_server_ipv4,
|
|
{ "Destination Teredo Server IPv4", "ipv6.dst_ts_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"Destination IPv6 Teredo Server Encapsulated IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_dst_teredo_port,
|
|
{ "Destination Teredo Port", "ipv6.dst_tc_port",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Destination IPv6 Teredo Client Mapped Port", HFILL }},
|
|
{ &hf_ipv6_dst_teredo_client_ipv4,
|
|
{ "Destination Teredo Client IPv4", "ipv6.dst_tc_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"Destination IPv6 Teredo Client Encapsulated IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_addr,
|
|
{ "Source or Destination Address", "ipv6.addr",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_host,
|
|
{ "Source or Destination Host", "ipv6.host",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_sa_mac,
|
|
{ "SA MAC", "ipv6.sa_mac",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
"IPv6 Stateless Autoconfiguration MAC Address", HFILL }},
|
|
{ &hf_ipv6_isatap_ipv4,
|
|
{ "ISATAP IPv4", "ipv6.isatap_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"IPv6 ISATAP Encapsulated IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_6to4_gateway_ipv4,
|
|
{ "6to4 Gateway IPv4", "ipv6.6to4_gw_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"IPv6 6to4 Gateway IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_6to4_sla_id,
|
|
{ "6to4 SLA ID", "ipv6.6to4_sla_id",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"IPv6 6to4 SLA ID", HFILL }},
|
|
{ &hf_ipv6_teredo_server_ipv4,
|
|
{ "Teredo Server IPv4", "ipv6.ts_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"IPv6 Teredo Server Encapsulated IPv4 Address", HFILL }},
|
|
{ &hf_ipv6_teredo_port,
|
|
{ "Teredo Port", "ipv6.tc_port",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"IPv6 Teredo Client Mapped Port", HFILL }},
|
|
{ &hf_ipv6_teredo_client_ipv4,
|
|
{ "Teredo Client IPv4", "ipv6.tc_ipv4",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
"IPv6 Teredo Client Encapsulated IPv4 Address", HFILL }},
|
|
#ifdef HAVE_GEOIP_V6
|
|
{ &hf_geoip_country,
|
|
{ "Source or Destination GeoIP Country", "ipv6.geoip.country",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_city,
|
|
{ "Source or Destination GeoIP City", "ipv6.geoip.city",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_org,
|
|
{ "Source or Destination GeoIP Organization", "ipv6.geoip.org",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_isp,
|
|
{ "Source or Destination GeoIP ISP", "ipv6.geoip.isp",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_asnum,
|
|
{ "Source or Destination GeoIP AS Number", "ipv6.geoip.asnum",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_lat,
|
|
{ "Source or Destination GeoIP Latitude", "ipv6.geoip.lat",
|
|
FT_DOUBLE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_lon,
|
|
{ "Source or Destination GeoIP Longitude", "ipv6.geoip.lon",
|
|
FT_DOUBLE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_src_country,
|
|
{ "Source GeoIP Country", "ipv6.geoip.src_country",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_src_city,
|
|
{ "Source GeoIP City", "ipv6.geoip.src_city",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_src_org,
|
|
{ "Source GeoIP Organization", "ipv6.geoip.src_org",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_src_isp,
|
|
{ "Source GeoIP ISP", "ipv6.geoip.src_isp",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_src_asnum,
|
|
{ "Source GeoIP AS Number", "ipv6.geoip.src_asnum",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_src_lat,
|
|
{ "Source GeoIP Latitude", "ipv6.geoip.src_lat",
|
|
FT_DOUBLE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_src_lon,
|
|
{ "Source GeoIP Longitude", "ipv6.geoip.src_lon",
|
|
FT_DOUBLE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_dst_country,
|
|
{ "Destination GeoIP Country", "ipv6.geoip.dst_country",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_dst_city,
|
|
{ "Destination GeoIP City", "ipv6.geoip.dst_city",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_dst_org,
|
|
{ "Destination GeoIP Organization", "ipv6.geoip.dst_org",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_dst_isp,
|
|
{ "Destination GeoIP ISP", "ipv6.geoip.dst_isp",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_dst_asnum,
|
|
{ "Destination GeoIP AS Number", "ipv6.geoip.dst_asnum",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_dst_lat,
|
|
{ "Destination GeoIP Latitude", "ipv6.geoip.dst_lat",
|
|
FT_DOUBLE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_geoip_dst_lon,
|
|
{ "Destination GeoIP Longitude", "ipv6.geoip.dst_lon",
|
|
FT_DOUBLE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
#endif /* HAVE_GEOIP_V6 */
|
|
|
|
|
|
{ &hf_ipv6_dst_opt,
|
|
{ "Destination Option", "ipv6.dst_opt",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_hop_opt,
|
|
{ "Hop-by-Hop Option", "ipv6.hop_opt",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_unk_hdr,
|
|
{ "Unknown Extension Header", "ipv6.unknown_hdr",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt,
|
|
{ "IPv6 Option", "ipv6.opt",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"Option", HFILL }},
|
|
{ &hf_ipv6_opt_type,
|
|
{ "Type", "ipv6.opt.type",
|
|
FT_UINT8, BASE_DEC, VALS(ipv6_opt_vals), 0x0,
|
|
"Options type", HFILL }},
|
|
{ &hf_ipv6_opt_length,
|
|
{ "Length", "ipv6.opt.length",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Length in units of 8 octets", HFILL }},
|
|
{ &hf_ipv6_opt_pad1,
|
|
{ "Pad1", "ipv6.opt.pad1",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"Pad1 Option", HFILL }},
|
|
{ &hf_ipv6_opt_padn,
|
|
{ "PadN", "ipv6.opt.padn",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"PadN Option", HFILL }},
|
|
{ &hf_ipv6_opt_rtalert,
|
|
{ "Router Alert", "ipv6.opt.router_alert",
|
|
FT_UINT16, BASE_DEC, VALS(rtalertvals), 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_tel,
|
|
{ "Tunnel Encapsulation Limit", "ipv6.opt.tel",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"How many further levels of encapsulation are permitted", HFILL }},
|
|
{ &hf_ipv6_opt_jumbo,
|
|
{ "Jumbo", "ipv6.opt.jumbo",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"Length of the IPv6 packet in octets", HFILL }},
|
|
{ &hf_ipv6_opt_calipso_doi,
|
|
{ "CALIPSO Domain of Interpretation","ipv6.opt.calipso.doi",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_calipso_cmpt_length,
|
|
{ "Compartment Length","ipv6.opt.calipso.cmpt.length",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_calipso_sens_level,
|
|
{ "Sensitivity Level","ipv6.opt.calipso.sens_level",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_calipso_checksum,
|
|
{ "Checksum","ipv6.opt.calipso.checksum",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_calipso_cmpt_bitmap,
|
|
{ "Compartment Bitmap","ipv6.opt.calipso.cmpt_bitmap",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_qs_func,
|
|
{ "Function", "ipv6.opt.qs_func",
|
|
FT_UINT8, BASE_DEC, VALS(qs_func_vals), QS_FUNC_MASK,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_qs_rate,
|
|
{ "Rate", "ipv6.opt.qs_rate",
|
|
FT_UINT8, BASE_DEC | BASE_EXT_STRING, &qs_rate_vals_ext, QS_RATE_MASK,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_qs_ttl,
|
|
{ "QS TTL", "ipv6.opt.qs_ttl",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_qs_ttl_diff,
|
|
{ "TTL Diff", "ipv6.opt.qs_ttl_diff",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_qs_unused,
|
|
{ "Not Used", "ipv6.opt.qs_unused",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_qs_nonce,
|
|
{ "QS Nonce", "ipv6.opt.qs_nonce",
|
|
FT_UINT32, BASE_HEX, NULL, 0xFFFFFFFC,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_qs_reserved,
|
|
{ "Reserved", "ipv6.opt.qs_reserved",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0003,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_rpl_flag,
|
|
{ "Flag", "ipv6.opt.rpl.flag",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_rpl_flag_o,
|
|
{ "Down", "ipv6.opt.rpl.flag.o",
|
|
FT_BOOLEAN, 8, NULL, 0x80,
|
|
"The packet is expected to progress Up or Down", HFILL }},
|
|
{ &hf_ipv6_opt_rpl_flag_r,
|
|
{ "Rank Error", "ipv6.opt.rpl.flag.r",
|
|
FT_BOOLEAN, 8, NULL, 0x40,
|
|
"Indicating whether a rank error was detected", HFILL }},
|
|
{ &hf_ipv6_opt_rpl_flag_f,
|
|
{ "Forwarding Error", "ipv6.opt.rpl.flag.f",
|
|
FT_BOOLEAN, 8, NULL, 0x20,
|
|
"Indicating that this node can not forward the packet further towards the destination", HFILL }},
|
|
{ &hf_ipv6_opt_rpl_flag_rsv,
|
|
{ "Reserved", "ipv6.opt.rpl.flag.rsv",
|
|
FT_UINT8, BASE_HEX, NULL, 0x1F,
|
|
"Reserved (Must Be Zero)", HFILL }},
|
|
{ &hf_ipv6_opt_rpl_instance_id,
|
|
{ "RPLInstanceID", "ipv6.opt.rpl.instance_id",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
"Indicating the DODAG instance along which the packet is sent", HFILL }},
|
|
{ &hf_ipv6_opt_rpl_senderrank,
|
|
{ "Sender Rank", "ipv6.opt.rpl.sender_rank",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
"Set to zero by the source and to DAGRank(rank) by a router that forwards inside the RPL network", HFILL }},
|
|
{ &hf_ipv6_opt_experimental,
|
|
{ "Experimental Option","ipv6.opt.experimental",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_opt_unknown,
|
|
{ "Unknown Option Payload","ipv6.opt.unknown",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_routing_hdr_opt,
|
|
{ "Routing Header, Type","ipv6.routing_hdr",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Routing Header Option", HFILL }},
|
|
{ &hf_ipv6_routing_hdr_type,
|
|
{ "Type", "ipv6.routing_hdr.type",
|
|
FT_UINT8, BASE_DEC, VALS(routing_header_type), 0x0,
|
|
"Routing Header Type", HFILL }},
|
|
{ &hf_ipv6_routing_hdr_left,
|
|
{ "Segments Left", "ipv6.routing_hdr.left",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Routing Header Segments Left", HFILL }},
|
|
{ &hf_ipv6_routing_hdr_addr,
|
|
{ "Address", "ipv6.routing_hdr.addr",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
"Routing Header Address", HFILL }},
|
|
{ &hf_ipv6_frag_nxt,
|
|
{ "Next header", "ipv6.fragment.nxt",
|
|
FT_UINT16, BASE_DEC | BASE_EXT_STRING, &ipproto_val_ext, 0x0,
|
|
"Fragment next header", HFILL }},
|
|
{ &hf_ipv6_frag_reserved,
|
|
{ "Reserved octet", "ipv6.fragment.reserved_octet",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
"Should always be 0", HFILL }},
|
|
{ &hf_ipv6_frag_offset,
|
|
{ "Offset", "ipv6.fragment.offset",
|
|
FT_UINT16, BASE_DEC_HEX, NULL, IP6F_OFF_MASK,
|
|
"Fragment Offset", HFILL }},
|
|
{ &hf_ipv6_frag_reserved_bits,
|
|
{ "Reserved bits", "ipv6.fragment.reserved_bits",
|
|
FT_UINT16, BASE_DEC_HEX, NULL, IP6F_RESERVED_MASK,
|
|
NULL, HFILL }},
|
|
{ &hf_ipv6_frag_more,
|
|
{ "More Fragment", "ipv6.fragment.more",
|
|
FT_BOOLEAN, 16, TFS(&tfs_yes_no), IP6F_MORE_FRAG,
|
|
"More Fragments", HFILL }},
|
|
{ &hf_ipv6_frag_id,
|
|
{ "Identification", "ipv6.fragment.id",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
"Fragment Identification", HFILL }},
|
|
{ &hf_ipv6_fragment_overlap,
|
|
{ "Fragment overlap", "ipv6.fragment.overlap",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"Fragment overlaps with other fragments", HFILL }},
|
|
|
|
{ &hf_ipv6_fragment_overlap_conflict,
|
|
{ "Conflicting data in fragment overlap", "ipv6.fragment.overlap.conflict",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"Overlapping fragments contained conflicting data", HFILL }},
|
|
|
|
{ &hf_ipv6_fragment_multiple_tails,
|
|
{ "Multiple tail fragments found", "ipv6.fragment.multipletails",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"Several tails were found when defragmenting the packet", HFILL }},
|
|
|
|
{ &hf_ipv6_fragment_too_long_fragment,
|
|
{ "Fragment too long", "ipv6.fragment.toolongfragment",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"Fragment contained data past end of packet", HFILL }},
|
|
|
|
{ &hf_ipv6_fragment_error,
|
|
{ "Defragmentation error", "ipv6.fragment.error",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
|
"Defragmentation error due to illegal fragments", HFILL }},
|
|
|
|
{ &hf_ipv6_fragment_count,
|
|
{ "Fragment count", "ipv6.fragment.count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_fragment,
|
|
{ "IPv6 Fragment", "ipv6.fragment",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_fragments,
|
|
{ "IPv6 Fragments", "ipv6.fragments",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_reassembled_in,
|
|
{ "Reassembled IPv6 in frame", "ipv6.reassembled_in",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
|
"This IPv6 packet is reassembled in this frame", HFILL }},
|
|
|
|
{ &hf_ipv6_reassembled_length,
|
|
{ "Reassembled IPv6 length", "ipv6.reassembled.length",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"The total length of the reassembled payload", HFILL }},
|
|
|
|
{ &hf_ipv6_reassembled_data,
|
|
{ "Reassembled IPv6 data", "ipv6.reassembled.data",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"The reassembled payload", HFILL }},
|
|
/* RPL Routing Header */
|
|
{ &hf_ipv6_routing_hdr_rpl_cmprI,
|
|
{ "Compressed Internal Octets (CmprI)", "ipv6.routing_hdr.rpl.cmprI",
|
|
FT_UINT32, BASE_DEC, NULL, IP6RRPL_BITMASK_CMPRI,
|
|
"Elided octets from all but last segment", HFILL }},
|
|
|
|
{ &hf_ipv6_routing_hdr_rpl_cmprE,
|
|
{ "Compressed Final Octets (CmprE)", "ipv6.routing_hdr.rpl.cmprE",
|
|
FT_UINT32, BASE_DEC, NULL, IP6RRPL_BITMASK_CMPRE,
|
|
"Elided octets from last segment address", HFILL }},
|
|
|
|
{ &hf_ipv6_routing_hdr_rpl_pad,
|
|
{ "Padding Bytes", "ipv6.routing_hdr.rpl.pad",
|
|
FT_UINT32, BASE_DEC, NULL, IP6RRPL_BITMASK_PAD,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_routing_hdr_rpl_reserved,
|
|
{ "Reserved", "ipv6.routing_hdr.rpl.reserved",
|
|
FT_UINT32, BASE_DEC, NULL, IP6RRPL_BITMASK_RESERVED,
|
|
"Must be Zero", HFILL }},
|
|
|
|
{ &hf_ipv6_routing_hdr_rpl_segments,
|
|
{ "Total Segments", "ipv6.routing_hdr.rpl.segments",
|
|
FT_INT32, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_routing_hdr_rpl_addr,
|
|
{ "Address", "ipv6.routing_hdr.rpl.address",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_routing_hdr_rpl_fulladdr,
|
|
{ "Full Address", "ipv6.routing_hdr.rpl.full_address",
|
|
FT_IPv6, BASE_NONE, NULL, 0,
|
|
"Uncompressed IPv6 Address", HFILL }},
|
|
|
|
/* Mobile IPv6 */
|
|
{ &hf_ipv6_mipv6_home_address,
|
|
{ "Home Address", "ipv6.mipv6_home_address",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
/* SHIM6 */
|
|
{ &hf_ipv6_shim6,
|
|
{ "SHIM6", "ipv6.shim6",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_nxt,
|
|
{ "Next Header", "ipv6.shim6.nxt",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_len,
|
|
{ "Header Ext Length", "ipv6.shim6.len",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_p,
|
|
{ "P Bit", "ipv6.shim6.p",
|
|
FT_BOOLEAN, 8, NULL, SHIM6_BITMASK_P,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_ct,
|
|
{ "Context Tag", "ipv6.shim6.ct",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_type,
|
|
{ "Message Type", "ipv6.shim6.type",
|
|
FT_UINT8, BASE_DEC,
|
|
VALS(shimctrlvals), SHIM6_BITMASK_TYPE,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_proto,
|
|
{ "Protocol", "ipv6.shim6.proto",
|
|
FT_UINT8, BASE_DEC,
|
|
VALS(shim6_protocol), SHIM6_BITMASK_PROTOCOL,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_checksum,
|
|
{ "Checksum", "ipv6.shim6.checksum",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
"Shim6 Checksum", HFILL }},
|
|
{ &hf_ipv6_shim6_checksum_bad,
|
|
{ "Bad Checksum", "ipv6.shim6.checksum_bad",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"Shim6 Bad Checksum", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_checksum_good,
|
|
{ "Good Checksum", "ipv6.shim6.checksum_good",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_inonce,
|
|
{ "Initiator Nonce", "ipv6.shim6.inonce",
|
|
FT_UINT32, BASE_DEC_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_rnonce,
|
|
{ "Responder Nonce", "ipv6.shim6.rnonce",
|
|
FT_UINT32, BASE_DEC_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_precvd,
|
|
{ "Probes Received", "ipv6.shim6.precvd",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_psent,
|
|
{ "Probes Sent", "ipv6.shim6.psent",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_psrc,
|
|
{ "Source Address", "ipv6.shim6.psrc",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
"Shim6 Probe Source Address", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_pdst,
|
|
{ "Destination Address", "ipv6.shim6.pdst",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
"Shim6 Probe Destination Address", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_pnonce,
|
|
{ "Nonce", "ipv6.shim6.pnonce",
|
|
FT_UINT32, BASE_DEC_HEX, NULL, 0x0,
|
|
"Shim6 Probe Nonce", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_pdata,
|
|
{ "Data", "ipv6.shim6.pdata",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
"Shim6 Probe Data", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_sulid,
|
|
{ "Sender ULID", "ipv6.shim6.sulid",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
"Shim6 Sender ULID", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_rulid,
|
|
{ "Receiver ULID", "ipv6.shim6.rulid",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
"Shim6 Receiver ULID", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_reap,
|
|
{ "REAP State", "ipv6.shim6.reap",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_opt_type,
|
|
{ "Option Type", "ipv6.shim6.opt.type",
|
|
FT_UINT16, BASE_DEC,
|
|
VALS(shimoptvals), SHIM6_BITMASK_OPT_TYPE,
|
|
"Shim6 Option Type", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_opt_critical,
|
|
{ "Option Critical Bit", "ipv6.shim6.opt.critical",
|
|
FT_BOOLEAN, 8,
|
|
TFS(&tfs_yes_no),
|
|
SHIM6_BITMASK_CRITICAL,
|
|
"TRUE : option is critical, FALSE: option is not critical",
|
|
HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_opt_len,
|
|
{ "Content Length", "ipv6.shim6.opt.len",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Content Length Option", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_opt_total_len,
|
|
{ "Total Length", "ipv6.shim6.opt.total_len",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Total Option Length", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_opt_loc_verif_methods,
|
|
{ "Verification Method", "ipv6.shim6.opt.verif_method",
|
|
FT_UINT8, BASE_DEC,
|
|
VALS(shimverifmethods), 0x0,
|
|
"Locator Verification Method", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_opt_loclist,
|
|
{ "Locator List Generation", "ipv6.shim6.opt.loclist",
|
|
FT_UINT32, BASE_DEC_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_locator,
|
|
{ "Locator", "ipv6.shim6.locator",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0,
|
|
"Shim6 Locator", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_opt_locnum,
|
|
{ "Num Locators", "ipv6.shim6.opt.locnum",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Number of Locators in Locator List", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_opt_elemlen,
|
|
{ "Element Length", "ipv6.shim6.opt.elemlen",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Length of Elements in Locator Preferences Option", HFILL }},
|
|
{ &hf_ipv6_shim6_loc_flag,
|
|
{ "Flags", "ipv6.shim6.loc.flags",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Locator Preferences Flags", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_loc_prio,
|
|
{ "Priority", "ipv6.shim6.loc.prio",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Locator Preferences Priority", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_loc_weight,
|
|
{ "Weight", "ipv6.shim6.loc.weight",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Locator Preferences Weight", HFILL }},
|
|
|
|
{ &hf_ipv6_shim6_opt_fii,
|
|
{ "Forked Instance Identifier", "ipv6.shim6.opt.fii",
|
|
FT_UINT32, BASE_DEC_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_traffic_class_dscp,
|
|
{ "Differentiated Services Field", "ipv6.traffic_class.dscp",
|
|
FT_UINT32, BASE_HEX | BASE_EXT_STRING, &dscp_vals_ext, 0x0FC00000, NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_traffic_class_ect,
|
|
{ "ECN-Capable Transport (ECT)", "ipv6.traffic_class.ect",
|
|
FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x0200000, NULL, HFILL }},
|
|
|
|
{ &hf_ipv6_traffic_class_ce,
|
|
{ "ECN-CE", "ipv6.traffic_class.ce",
|
|
FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x0100000, NULL, HFILL }},
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_ipv6,
|
|
&ett_ipv6_opt,
|
|
&ett_ipv6_opt_flag,
|
|
&ett_ipv6_version,
|
|
&ett_ipv6_shim6,
|
|
&ett_ipv6_shim6_option,
|
|
&ett_ipv6_shim6_locators,
|
|
&ett_ipv6_shim6_verif_methods,
|
|
&ett_ipv6_shim6_loc_pref,
|
|
&ett_ipv6_shim6_probes_sent,
|
|
&ett_ipv6_shim6_probes_rcvd,
|
|
&ett_ipv6_shim6_probe_sent,
|
|
&ett_ipv6_shim6_probe_rcvd,
|
|
&ett_ipv6_shim6_cksum,
|
|
&ett_ipv6_fragments,
|
|
&ett_ipv6_fragment,
|
|
&ett_ipv6_traffic_class,
|
|
#ifdef HAVE_GEOIP_V6
|
|
&ett_geoip_info
|
|
#endif /* HAVE_GEOIP_V6 */
|
|
};
|
|
module_t *ipv6_module;
|
|
|
|
proto_ipv6 = proto_register_protocol("Internet Protocol Version 6", "IPv6", "ipv6");
|
|
proto_register_field_array(proto_ipv6, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
/* Register configuration options */
|
|
ipv6_module = prefs_register_protocol(proto_ipv6, NULL);
|
|
prefs_register_bool_preference(ipv6_module, "defragment",
|
|
"Reassemble fragmented IPv6 datagrams",
|
|
"Whether fragmented IPv6 datagrams should be reassembled",
|
|
&ipv6_reassemble);
|
|
prefs_register_bool_preference(ipv6_module, "summary_in_tree",
|
|
"Show IPv6 summary in protocol tree",
|
|
"Whether the IPv6 summary line should be shown in the protocol tree",
|
|
&ipv6_summary_in_tree);
|
|
#ifdef HAVE_GEOIP_V6
|
|
prefs_register_bool_preference(ipv6_module, "use_geoip" ,
|
|
"Enable GeoIP lookups",
|
|
"Whether to look up IPv6 addresses in each GeoIP database we have loaded",
|
|
&ipv6_use_geoip);
|
|
#endif /* HAVE_GEOIP_V6 */
|
|
|
|
/* RPL Strict Header Checking */
|
|
prefs_register_bool_preference(ipv6_module, "perform_strict_rpl_srh_rfc_checking",
|
|
"Perform strict checking for adherence to the RFC for RPL Source Routing Headers (RFC 6554)",
|
|
"Whether to check that all RPL Source Routing Headers adhere to RFC 6554",
|
|
&g_ipv6_rpl_srh_strict_rfc_checking);
|
|
|
|
register_dissector("ipv6", dissect_ipv6, proto_ipv6);
|
|
register_init_routine(ipv6_reassemble_init);
|
|
ipv6_tap = register_tap("ipv6");
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_ipv6(void)
|
|
{
|
|
dissector_handle_t ipv6_handle;
|
|
|
|
data_handle = find_dissector("data");
|
|
ipv6_handle = find_dissector("ipv6");
|
|
dissector_add_uint("ethertype", ETHERTYPE_IPv6, ipv6_handle);
|
|
dissector_add_uint("ppp.protocol", PPP_IPV6, ipv6_handle);
|
|
dissector_add_uint("ppp.protocol", ETHERTYPE_IPv6, ipv6_handle);
|
|
dissector_add_uint("gre.proto", ETHERTYPE_IPv6, ipv6_handle);
|
|
dissector_add_uint("ip.proto", IP_PROTO_IPV6, ipv6_handle);
|
|
dissector_add_uint("null.type", BSD_AF_INET6_BSD, ipv6_handle);
|
|
dissector_add_uint("null.type", BSD_AF_INET6_FREEBSD, ipv6_handle);
|
|
dissector_add_uint("null.type", BSD_AF_INET6_DARWIN, ipv6_handle);
|
|
dissector_add_uint("chdlctype", ETHERTYPE_IPv6, ipv6_handle);
|
|
dissector_add_uint("fr.ietf", NLPID_IP6, ipv6_handle);
|
|
dissector_add_uint("osinl.excl", NLPID_IP6, ipv6_handle);
|
|
dissector_add_uint("x.25.spi", NLPID_IP6, ipv6_handle);
|
|
dissector_add_uint("arcnet.protocol_id", ARCNET_PROTO_IPv6, ipv6_handle);
|
|
|
|
ip_dissector_table = find_dissector_table("ip.proto");
|
|
}
|
|
|
|
/*
|
|
* Editor modelines
|
|
*
|
|
* Local Variables:
|
|
* c-basic-offset: 2
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* ex: set shiftwidth=2 tabstop=8 expandtab:
|
|
* :indentSize=2:tabSize=8:noTabs=true:
|
|
*/
|