1228 lines
37 KiB
C
1228 lines
37 KiB
C
/* packet-isis-hello.c
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* Routines for decoding isis hello packets and their CLVs
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*
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* $Id$
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* Stuart Stanley <stuarts@mxmail.net>
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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., 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 <glib.h>
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#include <epan/packet.h>
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#include "packet-osi.h"
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#include "packet-isis.h"
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#include "packet-isis-clv.h"
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#include "packet-isis-hello.h"
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#include <epan/addr_resolv.h>
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#define APPEND_BOOLEAN_FLAG(flag, item, string) \
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if(flag){ \
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if(item) \
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proto_item_append_text(item, string, sep); \
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sep = cont_sep; \
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}
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static const char initial_sep[] = " (";
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static const char cont_sep[] = ", ";
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/* hello packets */
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static int hf_isis_hello_circuit_reserved = -1;
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static int hf_isis_hello_source_id = -1;
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static int hf_isis_hello_holding_timer = -1;
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static int hf_isis_hello_pdu_length = -1;
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static int hf_isis_hello_priority_reserved = -1;
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static int hf_isis_hello_lan_id = -1;
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static int hf_isis_hello_local_circuit_id = -1;
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static int hf_isis_hello_clv_ipv4_int_addr = -1;
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static int hf_isis_hello_clv_ipv6_int_addr = -1;
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/* static int hf_isis_hello_clv_ptp_adj = -1; */
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static int hf_isis_hello_clv_mt = -1;
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static int hf_isis_hello_clv_restart_flags = -1;
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static int hf_isis_hello_clv_restart_flags_rr = -1;
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static int hf_isis_hello_clv_restart_flags_ra = -1;
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static int hf_isis_hello_clv_restart_flags_sa = -1;
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static int hf_isis_hello_clv_restart_remain_time = -1;
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static int hf_isis_hello_clv_restart_neighbor = -1;
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static gint ett_isis_hello = -1;
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static gint ett_isis_hello_clv_area_addr = -1;
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static gint ett_isis_hello_clv_is_neighbors = -1;
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static gint ett_isis_hello_clv_padding = -1;
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static gint ett_isis_hello_clv_unknown = -1;
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static gint ett_isis_hello_clv_nlpid = -1;
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static gint ett_isis_hello_clv_authentication = -1;
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static gint ett_isis_hello_clv_ip_authentication = -1;
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static gint ett_isis_hello_clv_ipv4_int_addr = -1;
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static gint ett_isis_hello_clv_ipv6_int_addr = -1;
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static gint ett_isis_hello_clv_ptp_adj = -1;
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static gint ett_isis_hello_clv_mt = -1;
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static gint ett_isis_hello_clv_restart = -1;
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static gint ett_isis_hello_clv_restart_flags = -1;
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static gint ett_isis_hello_clv_mt_port_cap = -1;
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static gint ett_isis_hello_clv_mt_port_cap_spb_mcid = -1;
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static gint ett_isis_hello_clv_mt_port_cap_spb_aux_mcid = -1;
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static gint ett_isis_hello_clv_mt_port_cap_spb_digest = -1;
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static gint ett_isis_hello_clv_mt_port_cap_spb_bvid_tuples = -1;
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static gint ett_isis_hello_clv_checksum = -1;
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static const value_string isis_hello_circuit_type_vals[] = {
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{ ISIS_HELLO_TYPE_RESERVED, "Reserved 0 (discard PDU)"},
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{ ISIS_HELLO_TYPE_LEVEL_1, "Level 1 only"},
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{ ISIS_HELLO_TYPE_LEVEL_2, "Level 2 only"},
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{ ISIS_HELLO_TYPE_LEVEL_12, "Level 1 and 2"},
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{ 0, NULL} };
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/*
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* Predclare dissectors for use in clv dissection.
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*/
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static void dissect_hello_padding_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_is_neighbors_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_ptp_adj_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_area_address_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_authentication_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_ip_authentication_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_checksum_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_ipv6_int_addr_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_ip_int_addr_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_mt_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_nlpid_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_restart_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static void dissect_hello_mt_port_cap_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int id_length, int length);
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static const isis_clv_handle_t clv_l1_hello_opts[] = {
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{
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ISIS_CLV_AREA_ADDRESS,
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"Area address(es)",
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&ett_isis_hello_clv_area_addr,
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dissect_hello_area_address_clv
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},
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{
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ISIS_CLV_IS_NEIGHBORS,
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"IS Neighbor(s)",
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&ett_isis_hello_clv_is_neighbors,
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dissect_hello_is_neighbors_clv
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},
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{
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ISIS_CLV_PADDING,
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"Padding",
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&ett_isis_hello_clv_padding,
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dissect_hello_padding_clv
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},
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{
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ISIS_CLV_PROTOCOLS_SUPPORTED,
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"Protocols Supported",
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&ett_isis_hello_clv_nlpid,
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dissect_hello_nlpid_clv
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},
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{
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ISIS_CLV_IP_ADDR,
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"IP Interface address(es)",
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&ett_isis_hello_clv_ipv4_int_addr,
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dissect_hello_ip_int_addr_clv
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},
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{
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ISIS_CLV_IP6_ADDR,
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"IPv6 Interface address(es)",
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&ett_isis_hello_clv_ipv6_int_addr,
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dissect_hello_ipv6_int_addr_clv
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},
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{
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ISIS_CLV_RESTART,
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"Restart Signaling",
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&ett_isis_hello_clv_restart,
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dissect_hello_restart_clv
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},
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{
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ISIS_CLV_AUTHENTICATION,
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"Authentication",
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&ett_isis_hello_clv_authentication,
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dissect_hello_authentication_clv
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},
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{
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ISIS_CLV_IP_AUTHENTICATION,
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"IP Authentication",
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&ett_isis_hello_clv_ip_authentication,
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dissect_hello_ip_authentication_clv
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},
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{
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ISIS_CLV_MT_SUPPORTED,
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"Multi Topology",
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&ett_isis_hello_clv_mt,
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dissect_hello_mt_clv
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},
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{
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ISIS_CLV_CHECKSUM,
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"Checksum",
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&ett_isis_hello_clv_checksum,
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dissect_hello_checksum_clv
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},
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{
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0,
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"",
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NULL,
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NULL
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}
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};
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static const isis_clv_handle_t clv_l2_hello_opts[] = {
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{
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ISIS_CLV_AREA_ADDRESS,
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"Area address(es)",
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&ett_isis_hello_clv_area_addr,
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dissect_hello_area_address_clv
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},
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{
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ISIS_CLV_IS_NEIGHBORS,
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"IS Neighbor(s)",
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&ett_isis_hello_clv_is_neighbors,
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dissect_hello_is_neighbors_clv
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},
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{
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ISIS_CLV_PADDING,
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"Padding",
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&ett_isis_hello_clv_padding,
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dissect_hello_padding_clv
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},
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{
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ISIS_CLV_PROTOCOLS_SUPPORTED,
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"Protocols Supported",
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&ett_isis_hello_clv_nlpid,
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dissect_hello_nlpid_clv
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},
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{
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ISIS_CLV_IP_ADDR,
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"IP Interface address(es)",
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&ett_isis_hello_clv_ipv4_int_addr,
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dissect_hello_ip_int_addr_clv
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},
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{
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ISIS_CLV_IP6_ADDR,
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"IPv6 Interface address(es)",
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&ett_isis_hello_clv_ipv6_int_addr,
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dissect_hello_ipv6_int_addr_clv
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},
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{
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ISIS_CLV_AUTHENTICATION,
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"Authentication",
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&ett_isis_hello_clv_authentication,
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dissect_hello_authentication_clv
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},
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{
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ISIS_CLV_IP_AUTHENTICATION,
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"IP Authentication",
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&ett_isis_hello_clv_ip_authentication,
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dissect_hello_ip_authentication_clv
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},
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{
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ISIS_CLV_RESTART,
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"Restart Signaling",
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&ett_isis_hello_clv_restart,
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dissect_hello_restart_clv
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},
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{
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ISIS_CLV_MT_SUPPORTED,
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"Multi Topology",
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&ett_isis_hello_clv_mt,
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dissect_hello_mt_clv
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},
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{
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ISIS_CLV_CHECKSUM,
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"Checksum",
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&ett_isis_hello_clv_checksum,
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dissect_hello_checksum_clv
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},
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{
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0,
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"",
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NULL,
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NULL
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}
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};
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static const isis_clv_handle_t clv_ptp_hello_opts[] = {
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{
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ISIS_CLV_AREA_ADDRESS,
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"Area address(es)",
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&ett_isis_hello_clv_area_addr,
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dissect_hello_area_address_clv
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},
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{
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ISIS_CLV_PADDING,
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"Padding",
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&ett_isis_hello_clv_padding,
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dissect_hello_padding_clv
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},
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{
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ISIS_CLV_PROTOCOLS_SUPPORTED,
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"Protocols Supported",
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&ett_isis_hello_clv_nlpid,
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dissect_hello_nlpid_clv
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},
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{
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ISIS_CLV_IP_ADDR,
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"IP Interface address(es)",
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&ett_isis_hello_clv_ipv4_int_addr,
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dissect_hello_ip_int_addr_clv
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},
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{
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ISIS_CLV_IP6_ADDR,
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"IPv6 Interface address(es)",
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&ett_isis_hello_clv_ipv6_int_addr,
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dissect_hello_ipv6_int_addr_clv
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},
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{
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ISIS_CLV_AUTHENTICATION,
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"Authentication",
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&ett_isis_hello_clv_authentication,
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dissect_hello_authentication_clv
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},
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{
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ISIS_CLV_IP_AUTHENTICATION,
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"IP Authentication",
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&ett_isis_hello_clv_ip_authentication,
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dissect_hello_ip_authentication_clv
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},
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{
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ISIS_CLV_MT_PORT_CAP,
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"MT Port Capability",
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&ett_isis_hello_clv_mt_port_cap,
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dissect_hello_mt_port_cap_clv
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},
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{
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ISIS_CLV_RESTART,
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"Restart Option",
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&ett_isis_hello_clv_restart,
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dissect_hello_restart_clv
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},
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{
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ISIS_CLV_PTP_ADJ_STATE,
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"Point-to-point Adjacency State",
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&ett_isis_hello_clv_ptp_adj,
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dissect_hello_ptp_adj_clv
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},
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{
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ISIS_CLV_MT_SUPPORTED,
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"Multi Topology",
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&ett_isis_hello_clv_mt,
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dissect_hello_mt_clv
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},
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{
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ISIS_CLV_CHECKSUM,
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"Checksum",
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&ett_isis_hello_clv_checksum,
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dissect_hello_checksum_clv
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},
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{
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0,
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"",
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NULL,
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NULL
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}
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};
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static void
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dissect_hello_mt_port_cap_spb_mcid_clv(tvbuff_t *tvb,
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proto_tree *tree, int offset, int subtype, int sublen)
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{
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const int MCID_LEN = 51;
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const int SUBLEN = 2 * MCID_LEN;
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if (sublen != SUBLEN) {
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isis_dissect_unknown( tvb, tree, offset,
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"Short SPB MCID TLV (%d vs %d)", sublen, SUBLEN);
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return;
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}
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else {
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proto_tree *subtree, *ti;
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const guint8 *mcid = tvb_get_ptr(tvb, offset, MCID_LEN);
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const guint8 *aux_mcid = tvb_get_ptr(tvb, offset + MCID_LEN, MCID_LEN);
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int i;
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ti = proto_tree_add_text( tree, tvb, offset-2, sublen+2,
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"SPB MCID: Type: 0x%02x, Length: %d", subtype, sublen);
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subtree = proto_item_add_subtree(ti, ett_isis_hello_clv_mt_port_cap_spb_mcid);
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/* MCID: */
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proto_tree_add_text( subtree, tvb, offset, MCID_LEN, "MCID:");
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for (i = 0 ; i < 48 ; i+= 8, offset += 8) {
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proto_tree_add_text( subtree, tvb, offset, 8,
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" %02x %02x %02x %02x %02x %02x %02x %02x",
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mcid[i+0], mcid[i+1], mcid[i+2], mcid[i+3],
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mcid[i+4], mcid[i+5], mcid[i+6], mcid[i+7]);
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}
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proto_tree_add_text( subtree, tvb, offset, 3,
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" %02x %02x %02x",
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mcid[i+0], mcid[i+1], mcid[i+2]);
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offset += 3;
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/* Aux MCID: */
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proto_tree_add_text( subtree, tvb, offset, MCID_LEN, "Aux MCID:");
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for (i = 0 ; i < 48 ; i+= 8, offset += 8) {
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proto_tree_add_text( subtree, tvb, offset, 8,
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" %02x %02x %02x %02x %02x %02x %02x %02x",
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aux_mcid[i+0], aux_mcid[i+1], aux_mcid[i+2], aux_mcid[i+3],
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aux_mcid[i+4], aux_mcid[i+5], aux_mcid[i+6], aux_mcid[i+7]);
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}
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proto_tree_add_text( subtree, tvb, offset, 3,
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" %02x %02x %02x",
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aux_mcid[i+0], aux_mcid[i+1], aux_mcid[i+2]);
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offset += 3;
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}
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}
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|
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static void
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dissect_hello_mt_port_cap_spb_digest_clv(tvbuff_t *tvb,
|
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proto_tree *tree, int offset, int subtype, int sublen)
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{
|
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const int DIGEST_LEN = 32;
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const int SUBLEN = 1 + DIGEST_LEN;
|
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if (sublen != SUBLEN) {
|
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isis_dissect_unknown( tvb, tree, offset,
|
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"Short SPB Digest TLV (%d vs %d)", sublen, SUBLEN);
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return;
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}
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else {
|
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proto_tree *subtree, *ti;
|
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const guint8 vad = tvb_get_guint8(tvb, offset);
|
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const guint8 *digest = tvb_get_ptr(tvb, offset + 1, DIGEST_LEN);
|
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int i;
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ti = proto_tree_add_text( tree, tvb, offset-2, sublen+2,
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"SPB Digest: Type: 0x%02x, Length: %d", subtype, sublen);
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subtree = proto_item_add_subtree(ti, ett_isis_hello_clv_mt_port_cap_spb_digest);
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|
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proto_tree_add_text( subtree, tvb, offset, 1,
|
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"V: %d, A: %d, D: %d",
|
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(vad >> 4) & 0x1,
|
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(vad >> 2) & 0x3,
|
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(vad >> 0) & 0x3);
|
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++offset;
|
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|
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/* Digest: */
|
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proto_tree_add_text( subtree, tvb, offset, DIGEST_LEN, "Digest:");
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for (i = 0 ; i < DIGEST_LEN ; i+= 8, offset += 8) {
|
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proto_tree_add_text( subtree, tvb, offset, 8,
|
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" %02x %02x %02x %02x %02x %02x %02x %02x",
|
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digest[i+0], digest[i+1], digest[i+2], digest[i+3],
|
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digest[i+4], digest[i+5], digest[i+6], digest[i+7]);
|
|
}
|
|
}
|
|
}
|
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|
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static void
|
|
dissect_hello_mt_port_cap_spb_bvid_tuples_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int subtype, int sublen)
|
|
{
|
|
proto_tree *subtree, *ti;
|
|
int subofs = offset;
|
|
|
|
ti = proto_tree_add_text( tree, tvb, offset-2, sublen+2,
|
|
"SPB Base Vlan Identifiers: Type: 0x%02x, Length: %d", subtype, sublen);
|
|
subtree = proto_item_add_subtree(ti, ett_isis_hello_clv_mt_port_cap_spb_bvid_tuples);
|
|
|
|
while (sublen > 0) {
|
|
if (sublen < 6) {
|
|
isis_dissect_unknown( tvb, subtree, offset,
|
|
"Short SPB BVID header entry (%d vs %d)", sublen, 6);
|
|
return;
|
|
}
|
|
else {
|
|
const guint8 *ect_tlv = tvb_get_ptr(tvb, subofs, 6);
|
|
guint16 word = (ect_tlv[4] << 8) | ect_tlv[5];
|
|
guint16 bvid = (word >> 4) & 0xfff;
|
|
int u_bit = (ect_tlv[5] & 8) ? 1 : 0;
|
|
int m_bit = (ect_tlv[5] & 4) ? 1 : 0;
|
|
proto_tree_add_text( subtree, tvb, subofs, 6,
|
|
"ECT: %02x-%02x-%02x-%02x, BVID: 0x%03x (%d),%s U: %d, M: %d",
|
|
ect_tlv[0], ect_tlv[1], ect_tlv[2], ect_tlv[3],
|
|
bvid, bvid,
|
|
( bvid < 10 ? " "
|
|
: bvid < 100 ? " "
|
|
: bvid < 1000 ? " "
|
|
: ""),
|
|
u_bit,
|
|
m_bit);
|
|
}
|
|
sublen -= 6;
|
|
subofs += 6;
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_hello_mt_port_cap_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length _U_, int length)
|
|
{
|
|
if (length >= 2) {
|
|
/* mtid */
|
|
guint16 mtid = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_text( tree, tvb, offset, 2,
|
|
"MTID: 0x%03x",
|
|
(mtid & 0xfff));
|
|
length -= 2;
|
|
offset += 2;
|
|
while (length >= 2) {
|
|
guint8 subtype = tvb_get_guint8(tvb, offset);
|
|
guint8 subtlvlen = tvb_get_guint8(tvb, offset+1);
|
|
length -= 2;
|
|
offset += 2;
|
|
if (subtlvlen > length) {
|
|
isis_dissect_unknown( tvb, tree, offset,
|
|
"Short type 0x%02x TLV (%d vs %d)", subtype, subtlvlen, length);
|
|
return;
|
|
}
|
|
if (subtype == 0x04) { /* SPB MCID */
|
|
dissect_hello_mt_port_cap_spb_mcid_clv(tvb, tree, offset, subtype, subtlvlen);
|
|
}
|
|
else if (subtype == 0x05) { /* SPB Digest */
|
|
dissect_hello_mt_port_cap_spb_digest_clv(tvb, tree, offset, subtype, subtlvlen);
|
|
}
|
|
else if (subtype == 0x06) { /* SPB BVID Tuples */
|
|
dissect_hello_mt_port_cap_spb_bvid_tuples_clv(tvb, tree, offset, subtype, subtlvlen);
|
|
}
|
|
else {
|
|
isis_dissect_unknown( tvb, tree, offset,
|
|
"Unknown SubTlv: Type: 0x%02x, Length: %d", subtype, subtlvlen);
|
|
}
|
|
length -= subtlvlen;
|
|
offset += subtlvlen;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The Restart CLV is documented in RFC 3847 (Restart Signaling for
|
|
* Intermediate System to Intermediate System). The CLV looks like this
|
|
*
|
|
* Type 211
|
|
* Length # of octets in the value field (1 to (3 + ID Length))
|
|
* Value
|
|
*
|
|
* No. of octets
|
|
* +-----------------------+
|
|
* | Flags | 1
|
|
* +-----------------------+
|
|
* | Remaining Time | 2
|
|
* +-----------------------+
|
|
* | Restarting Neighbor ID| ID Length
|
|
* +-----------------------+
|
|
*
|
|
* Flags (1 octet)
|
|
*
|
|
* 0 1 2 3 4 5 6 7
|
|
* +--+--+--+--+--+--+--+--+
|
|
* | Reserved |SA|RA|RR|
|
|
* +--+--+--+--+--+--+--+--+
|
|
*
|
|
* RR - Restart Request
|
|
* RA - Restart Acknowledgement
|
|
* SA - Suppress adjacency advertisement
|
|
*
|
|
* The Remaining Time and Restarting Neighbor ID fields are only required when
|
|
* the RA flag is set. The Flags field is always required.
|
|
*
|
|
*/
|
|
/*
|
|
* Name: dissect_hello_restart_clv()
|
|
*
|
|
* Description:
|
|
* Decode for a restart clv - only found in IIHs
|
|
* hence no call in the common clv dissector
|
|
*
|
|
*/
|
|
|
|
static void
|
|
dissect_hello_restart_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length, int length)
|
|
{
|
|
int restart_options=0;
|
|
proto_tree *flags_tree;
|
|
proto_item *restart_flags_item;
|
|
proto_item *hold_time_item;
|
|
const char *sep;
|
|
const guint8 *neighbor_id;
|
|
|
|
if (length >= 1) {
|
|
restart_options = tvb_get_guint8(tvb, offset);
|
|
restart_flags_item = proto_tree_add_uint ( tree, hf_isis_hello_clv_restart_flags,
|
|
tvb, offset, 1, restart_options);
|
|
flags_tree = proto_item_add_subtree(restart_flags_item, ett_isis_hello_clv_restart_flags);
|
|
proto_tree_add_boolean (flags_tree, hf_isis_hello_clv_restart_flags_sa,
|
|
tvb, offset, 1, restart_options );
|
|
proto_tree_add_boolean (flags_tree, hf_isis_hello_clv_restart_flags_ra,
|
|
tvb, offset, 1, restart_options );
|
|
proto_tree_add_boolean (flags_tree, hf_isis_hello_clv_restart_flags_rr,
|
|
tvb, offset, 1, restart_options );
|
|
|
|
/* Append an indication of which flags are set in the restart
|
|
* options
|
|
*/
|
|
sep = initial_sep;
|
|
APPEND_BOOLEAN_FLAG(ISIS_MASK_RESTART_SA(restart_options), restart_flags_item, "%sSA");
|
|
APPEND_BOOLEAN_FLAG(ISIS_MASK_RESTART_RA(restart_options), restart_flags_item, "%sRA");
|
|
APPEND_BOOLEAN_FLAG(ISIS_MASK_RESTART_RR(restart_options), restart_flags_item, "%sRR");
|
|
if (sep != initial_sep)
|
|
{
|
|
proto_item_append_text (restart_flags_item, ")");
|
|
}
|
|
|
|
}
|
|
|
|
/* The Remaining Time field should only be present if the RA flag is
|
|
* set
|
|
*/
|
|
if (length >= 3 && ISIS_MASK_RESTART_RA(restart_options)) {
|
|
hold_time_item = proto_tree_add_uint ( tree, hf_isis_hello_clv_restart_remain_time,
|
|
tvb, offset+1, 2, tvb_get_ntohs(tvb, offset+1) );
|
|
proto_item_append_text( hold_time_item, "s" );
|
|
}
|
|
|
|
/* The Restarting Neighbor ID should only be present if the RA flag is
|
|
* set.
|
|
*/
|
|
if (length >= 3 + id_length && ISIS_MASK_RESTART_RA(restart_options)) {
|
|
neighbor_id = tvb_get_ptr(tvb, offset+3, id_length);
|
|
proto_tree_add_bytes_format( tree,
|
|
hf_isis_hello_clv_restart_neighbor, tvb, offset+3,
|
|
id_length, neighbor_id, "Restarting Neighbor ID: %s",
|
|
print_system_id( neighbor_id, id_length ) );
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Name: dissect_hello_nlpid_clv()
|
|
*
|
|
* Description:
|
|
* Decode for a hello packets NLPID clv. Calls into the
|
|
* clv common one.
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : proto tree to build on (may be null)
|
|
* int : current offset into packet data
|
|
* int : length of IDs in packet.
|
|
* int : length of this clv
|
|
*
|
|
* Output:
|
|
* void, will modify proto_tree if not null.
|
|
*/
|
|
static void
|
|
dissect_hello_nlpid_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length _U_, int length)
|
|
{
|
|
isis_dissect_nlpid_clv(tvb, tree, offset, length);
|
|
}
|
|
|
|
/*
|
|
* Name: dissect_hello_mt_clv()
|
|
*
|
|
* Description:
|
|
* Decode for a hello packets Multi Topology clv. Calls into the
|
|
* clv common one.
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : proto tree to build on (may be null)
|
|
* int : current offset into packet data
|
|
* int : length of IDs in packet.
|
|
* int : length of this clv
|
|
*
|
|
* Output:
|
|
* void, will modify proto_tree if not null.
|
|
*/
|
|
|
|
static void
|
|
dissect_hello_mt_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length _U_, int length)
|
|
{
|
|
isis_dissect_mt_clv(tvb, tree, offset, length,
|
|
hf_isis_hello_clv_mt );
|
|
}
|
|
|
|
/*
|
|
* Name: dissect_hello_ip_int_addr_clv()
|
|
*
|
|
* Description:
|
|
* Decode for a hello packets ip interface addr clv. Calls into the
|
|
* clv common one.
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : proto tree to build on (may be null)
|
|
* int : current offset into packet data
|
|
* int : length of IDs in packet.
|
|
* int : length of this clv
|
|
*
|
|
* Output:
|
|
* void, will modify proto_tree if not null.
|
|
*/
|
|
static void
|
|
dissect_hello_ip_int_addr_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length _U_, int length)
|
|
{
|
|
isis_dissect_ip_int_clv(tvb, tree, offset, length,
|
|
hf_isis_hello_clv_ipv4_int_addr );
|
|
}
|
|
|
|
/*
|
|
* Name: dissect_hello_ipv6_int_addr_clv()
|
|
*
|
|
* Description:
|
|
* Decode for a hello packets ipv6 interface addr clv. Calls into the
|
|
* clv common one.
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : proto tree to build on (may be null)
|
|
* int : current offset into packet data
|
|
* int : length of IDs in packet.
|
|
* int : length of this clv
|
|
*
|
|
* Output:
|
|
* void, will modify proto_tree if not null.
|
|
*/
|
|
static void
|
|
dissect_hello_ipv6_int_addr_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length _U_, int length)
|
|
{
|
|
isis_dissect_ipv6_int_clv(tvb, tree, offset, length,
|
|
hf_isis_hello_clv_ipv6_int_addr );
|
|
}
|
|
|
|
/*
|
|
* Name: dissect_hello_authentication_clv()
|
|
*
|
|
* Description:
|
|
* Decode for a hello packets authenticaion clv.
|
|
* Calls into the CLV common one.
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : proto tree to build on (may be null)
|
|
* int : current offset into packet data
|
|
* int : length of IDs in packet.
|
|
* int : length of this clv
|
|
*
|
|
* Output:
|
|
* void, will modify proto_tree if not null.
|
|
*/
|
|
static void
|
|
dissect_hello_authentication_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length _U_, int length)
|
|
{
|
|
isis_dissect_authentication_clv(tvb, tree, offset, length);
|
|
}
|
|
|
|
/*
|
|
* Name: dissect_hello_ip_authentication_clv()
|
|
*
|
|
* Description:
|
|
* Decode for a hello packets IP authenticaion clv.
|
|
* Calls into the CLV common one.
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : proto tree to build on (may be null)
|
|
* int : current offset into packet data
|
|
* int : length of IDs in packet.
|
|
* int : length of this clv
|
|
*
|
|
* Output:
|
|
* void, will modify proto_tree if not null.
|
|
*/
|
|
static void
|
|
dissect_hello_ip_authentication_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length _U_, int length)
|
|
{
|
|
isis_dissect_ip_authentication_clv(tvb, tree, offset, length);
|
|
}
|
|
|
|
/*
|
|
* Name: dissect_hello_checksum_clv()
|
|
*
|
|
* Description:
|
|
* dump and verify the optional checksum in TLV 12
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : protocol display tree to fill out. May be NULL
|
|
* int : offset into packet data where we are.
|
|
* int : length of clv we are decoding
|
|
*
|
|
* Output:
|
|
* void, but we will add to proto tree if !NULL.
|
|
*/
|
|
|
|
static void
|
|
dissect_hello_checksum_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length _U_, int length) {
|
|
|
|
guint16 pdu_length,checksum, cacl_checksum=0;
|
|
|
|
if (tree) {
|
|
if ( length != 2 ) {
|
|
proto_tree_add_text ( tree, tvb, offset, length,
|
|
"incorrect checksum length (%u), should be (2)", length );
|
|
return;
|
|
}
|
|
|
|
checksum = tvb_get_ntohs(tvb, offset);
|
|
|
|
/* the check_and_get_checksum() function needs to know how big
|
|
* the packet is. we can either pass through the pdu-len through several layers
|
|
* of dissectors and wrappers or extract the PDU length field from the PDU specific header
|
|
* which is offseted 17 bytes in IIHs (relative to the beginning of the IS-IS packet) */
|
|
|
|
pdu_length = tvb_get_ntohs(tvb, 17);
|
|
|
|
/* unlike the LSP checksum verification which starts at an offset of 12 we start at offset 0*/
|
|
switch (check_and_get_checksum(tvb, 0, pdu_length, checksum, offset, &cacl_checksum))
|
|
{
|
|
|
|
case NO_CKSUM :
|
|
proto_tree_add_text ( tree, tvb, offset, length,
|
|
"Checksum: 0x%04x [unused]", checksum);
|
|
break;
|
|
case DATA_MISSING :
|
|
isis_dissect_unknown(tvb, tree, offset,
|
|
"[packet length %d went beyond packet]",
|
|
tvb_length(tvb));
|
|
break;
|
|
case CKSUM_NOT_OK :
|
|
proto_tree_add_text ( tree, tvb, offset, length,
|
|
"Checksum: 0x%04x [incorrect, should be 0x%04x]",
|
|
checksum,
|
|
cacl_checksum);
|
|
break;
|
|
case CKSUM_OK :
|
|
proto_tree_add_text ( tree, tvb, offset, length,
|
|
"Checksum: 0x%04x [correct]", checksum);
|
|
break;
|
|
default :
|
|
g_message("'check_and_get_checksum' returned an invalid value");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Name: dissect_hello_area_address_clv()
|
|
*
|
|
* Description:
|
|
* Decode for a hello packets area address clv.
|
|
* Calls into the CLV common one.
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : proto tree to build on (may be null)
|
|
* int : current offset into packet data
|
|
* int : length of IDs in packet.
|
|
* int : length of this clv
|
|
*
|
|
* Output:
|
|
* void, will modify proto_tree if not null.
|
|
*/
|
|
static void
|
|
dissect_hello_area_address_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length _U_, int length)
|
|
{
|
|
isis_dissect_area_address_clv(tvb, tree, offset, length);
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
dissect_hello_ptp_adj_clv(tvbuff_t *tvb,
|
|
proto_tree *tree, int offset, int id_length, int length)
|
|
{
|
|
static const value_string adj_state_vals[] = {
|
|
{ 0, "Up" },
|
|
{ 1, "Initializing" },
|
|
{ 2, "Down" },
|
|
{ 0, NULL }
|
|
};
|
|
guint8 adj_state;
|
|
const char *adj_state_str;
|
|
|
|
adj_state = tvb_get_guint8(tvb, offset);
|
|
adj_state_str = val_to_str(adj_state, adj_state_vals, "Unknown (%u)");
|
|
switch(length) {
|
|
case 1:
|
|
proto_tree_add_text ( tree, tvb, offset, 1,
|
|
"Adjacency State: %s", adj_state_str );
|
|
break;
|
|
case 5:
|
|
proto_tree_add_text ( tree, tvb, offset, 1,
|
|
"Adjacency State: %s", adj_state_str );
|
|
proto_tree_add_text ( tree, tvb, offset+1, 4,
|
|
"Extended Local circuit ID: 0x%08x", tvb_get_ntohl(tvb, offset+1) );
|
|
break;
|
|
case 11:
|
|
proto_tree_add_text ( tree, tvb, offset, 1,
|
|
"Adjacency State: %s", adj_state_str );
|
|
proto_tree_add_text ( tree, tvb, offset+1, 4,
|
|
"Extended Local circuit ID: 0x%08x", tvb_get_ntohl(tvb, offset+1) );
|
|
proto_tree_add_text ( tree, tvb, offset+5, id_length,
|
|
"Neighbor SystemID: %s",
|
|
print_system_id( tvb_get_ptr(tvb, offset+5, id_length), id_length ) );
|
|
break;
|
|
case 15:
|
|
proto_tree_add_text ( tree, tvb, offset, 1,
|
|
"Adjacency State: %s", adj_state_str );
|
|
proto_tree_add_text ( tree, tvb, offset+1, 4,
|
|
"Extended Local circuit ID: 0x%08x", tvb_get_ntohl(tvb, offset+1) );
|
|
proto_tree_add_text ( tree, tvb, offset+5, id_length,
|
|
"Neighbor SystemID: %s",
|
|
print_system_id( tvb_get_ptr(tvb, offset+5, id_length), id_length ) );
|
|
proto_tree_add_text ( tree, tvb, offset+5+id_length, 4,
|
|
"Neighbor Extended Local circuit ID: 0x%08x",
|
|
tvb_get_ntohl(tvb, offset+5+id_length) );
|
|
break;
|
|
default:
|
|
isis_dissect_unknown(tvb, tree, offset,
|
|
"malformed TLV (%d vs 1,5,11,15)", length );
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Name: isis_dissect_is_neighbors_clv()
|
|
*
|
|
* Description:
|
|
* Take apart a IS neighbor packet. A neighbor is n 6 byte packets.
|
|
* (they tend to be an 802.3 MAC address, but it's not required).
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : protocol display tree to fill out. May be NULL
|
|
* int : offset into packet data where we are.
|
|
* int : length of IDs in packet.
|
|
* int : length of clv we are decoding
|
|
*
|
|
* Output:
|
|
* void, but we will add to proto tree if !NULL.
|
|
*/
|
|
static void
|
|
dissect_hello_is_neighbors_clv(tvbuff_t *tvb, proto_tree *tree, int offset,
|
|
int id_length _U_, int length)
|
|
{
|
|
while ( length > 0 ) {
|
|
if (length<6) {
|
|
isis_dissect_unknown(tvb, tree, offset,
|
|
"short is neighbor (%d vs 6)", length );
|
|
return;
|
|
}
|
|
/*
|
|
* Lets turn the area address into "standard" 0000.0000.etc
|
|
* format string.
|
|
*/
|
|
if ( tree ) {
|
|
proto_tree_add_text ( tree, tvb, offset, 6,
|
|
"IS Neighbor: %s", get_ether_name( tvb_get_ptr(tvb, offset, 6)) );
|
|
}
|
|
offset += 6;
|
|
length -= 6;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Name: dissect_hello_padding_clv()
|
|
*
|
|
* Description:
|
|
* Decode for a hello packet's padding clv. Padding does nothing,
|
|
* so we just return.
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : proto tree to build on (may be null)
|
|
* int : current offset into packet data
|
|
* int : length of IDs in packet.
|
|
* int : length of this clv
|
|
*
|
|
* Output:
|
|
* void
|
|
*/
|
|
static void
|
|
dissect_hello_padding_clv(tvbuff_t *tvb _U_, proto_tree *tree _U_, int offset _U_,
|
|
int id_length _U_, int length _U_)
|
|
{
|
|
/* nothing to do here! */
|
|
}
|
|
|
|
|
|
/*
|
|
* Name: isis_dissect_isis_hello()
|
|
*
|
|
* Description:
|
|
* This procedure rips apart the various types of ISIS hellos. L1H and
|
|
* L2H's are identical for the most part, while the PTP hello has
|
|
* a shorter header.
|
|
*
|
|
* Input:
|
|
* tvbuff_t * : tvbuffer for packet data
|
|
* proto_tree * : protocol display tree to add to. May be NULL.
|
|
* int offset : our offset into packet data.
|
|
* int : hello type, a la packet-isis.h ISIS_TYPE_* values
|
|
* int : header length of packet.
|
|
* int : length of IDs in packet.
|
|
*
|
|
* Output:
|
|
* void, will modify proto_tree if not NULL.
|
|
*/
|
|
void
|
|
isis_dissect_isis_hello(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset,
|
|
int hello_type, int header_length, int id_length)
|
|
{
|
|
proto_item *ti;
|
|
proto_tree *hello_tree = NULL;
|
|
int len;
|
|
guint8 octet;
|
|
const guint8 *source_id;
|
|
guint16 pdu_length;
|
|
const guint8 *lan_id;
|
|
|
|
if (tree) {
|
|
ti = proto_tree_add_text(tree, tvb, offset, -1, "ISIS HELLO");
|
|
hello_tree = proto_item_add_subtree(ti, ett_isis_hello);
|
|
octet = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint_format(hello_tree,
|
|
hf_isis_hello_circuit_reserved,
|
|
tvb, offset, 1, octet,
|
|
"Circuit type : %s, reserved(0x%02x == 0)",
|
|
val_to_str(octet&ISIS_HELLO_CTYPE_MASK,
|
|
isis_hello_circuit_type_vals,
|
|
"Unknown (0x%x)"),
|
|
octet&ISIS_HELLO_CT_RESERVED_MASK
|
|
);
|
|
}
|
|
offset += 1;
|
|
|
|
if (tree) {
|
|
source_id = tvb_get_ptr(tvb, offset, id_length);
|
|
proto_tree_add_bytes_format(hello_tree, hf_isis_hello_source_id, tvb,
|
|
offset, id_length, source_id,
|
|
"System-ID {Sender of PDU} : %s",
|
|
print_system_id( source_id, id_length ) );
|
|
}
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, ", System-ID: %s",
|
|
print_system_id( tvb_get_ptr(tvb, offset, id_length), id_length ) );
|
|
|
|
offset += id_length;
|
|
|
|
if (tree) {
|
|
proto_tree_add_item(hello_tree, hf_isis_hello_holding_timer, tvb,
|
|
offset, 2, ENC_BIG_ENDIAN);
|
|
}
|
|
offset += 2;
|
|
|
|
pdu_length = tvb_get_ntohs(tvb, offset);
|
|
if (tree) {
|
|
proto_tree_add_uint(hello_tree, hf_isis_hello_pdu_length, tvb,
|
|
offset, 2, pdu_length);
|
|
}
|
|
offset += 2;
|
|
|
|
if (hello_type == ISIS_TYPE_PTP_HELLO) {
|
|
if (tree) {
|
|
proto_tree_add_item(hello_tree, hf_isis_hello_local_circuit_id, tvb,
|
|
offset, 1, ENC_BIG_ENDIAN );
|
|
}
|
|
offset += 1;
|
|
} else {
|
|
if (tree) {
|
|
octet = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint_format(hello_tree, hf_isis_hello_priority_reserved, tvb,
|
|
offset, 1, octet,
|
|
"Priority : %d, reserved(0x%02x == 0)",
|
|
octet&ISIS_HELLO_PRIORITY_MASK,
|
|
octet&ISIS_HELLO_P_RESERVED_MASK );
|
|
}
|
|
offset += 1;
|
|
|
|
if (tree) {
|
|
lan_id = tvb_get_ptr(tvb, offset, id_length+1);
|
|
proto_tree_add_bytes_format(hello_tree, hf_isis_hello_lan_id, tvb,
|
|
offset, id_length + 1, lan_id,
|
|
"System-ID {Designated IS} : %s",
|
|
print_system_id( lan_id, id_length + 1 ) );
|
|
}
|
|
offset += id_length + 1;
|
|
}
|
|
|
|
len = pdu_length;
|
|
len -= header_length;
|
|
if (len < 0) {
|
|
isis_dissect_unknown(tvb, tree, offset,
|
|
"Packet header length %d went beyond packet",
|
|
header_length );
|
|
return;
|
|
}
|
|
/*
|
|
* Now, we need to decode our CLVs. We need to pass in
|
|
* our list of valid ones!
|
|
*/
|
|
if (hello_type == ISIS_TYPE_L1_HELLO){
|
|
isis_dissect_clvs(tvb, hello_tree, offset,
|
|
clv_l1_hello_opts, len, id_length,
|
|
ett_isis_hello_clv_unknown);
|
|
} else if (hello_type == ISIS_TYPE_L2_HELLO) {
|
|
isis_dissect_clvs(tvb, hello_tree, offset,
|
|
clv_l2_hello_opts, len, id_length,
|
|
ett_isis_hello_clv_unknown);
|
|
} else {
|
|
isis_dissect_clvs(tvb, hello_tree, offset,
|
|
clv_ptp_hello_opts, len, id_length,
|
|
ett_isis_hello_clv_unknown);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Name: isis_register_hello()
|
|
*
|
|
* Description:
|
|
* Register our protocol sub-sets with protocol manager.
|
|
*
|
|
* Input:
|
|
* int : protocol index for the ISIS protocol
|
|
*
|
|
* Output:
|
|
* void
|
|
*/
|
|
void
|
|
isis_register_hello(int proto_isis) {
|
|
static hf_register_info hf[] = {
|
|
{ &hf_isis_hello_circuit_reserved,
|
|
{ "Circuit type", "isis.hello.circuit_type",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{ &hf_isis_hello_source_id,
|
|
{ "SystemID{ Sender of PDU }", "isis.hello.source_id",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{ &hf_isis_hello_holding_timer,
|
|
{ "Holding timer", "isis.hello.holding_timer",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{ &hf_isis_hello_pdu_length,
|
|
{ "PDU length", "isis.hello.pdu_length",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{ &hf_isis_hello_priority_reserved,
|
|
{ "Priority", "isis.hello.priority",
|
|
FT_UINT8, BASE_DEC, NULL, ISIS_HELLO_P_RESERVED_MASK, NULL, HFILL }},
|
|
|
|
{ &hf_isis_hello_lan_id,
|
|
{ "SystemID{ Designated IS }", "isis.hello.lan_id",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{ &hf_isis_hello_local_circuit_id,
|
|
{ "Local circuit ID", "isis.hello.local_circuit_id",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{ &hf_isis_hello_clv_ipv4_int_addr,
|
|
{ "IPv4 interface address", "isis.hello.clv_ipv4_int_addr",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{ &hf_isis_hello_clv_ipv6_int_addr,
|
|
{ "IPv6 interface address", "isis.hello.clv_ipv6_int_addr",
|
|
FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
|
|
#if 0
|
|
{ &hf_isis_hello_clv_ptp_adj,
|
|
{ "Point-to-point Adjacency", "isis.hello.clv_ptp_adj",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
|
|
#endif
|
|
|
|
{ &hf_isis_hello_clv_mt,
|
|
{ "MT-ID", "isis.hello.clv_mt",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{ &hf_isis_hello_clv_restart_flags,
|
|
{ "Restart Signaling Flags", "isis.hello.clv_restart_flags",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{ &hf_isis_hello_clv_restart_flags_rr,
|
|
{ "Restart Request", "isis.hello.clv_restart_flags.rr",
|
|
FT_BOOLEAN, 8, TFS(&tfs_true_false), ISIS_RESTART_RR,
|
|
"When set, the router is beginning a graceful restart", HFILL }},
|
|
|
|
{ &hf_isis_hello_clv_restart_flags_ra,
|
|
{ "Restart Acknowledgment", "isis.hello.clv_restart_flags.ra",
|
|
FT_BOOLEAN, 8, TFS(&tfs_true_false), ISIS_RESTART_RA,
|
|
"When set, the router is willing to enter helper mode", HFILL }},
|
|
|
|
{ &hf_isis_hello_clv_restart_flags_sa,
|
|
{ "Suppress Adjacency", "isis.hello.clv_restart_flags.sa",
|
|
FT_BOOLEAN, 8, TFS(&tfs_true_false), ISIS_RESTART_SA,
|
|
"When set, the router is starting as opposed to restarting", HFILL }},
|
|
|
|
{ &hf_isis_hello_clv_restart_remain_time,
|
|
{ "Remaining holding time", "isis.hello.clv_restart.remain_time",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"How long the helper router will maintain the existing adjacency", HFILL }},
|
|
|
|
{ &hf_isis_hello_clv_restart_neighbor,
|
|
{ "Restarting Neighbor ID", "isis.hello.clv_restart.neighbor",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"The System ID of the restarting neighbor", HFILL }}
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_isis_hello,
|
|
&ett_isis_hello_clv_area_addr,
|
|
&ett_isis_hello_clv_is_neighbors,
|
|
&ett_isis_hello_clv_padding,
|
|
&ett_isis_hello_clv_unknown,
|
|
&ett_isis_hello_clv_nlpid,
|
|
&ett_isis_hello_clv_authentication,
|
|
&ett_isis_hello_clv_ip_authentication,
|
|
&ett_isis_hello_clv_ipv4_int_addr,
|
|
&ett_isis_hello_clv_ipv6_int_addr,
|
|
&ett_isis_hello_clv_ptp_adj,
|
|
&ett_isis_hello_clv_mt,
|
|
&ett_isis_hello_clv_restart,
|
|
&ett_isis_hello_clv_restart_flags,
|
|
&ett_isis_hello_clv_mt_port_cap,
|
|
&ett_isis_hello_clv_mt_port_cap_spb_mcid,
|
|
&ett_isis_hello_clv_mt_port_cap_spb_aux_mcid,
|
|
&ett_isis_hello_clv_mt_port_cap_spb_digest,
|
|
&ett_isis_hello_clv_mt_port_cap_spb_bvid_tuples,
|
|
&ett_isis_hello_clv_checksum
|
|
};
|
|
|
|
proto_register_field_array(proto_isis, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|