1054 lines
35 KiB
C
1054 lines
35 KiB
C
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/* packet-cfm.c
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* Routines for CFM EOAM (IEEE 802.1ag) dissection
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* Copyright 2007, Keith Mercer <keith.mercer@alcatel-lucent.com>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* 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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/* This code is based on the IEEE P802.1ag/D8.1 document, which is not formally
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* released at the time of this dissector development, and may change requiring
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* additional modifications to this code.
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*
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* The CFM dissector will recognize ITU Y.1731 opcodes but will not be
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* dissected, with the exception of AIS, until a future version of this code.
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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/prefs.h>
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#include <stdio.h>
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#include <glib.h>
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#include <string.h>
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#include <epan/etypes.h>
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#include "packet-cfm.h"
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/* forward reference */
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static void dissect_cfm(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static int proto_cfm = -1;
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static dissector_handle_t cfm_handle;
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static const value_string opcodetypenames[] = {
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{ IEE8021, "Reserved for IEE 802.1" },
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{ CCM, "Continuity Check Message (CCM)" },
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{ LBR, "Loopback Reply (LBR)" },
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{ LBM, "Loopback Message (LBM)" },
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{ LTR, "Linktrace Reply (LTR)" },
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{ LTM, "Linktrace Message (LTM)" },
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{ AIS, "Alarm Indication Signal (AIS)" },
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{ LCK, "Lock Signal (LCK)" },
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{ TST, "Test Signal (TST)" },
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{ APS, "Automatic Protection Switching (APS)" },
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{ MCC, "Maintenance Communication Channel (MCC)" },
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{ LMM, "Loss Measurement Message (LMM)" },
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{ LMR, "Loss Measurement Reply (LMR)" },
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{ ODM, "One Way Delay Measurement (1DM)" },
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{ DMM, "Delay Measurement Message (DMM)" },
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{ DMR, "Delay Measurement Reply (DMR)" },
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{ EXM, "Experimental OAM Message (EXM)" },
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{ EXR, "Experimental OAM Reply (EXR)" },
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{ VSM, "Vendor Specific Message (VSM)" },
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{ VSR, "Vendor Specific Reply (VSR)" },
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{ 0, NULL }
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};
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static const value_string CCM_IntervalFieldEncoding[] = {
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{ 0, "invalid" },
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{ 1, "Trans Int 3.33ms, max Lifetime 11.66ms, min Lifetime 10.83ms" },
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{ 2, "Trans Int 10ms, max Lifetime 35ms, min Lifetime 32.5ms" },
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{ 3, "Trans Int 100ms, max Lifetime 350ms, min Lifetime 325ms" },
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{ 4, "Trans Int 1ms, max Lifetime 3.5s, min Lifetime 3.25s" },
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{ 5, "Trans Int 10s, max Lifetime 35s, min Lifetime 32.5s" },
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{ 6, "Trans Int 1min, max Lifetime 3.5min, min Lifetime 3.25min" },
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{ 7, "Trans Int 10min, max Lifetime 35min, min Lifetime 32.5min" },
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{ 0, NULL }
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};
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static const value_string mdnameformattypes[] = {
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{ 0, "Reserved for IEEE 802.1" },
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{ 1, "No Maintenance Domain Name preset" },
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{ 2, "RFC1035 DNS Name" },
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{ 3, "MAC address + 2-octet integer" },
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{ 4, "Character String" },
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{ 0, NULL }
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};
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static const value_string manameformattypes[] = {
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{ 0, "Reserved for IEEE 802.1" },
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{ 1, "Primary VID" },
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{ 2, "Character String" },
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{ 3, "2-octet integer" },
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{ 4, "RFC 2685 VPN ID" },
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{ 0, NULL }
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};
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static const value_string relayactiontypes[] = {
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{ 1, "RlyHit" },
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{ 2, "RlyFDB" },
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{ 3, "RlyMPDB" },
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{ 0, NULL }
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};
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static const value_string aislckperiodtypes[] = {
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{ 0, "Invalid Value for AIS/LCK PDU's" },
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{ 1, "Invalid Value for AIS/LCK PDU's" },
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{ 2, "Invalid Value for AIS/LCK PDU's" },
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{ 3, "Invalid Value for AIS/LCK PDU's" },
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{ 4, "1 frame per second" },
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{ 5, "Invalid Value for AIS/LCK PDU's" },
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{ 6, "1 frame per minute" },
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{ 7, "Invalid Value for AIS/LCK PDU's" },
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{ 0, NULL }
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};
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static const value_string tlvtypefieldvalues[] = {
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{ END_TLV , "End TLV" },
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{ SENDER_ID_TLV , "Sender ID TLV" },
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{ PORT_STAT_TLV , "Port Status TLV" },
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{ DATA_TLV , "Data TLV" },
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{ INTERF_STAT_TLV , "Interface Status TLV" },
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{ REPLY_ING_TLV , "Reply Ingress TLV" },
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{ REPLY_EGR_TLV , "Reply Egress TLV" },
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{ LTM_EGR_ID_TLV , "LTM Egress Identifier TLV" },
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{ LTR_EGR_ID_TLV , "LTR Egress Identifier TLV" },
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{ ORG_SPEC_TLV , "Organizational-Specific TLV" },
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{ 0 , NULL }
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};
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static const value_string portstatTLVvalues[] = {
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{ 1, "psBlocked" },
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{ 2, "psUp" },
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{ 0, NULL }
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};
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static const value_string interfacestatTLVvalues[] = {
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{ 1, "isUp" },
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{ 2, "isDown" },
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{ 3, "isTesting" },
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{ 4, "isUnknown" },
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{ 5, "isDormant" },
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{ 6, "isNotPresent" },
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{ 7, "isLowerLayerDown" },
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{ 0, NULL }
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};
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static const value_string replyingressTLVvalues[] = {
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{ 1, "IngOK" },
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{ 2, "IngDown" },
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{ 3, "IngBlocked" },
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{ 4, "IngVID" },
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{ 0, NULL }
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};
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static const value_string replyegressTLVvalues[] = {
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{ 1, "EgrOK" },
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{ 2, "EgrDown" },
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{ 3, "EgrBlocked" },
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{ 4, "EgrVID" },
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{ 0, NULL }
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};
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static int hf_cfm_md_level = -1;
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static int hf_cfm_version = -1;
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static int hf_cfm_opcode = -1;
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static int hf_cfm_flags = -1;
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static int hf_cfm_flags_RDI = -1;
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static int hf_cfm_flags_ccm_Reserved = -1;
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static int hf_cfm_flags_Interval = -1;
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static int hf_cfm_flags_UseFDBonly = -1;
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static int hf_cfm_flags_ltm_Reserved = -1;
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static int hf_cfm_flags_ltr_Reserved = -1;
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static int hf_cfm_flags_FwdYes = -1;
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static int hf_cfm_flags_TerminalMEP = -1;
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static int hf_cfm_first_tlv_offset = -1;
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static int hf_cfm_ccm_pdu = -1;
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static int hf_cfm_ccm_seq_number = -1;
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static int hf_cfm_ccm_ma_ep_id = -1;
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static int hf_cfm_ccm_maid = -1;
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static int hf_cfm_maid_md_name_format = -1;
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static int hf_cfm_maid_md_name_length = -1;
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static int hf_cfm_maid_md_name_string = -1;
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static int hf_cfm_maid_md_name_hex = -1;
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static int hf_cfm_maid_ma_name_format = -1;
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static int hf_cfm_maid_ma_name_length = -1;
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static int hf_cfm_maid_ma_name_string = -1;
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static int hf_cfm_maid_ma_name_hex = -1;
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static int hf_cfm_maid_padding = -1;
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static int hf_cfm_ccm_itu_t_y1731 = -1;
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static int hf_cfm_lbm_pdu = -1;
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static int hf_cfm_lb_transaction_id = -1;
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static int hf_cfm_lbr_pdu = -1;
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static int hf_cfm_ltm_pdu = -1;
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static int hf_cfm_lt_transaction_id = -1;
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static int hf_cfm_lt_ttl = -1;
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static int hf_cfm_ltm_orig_addr = -1;
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static int hf_cfm_ltm_targ_addr = -1;
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static int hf_cfm_ltr_pdu = -1;
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static int hf_cfm_ltr_relay_action = -1;
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static int hf_cfm_ais_pdu = -1;
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static int hf_cfm_flags_ais_lck_Reserved = -1;
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static int hf_cfm_flags_ais_lck_Period = -1;
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static int hf_cfm_all_tlvs = -1;
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static int hf_cfm_tlv_type = -1;
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static int hf_cfm_tlv_length = -1;
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static int hf_tlv_chassis_id_length = -1;
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static int hf_tlv_chassis_id_subtype = -1;
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static int hf_tlv_chassis_id = -1;
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static int hf_tlv_ma_domain_length = -1;
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static int hf_tlv_ma_domain = -1;
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static int hf_tlv_management_addr_length = -1;
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static int hf_tlv_management_addr = -1;
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static int hf_tlv_port_status_value = -1;
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static int hf_tlv_data_value = -1;
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static int hf_tlv_interface_status_value = -1;
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static int hf_tlv_reply_ingress_action = -1;
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static int hf_tlv_reply_ingress_mac_address = -1;
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static int hf_tlv_reply_ing_egr_portid_length = -1;
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static int hf_tlv_reply_ing_egr_portid_subtype = -1;
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static int hf_tlv_reply_ing_egr_portid = -1;
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static int hf_tlv_reply_egress_action = -1;
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static int hf_tlv_reply_egress_mac_address = -1;
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static int hf_tlv_ltr_egress_last_id = -1;
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static int hf_tlv_ltr_egress_next_id = -1;
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static int hf_tlv_ltm_egress_id_mac = -1;
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static int hf_tlv_ltm_egress_id_unique_identifier = -1;
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static int hf_tlv_org_spec_oui = -1;
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static int hf_tlv_org_spec_subtype = -1;
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static int hf_tlv_org_spec_value = -1;
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static gint ett_cfm = -1;
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static gint ett_cfm_ccm = -1;
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static gint ett_cfm_flags = -1;
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static gint ett_cfm_ccm_maid = -1;
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static gint ett_cfm_lbm = -1;
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static gint ett_cfm_lbr = -1;
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static gint ett_cfm_ltm = -1;
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static gint ett_cfm_ltr = -1;
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static gint ett_cfm_ais = -1;
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static gint ett_cfm_all_tlvs = -1;
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static gint ett_cfm_tlv = -1;
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/* Register CFM EOAM protocol */
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void proto_register_cfm(void)
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{
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static hf_register_info hf[] = {
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{ &hf_cfm_md_level,
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{ "CFM MD Level", "cfm.md.level", FT_UINT8,
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BASE_DEC, NULL, 0xe0, NULL, HFILL }
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},
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{ &hf_cfm_version,
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{ "CFM Version", "cfm.version", FT_UINT8,
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BASE_DEC, NULL, 0x1f, NULL, HFILL }
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},
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{ &hf_cfm_opcode,
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{ "CFM OpCode", "cfm.opcode", FT_UINT8,
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BASE_DEC, VALS(opcodetypenames), 0x0, NULL, HFILL }
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},
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/* CFM CCM*/
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{ &hf_cfm_ccm_pdu,
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{ "CFM CCM PDU", "cfm.ccm.pdu", FT_NONE,
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BASE_NONE, NULL, 0x0, NULL, HFILL }
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},
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{ &hf_cfm_flags,
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{ "Flags", "cfm.flags", FT_UINT8,
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BASE_HEX, NULL, 0x0, NULL, HFILL }
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},
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{ &hf_cfm_flags_RDI,
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{ "RDI", "cfm.flags.rdi", FT_UINT8,
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BASE_DEC, NULL, 0x80, NULL, HFILL }
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},
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{ &hf_cfm_flags_ccm_Reserved,
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{ "Reserved", "cfm.flags.ccm.reserved", FT_UINT8,
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BASE_DEC, NULL, 0x78, NULL, HFILL }
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},
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{ &hf_cfm_flags_Interval,
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{ "Interval Field", "cfm.flags.interval", FT_UINT8,
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BASE_DEC, VALS(CCM_IntervalFieldEncoding), 0x07, NULL, HFILL }
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},
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{ &hf_cfm_first_tlv_offset,
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{ "First TLV Offset", "cfm.first.tlv.offset", FT_UINT8,
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BASE_DEC, NULL, 0x0, NULL, HFILL }
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},
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{ &hf_cfm_ccm_seq_number,
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{ "Sequence Number", "cfm.ccm.seq.num", FT_UINT32,
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BASE_DEC, NULL, 0x0, NULL, HFILL }
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},
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{ &hf_cfm_ccm_ma_ep_id,
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{ "Maintenance Association End Point Identifier", "cfm.ccm.ma.ep.id",
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FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }
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},
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{ &hf_cfm_ccm_maid,
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{ "Maintenance Association Identifier", "cfm.ccm.maid", FT_NONE,
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BASE_NONE, NULL, 0x0, NULL, HFILL }
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},
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{ &hf_cfm_maid_md_name_format,
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{ "MD Name Format", "cfm.maid.md.name.format", FT_UINT8,
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BASE_DEC, VALS(mdnameformattypes), 0x0, NULL, HFILL }
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},
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{ &hf_cfm_maid_md_name_length,
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{ "MD Name Length", "cfm.maid.md.name.length", FT_UINT8,
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|
|
BASE_DEC, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_maid_md_name_string,
|
||
|
|
{ "MD Name", "cfm.maid.md.name", FT_STRING,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_maid_md_name_hex,
|
||
|
|
{ "MD Name", "cfm.maid.md.name", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_maid_ma_name_format,
|
||
|
|
{ "Short MA Name Format", "cfm.maid.ma.name.format", FT_UINT8,
|
||
|
|
BASE_DEC, VALS(manameformattypes), 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_maid_ma_name_length,
|
||
|
|
{ "Short MA Name Length", "cfm.maid.ma.name.length", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_maid_ma_name_string,
|
||
|
|
{ "Short MA Name", "cfm.maid.ma.name", FT_STRING,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_maid_ma_name_hex,
|
||
|
|
{ "Short MA Name", "cfm.maid.ma.name", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_maid_padding,
|
||
|
|
{ "0 Padding", "cfm.ccm.maid.padding", FT_NONE,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_ccm_itu_t_y1731,
|
||
|
|
{ "Defined by ITU-T Y.1731", "cfm.ccm.itu.t.y1731", FT_NONE,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
|
||
|
|
/* CFM LBM*/
|
||
|
|
{ &hf_cfm_lbm_pdu,
|
||
|
|
{ "CFM LBM PDU", "cfm.lbm.pdu", FT_NONE,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_lb_transaction_id,
|
||
|
|
{ "Loopback Transaction Identifier", "cfm.lb.transaction.id", FT_UINT32,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
|
||
|
|
/* CFM LBR*/
|
||
|
|
{ &hf_cfm_lbr_pdu,
|
||
|
|
{ "CFM LBR PDU", "cfm.lbr.pdu", FT_NONE,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
|
||
|
|
/* CFM LTM*/
|
||
|
|
{ &hf_cfm_ltm_pdu,
|
||
|
|
{ "CFM LTM PDU", "cfm.ltm.pdu", FT_NONE,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_flags_UseFDBonly,
|
||
|
|
{ "RDI", "cfm.flags.usefdbonly", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x80, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_flags_ltm_Reserved,
|
||
|
|
{ "Reserved", "cfm.flags.ltm.reserved", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x7F, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_lt_transaction_id,
|
||
|
|
{ "Linktrace Transaction Identifier", "cfm.lt.transaction.id", FT_UINT32,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_lt_ttl,
|
||
|
|
{ "Linktrace TTL", "cfm.lt.ttl", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_ltm_orig_addr,
|
||
|
|
{ "Linktrace Message: Original Address", "cfm.ltm.orig.addr", FT_ETHER,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_ltm_targ_addr,
|
||
|
|
{ "Linktrace Message: Target Address", "cfm.ltm.targ.addr", FT_ETHER,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
|
||
|
|
/* CFM LTR*/
|
||
|
|
{ &hf_cfm_ltr_pdu,
|
||
|
|
{ "CFM LTR PDU", "cfm.ltr.pdu", FT_NONE,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_flags_FwdYes,
|
||
|
|
{ "FwdYes", "cfm.flags.fwdyes", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x40, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_flags_TerminalMEP,
|
||
|
|
{ "TerminalMEP", "cfm.flags.ltr.terminalmep", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x20, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_flags_ltr_Reserved,
|
||
|
|
{ "Reserved", "cfm.flags.ltr.reserved", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x1F, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_ltr_relay_action,
|
||
|
|
{ "Linktrace Reply Relay Action", "cfm.ltr.relay.action", FT_UINT8,
|
||
|
|
BASE_DEC, VALS(relayactiontypes), 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
|
||
|
|
/* CFM AIS*/
|
||
|
|
{ &hf_cfm_ais_pdu,
|
||
|
|
{ "CFM AIS PDU", "cfm.ais.pdu", FT_NONE,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_flags_ais_lck_Reserved,
|
||
|
|
{ "Reserved", "cfm.flags.reserved", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0xF8, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_flags_ais_lck_Period,
|
||
|
|
{ "Period", "cfm.flags.period", FT_UINT8,
|
||
|
|
BASE_DEC, VALS(aislckperiodtypes), 0x07, NULL, HFILL }
|
||
|
|
},
|
||
|
|
|
||
|
|
/******************************* TLVs ****************************/
|
||
|
|
{ &hf_cfm_all_tlvs,
|
||
|
|
{ "CFM TLVs", "cfm.all.tlvs", FT_NONE,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_cfm_tlv_type,
|
||
|
|
{ "TLV Type", "cfm.tlv.type", FT_UINT8,
|
||
|
|
BASE_DEC, VALS(tlvtypefieldvalues), 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_cfm_tlv_length,
|
||
|
|
{ "TLV Length", "cfm.tlv.length", FT_UINT16,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
/* Sender ID TLV */
|
||
|
|
{ &hf_tlv_chassis_id_length,
|
||
|
|
{ "Chassis ID Length", "cfm.tlv.chassis.id.length", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_tlv_chassis_id_subtype,
|
||
|
|
{ "Chassis ID Sub-type", "cfm.tlv.chassis.id.subtype", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_tlv_chassis_id,
|
||
|
|
{ "Chassis ID", "cfm.tlv.chassis.id", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_tlv_ma_domain_length,
|
||
|
|
{ "Management Address Domain Length", "cfm.tlv.ma.domain.length", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_tlv_ma_domain,
|
||
|
|
{ "Management Address Domain", "cfm.tlv.ma.domain", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_tlv_management_addr_length,
|
||
|
|
{ "Management Address Length", "cfm.tlv.management.addr.length", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_tlv_management_addr,
|
||
|
|
{ "Management Address", "cfm.tlv.management.addr", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
|
||
|
|
/* Port Status TLV */
|
||
|
|
{ &hf_tlv_port_status_value,
|
||
|
|
{ "Port Status value", "cfm.tlv.port.status.value", FT_UINT8,
|
||
|
|
BASE_DEC, VALS(portstatTLVvalues), 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
|
||
|
|
/* Data TLV */
|
||
|
|
{ &hf_tlv_data_value,
|
||
|
|
{ "Data Value", "cfm.tlv.data.value", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
|
||
|
|
/* Interface status TLV */
|
||
|
|
{ &hf_tlv_interface_status_value,
|
||
|
|
{ "Interface Status value", "cfm.tlv.port.interface.value", FT_UINT8,
|
||
|
|
BASE_DEC, VALS(interfacestatTLVvalues), 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
|
||
|
|
/* Reply Ingress TLV */
|
||
|
|
{ &hf_tlv_reply_ingress_action,
|
||
|
|
{ "Ingress Action", "cfm.tlv.reply.ingress.action", FT_UINT8,
|
||
|
|
BASE_DEC, VALS(replyingressTLVvalues), 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_tlv_reply_ingress_mac_address,
|
||
|
|
{ "Ingress MAC address", "cfm.tlv.reply.ingress.mac.address", FT_ETHER,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_tlv_reply_ing_egr_portid_length,
|
||
|
|
{ "Chassis ID Length", "cfm.tlv.chassis.id.length", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_tlv_reply_ing_egr_portid_subtype,
|
||
|
|
{ "Chassis ID Sub-type", "cfm.tlv.chassis.id.subtype", FT_UINT8,
|
||
|
|
BASE_DEC, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_tlv_reply_ing_egr_portid,
|
||
|
|
{ "Chassis ID", "cfm.tlv.chassis.id", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
|
||
|
|
/* Reply Egress TLV */
|
||
|
|
{ &hf_tlv_reply_egress_action,
|
||
|
|
{ "Egress Action", "cfm.tlv.reply.egress.action", FT_UINT8,
|
||
|
|
BASE_DEC, VALS(replyegressTLVvalues), 0x0, NULL, HFILL}
|
||
|
|
},
|
||
|
|
{ &hf_tlv_reply_egress_mac_address,
|
||
|
|
{ "Egress MAC address", "cfm.tlv.reply.egress.mac.address", FT_ETHER,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
|
||
|
|
/* LTM Egress Identifier TLV */
|
||
|
|
{ &hf_tlv_ltm_egress_id_mac,
|
||
|
|
{ "Egress Identifier - MAC of LT Initiator/Responder", "cfm.tlv.ltm.egress.id", FT_ETHER,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_tlv_ltm_egress_id_unique_identifier,
|
||
|
|
{ "Egress Identifier - Unique Identifier", "cfm.tlv.ltm.egress.id", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
|
||
|
|
/* LTR Egress Identifier TLV */
|
||
|
|
{ &hf_tlv_ltr_egress_last_id,
|
||
|
|
{ "Last Egress Identifier", "cfm.tlv.ltr.egress.last.id", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_tlv_ltr_egress_next_id,
|
||
|
|
{ "Next Egress Identifier", "cfm.tlv.ltr.egress.next.id", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
|
||
|
|
/* Organization-Specific TLV */
|
||
|
|
{ &hf_tlv_org_spec_oui,
|
||
|
|
{ "OUI", "cfm.tlv.org.spec.oui", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_tlv_org_spec_subtype,
|
||
|
|
{ "Sub-Type", "cfm.tlv.org.spec.subtype", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_tlv_org_spec_value,
|
||
|
|
{ "Value", "cfm.tlv.org.spec.value", FT_BYTES,
|
||
|
|
BASE_NONE, NULL, 0x0, NULL, HFILL }
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Setup protocol subtree array */
|
||
|
|
static gint *ett[] = {
|
||
|
|
&ett_cfm,
|
||
|
|
&ett_cfm_ccm,
|
||
|
|
&ett_cfm_flags,
|
||
|
|
&ett_cfm_ccm_maid,
|
||
|
|
&ett_cfm_lbm,
|
||
|
|
&ett_cfm_lbr,
|
||
|
|
&ett_cfm_ltm,
|
||
|
|
&ett_cfm_ltr,
|
||
|
|
&ett_cfm_ais,
|
||
|
|
&ett_cfm_all_tlvs,
|
||
|
|
&ett_cfm_tlv
|
||
|
|
};
|
||
|
|
|
||
|
|
proto_cfm = proto_register_protocol (
|
||
|
|
"CFM EOAM 802.1ag/ITU Protocol", /* name */
|
||
|
|
"CFM", /* short name */
|
||
|
|
"cfm" /* abbrev */
|
||
|
|
);
|
||
|
|
|
||
|
|
register_dissector("cfm", dissect_cfm, proto_cfm);
|
||
|
|
|
||
|
|
proto_register_field_array(proto_cfm, hf, array_length(hf));
|
||
|
|
proto_register_subtree_array(ett, array_length(ett));
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Register CFM OEAM protocol handler */
|
||
|
|
void proto_reg_handoff_cfm(void)
|
||
|
|
{
|
||
|
|
static int initialized=FALSE;
|
||
|
|
if (!initialized) {
|
||
|
|
cfm_handle = create_dissector_handle(dissect_cfm, proto_cfm);
|
||
|
|
dissector_add("ethertype", ETHERTYPE_CFM, cfm_handle);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* CFM EOAM sub-protocol dissectors: CCM, LBM, LBR, LTM, LTR */
|
||
|
|
static int dissect_cfm_ccm(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
|
||
|
|
{
|
||
|
|
gint maid_offset = 0;
|
||
|
|
gint padding_length = 0;
|
||
|
|
|
||
|
|
guint8 cfm_maid_md_name_format = 0;
|
||
|
|
guint8 cfm_maid_md_name_length = 0;
|
||
|
|
guint8 cfm_maid_ma_name_format = 0;
|
||
|
|
guint8 cfm_maid_ma_name_length = 0;
|
||
|
|
|
||
|
|
proto_item *ti = NULL;
|
||
|
|
proto_item *fi = NULL;
|
||
|
|
proto_item *mi = NULL;
|
||
|
|
proto_tree *cfm_ccm_tree = NULL;
|
||
|
|
proto_tree *cfm_flag_tree = NULL;
|
||
|
|
proto_tree *cfm_ccm_maid_tree = NULL;
|
||
|
|
|
||
|
|
|
||
|
|
ti = proto_tree_add_item(tree, hf_cfm_ccm_pdu, tvb, offset, -1, FALSE);
|
||
|
|
cfm_ccm_tree = proto_item_add_subtree(ti, ett_cfm_ccm);
|
||
|
|
|
||
|
|
fi = proto_tree_add_item(cfm_ccm_tree, hf_cfm_flags, tvb, offset, 1, FALSE);
|
||
|
|
cfm_flag_tree = proto_item_add_subtree(fi, ett_cfm_flags);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_RDI, tvb, offset, 1, FALSE);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_ccm_Reserved, tvb, offset, 1, FALSE);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_Interval, tvb, offset, 1, FALSE);
|
||
|
|
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_ccm_tree, hf_cfm_first_tlv_offset, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_ccm_tree, hf_cfm_ccm_seq_number, tvb, offset, 4, FALSE);
|
||
|
|
offset += 4;
|
||
|
|
proto_tree_add_item(cfm_ccm_tree, hf_cfm_ccm_ma_ep_id, tvb, offset, 2, FALSE);
|
||
|
|
offset += 2;
|
||
|
|
|
||
|
|
mi = proto_tree_add_item(cfm_ccm_tree, hf_cfm_ccm_maid, tvb, offset, 48, FALSE);
|
||
|
|
cfm_ccm_maid_tree = proto_item_add_subtree(mi, ett_cfm_ccm_maid);
|
||
|
|
maid_offset = offset;
|
||
|
|
proto_tree_add_item(cfm_ccm_maid_tree, hf_cfm_maid_md_name_format, tvb, maid_offset, 1, FALSE);
|
||
|
|
cfm_maid_md_name_format = tvb_get_guint8(tvb, maid_offset);
|
||
|
|
maid_offset += 1;
|
||
|
|
if (cfm_maid_md_name_format != 1) {
|
||
|
|
proto_tree_add_item(cfm_ccm_maid_tree, hf_cfm_maid_md_name_length,
|
||
|
|
tvb, maid_offset, 1, FALSE);
|
||
|
|
cfm_maid_md_name_length = tvb_get_guint8(tvb, maid_offset);
|
||
|
|
maid_offset += 1;
|
||
|
|
if (cfm_maid_md_name_length) {
|
||
|
|
if (cfm_maid_md_name_format == 3) {
|
||
|
|
proto_tree_add_item(cfm_ccm_maid_tree, hf_cfm_maid_md_name_hex,
|
||
|
|
tvb, maid_offset, cfm_maid_md_name_length, FALSE);
|
||
|
|
} else {
|
||
|
|
proto_tree_add_item(cfm_ccm_maid_tree, hf_cfm_maid_md_name_string,
|
||
|
|
tvb, maid_offset, cfm_maid_md_name_length, FALSE);
|
||
|
|
}
|
||
|
|
maid_offset += cfm_maid_md_name_length;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
proto_tree_add_item(cfm_ccm_maid_tree, hf_cfm_maid_ma_name_format, tvb, maid_offset, 1, FALSE);
|
||
|
|
cfm_maid_ma_name_format = tvb_get_guint8(tvb, maid_offset);
|
||
|
|
maid_offset += 1;
|
||
|
|
proto_tree_add_item(cfm_ccm_maid_tree, hf_cfm_maid_ma_name_length, tvb, maid_offset, 1, FALSE);
|
||
|
|
cfm_maid_ma_name_length = tvb_get_guint8(tvb, maid_offset);
|
||
|
|
maid_offset += 1;
|
||
|
|
if (cfm_maid_ma_name_format == 2) {
|
||
|
|
proto_tree_add_item(cfm_ccm_maid_tree, hf_cfm_maid_ma_name_string,
|
||
|
|
tvb, maid_offset, cfm_maid_ma_name_length, FALSE);
|
||
|
|
} else {
|
||
|
|
proto_tree_add_item(cfm_ccm_maid_tree, hf_cfm_maid_ma_name_hex,
|
||
|
|
tvb, maid_offset, cfm_maid_ma_name_length, FALSE);
|
||
|
|
}
|
||
|
|
maid_offset += cfm_maid_ma_name_length;
|
||
|
|
offset += 48;
|
||
|
|
if (offset > maid_offset) {
|
||
|
|
padding_length = offset - maid_offset;
|
||
|
|
proto_tree_add_item(cfm_ccm_maid_tree, hf_cfm_maid_padding,
|
||
|
|
tvb, maid_offset, padding_length, FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_ccm_tree, hf_cfm_ccm_itu_t_y1731, tvb, offset, 16, FALSE);
|
||
|
|
offset += 16;
|
||
|
|
return offset;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int dissect_cfm_lbm(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
|
||
|
|
{
|
||
|
|
proto_item *ti = NULL;
|
||
|
|
proto_tree *cfm_lbm_tree = NULL;
|
||
|
|
|
||
|
|
ti = proto_tree_add_item(tree, hf_cfm_lbm_pdu, tvb, offset, -1, FALSE);
|
||
|
|
cfm_lbm_tree = proto_item_add_subtree(ti, ett_cfm_lbm);
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_lbm_tree, hf_cfm_flags, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_lbm_tree, hf_cfm_first_tlv_offset, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_lbm_tree, hf_cfm_lb_transaction_id, tvb, offset, 4, FALSE);
|
||
|
|
offset += 4;
|
||
|
|
return offset;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int dissect_cfm_lbr(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
|
||
|
|
{
|
||
|
|
proto_item *ti = NULL;
|
||
|
|
proto_tree *cfm_lbr_tree = NULL;
|
||
|
|
|
||
|
|
ti = proto_tree_add_item(tree, hf_cfm_lbr_pdu, tvb, offset, -1, FALSE);
|
||
|
|
cfm_lbr_tree = proto_item_add_subtree(ti, ett_cfm_lbr);
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_lbr_tree, hf_cfm_flags, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_lbr_tree, hf_cfm_first_tlv_offset, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_lbr_tree, hf_cfm_lb_transaction_id, tvb, offset, 4, FALSE);
|
||
|
|
offset += 4;
|
||
|
|
return offset;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int dissect_cfm_ltm(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
|
||
|
|
{
|
||
|
|
proto_item *ti = NULL;
|
||
|
|
proto_item *fi = NULL;
|
||
|
|
proto_tree *cfm_ltm_tree = NULL;
|
||
|
|
proto_tree *cfm_flag_tree = NULL;
|
||
|
|
|
||
|
|
ti = proto_tree_add_item(tree, hf_cfm_ltm_pdu, tvb, offset, -1, FALSE);
|
||
|
|
cfm_ltm_tree = proto_item_add_subtree(ti, ett_cfm_ltm);
|
||
|
|
|
||
|
|
fi = proto_tree_add_item(cfm_ltm_tree, hf_cfm_flags, tvb, offset, 1, FALSE);
|
||
|
|
cfm_flag_tree = proto_item_add_subtree(fi, ett_cfm_flags);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_UseFDBonly, tvb, offset, 1, FALSE);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_ltm_Reserved, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_ltm_tree, hf_cfm_first_tlv_offset, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_ltm_tree, hf_cfm_lt_transaction_id, tvb, offset, 4, FALSE);
|
||
|
|
offset += 4;
|
||
|
|
proto_tree_add_item(cfm_ltm_tree, hf_cfm_lt_ttl, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_ltm_tree, hf_cfm_ltm_orig_addr, tvb, offset, 6, FALSE);
|
||
|
|
offset += 6;
|
||
|
|
proto_tree_add_item(cfm_ltm_tree, hf_cfm_ltm_targ_addr, tvb, offset, 6, FALSE);
|
||
|
|
offset += 6;
|
||
|
|
return offset;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int dissect_cfm_ltr(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
|
||
|
|
{
|
||
|
|
proto_item *ti = NULL;
|
||
|
|
proto_item *fi = NULL;
|
||
|
|
proto_tree *cfm_ltr_tree = NULL;
|
||
|
|
proto_tree *cfm_flag_tree = NULL;
|
||
|
|
|
||
|
|
ti = proto_tree_add_item(tree, hf_cfm_ltr_pdu, tvb, offset, -1, FALSE);
|
||
|
|
cfm_ltr_tree = proto_item_add_subtree(ti, ett_cfm_ltr);
|
||
|
|
|
||
|
|
fi = proto_tree_add_item(cfm_ltr_tree, hf_cfm_flags, tvb, offset, 1, FALSE);
|
||
|
|
cfm_flag_tree = proto_item_add_subtree(fi, ett_cfm_flags);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_UseFDBonly, tvb, offset, 1, FALSE);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_FwdYes, tvb, offset, 1, FALSE);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_TerminalMEP, tvb, offset, 1, FALSE);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_ltr_Reserved, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_ltr_tree, hf_cfm_first_tlv_offset, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_ltr_tree, hf_cfm_lt_transaction_id, tvb, offset, 4, FALSE);
|
||
|
|
offset += 4;
|
||
|
|
proto_tree_add_item(cfm_ltr_tree, hf_cfm_lt_ttl, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_ltr_tree, hf_cfm_ltr_relay_action, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
return offset;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int dissect_cfm_ais(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
|
||
|
|
{
|
||
|
|
proto_item *ti = NULL;
|
||
|
|
proto_item *fi = NULL;
|
||
|
|
proto_tree *cfm_ais_tree = NULL;
|
||
|
|
proto_tree *cfm_flag_tree = NULL;
|
||
|
|
|
||
|
|
ti = proto_tree_add_item(tree, hf_cfm_ais_pdu, tvb, offset, -1, FALSE);
|
||
|
|
cfm_ais_tree = proto_item_add_subtree(ti, ett_cfm_ais);
|
||
|
|
|
||
|
|
fi = proto_tree_add_item(cfm_ais_tree, hf_cfm_flags, tvb, offset, 1, FALSE);
|
||
|
|
cfm_flag_tree = proto_item_add_subtree(fi, ett_cfm_flags);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_ais_lck_Reserved, tvb, offset, 1, FALSE);
|
||
|
|
proto_tree_add_item(cfm_flag_tree, hf_cfm_flags_ais_lck_Period, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_ais_tree, hf_cfm_first_tlv_offset, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
|
||
|
|
return offset;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/* Main CFM EOAM protocol dissector */
|
||
|
|
static void dissect_cfm(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
||
|
|
{
|
||
|
|
gint offset = 0;
|
||
|
|
gint cfm_tlv_offset = 0;
|
||
|
|
gint tlv_header_modifier = 0;
|
||
|
|
gint tlv_data_offset = 0;
|
||
|
|
|
||
|
|
guint8 cfm_pdu_type = 0;
|
||
|
|
guint8 cfm_tlv_type = 255;
|
||
|
|
guint16 cfm_tlv_length = 0;
|
||
|
|
guint8 tlv_chassis_id_length = 0;
|
||
|
|
guint8 tlv_ma_domain_length = 0;
|
||
|
|
guint8 tlv_management_addr_length = 0;
|
||
|
|
guint8 tlv_reply_ingress_portid_length = 0;
|
||
|
|
guint8 tlv_reply_egress_portid_length = 0;
|
||
|
|
|
||
|
|
proto_item *ti = NULL;
|
||
|
|
proto_item *fi = NULL;
|
||
|
|
proto_tree *cfm_tree = NULL;
|
||
|
|
proto_tree *cfm_all_tlvs_tree = NULL;
|
||
|
|
proto_tree *cfm_tlv_tree = NULL;
|
||
|
|
|
||
|
|
/* display the CFM protol name */
|
||
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL)) {
|
||
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "CFM");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Clear out stuff in the info column */
|
||
|
|
if (check_col(pinfo->cinfo,COL_INFO)) {
|
||
|
|
col_clear(pinfo->cinfo,COL_INFO);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* provide info column with CFM packet type (opcode)*/
|
||
|
|
cfm_pdu_type = tvb_get_guint8(tvb, 1);
|
||
|
|
|
||
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
||
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Type %s",
|
||
|
|
val_to_str(cfm_pdu_type, opcodetypenames, "Unknown (0x%02x)"));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (tree) { /* we are being asked for details */
|
||
|
|
|
||
|
|
|
||
|
|
/* isolate the payload of the packet */
|
||
|
|
ti = proto_tree_add_item(tree, proto_cfm, tvb, 0, -1, FALSE);
|
||
|
|
|
||
|
|
|
||
|
|
/* report type of CFM packet to base of dissection tree */
|
||
|
|
proto_item_append_text(ti, ", Type %s",
|
||
|
|
val_to_str(cfm_pdu_type, opcodetypenames, "Unknown (0x%02x)"));
|
||
|
|
|
||
|
|
/* dissecting the common CFM header */
|
||
|
|
cfm_tree = proto_item_add_subtree(ti, ett_cfm);
|
||
|
|
proto_tree_add_item(cfm_tree, hf_cfm_md_level, tvb, offset, 1, FALSE);
|
||
|
|
proto_tree_add_item(cfm_tree, hf_cfm_version, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
proto_tree_add_item(cfm_tree, hf_cfm_opcode, tvb, offset, 1, FALSE);
|
||
|
|
offset += 1;
|
||
|
|
|
||
|
|
switch(cfm_pdu_type) {
|
||
|
|
case CCM:
|
||
|
|
offset = dissect_cfm_ccm(tvb, pinfo, tree, offset);
|
||
|
|
break;
|
||
|
|
case LBM:
|
||
|
|
offset = dissect_cfm_lbm(tvb, pinfo, tree, offset);
|
||
|
|
break;
|
||
|
|
case LBR:
|
||
|
|
offset = dissect_cfm_lbr(tvb, pinfo, tree, offset);
|
||
|
|
break;
|
||
|
|
case LTM:
|
||
|
|
offset = dissect_cfm_ltm(tvb, pinfo, tree, offset);
|
||
|
|
break;
|
||
|
|
case LTR:
|
||
|
|
offset = dissect_cfm_ltr(tvb, pinfo, tree, offset);
|
||
|
|
break;
|
||
|
|
case AIS:
|
||
|
|
offset = dissect_cfm_ais(tvb, pinfo, tree, offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Get the TLV offset and add the offset of the common CFM header*/
|
||
|
|
cfm_tlv_offset = tvb_get_guint8(tvb, 3);
|
||
|
|
cfm_tlv_offset += 4;
|
||
|
|
|
||
|
|
/* Begin dissecting the TLV's */
|
||
|
|
/* the TLV offset should be the same as where the pdu left off or we have a problem */
|
||
|
|
if ((cfm_tlv_offset == offset) && (cfm_tlv_offset > 4)) {
|
||
|
|
ti = proto_tree_add_item(tree, hf_cfm_all_tlvs, tvb, cfm_tlv_offset, -1, FALSE);
|
||
|
|
cfm_all_tlvs_tree = proto_item_add_subtree(ti, ett_cfm_all_tlvs);
|
||
|
|
|
||
|
|
while (cfm_tlv_type != END_TLV)
|
||
|
|
{
|
||
|
|
cfm_tlv_type = tvb_get_guint8(tvb, cfm_tlv_offset);
|
||
|
|
|
||
|
|
if (cfm_tlv_type == END_TLV) {
|
||
|
|
tlv_header_modifier = 1;
|
||
|
|
cfm_tlv_length = 0;
|
||
|
|
} else {
|
||
|
|
tlv_header_modifier = 3;
|
||
|
|
cfm_tlv_length = tvb_get_ntohs(tvb, cfm_tlv_offset+1);
|
||
|
|
}
|
||
|
|
|
||
|
|
fi = proto_tree_add_text(cfm_all_tlvs_tree, tvb, cfm_tlv_offset, cfm_tlv_length+tlv_header_modifier,
|
||
|
|
"TLV: %s (t=%d,l=%d)", val_to_str(cfm_tlv_type, tlvtypefieldvalues, "Unknown (0x%02x)"),
|
||
|
|
cfm_tlv_type, cfm_tlv_length);
|
||
|
|
cfm_tlv_tree = proto_item_add_subtree(fi, ett_cfm_tlv);
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_cfm_tlv_type, tvb, cfm_tlv_offset, 1, FALSE);
|
||
|
|
cfm_tlv_offset += 1;
|
||
|
|
if ((cfm_tlv_type != END_TLV) && (cfm_tlv_length != 0)) {
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_cfm_tlv_length, tvb, cfm_tlv_offset, 2, FALSE);
|
||
|
|
cfm_tlv_offset += 2;
|
||
|
|
|
||
|
|
tlv_data_offset = cfm_tlv_offset;
|
||
|
|
|
||
|
|
switch(cfm_tlv_type) {
|
||
|
|
case SENDER_ID_TLV:
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_chassis_id_length,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_chassis_id_length = tvb_get_guint8(tvb,tlv_data_offset);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
|
||
|
|
if (tlv_chassis_id_length > 0) {
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_chassis_id_subtype,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_chassis_id,
|
||
|
|
tvb, tlv_data_offset, tlv_chassis_id_length, FALSE);
|
||
|
|
tlv_data_offset += tlv_chassis_id_length;
|
||
|
|
}
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_ma_domain_length,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_ma_domain_length = tvb_get_guint8(tvb,tlv_data_offset);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
if (tlv_ma_domain_length > 0) {
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_ma_domain,
|
||
|
|
tvb, tlv_data_offset, tlv_ma_domain_length, FALSE);
|
||
|
|
tlv_data_offset += tlv_ma_domain_length;
|
||
|
|
}
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_management_addr_length,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_management_addr_length = tvb_get_guint8(tvb,tlv_data_offset);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
if (tlv_management_addr_length > 0) {
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_management_addr,
|
||
|
|
tvb, tlv_data_offset, tlv_management_addr_length, FALSE);
|
||
|
|
tlv_data_offset += tlv_management_addr_length;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case PORT_STAT_TLV:
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_port_status_value,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
break;
|
||
|
|
case DATA_TLV:
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_data_value,
|
||
|
|
tvb, tlv_data_offset, cfm_tlv_length, FALSE);
|
||
|
|
tlv_data_offset += cfm_tlv_length;
|
||
|
|
break;
|
||
|
|
case INTERF_STAT_TLV:
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_interface_status_value,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
break;
|
||
|
|
case REPLY_ING_TLV:
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_reply_ingress_action,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_reply_ingress_mac_address,
|
||
|
|
tvb, tlv_data_offset, 6, FALSE);
|
||
|
|
tlv_data_offset += 6;
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_reply_ing_egr_portid_length,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_reply_ingress_portid_length = tvb_get_guint8(tvb,tlv_data_offset);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
|
||
|
|
if (tlv_reply_ingress_portid_length > 0) {
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_reply_ing_egr_portid_subtype,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_reply_ing_egr_portid,
|
||
|
|
tvb, tlv_data_offset, tlv_reply_ingress_portid_length, FALSE);
|
||
|
|
tlv_data_offset += tlv_reply_ingress_portid_length;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case REPLY_EGR_TLV:
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_reply_egress_action,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_reply_egress_mac_address,
|
||
|
|
tvb, tlv_data_offset, 6, FALSE);
|
||
|
|
tlv_data_offset += 6;
|
||
|
|
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_reply_ing_egr_portid_length,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_reply_egress_portid_length = tvb_get_guint8(tvb,tlv_data_offset);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
|
||
|
|
if (tlv_reply_egress_portid_length > 0) {
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_reply_ing_egr_portid_subtype,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_reply_ing_egr_portid,
|
||
|
|
tvb, tlv_data_offset, tlv_reply_egress_portid_length, FALSE);
|
||
|
|
tlv_data_offset += tlv_reply_egress_portid_length;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case LTM_EGR_ID_TLV:
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_ltm_egress_id_mac,
|
||
|
|
tvb, tlv_data_offset, 6, FALSE);
|
||
|
|
tlv_data_offset += 6;
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_ltm_egress_id_unique_identifier,
|
||
|
|
tvb, tlv_data_offset, 2, FALSE);
|
||
|
|
tlv_data_offset += 2;
|
||
|
|
break;
|
||
|
|
case LTR_EGR_ID_TLV:
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_ltr_egress_last_id,
|
||
|
|
tvb, tlv_data_offset, 8, FALSE);
|
||
|
|
tlv_data_offset += 8;
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_ltr_egress_next_id,
|
||
|
|
tvb, tlv_data_offset, 8, FALSE);
|
||
|
|
tlv_data_offset += 8;
|
||
|
|
break;
|
||
|
|
case ORG_SPEC_TLV:
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_org_spec_oui,
|
||
|
|
tvb, tlv_data_offset, 3, FALSE);
|
||
|
|
tlv_data_offset += 3;
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_org_spec_subtype,
|
||
|
|
tvb, tlv_data_offset, 1, FALSE);
|
||
|
|
tlv_data_offset += 1;
|
||
|
|
|
||
|
|
if (cfm_tlv_length > 0) {
|
||
|
|
proto_tree_add_item(cfm_tlv_tree, hf_tlv_org_spec_value,
|
||
|
|
tvb, tlv_data_offset, cfm_tlv_length, FALSE);
|
||
|
|
tlv_data_offset -= 4;
|
||
|
|
}
|
||
|
|
tlv_data_offset += cfm_tlv_length;
|
||
|
|
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
cfm_tlv_offset += cfm_tlv_length;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|