forked from osmocom/wireshark
1211 lines
40 KiB
C
1211 lines
40 KiB
C
/* packet-mip6.c
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*
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* $Id$
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*
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* Routines for Mobile IPv6 dissection (RFC 3775)
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* Copyright 2003 Oy L M Ericsson Ab <teemu.rinta-aho@ericsson.fi>
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*
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* FMIPv6 (RFC 4068) support added by Martin Andre <andre@clarinet.u-strasbg.fr>
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* Copyright 2006, Nicolas DICHTEL - 6WIND - <nicolas.dichtel@6wind.com>
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*
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* Modifications for NEMO packets (RFC 3963): Bruno Deniaud
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* (bdeniaud@irisa.fr, nono@chez.com) 12 Oct 2005
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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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* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <epan/packet.h>
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#include <epan/ipproto.h>
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#include <epan/ip_opts.h>
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#include "packet-mip6.h"
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#include "packet-ntp.h"
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/* Initialize the protocol and registered header fields */
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static int proto_mip6 = -1;
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int proto_nemo = -1;
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static int hf_mip6_proto = -1;
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static int hf_mip6_hlen = -1;
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static int hf_mip6_mhtype = -1;
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static int hf_mip6_reserved = -1;
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static int hf_mip6_csum = -1;
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static int hf_mip6_hoti_cookie = -1;
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static int hf_mip6_coti_cookie = -1;
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static int hf_mip6_hot_nindex = -1;
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static int hf_mip6_hot_cookie = -1;
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static int hf_mip6_hot_token = -1;
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static int hf_mip6_cot_nindex = -1;
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static int hf_mip6_cot_cookie = -1;
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static int hf_mip6_cot_token = -1;
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static int hf_mip6_bu_seqnr = -1;
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static int hf_mip6_bu_a_flag = -1;
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static int hf_mip6_bu_h_flag = -1;
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static int hf_mip6_bu_l_flag = -1;
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static int hf_mip6_bu_k_flag = -1;
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static int hf_mip6_bu_m_flag = -1;
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static int hf_nemo_bu_r_flag = -1;
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static int hf_proxy_bu_p_flag = -1;
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static int hf_mip6_bu_lifetime = -1;
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static int hf_mip6_ba_status = -1;
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static int hf_mip6_ba_k_flag = -1;
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static int hf_nemo_ba_r_flag = -1;
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static int hf_proxy_ba_p_flag = -1;
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static int hf_mip6_ba_seqnr = -1;
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static int hf_mip6_ba_lifetime = -1;
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static int hf_mip6_be_status = -1;
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static int hf_mip6_be_haddr = -1;
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static int hf_fmip6_fbu_seqnr = -1;
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static int hf_fmip6_fbu_a_flag = -1;
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static int hf_fmip6_fbu_h_flag = -1;
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static int hf_fmip6_fbu_l_flag = -1;
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static int hf_fmip6_fbu_k_flag = -1;
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static int hf_fmip6_fbu_lifetime = -1;
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static int hf_fmip6_fback_status = -1;
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static int hf_fmip6_fback_k_flag = -1;
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static int hf_fmip6_fback_seqnr = -1;
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static int hf_fmip6_fback_lifetime = -1;
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static int hf_mip6_bra_interval = -1;
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static int hf_mip6_acoa_acoa = -1;
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static int hf_nemo_mnp_mnp = -1;
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static int hf_nemo_mnp_pfl = -1;
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static int hf_mip6_ni_hni = -1;
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static int hf_mip6_ni_cni = -1;
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static int hf_mip6_bad_auth = -1;
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static int hf_fmip6_lla_optcode = -1;
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static int hf_mip6_mnid_subtype = -1;
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static int hf_pmip6_timestamp = -1;
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/* Initialize the subtree pointers */
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static gint ett_mip6 = -1;
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static gint ett_mip6_opt_padn = -1;
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static gint ett_mip6_opt_bra = -1;
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static gint ett_mip6_opt_acoa = -1;
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static gint ett_mip6_opt_ni = -1;
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static gint ett_mip6_opt_bad = -1;
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static gint ett_nemo_opt_mnp = -1;
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static gint ett_fmip6_opt_lla = -1;
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static gint ett_mip6_opt_mnid = -1;
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static gint ett_pmip6_opt_hnp = -1;
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static gint ett_pmip6_opt_ts = -1;
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/* Functions to dissect the mobility headers */
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static int
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dissect_mip6_brr(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
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{
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proto_tree *data_tree = NULL;
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proto_item *ti;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Binding Refresh Request");
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if (mip6_tree) {
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ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
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MIP6_BRR_LEN, "Binding Refresh Request");
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data_tree = proto_item_add_subtree(ti, ett_mip6);
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}
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return MIP6_DATA_OFF + MIP6_BRR_LEN;
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}
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static int
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dissect_mip6_hoti(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
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{
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proto_tree *data_tree = NULL;
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proto_item *ti;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Home Test Init");
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if (mip6_tree) {
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ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
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MIP6_HOTI_LEN, "Home Test Init");
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data_tree = proto_item_add_subtree(ti, ett_mip6);
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proto_tree_add_item(data_tree, hf_mip6_hoti_cookie, tvb,
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MIP6_HOTI_COOKIE_OFF, MIP6_HOTI_COOKIE_LEN, FALSE);
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}
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return MIP6_DATA_OFF + MIP6_HOTI_LEN;
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}
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static int
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dissect_mip6_coti(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
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{
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proto_tree *data_tree = NULL;
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proto_item *ti;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Care-of Test Init");
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if (mip6_tree) {
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ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
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MIP6_COTI_LEN, "Care-of Test Init");
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data_tree = proto_item_add_subtree(ti, ett_mip6);
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proto_tree_add_item(data_tree, hf_mip6_coti_cookie, tvb,
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MIP6_COTI_COOKIE_OFF, MIP6_COTI_COOKIE_LEN, FALSE);
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}
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return MIP6_DATA_OFF + MIP6_COTI_LEN;
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}
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static int
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dissect_mip6_hot(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
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{
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proto_tree *data_tree = NULL;
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proto_item *ti;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Home Test");
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if (mip6_tree) {
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ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
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MIP6_HOT_LEN, "Home Test");
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data_tree = proto_item_add_subtree(ti, ett_mip6);
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proto_tree_add_item(data_tree, hf_mip6_hot_nindex, tvb,
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MIP6_HOT_INDEX_OFF, MIP6_HOT_INDEX_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_hot_cookie, tvb,
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MIP6_HOT_COOKIE_OFF, MIP6_HOT_COOKIE_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_hot_token, tvb,
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MIP6_HOT_TOKEN_OFF, MIP6_HOT_TOKEN_LEN, FALSE);
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}
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return MIP6_DATA_OFF + MIP6_HOT_LEN;
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}
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static int
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dissect_mip6_cot(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
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{
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proto_tree *data_tree = NULL;
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proto_item *ti;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Care-of Test");
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if (mip6_tree) {
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ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
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MIP6_COT_LEN, "Care-of Test");
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data_tree = proto_item_add_subtree(ti, ett_mip6);
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proto_tree_add_item(data_tree, hf_mip6_cot_nindex, tvb,
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MIP6_COT_INDEX_OFF, MIP6_COT_INDEX_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_cot_cookie, tvb,
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MIP6_COT_COOKIE_OFF, MIP6_COT_COOKIE_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_hot_token, tvb,
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MIP6_COT_TOKEN_OFF, MIP6_COT_TOKEN_LEN, FALSE);
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}
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return MIP6_DATA_OFF + MIP6_COT_LEN;
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}
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static int
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dissect_mip6_bu(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
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{
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proto_tree *data_tree = NULL;
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proto_item *ti;
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int lifetime;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Binding Update");
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if (mip6_tree) {
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ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
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MIP6_BU_LEN, "Binding Update");
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data_tree = proto_item_add_subtree(ti, ett_mip6);
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proto_tree_add_item(data_tree, hf_mip6_bu_seqnr, tvb,
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MIP6_BU_SEQNR_OFF, MIP6_BU_SEQNR_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_bu_a_flag, tvb,
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MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_bu_h_flag, tvb,
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MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_bu_l_flag, tvb,
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MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_bu_k_flag, tvb,
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MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_bu_m_flag, tvb,
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MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_nemo_bu_r_flag, tvb,
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MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_proxy_bu_p_flag, tvb,
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MIP6_BU_FLAGS_OFF, MIP6_BU_FLAGS_LEN, FALSE);
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if ((tvb_get_guint8(tvb, MIP6_BU_FLAGS_OFF) & 0x0004 ) == 0x0004)
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proto_nemo = 1;
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lifetime = tvb_get_ntohs(tvb, MIP6_BU_LIFETIME_OFF);
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proto_tree_add_uint_format(data_tree, hf_mip6_bu_lifetime, tvb,
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MIP6_BU_LIFETIME_OFF,
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MIP6_BU_LIFETIME_LEN, lifetime,
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"Lifetime: %d (%ld seconds)",
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lifetime, (long)lifetime * 4);
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}
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return MIP6_DATA_OFF + MIP6_BU_LEN;
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}
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static int
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dissect_mip6_ba(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
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{
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proto_tree *data_tree = NULL;
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proto_item *ti;
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int lifetime;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Binding Acknowledgement");
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if (mip6_tree) {
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ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
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MIP6_BA_LEN, "Binding Acknowledgement");
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data_tree = proto_item_add_subtree(ti, ett_mip6);
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proto_tree_add_item(data_tree, hf_mip6_ba_status, tvb,
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MIP6_BA_STATUS_OFF, MIP6_BA_STATUS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_ba_k_flag, tvb,
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MIP6_BA_FLAGS_OFF, MIP6_BA_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_nemo_ba_r_flag, tvb,
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MIP6_BA_FLAGS_OFF, MIP6_BA_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_proxy_ba_p_flag, tvb,
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MIP6_BA_FLAGS_OFF, MIP6_BA_FLAGS_LEN, FALSE);
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if ((tvb_get_guint8(tvb, MIP6_BA_FLAGS_OFF) & 0x0040 ) == 0x0040)
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proto_nemo = 1;
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proto_tree_add_item(data_tree, hf_mip6_ba_seqnr, tvb,
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MIP6_BA_SEQNR_OFF, MIP6_BA_SEQNR_LEN, FALSE);
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lifetime = tvb_get_ntohs(tvb, MIP6_BA_LIFETIME_OFF);
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proto_tree_add_uint_format(data_tree, hf_mip6_ba_lifetime, tvb,
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MIP6_BA_LIFETIME_OFF,
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MIP6_BA_LIFETIME_LEN, lifetime,
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"Lifetime: %d (%ld seconds)",
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lifetime, (long)lifetime * 4);
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}
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return MIP6_DATA_OFF + MIP6_BA_LEN;
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}
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static int
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dissect_mip6_be(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
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{
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proto_tree *data_tree = NULL;
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proto_item *ti;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Binding Error");
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if (mip6_tree) {
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ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
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MIP6_BE_LEN, "Binding Error");
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data_tree = proto_item_add_subtree(ti, ett_mip6);
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proto_tree_add_item(data_tree, hf_mip6_be_status, tvb,
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MIP6_BE_STATUS_OFF, MIP6_BE_STATUS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_mip6_be_haddr, tvb,
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MIP6_BE_HOA_OFF, MIP6_BE_HOA_LEN, FALSE);
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}
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return MIP6_DATA_OFF + MIP6_BE_LEN;
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}
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static int
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dissect_mip6_unknown(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
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{
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proto_tree *data_tree = NULL;
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proto_item *ti;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Unknown MH Type");
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if (mip6_tree) {
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ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
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MIP6_DATA_OFF + 1, "Unknown MH Type");
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data_tree = proto_item_add_subtree(ti, ett_mip6);
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}
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return MIP6_DATA_OFF + 1;
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}
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static int
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dissect_fmip6_fbu(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
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{
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proto_tree *data_tree = NULL;
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proto_item *ti;
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int lifetime;
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Fast Binding Update");
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if (mip6_tree) {
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ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
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MIP6_BU_LEN, "Fast Binding Update");
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data_tree = proto_item_add_subtree(ti, ett_mip6);
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proto_tree_add_item(data_tree, hf_fmip6_fbu_seqnr, tvb,
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FMIP6_FBU_SEQNR_OFF, FMIP6_FBU_SEQNR_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_fmip6_fbu_a_flag, tvb,
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FMIP6_FBU_FLAGS_OFF, FMIP6_FBU_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_fmip6_fbu_h_flag, tvb,
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FMIP6_FBU_FLAGS_OFF, FMIP6_FBU_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_fmip6_fbu_l_flag, tvb,
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FMIP6_FBU_FLAGS_OFF, FMIP6_FBU_FLAGS_LEN, FALSE);
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proto_tree_add_item(data_tree, hf_fmip6_fbu_k_flag, tvb,
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FMIP6_FBU_FLAGS_OFF, FMIP6_FBU_FLAGS_LEN, FALSE);
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lifetime = tvb_get_ntohs(tvb, FMIP6_FBU_LIFETIME_OFF);
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proto_tree_add_uint_format(data_tree, hf_fmip6_fbu_lifetime, tvb,
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FMIP6_FBU_LIFETIME_OFF,
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FMIP6_FBU_LIFETIME_LEN, lifetime,
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"Lifetime: %d (%ld seconds)",
|
|
lifetime, (long)lifetime * 4);
|
|
}
|
|
|
|
return MIP6_DATA_OFF + FMIP6_FBU_LEN;
|
|
}
|
|
|
|
static int
|
|
dissect_fmip6_fback(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
|
|
{
|
|
proto_tree *data_tree = NULL;
|
|
proto_item *ti;
|
|
int lifetime;
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Fast Binding Acknowledgement");
|
|
|
|
if (mip6_tree) {
|
|
ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
|
|
FMIP6_FBACK_LEN, "Fast Binding Acknowledgement");
|
|
data_tree = proto_item_add_subtree(ti, ett_mip6);
|
|
|
|
proto_tree_add_item(data_tree, hf_fmip6_fback_status, tvb,
|
|
FMIP6_FBACK_STATUS_OFF, FMIP6_FBACK_STATUS_LEN, FALSE);
|
|
proto_tree_add_item(data_tree, hf_fmip6_fback_k_flag, tvb,
|
|
FMIP6_FBACK_FLAGS_OFF, FMIP6_FBACK_FLAGS_LEN, FALSE);
|
|
proto_tree_add_item(data_tree, hf_fmip6_fback_seqnr, tvb,
|
|
FMIP6_FBACK_SEQNR_OFF, FMIP6_FBACK_SEQNR_LEN, FALSE);
|
|
lifetime = tvb_get_ntohs(tvb, FMIP6_FBACK_LIFETIME_OFF);
|
|
proto_tree_add_uint_format(data_tree, hf_fmip6_fback_lifetime, tvb,
|
|
FMIP6_FBACK_LIFETIME_OFF,
|
|
FMIP6_FBACK_LIFETIME_LEN, lifetime,
|
|
"Lifetime: %d (%ld seconds)",
|
|
lifetime, (long)lifetime * 4);
|
|
}
|
|
|
|
return MIP6_DATA_OFF + FMIP6_FBACK_LEN;
|
|
}
|
|
|
|
static int
|
|
dissect_fmip6_fna(tvbuff_t *tvb, proto_tree *mip6_tree, packet_info *pinfo)
|
|
{
|
|
proto_tree *data_tree = NULL;
|
|
proto_item *ti;
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Fast Neighbor Advertisement");
|
|
|
|
if (mip6_tree) {
|
|
ti = proto_tree_add_text(mip6_tree, tvb, MIP6_DATA_OFF,
|
|
FMIP6_FNA_LEN, "Fast Neighbor Advertisement");
|
|
data_tree = proto_item_add_subtree(ti, ett_mip6);
|
|
}
|
|
|
|
return MIP6_DATA_OFF + FMIP6_FNA_LEN;
|
|
}
|
|
|
|
|
|
/* Functions to dissect the mobility options */
|
|
static void
|
|
dissect_mip6_opt_padn(const ip_tcp_opt *optp, tvbuff_t *tvb, int offset,
|
|
guint optlen, packet_info *pinfo _U_,
|
|
proto_tree *opt_tree)
|
|
{
|
|
proto_tree_add_text(opt_tree, tvb, offset, optlen,
|
|
"%s: %u bytes", optp->name, optlen);
|
|
}
|
|
|
|
static void
|
|
dissect_mip6_opt_bra(const ip_tcp_opt *optp _U_, tvbuff_t *tvb, int offset,
|
|
guint optlen, packet_info *pinfo _U_,
|
|
proto_tree *opt_tree)
|
|
{
|
|
int ri;
|
|
|
|
ri = tvb_get_ntohs(tvb, offset + MIP6_BRA_RI_OFF);
|
|
proto_tree_add_uint_format(opt_tree, hf_mip6_bra_interval, tvb,
|
|
offset, optlen,
|
|
ri, "Refresh interval: %d (%ld seconds)",
|
|
ri, (long)ri * 4);
|
|
}
|
|
|
|
static void
|
|
dissect_mip6_opt_acoa(const ip_tcp_opt *optp _U_, tvbuff_t *tvb, int offset,
|
|
guint optlen, packet_info *pinfo _U_,
|
|
proto_tree *opt_tree)
|
|
{
|
|
proto_tree_add_ipv6(opt_tree, hf_mip6_acoa_acoa, tvb, offset, optlen,
|
|
tvb_get_ptr(tvb, offset + MIP6_ACOA_ACOA_OFF, MIP6_ACOA_ACOA_LEN));
|
|
}
|
|
|
|
static void
|
|
dissect_nemo_opt_mnp(const ip_tcp_opt *optp _U_, tvbuff_t *tvb, int offset,
|
|
guint optlen, packet_info *pinfo _U_,
|
|
proto_tree *opt_tree)
|
|
{
|
|
proto_tree *field_tree = NULL;
|
|
proto_item *tf;
|
|
tf = proto_tree_add_text(opt_tree, tvb, offset, optlen, "%s", optp->name);
|
|
field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
|
|
proto_tree_add_item(field_tree, hf_nemo_mnp_pfl, tvb,
|
|
offset + NEMO_MNP_PL_OFF, 1, FALSE);
|
|
|
|
proto_tree_add_item(field_tree, hf_nemo_mnp_mnp, tvb,
|
|
offset + NEMO_MNP_MNP_OFF, NEMO_MNP_MNP_LEN, FALSE);
|
|
}
|
|
|
|
static void
|
|
dissect_mip6_opt_ni(const ip_tcp_opt *optp, tvbuff_t *tvb, int offset,
|
|
guint optlen, packet_info *pinfo _U_,
|
|
proto_tree *opt_tree)
|
|
{
|
|
proto_tree *field_tree = NULL;
|
|
proto_item *tf;
|
|
|
|
tf = proto_tree_add_text(opt_tree, tvb, offset, optlen, "%s", optp->name);
|
|
field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
|
|
|
|
proto_tree_add_item(field_tree, hf_mip6_ni_hni, tvb,
|
|
offset + MIP6_NI_HNI_OFF, MIP6_NI_HNI_LEN, FALSE);
|
|
proto_tree_add_item(field_tree, hf_mip6_ni_cni, tvb,
|
|
offset + MIP6_NI_CNI_OFF, MIP6_NI_CNI_LEN, FALSE);
|
|
}
|
|
|
|
static void
|
|
dissect_mip6_opt_bad(const ip_tcp_opt *optp _U_, tvbuff_t *tvb, int offset,
|
|
guint optlen, packet_info *pinfo _U_,
|
|
proto_tree *opt_tree)
|
|
{
|
|
proto_tree *field_tree = NULL;
|
|
proto_item *tf;
|
|
|
|
tf = proto_tree_add_text(opt_tree, tvb, offset, optlen, "%s", optp->name);
|
|
field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
|
|
|
|
proto_tree_add_item(field_tree, hf_mip6_bad_auth, tvb,
|
|
offset + MIP6_BAD_AUTH_OFF,
|
|
optlen - MIP6_BAD_AUTH_OFF, FALSE);
|
|
}
|
|
|
|
static void
|
|
dissect_fmip6_opt_lla(const ip_tcp_opt *optp _U_, tvbuff_t *tvb, int offset,
|
|
guint optlen, packet_info *pinfo _U_,
|
|
proto_tree *opt_tree)
|
|
{
|
|
proto_tree *field_tree = NULL;
|
|
proto_item *tf;
|
|
int len, p;
|
|
|
|
tf = proto_tree_add_text(opt_tree, tvb, offset, optlen, "%s", optp->name);
|
|
field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
|
|
|
|
proto_tree_add_item(field_tree, hf_fmip6_lla_optcode, tvb,
|
|
offset + FMIP6_LLA_OPTCODE_OFF, FMIP6_LLA_OPTCODE_LEN, FALSE);
|
|
|
|
p = offset + FMIP6_LLA_LLA_OFF;
|
|
len = optlen - FMIP6_LLA_LLA_OFF;
|
|
|
|
if (len > 0) {
|
|
/*
|
|
* I'm not sure what "The format of the option when the LLA is 6
|
|
* bytes is shown in Figure 15. When the LLA size is different,
|
|
* the option MUST be aligned appropriately. See Section 6.2 in
|
|
* [3]." in RFC 4068 says should be done with an LLA size other
|
|
* than 6 bytes; section 6.2 in RFC 3775 (reference 3 in RFC 4068)
|
|
* says "Mobility options may have alignment requirements. Following
|
|
* the convention in IPv6, these options are aligned in a packet so
|
|
* that multi-octet values within the Option Data field of each
|
|
* option fall on natural boundaries (i.e., fields of width n octets
|
|
* are placed at an integer multiple of n octets from the start of
|
|
* the header, for n = 1, 2, 4, or 8) [11]."
|
|
*
|
|
* Reference 11 in RFC 3775 is RFC 2460, the IPv6 spec; nothing
|
|
* in there seems to talk about inserting padding *inside* the
|
|
* data value of an option, so I'm not sure what the extra pad0
|
|
* is doing there, unless the idea is to arrange that the LLA is
|
|
* at least aligned on a 2-byte boundary, in which case presumably
|
|
* it's always present. We'll assume that.
|
|
*/
|
|
if (len > 1) {
|
|
/* Skip padding. */
|
|
p += 1;
|
|
len -= 1;
|
|
proto_tree_add_text(field_tree, tvb,
|
|
p, len, "Link-layer address: %s",
|
|
bytestring_to_str(tvb_get_ptr(tvb, p, len), len, ':'));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_mip6_opt_mnid(const ip_tcp_opt *optp _U_, tvbuff_t *tvb, int offset,
|
|
guint optlen, packet_info *pinfo _U_, proto_tree *opt_tree)
|
|
{
|
|
proto_tree *field_tree = NULL;
|
|
proto_item *tf;
|
|
int len, p;
|
|
|
|
tf = proto_tree_add_text(opt_tree, tvb, offset, optlen, "%s", optp->name);
|
|
field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
|
|
|
|
proto_tree_add_item(field_tree, hf_mip6_mnid_subtype, tvb,
|
|
offset + MIP6_MNID_SUBTYPE_OFF, MIP6_MNID_SUBTYPE_LEN, FALSE);
|
|
|
|
p = offset + MIP6_MNID_MNID_OFF;
|
|
len = optlen - MIP6_MNID_MNID_OFF;
|
|
|
|
if (len > 0)
|
|
proto_tree_add_text(field_tree, tvb, p, len, "Identifier: %s", tvb_get_ptr(tvb, p, len));
|
|
}
|
|
|
|
static void
|
|
dissect_pmip6_opt_ts(const ip_tcp_opt *optp _U_, tvbuff_t *tvb, int offset,
|
|
guint optlen, packet_info *pinfo _U_, proto_tree *opt_tree)
|
|
{
|
|
const guint8 *reftime;
|
|
|
|
reftime = tvb_get_ptr(tvb, offset + 2, optlen);
|
|
proto_tree_add_bytes_format(opt_tree, hf_pmip6_timestamp, tvb, offset , 10,
|
|
reftime, "Timestamp: %s", ntp_fmt_ts(reftime));
|
|
}
|
|
|
|
static const ip_tcp_opt mip6_opts[] = {
|
|
{
|
|
PAD1,
|
|
"Pad1",
|
|
NULL,
|
|
NO_LENGTH,
|
|
0,
|
|
NULL,
|
|
},
|
|
{
|
|
PADN,
|
|
"PadN",
|
|
&ett_mip6_opt_padn,
|
|
VARIABLE_LENGTH,
|
|
0,
|
|
dissect_mip6_opt_padn
|
|
},
|
|
{
|
|
BRA,
|
|
"Binding Refresh Advice",
|
|
&ett_mip6_opt_bra,
|
|
FIXED_LENGTH,
|
|
MIP6_BRA_LEN,
|
|
dissect_mip6_opt_bra
|
|
},
|
|
{
|
|
ACOA,
|
|
"Alternate Care-of Address",
|
|
&ett_mip6_opt_acoa,
|
|
FIXED_LENGTH,
|
|
MIP6_ACOA_LEN,
|
|
dissect_mip6_opt_acoa
|
|
},
|
|
{
|
|
MNP,
|
|
"Mobile Network Prefix",
|
|
&ett_nemo_opt_mnp,
|
|
FIXED_LENGTH,
|
|
NEMO_MNP_LEN,
|
|
dissect_nemo_opt_mnp
|
|
},
|
|
{
|
|
NI,
|
|
"Nonce Indices",
|
|
&ett_mip6_opt_ni,
|
|
FIXED_LENGTH,
|
|
MIP6_NI_LEN,
|
|
dissect_mip6_opt_ni
|
|
},
|
|
{
|
|
BAD,
|
|
"Binding Authorization Data",
|
|
&ett_mip6_opt_bad,
|
|
VARIABLE_LENGTH,
|
|
0,
|
|
dissect_mip6_opt_bad
|
|
},
|
|
{
|
|
LLA,
|
|
"Link-Layer Address",
|
|
&ett_fmip6_opt_lla,
|
|
VARIABLE_LENGTH,
|
|
FMIP6_LLA_MINLEN,
|
|
dissect_fmip6_opt_lla
|
|
},
|
|
{
|
|
MNID,
|
|
"Mobile Node Identifier",
|
|
&ett_mip6_opt_mnid,
|
|
VARIABLE_LENGTH,
|
|
MIP6_MNID_MINLEN,
|
|
dissect_mip6_opt_mnid
|
|
},
|
|
{
|
|
HNP,
|
|
"Home Network Prefix",
|
|
&ett_pmip6_opt_hnp,
|
|
FIXED_LENGTH,
|
|
NEMO_MNP_LEN,
|
|
dissect_nemo_opt_mnp
|
|
},
|
|
{
|
|
TS,
|
|
"Timestamp",
|
|
&ett_pmip6_opt_ts,
|
|
FIXED_LENGTH,
|
|
PMIP6_TS_LEN,
|
|
dissect_pmip6_opt_ts
|
|
},
|
|
};
|
|
|
|
#define N_MIP6_OPTS (sizeof mip6_opts / sizeof mip6_opts[0])
|
|
|
|
/* Like "dissect_ip_tcp_options()", but assumes the length of an option
|
|
* *doesn't* include the type and length bytes. The option parsers,
|
|
* however, are passed a length that *does* include them.
|
|
*/
|
|
static void
|
|
dissect_mipv6_options(tvbuff_t *tvb, int offset, guint length,
|
|
const ip_tcp_opt *opttab, int nopts, int eol,
|
|
packet_info *pinfo, proto_tree *opt_tree)
|
|
{
|
|
guchar opt;
|
|
const ip_tcp_opt *optp;
|
|
opt_len_type len_type;
|
|
unsigned int optlen;
|
|
const char *name;
|
|
char name_str[7+1+1+2+2+1+1]; /* "Unknown (0x%02x)" */
|
|
void (*dissect)(const struct ip_tcp_opt *, tvbuff_t *,
|
|
int, guint, packet_info *, proto_tree *);
|
|
guint len;
|
|
|
|
while (length > 0) {
|
|
opt = tvb_get_guint8(tvb, offset);
|
|
for (optp = &opttab[0]; optp < &opttab[nopts]; optp++) {
|
|
if (optp->optcode == opt)
|
|
break;
|
|
}
|
|
if (optp == &opttab[nopts]) {
|
|
/* We assume that the only NO_LENGTH options are Pad1 options,
|
|
* so that we can treat unknown options as VARIABLE_LENGTH with a
|
|
* minimum of 0, and at least be able to move on to the next option
|
|
* by using the length in the option.
|
|
*/
|
|
optp = NULL; /* indicate that we don't know this option */
|
|
len_type = VARIABLE_LENGTH;
|
|
optlen = 0;
|
|
g_snprintf(name_str, sizeof name_str, "Unknown (0x%02x)", opt);
|
|
name = name_str;
|
|
dissect = NULL;
|
|
} else {
|
|
len_type = optp->len_type;
|
|
optlen = optp->optlen;
|
|
name = optp->name;
|
|
dissect = optp->dissect;
|
|
}
|
|
--length; /* account for type byte */
|
|
if (len_type != NO_LENGTH) {
|
|
/* Option has a length. Is it in the packet? */
|
|
if (length == 0) {
|
|
/* Bogus - packet must at least include
|
|
* option code byte and length byte!
|
|
*/
|
|
proto_tree_add_text(opt_tree, tvb, offset, 1,
|
|
"%s (length byte past end of options)", name);
|
|
return;
|
|
}
|
|
len = tvb_get_guint8(tvb, offset + 1); /* Size specified in option */
|
|
--length; /* account for length byte */
|
|
if (len > length) {
|
|
/* Bogus - option goes past the end of the header. */
|
|
proto_tree_add_text(opt_tree, tvb, offset, length,
|
|
"%s (option length = %u byte%s says option goes past end of options)",
|
|
name, len, plurality(len, "", "s"));
|
|
return;
|
|
} else if (len_type == FIXED_LENGTH && len != optlen) {
|
|
/* Bogus - option length isn't what it's supposed to be for this
|
|
option. */
|
|
proto_tree_add_text(opt_tree, tvb, offset, len + 2,
|
|
"%s (with option length = %u byte%s; should be %u)", name,
|
|
len, plurality(len, "", "s"), optlen);
|
|
return;
|
|
} else if (len_type == VARIABLE_LENGTH && len < optlen) {
|
|
/* Bogus - option length is less than what it's supposed to be for
|
|
this option. */
|
|
proto_tree_add_text(opt_tree, tvb, offset, len + 2,
|
|
"%s (with option length = %u byte%s; should be >= %u)", name,
|
|
len, plurality(len, "", "s"), optlen);
|
|
return;
|
|
} else {
|
|
if (optp == NULL) {
|
|
proto_tree_add_text(opt_tree, tvb, offset, len + 2, "%s (%u byte%s)",
|
|
name, len, plurality(len, "", "s"));
|
|
} else {
|
|
if (dissect != NULL) {
|
|
/* Option has a dissector. */
|
|
if (opt == LLA)
|
|
(*dissect)(optp, tvb, offset,
|
|
len + 2 + FMIP6_LLA_OPTCODE_LEN, pinfo, opt_tree);
|
|
else
|
|
(*dissect)(optp, tvb, offset, len + 2, pinfo, opt_tree);
|
|
} else {
|
|
/* Option has no data, hence no dissector. */
|
|
proto_tree_add_text(opt_tree, tvb, offset, len + 2, "%s", name);
|
|
}
|
|
}
|
|
/* RFC4068 Section 6.4.4
|
|
* Length The size of this option in octets not including the
|
|
* Type, Length, and Option-Code fields.
|
|
*/
|
|
if (opt == LLA)
|
|
offset += len + 2 + FMIP6_LLA_OPTCODE_LEN;
|
|
else
|
|
offset += len + 2;
|
|
}
|
|
if (opt == LLA)
|
|
length -= (len + FMIP6_LLA_OPTCODE_LEN);
|
|
else
|
|
length -= len;
|
|
} else {
|
|
proto_tree_add_text(opt_tree, tvb, offset, 1, "%s", name);
|
|
offset += 1;
|
|
}
|
|
if (opt == eol)
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Function to dissect mobility options */
|
|
static int
|
|
dissect_mip6_options(tvbuff_t *tvb, proto_tree *mip6_tree, int offset, int len,
|
|
packet_info *pinfo)
|
|
{
|
|
proto_tree *opts_tree = NULL;
|
|
proto_item *ti;
|
|
|
|
if (!mip6_tree)
|
|
return len;
|
|
|
|
ti = proto_tree_add_text(mip6_tree, tvb, offset, len, "Mobility Options");
|
|
opts_tree = proto_item_add_subtree(ti, ett_mip6);
|
|
|
|
dissect_mipv6_options(tvb, offset, len, mip6_opts, N_MIP6_OPTS, -1, pinfo, opts_tree);
|
|
|
|
return len;
|
|
}
|
|
|
|
/* Function that dissects the whole MIPv6 packet */
|
|
static void
|
|
dissect_mip6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_tree *mip6_tree = NULL;
|
|
proto_item *ti;
|
|
guint8 type, pproto;
|
|
guint len, offset = 0, start_offset = offset;
|
|
|
|
/* Make entries in Protocol column and Info column on summary display */
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "MIPv6");
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
len = (tvb_get_guint8(tvb, MIP6_HLEN_OFF) + 1) * 8;
|
|
pproto = tvb_get_guint8(tvb, MIP6_PROTO_OFF);
|
|
if (tree) {
|
|
ti = proto_tree_add_item(tree, proto_mip6, tvb, 0, len, FALSE);
|
|
mip6_tree = proto_item_add_subtree(ti, ett_mip6);
|
|
|
|
/* Process header fields */
|
|
proto_tree_add_uint_format(mip6_tree, hf_mip6_proto, tvb,
|
|
MIP6_PROTO_OFF, 1,
|
|
tvb_get_guint8(tvb, MIP6_PROTO_OFF),
|
|
"Payload protocol: %s (0x%02x)",
|
|
ipprotostr(
|
|
tvb_get_guint8(tvb, MIP6_PROTO_OFF)),
|
|
tvb_get_guint8(tvb, MIP6_PROTO_OFF));
|
|
|
|
proto_tree_add_uint_format(mip6_tree, hf_mip6_hlen, tvb,
|
|
MIP6_HLEN_OFF, 1,
|
|
tvb_get_guint8(tvb, MIP6_HLEN_OFF),
|
|
"Header length: %u (%u bytes)",
|
|
tvb_get_guint8(tvb, MIP6_HLEN_OFF),
|
|
len);
|
|
|
|
proto_tree_add_item(mip6_tree, hf_mip6_mhtype, tvb,
|
|
MIP6_TYPE_OFF, 1, FALSE);
|
|
|
|
proto_tree_add_item(mip6_tree, hf_mip6_reserved, tvb,
|
|
MIP6_RES_OFF, 1, FALSE);
|
|
|
|
proto_tree_add_item(mip6_tree, hf_mip6_csum, tvb,
|
|
MIP6_CSUM_OFF, 2, FALSE);
|
|
}
|
|
|
|
/* Process mobility header */
|
|
type = tvb_get_guint8(tvb, MIP6_TYPE_OFF);
|
|
switch (type) {
|
|
case BRR:
|
|
offset = dissect_mip6_brr(tvb, mip6_tree, pinfo);
|
|
break;
|
|
case HOTI:
|
|
offset = dissect_mip6_hoti(tvb, mip6_tree, pinfo);
|
|
break;
|
|
case COTI:
|
|
offset = dissect_mip6_coti(tvb, mip6_tree, pinfo);
|
|
break;
|
|
case HOT:
|
|
offset = dissect_mip6_hot(tvb, mip6_tree, pinfo);
|
|
break;
|
|
case COT:
|
|
offset = dissect_mip6_cot(tvb, mip6_tree, pinfo);
|
|
break;
|
|
case BU:
|
|
offset = dissect_mip6_bu(tvb, mip6_tree, pinfo);
|
|
if (proto_nemo == 1) {
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "NEMO");
|
|
}
|
|
break;
|
|
case BA:
|
|
offset = dissect_mip6_ba(tvb, mip6_tree, pinfo);
|
|
if (proto_nemo == 1) {
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "NEMO");
|
|
}
|
|
break;
|
|
case BE:
|
|
offset = dissect_mip6_be(tvb, mip6_tree, pinfo);
|
|
break;
|
|
case FBU:
|
|
offset = dissect_fmip6_fbu(tvb, mip6_tree, pinfo);
|
|
break;
|
|
case FBACK:
|
|
offset = dissect_fmip6_fback(tvb, mip6_tree, pinfo);
|
|
break;
|
|
case FNA:
|
|
offset = dissect_fmip6_fna(tvb, mip6_tree, pinfo);
|
|
break;
|
|
default:
|
|
dissect_mip6_unknown(tvb, mip6_tree, pinfo);
|
|
offset = len;
|
|
break;
|
|
}
|
|
|
|
/* Process mobility options */
|
|
if (offset < len) {
|
|
if (len < (offset - start_offset)) {
|
|
proto_tree_add_text(tree, tvb, 0, 0, "Bogus header length");
|
|
return;
|
|
}
|
|
len -= (offset - start_offset);
|
|
dissect_mip6_options(tvb, mip6_tree, offset, len, pinfo);
|
|
}
|
|
|
|
if (type == FNA && pproto == IP_PROTO_IPV6) {
|
|
dissector_table_t ip_dissector_table;
|
|
tvbuff_t *ipv6_tvb;
|
|
|
|
ip_dissector_table = find_dissector_table("ip.proto");
|
|
ipv6_tvb = tvb_new_subset(tvb, len + 8, -1, -1);
|
|
|
|
/* Call the IPv6 dissector */
|
|
dissector_try_port(ip_dissector_table, pproto, ipv6_tvb, pinfo, tree);
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_set_str(pinfo->cinfo, COL_INFO,
|
|
"Fast Neighbor Advertisement[Fast Binding Update]");
|
|
}
|
|
}
|
|
|
|
/* Register the protocol with Wireshark */
|
|
void
|
|
proto_register_mip6(void)
|
|
{
|
|
/* Setup list of header fields */
|
|
static hf_register_info hf[] = {
|
|
|
|
{ &hf_mip6_proto, { "Payload protocol", "mip6.proto",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Payload protocol", HFILL }},
|
|
{ &hf_mip6_hlen, { "Header length", "mip6.hlen",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Header length", HFILL }},
|
|
{ &hf_mip6_mhtype, { "Mobility Header Type", "mip6.mhtype",
|
|
FT_UINT8, BASE_DEC, VALS(mip6_mh_types), 0,
|
|
"Mobility Header Type", HFILL }},
|
|
{ &hf_mip6_reserved, { "Reserved", "mip6.reserved",
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
"Reserved", HFILL }},
|
|
{ &hf_mip6_csum, { "Checksum", "mip6.csum",
|
|
FT_UINT16, BASE_HEX, NULL, 0,
|
|
"Header Checksum", HFILL }},
|
|
|
|
{ &hf_mip6_hoti_cookie, { "Home Init Cookie", "mip6.hoti.cookie",
|
|
FT_UINT64, BASE_HEX, NULL, 0,
|
|
"Home Init Cookie", HFILL }},
|
|
|
|
{ &hf_mip6_coti_cookie, { "Care-of Init Cookie", "mip6.coti.cookie",
|
|
FT_UINT64, BASE_HEX, NULL, 0,
|
|
"Care-of Init Cookie", HFILL }},
|
|
|
|
{ &hf_mip6_hot_nindex, { "Home Nonce Index", "mip6.hot.nindex",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Home Nonce Index", HFILL }},
|
|
{ &hf_mip6_hot_cookie, { "Home Init Cookie", "mip6.hot.cookie",
|
|
FT_UINT64, BASE_HEX, NULL, 0,
|
|
"Home Init Cookie", HFILL }},
|
|
{ &hf_mip6_hot_token, { "Home Keygen Token", "mip6.hot.token",
|
|
FT_UINT64, BASE_HEX, NULL, 0,
|
|
"Home Keygen Token", HFILL }},
|
|
|
|
{ &hf_mip6_cot_nindex, { "Care-of Nonce Index", "mip6.cot.nindex",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Care-of Nonce Index", HFILL }},
|
|
{ &hf_mip6_cot_cookie, { "Care-of Init Cookie", "mip6.cot.cookie",
|
|
FT_UINT64, BASE_HEX, NULL, 0,
|
|
"Care-of Init Cookie", HFILL }},
|
|
{ &hf_mip6_cot_token, { "Care-of Keygen Token", "mip6.cot.token",
|
|
FT_UINT64, BASE_HEX, NULL, 0,
|
|
"Care-of Keygen Token", HFILL }},
|
|
|
|
{ &hf_mip6_bu_seqnr, { "Sequence number", "mip6.bu.seqnr",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Sequence number", HFILL }},
|
|
{ &hf_mip6_bu_a_flag, { "Acknowledge (A) flag", "mip6.bu.a_flag",
|
|
FT_BOOLEAN, 8, TFS(&mip6_bu_a_flag_value),
|
|
0x80, "Acknowledge (A) flag", HFILL }},
|
|
{ &hf_mip6_bu_h_flag, { "Home Registration (H) flag",
|
|
"mip6.bu.h_flag",
|
|
FT_BOOLEAN, 8, TFS(&mip6_bu_h_flag_value),
|
|
0x40, "Home Registration (H) flag", HFILL }},
|
|
{ &hf_mip6_bu_l_flag, { "Link-Local Compatibility (L) flag",
|
|
"mip6.bu.l_flag",
|
|
FT_BOOLEAN, 8, TFS(&mip6_bu_l_flag_value),
|
|
0x20, "Home Registration (H) flag", HFILL }},
|
|
{ &hf_mip6_bu_k_flag, { "Key Management Compatibility (K) flag",
|
|
"mip6.bu.k_flag",
|
|
FT_BOOLEAN, 8, TFS(&mip6_bu_k_flag_value),
|
|
0x10, "Key Management Compatibility (K) flag",
|
|
HFILL }},
|
|
{ &hf_mip6_bu_m_flag, { "MAP Registration Compatibility (M) flag",
|
|
"mip6.bu.m_flag",
|
|
FT_BOOLEAN, 8, TFS(&mip6_bu_m_flag_value),
|
|
0x08, "MAP Registration Compatibility (M) flag",
|
|
HFILL }},
|
|
{ &hf_nemo_bu_r_flag, { "Mobile Router (R) flag",
|
|
"nemo.bu.r_flag",
|
|
FT_BOOLEAN, 8, TFS(&nemo_bu_r_flag_value),
|
|
0x04, "Mobile Router (R) flag",
|
|
HFILL }},
|
|
{ &hf_proxy_bu_p_flag, { "Proxy Registration (P) flag",
|
|
"mip6.bu.p_flag",
|
|
FT_BOOLEAN, 8, TFS(&proxy_bu_p_flag_value),
|
|
0x02, "Proxy Registration (P) flag",
|
|
HFILL }},
|
|
{ &hf_mip6_bu_lifetime, { "Lifetime", "mip6.bu.lifetime",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Lifetime", HFILL }},
|
|
|
|
{ &hf_mip6_ba_status, { "Status", "mip6.ba.status",
|
|
FT_UINT8, BASE_DEC,
|
|
VALS(&mip6_ba_status_value), 0,
|
|
"Binding Acknowledgement status", HFILL }},
|
|
{ &hf_mip6_ba_k_flag, { "Key Management Compatibility (K) flag",
|
|
"mip6.ba.k_flag",
|
|
FT_BOOLEAN, 8, TFS(&mip6_bu_k_flag_value),
|
|
0x80, "Key Management Compatibility (K) flag",
|
|
HFILL }},
|
|
{ &hf_nemo_ba_r_flag, { "Mobile Router (R) flag",
|
|
"nemo.ba.r_flag",
|
|
FT_BOOLEAN, 8, TFS(&nemo_bu_r_flag_value),
|
|
0x40, "Mobile Router (R) flag",
|
|
HFILL }},
|
|
{ &hf_proxy_ba_p_flag, { "Proxy Registration (P) flag",
|
|
"proxy.ba.p_flag",
|
|
FT_BOOLEAN, 8, TFS(&proxy_bu_p_flag_value),
|
|
0x20, "Proxy Registration (P) flag",
|
|
HFILL }},
|
|
|
|
{ &hf_mip6_ba_seqnr, { "Sequence number", "mip6.ba.seqnr",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Sequence number", HFILL }},
|
|
{ &hf_mip6_ba_lifetime, { "Lifetime", "mip6.ba.lifetime",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Lifetime", HFILL }},
|
|
|
|
{ &hf_mip6_be_status, { "Status", "mip6.be.status",
|
|
FT_UINT8, BASE_DEC,
|
|
VALS(&mip6_be_status_value), 0,
|
|
"Binding Error status", HFILL }},
|
|
{ &hf_mip6_be_haddr, { "Home Address", "mip6.be.haddr",
|
|
FT_IPv6, BASE_HEX, NULL, 0,
|
|
"Home Address", HFILL }},
|
|
|
|
{ &hf_fmip6_fbu_seqnr, { "Sequence number", "fmip6.fbu.seqnr",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Sequence number", HFILL }},
|
|
{ &hf_fmip6_fbu_a_flag, { "Acknowledge (A) flag", "fmip6.fbu.a_flag",
|
|
FT_BOOLEAN, 8, TFS(&fmip6_fbu_a_flag_value),
|
|
0x80, "Acknowledge (A) flag", HFILL }},
|
|
{ &hf_fmip6_fbu_h_flag, { "Home Registration (H) flag",
|
|
"fmip6.fbu.h_flag",
|
|
FT_BOOLEAN, 8, TFS(&fmip6_fbu_h_flag_value),
|
|
0x40, "Home Registration (H) flag", HFILL }},
|
|
{ &hf_fmip6_fbu_l_flag, { "Link-Local Compatibility (L) flag",
|
|
"fmip6.fbu.l_flag",
|
|
FT_BOOLEAN, 8, TFS(&fmip6_fbu_l_flag_value),
|
|
0x20, "Home Registration (H) flag", HFILL }},
|
|
{ &hf_fmip6_fbu_k_flag, { "Key Management Compatibility (K) flag",
|
|
"fmip6.fbu.k_flag",
|
|
FT_BOOLEAN, 8, TFS(&fmip6_fbu_k_flag_value),
|
|
0x10, "Key Management Compatibility (K) flag",
|
|
HFILL }},
|
|
{ &hf_fmip6_fbu_lifetime, { "Lifetime", "fmip6.fbu.lifetime",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Lifetime", HFILL }},
|
|
|
|
{ &hf_fmip6_fback_status, { "Status", "fmip6.fback.status",
|
|
FT_UINT8, BASE_DEC,
|
|
VALS(&fmip6_fback_status_value), 0,
|
|
"Fast Binding Acknowledgement status", HFILL }},
|
|
{ &hf_fmip6_fback_k_flag, { "Key Management Compatibility (K) flag",
|
|
"fmip6.fback.k_flag",
|
|
FT_BOOLEAN, 8, TFS(&fmip6_fbu_k_flag_value),
|
|
0x80, "Key Management Compatibility (K) flag",
|
|
HFILL }},
|
|
{ &hf_fmip6_fback_seqnr, { "Sequence number", "fmip6.fback.seqnr",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Sequence number", HFILL }},
|
|
{ &hf_fmip6_fback_lifetime, { "Lifetime", "fmip6.fback.lifetime",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Lifetime", HFILL }},
|
|
|
|
{ &hf_mip6_bra_interval, { "Refresh interval", "mip6.bra.interval",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Refresh interval", HFILL }},
|
|
|
|
{ &hf_mip6_acoa_acoa, { "Alternate care-of address", "mip6.acoa.acoa",
|
|
FT_IPv6, BASE_HEX, NULL, 0,
|
|
"Alternate Care-of address", HFILL }},
|
|
|
|
{ &hf_mip6_ni_hni, { "Home nonce index", "mip6.ni.hni",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Home nonce index", HFILL }},
|
|
{ &hf_mip6_ni_cni, { "Care-of nonce index", "mip6.ni.cni",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Care-of nonce index", HFILL }},
|
|
|
|
{ &hf_mip6_bad_auth, { "Authenticator", "mip6.bad.auth",
|
|
FT_BYTES, BASE_HEX, NULL, 0,
|
|
"Authenticator", HFILL }},
|
|
|
|
{ &hf_fmip6_lla_optcode, { "Option-Code", "mip6.lla.optcode",
|
|
FT_UINT8, BASE_DEC, VALS(&fmip6_lla_optcode_value), 0,
|
|
"Option-Code", HFILL }},
|
|
|
|
{ &hf_nemo_mnp_pfl, { "Mobile Network Prefix Length", "nemo.mnp.pfl",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Mobile Network Prefix Length", HFILL }},
|
|
|
|
{ &hf_nemo_mnp_mnp, { "Mobile Network Prefix", "nemo.mnp.mnp",
|
|
FT_IPv6, BASE_HEX, NULL, 0,
|
|
"Mobile Network Prefix", HFILL }},
|
|
|
|
{ &hf_mip6_mnid_subtype, { "Subtype", "mip6.mnid.subtype",
|
|
FT_UINT8, BASE_DEC, VALS(&mip6_mnid_subtype_value), 0,
|
|
"Subtype", HFILL }},
|
|
|
|
{ &hf_pmip6_timestamp, { "Timestamp", "pmip6.timestamp",
|
|
FT_BYTES, BASE_NONE, NULL, 0, "Timestamp", HFILL }},
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_mip6,
|
|
&ett_mip6_opt_padn,
|
|
&ett_mip6_opt_bra,
|
|
&ett_mip6_opt_acoa,
|
|
&ett_mip6_opt_ni,
|
|
&ett_mip6_opt_bad,
|
|
&ett_fmip6_opt_lla,
|
|
&ett_nemo_opt_mnp,
|
|
&ett_mip6_opt_mnid,
|
|
&ett_pmip6_opt_hnp,
|
|
&ett_pmip6_opt_ts
|
|
};
|
|
|
|
/* Register the protocol name and description */
|
|
proto_mip6 = proto_register_protocol("Mobile IPv6 / Network Mobility", "MIPv6", "mipv6");
|
|
|
|
/* Register the dissector by name */
|
|
/* register_dissector("mipv6", dissect_nemo, proto_nemo); */
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_mip6, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_mip6(void)
|
|
{
|
|
dissector_handle_t mip6_handle;
|
|
|
|
/* mip6_handle = find_dissector("mipv6"); */
|
|
mip6_handle = create_dissector_handle(dissect_mip6, proto_mip6);
|
|
dissector_add("ip.proto", IP_PROTO_MIPV6_OLD, mip6_handle);
|
|
dissector_add("ip.proto", IP_PROTO_MIPV6, mip6_handle);
|
|
}
|