forked from osmocom/wireshark
1876 lines
77 KiB
C
1876 lines
77 KiB
C
/* packet-cip.c
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* Routines for Common Industrial Protocol (CIP) dissection
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* CIP Home: www.odva.org
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*
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* Copyright 2004
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* Magnus Hansson <mah@hms.se>
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* Joakim Wiberg <jow@hms.se>
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*
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* Added support for Connection Configuration Object
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* ryan wamsley * Copyright 2007
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* Added Additional Status text in Forward Open Response
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* ryan wamsley * Copyright 2008
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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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include "packet-tcp.h"
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#include "packet-cip.h"
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#define ENIP_CIP_INTERFACE 0
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/* Initialize the protocol and registered fields */
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static int proto_cip = -1;
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static int hf_cip_sc = -1;
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static int hf_cip_rr = -1;
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static int hf_cip_epath = -1;
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static int hf_cip_genstat = -1;
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static int hf_cip_fwo_comp = -1;
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static int hf_cip_fwo_mrev = -1;
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static int hf_cip_fwo_con_size = -1;
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static int hf_cip_fwo_fixed_var = -1;
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static int hf_cip_fwo_prio = -1;
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static int hf_cip_fwo_typ = -1;
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static int hf_cip_fwo_own = -1;
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static int hf_cip_fwo_dir = -1;
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static int hf_cip_fwo_trigg = -1;
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static int hf_cip_fwo_class = -1;
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static int hf_cip_vendor = -1;
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static int hf_cip_devtype = -1;
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static int hf_cip_port = -1;
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static int hf_cip_link_address_byte = -1;
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static int hf_cip_link_address_string = -1;
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static int hf_cip_class8 = -1;
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static int hf_cip_class16 = -1;
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static int hf_cip_class32 = -1;
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static int hf_cip_instance8 = -1;
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static int hf_cip_instance16 = -1;
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static int hf_cip_instance32 = -1;
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static int hf_cip_attribute8 = -1;
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static int hf_cip_attribute16 = -1;
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static int hf_cip_attribute32 = -1;
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static int hf_cip_conpoint8 = -1;
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static int hf_cip_conpoint16 = -1;
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static int hf_cip_conpoint32 = -1;
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static int hf_cip_symbol = -1;
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static int hf_cip_data = -1;
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/* Initialize the subtree pointers */
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static gint ett_cip = -1;
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static gint ett_ekey_path = -1;
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static gint ett_cia_path = -1;
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static gint ett_data_seg = -1;
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static gint ett_rrsc = -1;
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static gint ett_mcsc = -1;
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static gint ett_ncp = -1;
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static gint ett_lsrcf = -1;
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static gint ett_mes_req = -1;
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static gint ett_cmd_data = -1;
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static gint ett_port_path = -1;
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static gint ett_mult_ser = -1;
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static gint ett_path = -1;
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static gint ett_status_item = -1;
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/* Translate function to string - CIP Service codes */
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static const value_string cip_sc_vals[] = {
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{ SC_GET_ATT_ALL, "Get Attribute All" },
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{ SC_SET_ATT_ALL, "Set Attribute All" },
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{ SC_GET_ATT_LIST, "Get Attribute List" },
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{ SC_SET_ATT_LIST, "Set Attribute List" },
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{ SC_RESET, "Reset" },
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{ SC_START, "Start" },
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{ SC_STOP, "Stop" },
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{ SC_CREATE, "Create" },
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{ SC_DELETE, "Delete" },
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{ SC_APPLY_ATTRIBUTES, "Apply Attributes" },
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{ SC_GET_ATT_SINGLE, "Get Attribute Single" },
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{ SC_SET_ATT_SINGLE, "Set Attribute Single" },
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{ SC_FIND_NEXT_OBJ_INST, "Find Next Object Instance" },
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{ SC_RESTOR, "Restore" },
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{ SC_SAVE, "Save" },
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{ SC_NO_OP, "Nop" },
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{ SC_GET_MEMBER, "Get Member" },
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{ SC_SET_MEMBER, "Set Member" },
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{ SC_MULT_SERV_PACK, "Multiple Service Packet" },
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/* Some class specific services */
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{ SC_FWD_CLOSE, "Forward Close" },
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{ SC_FWD_OPEN, "Forward Open" },
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{ SC_UNCON_SEND, "Unconnected Send" },
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/* Connection Configuration Object services */
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{ SC_KICK_TIMER, "Kick Timer" },
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{ SC_OPEN_CONN, "Open Connection" },
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{ SC_CLOSE_CONN, "Close Connection" },
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{ SC_CHANGE_START, "Change Start" },
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{ SC_GET_STATUS, "Get Status" },
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{ SC_CHANGE_COMPLETE, "Change Complete" },
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{ 0, NULL }
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};
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/* Translate function to string - CIP Service codes that collide with cip_sc_vals */
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static const value_string cip_sc_vals_cco[] = {
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/* Connection Configuration Object services */
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{ SC_STOP_CONN, "Stop Connection" }, /* collision with SC_UNCON_SEND */
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{ SC_AUDIT_CHANGE, "Audit Changes" }, /* collision with SC_UNCON_SEND */
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{ 0, NULL }
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};
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/* Translate function to string - CIP Request/Response */
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static const value_string cip_sc_rr[] = {
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{ 0, "Request" },
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{ 1, "Response" },
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{ 0, NULL }
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};
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/* Translate function to string - Compatibility */
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static const value_string cip_com_bit_vals[] = {
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{ 0, "Bit Cleared" },
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{ 1, "Bit Set" },
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{ 0, NULL }
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};
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/* Translate function to string - Connection priority */
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static const value_string cip_con_prio_vals[] = {
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{ 0, "Low Priority" },
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{ 1, "High Priority" },
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{ 2, "Scheduled" },
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{ 3, "Urgent" },
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{ 0, NULL }
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};
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/* Translate function to string - Connection size fixed or variable */
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static const value_string cip_con_fw_vals[] = {
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{ 0, "Fixed" },
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{ 1, "Variable" },
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{ 0, NULL }
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};
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/* Translate function to string - Connection owner */
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static const value_string cip_con_owner_vals[] = {
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{ 0, "Exclusive" },
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{ 1, "Redundant" },
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{ 0, NULL }
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};
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/* Translate function to string - Connection direction */
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static const value_string cip_con_dir_vals[] = {
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{ 0, "Client" },
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{ 1, "Server" },
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{ 0, NULL }
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};
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/* Translate function to string - Production trigger */
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static const value_string cip_con_trigg_vals[] = {
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{ 0, "Cyclic" },
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{ 1, "Change-Of-State" },
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{ 2, "Application Object" },
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{ 0, NULL }
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};
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/* Translate function to string - Transport class */
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static const value_string cip_con_class_vals[] = {
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{ 0, "0" },
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{ 1, "1" },
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{ 2, "2" },
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{ 3, "3" },
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{ 0, NULL }
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};
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/* Translate function to string - Connection type */
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static const value_string cip_con_type_vals[] = {
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{ 0, "Null" },
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{ 1, "Multicast" },
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{ 2, "Point to Point" },
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{ 3, "Reserved" },
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{ 0, NULL }
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};
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/* Translate function to string - Timeout Multiplier */
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static const value_string cip_con_time_mult_vals[] = {
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{ 0, "*4" },
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{ 1, "*8" },
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{ 2, "*16" },
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{ 3, "*32" },
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{ 4, "*64" },
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{ 5, "*128" },
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{ 6, "*256" },
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{ 7, "*512" },
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{ 0, NULL }
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};
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/* Translate function to string - CIP General Status codes */
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static const value_string cip_gs_vals[] = {
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{ CI_GRC_SUCCESS, "Success" },
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{ CI_GRC_FAILURE, "Connection failure" },
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{ CI_GRC_NO_RESOURCE, "Resource unavailable" },
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{ CI_GRC_BAD_DATA, "Invalid parameter value" },
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{ CI_GRC_BAD_PATH, "Path segment error" },
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{ CI_GRC_BAD_CLASS_INSTANCE, "Path destination unknown" },
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{ CI_GRC_PARTIAL_DATA, "Partial transfer" },
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{ CI_GRC_CONN_LOST, "Connection lost" },
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{ CI_GRC_BAD_SERVICE, "Service not supported" },
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{ CI_GRC_BAD_ATTR_DATA, "Invalid attribute value" },
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{ CI_GRC_ATTR_LIST_ERROR, "Attribute list error" },
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{ CI_GRC_ALREADY_IN_MODE, "Already in requested mode/state" },
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{ CI_GRC_BAD_OBJ_MODE, "Object state conflict" },
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{ CI_GRC_OBJ_ALREADY_EXISTS, "Object already exists" },
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{ CI_GRC_ATTR_NOT_SETTABLE, "Attribute not settable" },
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{ CI_GRC_PERMISSION_DENIED, "Privilege violation" },
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{ CI_GRC_DEV_IN_WRONG_STATE, "Device state conflict" },
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{ CI_GRC_REPLY_DATA_TOO_LARGE,"Reply data too large" },
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{ CI_GRC_FRAGMENT_PRIMITIVE, "Fragmentation of a primitive value" },
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{ CI_GRC_CONFIG_TOO_SMALL, "Not enough data" },
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{ CI_GRC_UNDEFINED_ATTR, "Attribute not supported" },
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{ CI_GRC_CONFIG_TOO_BIG, "Too much data" },
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{ CI_GRC_OBJ_DOES_NOT_EXIST, "Object does not exist" },
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{ CI_GRC_NO_FRAGMENTATION, "Service fragmentation sequence not in progress" },
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{ CI_GRC_DATA_NOT_SAVED, "No stored attribute data" },
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{ CI_GRC_DATA_WRITE_FAILURE, "Store operation failure" },
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{ CI_GRC_REQUEST_TOO_LARGE, "Routing failure, request packet too large" },
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{ CI_GRC_RESPONSE_TOO_LARGE, "Routing failure, response packet too large" },
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{ CI_GRC_MISSING_LIST_DATA, "Missing attribute list entry data" },
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{ CI_GRC_INVALID_LIST_STATUS, "Invalid attribute value list" },
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{ CI_GRC_SERVICE_ERROR, "Embedded service error" },
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{ CI_GRC_CONN_RELATED_FAILURE,"Vendor specific error" },
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{ CI_GRC_INVALID_PARAMETER, "Invalid parameter" },
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{ CI_GRC_WRITE_ONCE_FAILURE, "Write-once value or medium already written" },
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{ CI_GRC_INVALID_REPLY, "Invalid Reply Received" },
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{ CI_GRC_BAD_KEY_IN_PATH, "Key Failure in path" },
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{ CI_GRC_BAD_PATH_SIZE, "Path Size Invalid" },
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{ CI_GRC_UNEXPECTED_ATTR, "Unexpected attribute in list" },
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{ CI_GRC_INVALID_MEMBER, "Invalid Member ID" },
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{ CI_GRC_MEMBER_NOT_SETTABLE, "Member not settable" },
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{ 0, NULL }
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};
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/* Translate function to string - CIP Extended Status codes */
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static const value_string cip_es_vals[] = {
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{ CI_GRC_SUCCESS, "Success" },
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{ CI_SREC_CONNECTION_IN_USE, "Connection in Use or Duplicate Forward Open" },
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{ CI_SREC_TCLASS_TRIGGER_ERR, "Transport Class and Trigger combination not supported" },
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{ CI_SREC_OWNERSHIP_CONFLICT, "Ownership Conflict" },
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{ CI_SREC_CONN_NOT_FOUND, "Connection not found at target application" },
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{ CI_SREC_INVALID_CONN_TYPE, "Invalid Connection Type" },
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{ CI_SREC_INVALID_CONN_SIZE, "Invalid Connection Size" },
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{ CI_SREC_DEV_NOT_CONFIGURED, "Device not configured" },
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{ CI_SREC_UNSUPPORTED_RPI, "RPI not supported" },
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{ CI_SREC_NO_MORE_CONNS, "Connection Manager cannot support any more connections" },
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{ CI_SREC_VEN_OR_PCODE_MISMATCH, "The Vendor Id or Product Code did not match the device" },
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{ CI_SREC_PRODTYPE_MISMATCH, "The Product Type did not match the device" },
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{ CI_SREC_REVISION_MISMATCH, "The Major or Minor Revision did not match the device" },
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{ CI_SREC_BAD_CONN_POINT, "Invalid Connection Point" },
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{ CI_SREC_INVAL_CONFIG_FRMT, "Invalid Configuration Format" },
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{ CI_SREC_NO_CONTROL_CONN, "There is no controlling connection currently open" },
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{ CI_SREC_NO_MORE_CONN_SUPPORT, "Target Application cannot support any more connections" },
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{ CI_SREC_RPI_SMALLERTHAN_PIT, "RPI is smaller than the Production Inhibit Time" },
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{ CI_SREC_CONN_ALREADY_CLOSED, "Connection cannot be closed: connection has timed out" },
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{ CI_SREC_UNCONN_SND_TIMEOUT, "Unconnected Send timed out" },
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{ CI_SREC_UNCONN_PARM_ERR, "Parameter Error in Unconnected Send Service" },
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{ CI_SREC_UCONN_TOO_LARGE, "Message too large for Unconnected message service" },
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{ CI_SREC_UCONN_ACK_NO_REP, "Unconnected acknowledge without reply" },
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{ CI_SREC_NO_MEMORY, "No buffer memory available" },
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{ CI_SREC_NO_NET_BANDWIDTH, "Network Bandwidth not available for data" },
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{ CI_SREC_NO_SCREENERS, "No screeners available" },
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{ CI_SREC_NO_REALTIME_CONFIG, "Not Configured to send real-time data" },
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{ CI_SREC_INVALID_PORT, "Port specified in Port Segment Not Available" },
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{ CI_SREC_LINKADDR_NOT_AVAIL, "Link Address specified in Port Segment Not Available" },
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{ CI_SREC_INVALID_SEGMENT_TYP, "Invalid Segment Type or Segment Value in Path" },
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{ CI_SREC_CLOSE_PATH_ERR, "Error in close path" },
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{ CI_SREC_NO_SCHED, "Scheduling not specified" },
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{ CI_SREC_INVALID_LINK_ADDR, "Link Address to Self Invalid" },
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{ CI_SREC_UNAVAIL_RESOURCE, "Resources on Secondary Unavailable" },
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{ CI_SREC_CONN_ALREADY_ESTAB, "Connection already established" },
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{ CI_SREC_DCONN_ALREADY_ESTAB, "Direct connection already established" },
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{ CI_SREC_MISC, "Miscellaneous" },
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{ CI_SREC_REDUNDANT_MISMATCH, "Redundant connection mismatch" },
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{ CI_SREC_NO_CONSUME_RESRC, "No more consumer resources available in the producing module" },
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{ CI_SREC_NO_CONN_RESRC, "No connection resources exist for target path" },
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{ 0, NULL }
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} ;
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/* Translate Vendor ID:s */
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const value_string cip_vendor_vals[] = {
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VENDOR_ID_LIST
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{ 0, NULL }
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};
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/* Translate Device Profile:s */
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const value_string cip_devtype_vals[] = {
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{ DP_GEN_DEV, "Generic Device" },
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{ DP_AC_DRIVE, "AC Drive" },
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{ DP_MOTOR_OVERLOAD, "Motor Overload" },
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{ DP_LIMIT_SWITCH, "Limit Switch" },
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{ DP_IND_PROX_SWITCH, "Inductive Proximity Switch" },
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{ DP_PHOTO_SENSOR, "Photoelectric Sensor" },
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{ DP_GENP_DISC_IO, "General Purpose Discrete I/O"},
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{ DP_RESOLVER, "Resolver" },
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{ DP_COM_ADAPTER, "Communications Adapter" },
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{ DP_POS_CNT, "Position Controller", },
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{ DP_DC_DRIVE, "DC Drive" },
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{ DP_CONTACTOR, "Contactor", },
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{ DP_MOTOR_STARTER, "Motor Starter", },
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{ DP_SOFT_START, "Soft Start", },
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{ DP_HMI, "Human-Machine Interface" },
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{ DP_MASS_FLOW_CNT, "Mass Flow Controller" },
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{ DP_PNEUM_VALVE, "Pneumatic Valve" },
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{ DP_VACUUM_PRES_GAUGE, "Vacuum Pressure Gauge" },
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{ 0, NULL }
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};
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/* Translate class names */
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static const value_string cip_class_names_vals[] = {
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{ 0x01, "Identity Object" },
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{ 0x02, "Message Router" },
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{ 0x03, "DeviceNet Object" },
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{ 0x04, "Assembly Object" },
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{ 0x05, "Connection Object" },
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{ 0x06, "Connection Manager" },
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{ 0x07, "Register Object" },
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{ 0x08, "Discrete Input Point Object" },
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{ 0x09, "Discrete Output Point Object" },
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{ 0x0A, "Analog Input Point Object" },
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{ 0x0B, "Analog Output Point Object" },
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{ 0x0E, "Presence Sensing Object" },
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{ 0x0F, "Parameter Object" },
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{ 0x10, "Parameter Group Object" },
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{ 0x12, "Group Object" },
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{ 0x1D, "Discrete Input Group Object" },
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{ 0x1E, "Discrete Output Group Object" },
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{ 0x1F, "Discrete Group Object" },
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{ 0x20, "Analog Input Group Object" },
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{ 0x21, "Analog Output Group Object" },
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{ 0x22, "Analog Group Object" },
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{ 0x23, "Position Sensor Object" },
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{ 0x24, "Position Controller Supervisor Object" },
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{ 0x25, "Position Controller Object" },
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{ 0x26, "Block Sequencer Object" },
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{ 0x27, "Command Block Object" },
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{ 0x28, "Motor Data Object" },
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{ 0x29, "Control Supervisor Object" },
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{ 0x2A, "AC/DC Drive Object" },
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{ 0x2B, "Acknowledge Handler Object" },
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{ 0x2C, "Overload Object" },
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{ 0x2D, "Softstart Object" },
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{ 0x2E, "Selection Object" },
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{ 0x30, "S-Device Supervisor Object" },
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{ 0x31, "S-Analog Sensor Object" },
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{ 0x32, "S-Analog Actuator Object" },
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{ 0x33, "S-Single Stage Controller Object" },
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{ 0x34, "S-Gas Calibration Object" },
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{ 0x35, "Trip Point Object" },
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{ 0x37, "File Object" },
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{ 0x38, "S-Partial Pressure Object" },
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{ 0xF0, "ControlNet Object" },
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{ 0xF1, "ControlNet Keeper Object" },
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{ 0xF2, "ControlNet Scheduling Object" },
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{ 0xF3, "Connection Configuration Object" },
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{ 0xF4, "Port Object" },
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{ 0xF5, "TCP/IP Interface Object" },
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{ 0xF6, "EtherNet Link Object" },
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{ 0, NULL }
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};
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/* Dissect EPATH */
|
|
static void
|
|
dissect_epath( tvbuff_t *tvb, proto_item *epath_item, int offset, int path_length )
|
|
{
|
|
int pathpos, temp_data, temp_data2, seg_size, i, temp_word;
|
|
unsigned char segment_type, opt_link_size;
|
|
proto_tree *path_tree, *port_tree, *net_tree;
|
|
proto_item *qi, *cia_item, *ds_item;
|
|
proto_tree *e_key_tree, *cia_tree, *ds_tree;
|
|
proto_item *mcpi, *port_item, *net_item;
|
|
proto_tree *mc_tree;
|
|
proto_item *hidden_item;
|
|
|
|
/* Create a sub tree for the epath */
|
|
path_tree = proto_item_add_subtree( epath_item, ett_path );
|
|
|
|
hidden_item = proto_tree_add_item(path_tree, hf_cip_epath,
|
|
tvb, offset, path_length, TRUE );
|
|
PROTO_ITEM_SET_HIDDEN(hidden_item);
|
|
|
|
pathpos = 0;
|
|
|
|
while( pathpos < path_length )
|
|
{
|
|
/* Get segement type */
|
|
segment_type = tvb_get_guint8( tvb, offset + pathpos );
|
|
|
|
/* Determine the segment type */
|
|
|
|
switch( segment_type & CI_SEGMENT_TYPE_MASK )
|
|
{
|
|
case CI_PORT_SEGMENT:
|
|
|
|
port_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 0, "Port Segment" );
|
|
port_tree = proto_item_add_subtree( port_item, ett_port_path );
|
|
|
|
/* Add port number */
|
|
proto_tree_add_item( port_tree, hf_cip_port, tvb, offset + pathpos, 1, TRUE );
|
|
proto_item_append_text( epath_item, "Port: %d", ( segment_type & 0x0F ) );
|
|
proto_item_append_text( port_item, ": Port: %d", ( segment_type & 0x0F ) );
|
|
|
|
if( segment_type & 0x10 )
|
|
{
|
|
/* Add Extended Link Address flag */
|
|
proto_tree_add_text( port_tree, tvb, offset+pathpos, 1, "Extended Link Address: TRUE" );
|
|
|
|
/* Add size of extended link address */
|
|
opt_link_size = tvb_get_guint8( tvb, offset + pathpos + 1 );
|
|
proto_tree_add_text( port_tree, tvb, offset+pathpos+1, 1, "Link Address Size: %d", opt_link_size );
|
|
|
|
/* Add extended link address */
|
|
proto_tree_add_item( port_tree, hf_cip_link_address_string, tvb, offset+pathpos+2, opt_link_size, FALSE );
|
|
proto_item_append_text( epath_item, ", Address: %s", tvb_format_text(tvb, offset+pathpos+2, opt_link_size) );
|
|
proto_item_append_text( port_item, ", Address: %s", tvb_format_text(tvb, offset+pathpos+2, opt_link_size) );
|
|
|
|
/* Pad byte */
|
|
if( opt_link_size % 2 )
|
|
{
|
|
proto_item_set_len( port_item, 3 + opt_link_size );
|
|
pathpos = pathpos + 3 + opt_link_size;
|
|
}
|
|
else
|
|
{
|
|
proto_item_set_len( port_item, 2 + opt_link_size );
|
|
pathpos = pathpos + 2 + opt_link_size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Add Extended Link Address flag */
|
|
proto_tree_add_text( port_tree, tvb, offset+pathpos, 1, "Extended Link Address: FALSE" );
|
|
|
|
/* Add Link Address */
|
|
proto_tree_add_item( port_tree, hf_cip_link_address_byte, tvb, offset+pathpos+1, 1, FALSE );
|
|
proto_item_append_text( epath_item, ", Address: %d",tvb_get_guint8( tvb, offset + pathpos + 1 ) );
|
|
proto_item_append_text( port_item, ", Address: %d",tvb_get_guint8( tvb, offset + pathpos + 1 ) );
|
|
|
|
proto_item_set_len( port_item, 2 );
|
|
pathpos += 2;
|
|
}
|
|
|
|
break;
|
|
|
|
case CI_LOGICAL_SEGMENT:
|
|
|
|
/* Logical segment, determin the logical type */
|
|
|
|
switch( segment_type & CI_LOGICAL_SEG_TYPE_MASK )
|
|
{
|
|
case CI_LOGICAL_SEG_CLASS_ID:
|
|
|
|
/* Logical Class ID, do a format check */
|
|
|
|
if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_8_BIT )
|
|
{
|
|
temp_data = tvb_get_guint8( tvb, offset + pathpos + 1 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "8-Bit Logical Class Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the class */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 8-bit class number */
|
|
proto_tree_add_item( cia_tree, hf_cip_class8, tvb, offset + pathpos + 1, 1, TRUE );
|
|
proto_item_append_text( epath_item, "%s", val_to_str( temp_data, cip_class_names_vals , "Class: 0x%02X" ) );
|
|
|
|
/* 2 bytes of path used */
|
|
pathpos += 2;
|
|
}
|
|
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_16_BIT )
|
|
{
|
|
temp_data = tvb_get_letohs( tvb, offset + pathpos + 2 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 4, "16-Bit Logical Class Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the class */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 16-bit class number */
|
|
proto_tree_add_item( cia_tree, hf_cip_class16, tvb, offset + pathpos + 2, 2, TRUE );
|
|
proto_item_append_text( epath_item, "%s", val_to_str( temp_data, cip_class_names_vals , "Class: 0x%04X" ) );
|
|
|
|
/* 4 bytes of path used */
|
|
pathpos += 4;
|
|
}
|
|
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_32_BIT )
|
|
{
|
|
temp_data = tvb_get_letohl( tvb, offset + pathpos + 2 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 6, "32-Bit Logical Instance Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the class */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 32-bit class number */
|
|
proto_tree_add_item( cia_tree, hf_cip_class32, tvb, offset + pathpos + 2, 4, TRUE );
|
|
proto_item_append_text( epath_item, "%s", val_to_str( temp_data, cip_class_names_vals , "Class: 0x%08X" ) );
|
|
|
|
/* 6 bytes of path used */
|
|
pathpos += 6;
|
|
}
|
|
else
|
|
{
|
|
/* Unsupported logical segment format */
|
|
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Logical Segment Format" );
|
|
return;
|
|
}
|
|
break;
|
|
|
|
|
|
case CI_LOGICAL_SEG_INST_ID:
|
|
|
|
/* Logical Instance ID, do a format check */
|
|
|
|
if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_8_BIT )
|
|
{
|
|
temp_data = tvb_get_guint8( tvb, offset + pathpos + 1 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "8-Bit Logical Instance Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the instance */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 8-bit instance number */
|
|
proto_tree_add_item( cia_tree, hf_cip_instance8, tvb, offset + pathpos + 1, 1, TRUE );
|
|
proto_item_append_text( epath_item, "Instance: 0x%02X", temp_data );
|
|
|
|
/* 2 bytes of path used */
|
|
pathpos += 2;
|
|
}
|
|
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_16_BIT )
|
|
{
|
|
temp_data = tvb_get_letohs( tvb, offset + pathpos + 2 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 4, "16-Bit Logical Instance Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the instance */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 16-bit instance number */
|
|
proto_tree_add_item( cia_tree, hf_cip_instance16, tvb, offset + pathpos + 2, 2, TRUE );
|
|
proto_item_append_text( epath_item, "Instance: 0x%04X", temp_data );
|
|
|
|
/* 4 bytes of path used */
|
|
pathpos += 4;
|
|
}
|
|
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_32_BIT )
|
|
{
|
|
temp_data = tvb_get_letohl( tvb, offset + pathpos + 2 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 6, "32-Bit Logical Instance Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the instance */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 32-bit instance number */
|
|
proto_tree_add_item( cia_tree, hf_cip_instance32, tvb, offset + pathpos + 2, 4, TRUE );
|
|
proto_item_append_text( epath_item, "Instance: 0x%08X", temp_data );
|
|
|
|
|
|
/* 6 bytes of path used */
|
|
pathpos += 6;
|
|
}
|
|
else
|
|
{
|
|
/* Unsupported logical segment format */
|
|
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Logical Segment Format" );
|
|
return;
|
|
}
|
|
break;
|
|
|
|
|
|
case CI_LOGICAL_SEG_ATTR_ID:
|
|
|
|
/* Logical Attribute ID, do a format check */
|
|
|
|
if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_8_BIT )
|
|
{
|
|
temp_data = tvb_get_guint8( tvb, offset + pathpos + 1 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "8-Bit Logical Attribute Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the attribute */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 8-bit attribute number */
|
|
proto_tree_add_item( cia_tree, hf_cip_attribute8, tvb, offset + pathpos + 1, 1, TRUE );
|
|
proto_item_append_text( epath_item, "Attribute: 0x%02X", temp_data );
|
|
|
|
/* 2 bytes of path used */
|
|
pathpos += 2;
|
|
}
|
|
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_16_BIT )
|
|
{
|
|
temp_data = tvb_get_letohs( tvb, offset + pathpos + 2 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 4, "16-Bit Logical Attribute Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the attribute */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 16-bit attribute number */
|
|
proto_tree_add_item( cia_tree, hf_cip_attribute16, tvb, offset + pathpos + 2, 2, TRUE );
|
|
proto_item_append_text( epath_item, "Attribute: 0x%04X", temp_data );
|
|
|
|
/* 4 bytes of path used */
|
|
pathpos += 4;
|
|
}
|
|
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_32_BIT )
|
|
{
|
|
temp_data = tvb_get_letohl( tvb, offset + pathpos + 2 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 6, "32-Bit Logical Attribute Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the attribute */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 32-bit attribute number */
|
|
proto_tree_add_item( cia_tree, hf_cip_attribute32, tvb, offset + pathpos + 2, 4, TRUE );
|
|
proto_item_append_text( epath_item, "Attribute: 0x%08X", temp_data );
|
|
|
|
/* 6 bytes of path used */
|
|
pathpos += 6;
|
|
}
|
|
else
|
|
{
|
|
/* Unsupported logical segment format */
|
|
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Logical Segment Format" );
|
|
return;
|
|
}
|
|
break;
|
|
|
|
|
|
case CI_LOGICAL_SEG_CON_POINT:
|
|
|
|
/* Logical Connection point , do a format check */
|
|
|
|
if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_8_BIT )
|
|
{
|
|
temp_data = tvb_get_guint8( tvb, offset + pathpos + 1 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "8-Bit Logical Connection Point Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the connection point */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 8-bit connection point number */
|
|
proto_tree_add_item( cia_tree, hf_cip_conpoint8, tvb, offset + pathpos + 1, 1, TRUE );
|
|
proto_item_append_text( epath_item, "Connection Point: 0x%02X", temp_data );
|
|
|
|
/* 2 bytes of path used */
|
|
pathpos += 2;
|
|
}
|
|
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_16_BIT )
|
|
{
|
|
temp_data = tvb_get_letohs( tvb, offset + pathpos + 2 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 4, "16-Bit Logical Connection Point Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the connection point */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 16-bit connection point number */
|
|
proto_tree_add_item( cia_tree, hf_cip_conpoint16, tvb, offset + pathpos + 2, 2, TRUE );
|
|
proto_item_append_text( epath_item, "Connection Point: 0x%04X", temp_data );
|
|
|
|
/* 4 bytes of path used */
|
|
pathpos += 4;
|
|
}
|
|
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_32_BIT )
|
|
{
|
|
temp_data = tvb_get_letohl( tvb, offset + pathpos + 2 );
|
|
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 6, "32-Bit Logical Connection Point Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree for the connection point */
|
|
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
|
|
|
|
/* Display the 32-bit connection point number */
|
|
proto_tree_add_item( cia_tree, hf_cip_conpoint32, tvb, offset + pathpos + 2, 4, TRUE );
|
|
proto_item_append_text( epath_item, "Connection Point: 0x%08X", temp_data );
|
|
|
|
/* 6 bytes of path used */
|
|
pathpos += 6;
|
|
}
|
|
else
|
|
{
|
|
/* Unsupported logical segment format */
|
|
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Logical Segment Format" );
|
|
return;
|
|
}
|
|
break;
|
|
|
|
|
|
case CI_LOGICAL_SEG_SPECIAL:
|
|
|
|
/* Logical Special ID, the only logical format sepcifyed is electronic key */
|
|
|
|
if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_E_KEY )
|
|
{
|
|
/* Get the Key Format */
|
|
temp_data = tvb_get_guint8( tvb, offset + pathpos + 1 );
|
|
|
|
if( temp_data == CI_E_KEY_FORMAT_VAL )
|
|
{
|
|
qi = proto_tree_add_text( path_tree, tvb, offset + pathpos, 10, "Electronic Key Segment (0x%02X): ",segment_type );
|
|
|
|
/* Create a sub tree for the IOI */
|
|
e_key_tree = proto_item_add_subtree( qi, ett_ekey_path );
|
|
|
|
/* Print the key type */
|
|
proto_tree_add_text( e_key_tree, tvb, offset + pathpos + 1, 1, "Key Format: 0x%02X", temp_data );
|
|
|
|
/* Get the Vendor ID */
|
|
temp_data = tvb_get_letohs( tvb, offset + pathpos + 2 );
|
|
proto_tree_add_item( e_key_tree, hf_cip_vendor, tvb, offset + pathpos + 2, 2, TRUE);
|
|
proto_item_append_text( qi, "VendorID: 0x%04X", temp_data );
|
|
|
|
/* Get Device Type */
|
|
temp_data = tvb_get_letohs( tvb, offset + pathpos + 4 );
|
|
proto_tree_add_item( e_key_tree, hf_cip_devtype, tvb, offset + pathpos + 4, 2, TRUE);
|
|
proto_item_append_text( qi, ", DevTyp: 0x%04X", temp_data );
|
|
|
|
/* Product Code */
|
|
temp_data = tvb_get_letohs( tvb, offset + pathpos + 6 );
|
|
proto_tree_add_text( e_key_tree, tvb, offset + pathpos + 6, 2, "Product Code: 0x%04X", temp_data );
|
|
|
|
/* Major revision/Compatibility */
|
|
temp_data = tvb_get_guint8( tvb, offset + pathpos + 8 );
|
|
|
|
/* Add Major revision/Compatibility tree */
|
|
mcpi = proto_tree_add_text(e_key_tree, tvb, offset + pathpos + 8, 1, "Compatibility ");
|
|
mc_tree = proto_item_add_subtree(mcpi, ett_mcsc);
|
|
|
|
/* Add Compatibility bit info */
|
|
proto_tree_add_item(mc_tree, hf_cip_fwo_comp,
|
|
tvb, offset + pathpos + 8, 1, TRUE );
|
|
|
|
proto_item_append_text( mcpi, "%s, Major Revision: %d",
|
|
val_to_str( ( temp_data & 0x80 )>>7, cip_com_bit_vals , "" ),
|
|
temp_data & 0x7F );
|
|
|
|
/* Major revision */
|
|
proto_tree_add_item(mc_tree, hf_cip_fwo_mrev,
|
|
tvb, offset + pathpos + 8, 1, TRUE );
|
|
|
|
/* Minor revision */
|
|
temp_data2 = tvb_get_guint8( tvb, offset + pathpos + 9 );
|
|
proto_tree_add_text( e_key_tree, tvb, offset + pathpos + 9, 1, "Minor Revision: %d", temp_data2 );
|
|
|
|
proto_item_append_text( qi, ", %d.%d", ( temp_data & 0x7F ), temp_data2 );
|
|
|
|
proto_item_append_text(epath_item, "[Key]" );
|
|
|
|
/* Increment the path pointer */
|
|
pathpos += 10;
|
|
}
|
|
else
|
|
{
|
|
/* Unsupported electronic key format */
|
|
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Electronic Key Format" );
|
|
return;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Unsupported special segment format */
|
|
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Special Segment Format" );
|
|
return;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
|
|
/* Unsupported logical segment type */
|
|
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Logical Segment Type" );
|
|
return;
|
|
|
|
} /* end of switch( segment_type & CI_LOGICAL_SEG_TYPE_MASK ) */
|
|
break;
|
|
|
|
|
|
case CI_DATA_SEGMENT:
|
|
|
|
/* Data segment, determin the logical type */
|
|
|
|
switch( segment_type )
|
|
{
|
|
case CI_DATA_SEG_SIMPLE:
|
|
|
|
/* Simple data segment */
|
|
ds_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 1, "Simple Data Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree */
|
|
ds_tree = proto_item_add_subtree( ds_item, ett_data_seg );
|
|
|
|
/* Segment size */
|
|
seg_size = tvb_get_guint8( tvb, offset + pathpos+1 )*2;
|
|
proto_tree_add_text( ds_tree, tvb, offset + pathpos+1, 1, "Data Size: %d (words)", seg_size/2 );
|
|
|
|
/* Segment data */
|
|
if( seg_size != 0 )
|
|
{
|
|
qi = proto_tree_add_text( ds_tree, tvb, offset + pathpos+2, 0, "Data: " );
|
|
|
|
for( i=0; i < seg_size/2; i ++ )
|
|
{
|
|
temp_word = tvb_get_letohs( tvb, offset + pathpos+2+(i*2) );
|
|
proto_item_append_text(qi, " 0x%04X", temp_word );
|
|
}
|
|
|
|
proto_item_set_len(qi, seg_size);
|
|
}
|
|
|
|
proto_item_set_len( ds_item, 2 + seg_size );
|
|
pathpos = pathpos + 2 + seg_size;
|
|
|
|
proto_item_append_text(epath_item, "[Data]" );
|
|
|
|
break;
|
|
|
|
case CI_DATA_SEG_SYMBOL:
|
|
|
|
/* ANSI extended symbol segment */
|
|
ds_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 1, "Extended Symbol Segment (0x%02X)", segment_type );
|
|
|
|
/* Create a sub tree */
|
|
ds_tree = proto_item_add_subtree( ds_item, ett_data_seg );
|
|
|
|
/* Segment size */
|
|
seg_size = tvb_get_guint8( tvb, offset + pathpos+1 );
|
|
proto_tree_add_text( ds_tree, tvb, offset + pathpos+1, 1, "Data Size: %d", seg_size );
|
|
|
|
/* Segment data */
|
|
if( seg_size != 0 )
|
|
{
|
|
qi = proto_tree_add_text( ds_tree, tvb, offset + pathpos + 2, seg_size, "Data: %s",
|
|
tvb_format_text(tvb, offset + pathpos + 2, seg_size ) );
|
|
|
|
proto_item_append_text(epath_item, "%s", tvb_format_text(tvb, offset + pathpos + 2, seg_size ) );
|
|
hidden_item = proto_tree_add_item( ds_tree, hf_cip_symbol, tvb, offset + pathpos + 2, seg_size, FALSE );
|
|
PROTO_ITEM_SET_HIDDEN(hidden_item);
|
|
|
|
if( seg_size %2 )
|
|
{
|
|
/* We have a PAD BYTE */
|
|
proto_tree_add_text( ds_tree, tvb, offset + pathpos + 2 + seg_size, 1, "Pad Byte (0x%02X)",
|
|
tvb_get_guint8( tvb, offset + pathpos + 2 + seg_size ) );
|
|
pathpos++;
|
|
seg_size++;
|
|
}
|
|
}
|
|
|
|
proto_item_set_len( ds_item, 2 + seg_size );
|
|
pathpos = pathpos + 2 + seg_size;
|
|
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Sub-Segment Type" );
|
|
return;
|
|
|
|
} /* End of switch sub-type */
|
|
|
|
break;
|
|
|
|
case CI_NETWORK_SEGMENT:
|
|
|
|
/* Network segment -Determine the segment sub-type */
|
|
|
|
switch( segment_type & CI_NETWORK_SEG_TYPE_MASK )
|
|
{
|
|
case CI_NETWORK_SEG_SCHEDULE:
|
|
net_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "Network Segment - Schedule" );
|
|
net_tree = proto_item_add_subtree( net_item, ett_port_path );
|
|
|
|
proto_tree_add_text( net_tree, tvb, offset + pathpos + 1, 1, "Multiplier/Phase: %02X", tvb_get_guint8( tvb, offset + pathpos + 1 ) );
|
|
|
|
/* 2 bytes of path used */
|
|
pathpos += 2;
|
|
break;
|
|
|
|
case CI_NETWORK_SEG_FIXED_TAG:
|
|
net_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "Network Segment - Fixed Tag" );
|
|
net_tree = proto_item_add_subtree( net_item, ett_port_path );
|
|
|
|
proto_tree_add_text( net_tree, tvb, offset + pathpos + 1, 1, "Fixed Tag: %02X", tvb_get_guint8( tvb, offset + pathpos + 1 ) );
|
|
|
|
/* 2 bytes of path used */
|
|
pathpos += 2;
|
|
break;
|
|
|
|
case CI_NETWORK_SEG_PROD_INHI:
|
|
net_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "Network Segment - Production Inhibit" );
|
|
net_tree = proto_item_add_subtree( net_item, ett_port_path );
|
|
|
|
proto_tree_add_text( net_tree, tvb, offset + pathpos + 1, 1, "Production Inhibit Time: %dms", tvb_get_guint8( tvb, offset + pathpos + 1 ) );
|
|
|
|
/* 2 bytes of path used */
|
|
pathpos += 2;
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Sub-Segment Type" );
|
|
return;
|
|
|
|
} /* End of switch sub-type */
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
/* Unsupported segment type */
|
|
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Segment Type" );
|
|
return;
|
|
|
|
} /* end of switch( segment_type & CI_SEGMENT_TYPE_MASK ) */
|
|
|
|
/* Next path segment */
|
|
if( pathpos < path_length )
|
|
proto_item_append_text( epath_item, ", " );
|
|
|
|
} /* end of while( pathpos < path_length ) */
|
|
|
|
} /* end of dissect_epath() */
|
|
|
|
|
|
static void
|
|
dissect_cip_data( proto_tree *item_tree, tvbuff_t *tvb, int offset, int item_length, packet_info *pinfo )
|
|
{
|
|
proto_item *pi, *rrsc_item, *ncppi, *ar_item, *temp_item, *temp_item2, *status_item;
|
|
proto_tree *temp_tree, *rrsc_tree, *ncp_tree, *cmd_data_tree, *status_tree;
|
|
int req_path_size, conn_path_size, temp_data;
|
|
unsigned char gen_status;
|
|
unsigned char add_stat_size;
|
|
unsigned char temp_byte, route_path_size;
|
|
unsigned char app_rep_size, i, collision;
|
|
int msg_req_siz, num_services, serv_offset;
|
|
|
|
/* Add Service code & Request/Response tree */
|
|
rrsc_item = proto_tree_add_text( item_tree, tvb, offset, 1, "Service: " );
|
|
rrsc_tree = proto_item_add_subtree( rrsc_item, ett_rrsc );
|
|
|
|
/* Add Request/Response */
|
|
proto_tree_add_item( rrsc_tree, hf_cip_rr, tvb, offset, 1, TRUE );
|
|
|
|
/* watch for service collisions with CCO */
|
|
temp_byte = tvb_get_guint8( tvb, offset );
|
|
collision = 0;
|
|
if ( SC_STOP_CONN == temp_byte || SC_AUDIT_CHANGE == temp_byte )
|
|
{
|
|
/* check for CCO object in path... */
|
|
temp_data = tvb_get_guint8( tvb, offset+3 );
|
|
/* F3 is the CCO */
|
|
if ( temp_data == 0xF3 )
|
|
{
|
|
collision = 1;
|
|
proto_item_append_text( rrsc_item, "%s (%s)",
|
|
val_to_str( ( tvb_get_guint8( tvb, offset ) & 0x7F ),
|
|
cip_sc_vals_cco , "Unknown Service (%x)"),
|
|
val_to_str( ( tvb_get_guint8( tvb, offset ) & 0x80 )>>7,
|
|
cip_sc_rr, "") );
|
|
}
|
|
}
|
|
|
|
if (!collision)
|
|
{
|
|
proto_item_append_text( rrsc_item, "%s (%s)",
|
|
val_to_str( ( tvb_get_guint8( tvb, offset ) & 0x7F ),
|
|
cip_sc_vals , "Unknown Service (%x)"),
|
|
val_to_str( ( tvb_get_guint8( tvb, offset ) & 0x80 )>>7,
|
|
cip_sc_rr, "") );
|
|
}
|
|
|
|
/* Add Service code */
|
|
proto_tree_add_item(rrsc_tree, hf_cip_sc, tvb, offset, 1, TRUE );
|
|
|
|
if( tvb_get_guint8( tvb, offset ) & 0x80 )
|
|
{
|
|
/* Response message */
|
|
status_item = proto_tree_add_text( item_tree, tvb, offset+2, 1, "Status: " );
|
|
status_tree = proto_item_add_subtree( status_item, ett_status_item );
|
|
|
|
/* Add general status */
|
|
gen_status = tvb_get_guint8( tvb, offset+2 );
|
|
proto_tree_add_item(status_tree, hf_cip_genstat, tvb, offset+2, 1, TRUE );
|
|
proto_item_append_text( status_item, "%s", val_to_str( ( tvb_get_guint8( tvb, offset+2 ) ),
|
|
cip_gs_vals , "Unknown Response (%x)") );
|
|
|
|
/* Add reply status to info column */
|
|
if(check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_append_str( pinfo->cinfo, COL_INFO,
|
|
val_to_str( ( tvb_get_guint8( tvb, offset+2 ) ),
|
|
cip_gs_vals , "Unknown Response (%x)") );
|
|
}
|
|
|
|
/* Add additional status size */
|
|
proto_tree_add_text( status_tree, tvb, offset+3, 1, "Additional Status Size: %d (word)",
|
|
tvb_get_guint8( tvb, offset+3 ) );
|
|
|
|
add_stat_size = tvb_get_guint8( tvb, offset+3 ) * 2;
|
|
|
|
if( add_stat_size )
|
|
{
|
|
proto_item_append_text( status_item, ", Extended:" );
|
|
|
|
/* Add additional status */
|
|
pi = proto_tree_add_text( status_tree, tvb, offset+4, add_stat_size, "Additional Status:" );
|
|
|
|
for( i=0; i < add_stat_size/2; i ++ )
|
|
{
|
|
proto_item_append_text( pi, " %s", val_to_str( ( tvb_get_letohs( tvb, offset+4+(i*2) ) ),
|
|
cip_es_vals , "Unknown Status (%x)") );
|
|
proto_item_append_text( pi, " (0x%04X)", tvb_get_letohs( tvb, offset+4+(i*2) ) );
|
|
proto_item_append_text( status_item, " 0x%04X", tvb_get_letohs( tvb, offset+4+(i*2) ) );
|
|
}
|
|
}
|
|
|
|
proto_item_set_len( status_item, 2 + add_stat_size );
|
|
|
|
/* If there is any command specific data create a sub-tree for it */
|
|
if( ( item_length-4-add_stat_size ) != 0 )
|
|
{
|
|
pi = proto_tree_add_text( item_tree, tvb, offset+4+add_stat_size, item_length-4-add_stat_size, "Command Specific data" );
|
|
cmd_data_tree = proto_item_add_subtree( pi, ett_cmd_data );
|
|
|
|
if( gen_status == CI_GRC_SUCCESS || gen_status == CI_GRC_SERVICE_ERROR )
|
|
{
|
|
/* Success responses */
|
|
|
|
if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_FWD_OPEN )
|
|
{
|
|
/* Forward open Response (Success) */
|
|
|
|
/* Display originator to target connection ID */
|
|
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 4, "O->T Network Connection ID: 0x%08X", temp_data );
|
|
|
|
/* Display target to originator connection ID */
|
|
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+4 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+4, 4, "T->O Network Connection ID: 0x%08X", temp_data );
|
|
|
|
/* Display connection serial number */
|
|
temp_data = tvb_get_letohs( tvb, offset+4+add_stat_size+8 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+8, 2, "Connection Serial Number: 0x%04X", temp_data );
|
|
|
|
/* Display the originator vendor id */
|
|
proto_tree_add_item( cmd_data_tree, hf_cip_vendor, tvb, offset+4+add_stat_size+10, 2, TRUE);
|
|
|
|
/* Display the originator serial number */
|
|
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+12 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+12, 4, "Originator Serial Number: 0x%08X", temp_data );
|
|
|
|
/* Display originator to target actual packet interval */
|
|
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+16 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+16, 4, "O->T API: %dms (0x%08X)", temp_data / 1000, temp_data );
|
|
|
|
/* Display originator to target actual packet interval */
|
|
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+20 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+20, 4, "T->O API: %dms (0x%08X)", temp_data / 1000, temp_data );
|
|
|
|
/* Display the application reply size */
|
|
app_rep_size = tvb_get_guint8( tvb, offset+4+add_stat_size+24 ) * 2;
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+24, 1, "Application Reply Size: %d (words)", app_rep_size / 2 );
|
|
|
|
/* Display the Reserved byte */
|
|
temp_byte = tvb_get_guint8( tvb, offset+4+add_stat_size+25 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+25, 1, "Reserved: 0x%02X", temp_byte );
|
|
|
|
if( app_rep_size != 0 )
|
|
{
|
|
/* Display application Reply data */
|
|
ar_item = proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+26, app_rep_size, "Application Reply:" );
|
|
|
|
for( i=0; i < app_rep_size; i++ )
|
|
{
|
|
temp_byte = tvb_get_guint8( tvb, offset+4+add_stat_size+26+i );
|
|
proto_item_append_text(ar_item, " 0x%02X", temp_byte );
|
|
}
|
|
|
|
} /* End of if reply data */
|
|
|
|
} /* End of if forward open response */
|
|
else if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_FWD_CLOSE )
|
|
{
|
|
/* Forward close response (Success) */
|
|
|
|
/* Display connection serial number */
|
|
temp_data = tvb_get_letohs( tvb, offset+4+add_stat_size );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 2, "Connection Serial Number: 0x%04X", temp_data );
|
|
|
|
/* Display the originator vendor id */
|
|
proto_tree_add_item( cmd_data_tree, hf_cip_vendor, tvb, offset+4+add_stat_size+2, 2, TRUE);
|
|
|
|
/* Display the originator serial number */
|
|
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+4 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+4, 4, "Originator Serial Number: 0x%08X", temp_data );
|
|
|
|
/* Display the application reply size */
|
|
app_rep_size = tvb_get_guint8( tvb, offset+4+add_stat_size+8 ) * 2;
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+8, 1, "Application Reply Size: %d (words)", app_rep_size / 2 );
|
|
|
|
/* Display the Reserved byte */
|
|
temp_byte = tvb_get_guint8( tvb, offset+4+add_stat_size+9 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+9, 1, "Reserved: 0x%02X", temp_byte );
|
|
|
|
if( app_rep_size != 0 )
|
|
{
|
|
/* Display application Reply data */
|
|
ar_item = proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+10, app_rep_size, "Application Reply:" );
|
|
|
|
for( i=0; i < app_rep_size; i ++ )
|
|
{
|
|
temp_byte = tvb_get_guint8( tvb, offset+4+add_stat_size+10+i );
|
|
proto_item_append_text(ar_item, " 0x%02X", temp_byte );
|
|
}
|
|
|
|
} /* End of if reply data */
|
|
|
|
} /* End of if forward close response */
|
|
else if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_UNCON_SEND )
|
|
{
|
|
/* Unconnected send response (Success) */
|
|
|
|
/* Display service response data */
|
|
proto_tree_add_item(cmd_data_tree, hf_cip_data, tvb, offset+4+add_stat_size, item_length-4-add_stat_size, FALSE);
|
|
}
|
|
else if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_MULT_SERV_PACK )
|
|
{
|
|
/* Multiple Service Reply (Success)*/
|
|
|
|
/* Add number of replies */
|
|
num_services = tvb_get_letohs( tvb, offset+4+add_stat_size );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 2, "Number of Replies: %d", num_services );
|
|
|
|
/* Add replies */
|
|
temp_item = proto_tree_add_text( cmd_data_tree, tvb, offset+2+add_stat_size+4, num_services*2, "Offsets: " );
|
|
|
|
for( i=0; i < num_services; i++ )
|
|
{
|
|
int serv_length;
|
|
|
|
serv_offset = tvb_get_letohs( tvb, offset+6+add_stat_size+(i*2) );
|
|
|
|
if( i == (num_services-1) )
|
|
{
|
|
/* Last service to add */
|
|
proto_item_append_text(temp_item, "%d", serv_offset );
|
|
serv_length = item_length-add_stat_size-serv_offset-4;
|
|
}
|
|
else
|
|
{
|
|
proto_item_append_text(temp_item, "%d, ", serv_offset );
|
|
serv_length = tvb_get_letohs( tvb, offset+6+add_stat_size+((i+1)*2) ) - serv_offset;
|
|
}
|
|
|
|
temp_item2 = proto_tree_add_text( cmd_data_tree, tvb, offset+serv_offset+4, serv_length, "Service Reply #%d", i+1 );
|
|
temp_tree = proto_item_add_subtree( temp_item2, ett_mult_ser );
|
|
|
|
/*
|
|
** We call our selves again to disect embedded packet
|
|
*/
|
|
|
|
if(check_col(pinfo->cinfo, COL_INFO))
|
|
col_append_str( pinfo->cinfo, COL_INFO, ", ");
|
|
|
|
dissect_cip_data( temp_tree, tvb, offset+serv_offset+4, serv_length, pinfo );
|
|
}
|
|
} /* End if Multiple service Packet */
|
|
else if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_GET_ATT_LIST )
|
|
{
|
|
/* Get Attribute List Reply (Success)*/
|
|
|
|
int att_count;
|
|
|
|
/* Add Attribute Count */
|
|
att_count = tvb_get_letohs( tvb, offset+4+add_stat_size );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 2, "Attribute Count: %d", att_count );
|
|
|
|
/* Add the data */
|
|
proto_tree_add_item(cmd_data_tree, hf_cip_data, tvb, offset+6+add_stat_size, item_length-6-add_stat_size, FALSE);
|
|
} /* End if Multiple service Packet */
|
|
else
|
|
{
|
|
/* Add data */
|
|
proto_tree_add_item(cmd_data_tree, hf_cip_data, tvb, offset+4+add_stat_size, item_length-4-add_stat_size, FALSE);
|
|
} /* end of check service code */
|
|
|
|
}
|
|
else
|
|
{
|
|
/* Error responses */
|
|
|
|
if( ( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_FWD_OPEN ) ||
|
|
( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_FWD_CLOSE ) )
|
|
{
|
|
/* Forward open and forward close error response look the same */
|
|
|
|
/* Display connection serial number */
|
|
temp_data = tvb_get_letohs( tvb, offset+4+add_stat_size );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 2, "Connection Serial Number: 0x%04X", temp_data );
|
|
|
|
/* Display the originator vendor id */
|
|
proto_tree_add_item( cmd_data_tree, hf_cip_vendor, tvb, offset+4+add_stat_size+2, 2, TRUE);
|
|
|
|
/* Display the originator serial number */
|
|
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+4 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+4, 4, "Originator Serial Number: 0x%08X", temp_data );
|
|
|
|
/* Display remaining path size */
|
|
temp_data = tvb_get_guint8( tvb, offset+4+add_stat_size+8 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+8, 1, "Remaining Path Size: %d", temp_data );
|
|
|
|
/* Display reserved data */
|
|
temp_data = tvb_get_guint8( tvb, offset+4+add_stat_size+9 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+9, 1, "Reserved: 0x%02X", temp_data );
|
|
}
|
|
else if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_UNCON_SEND )
|
|
{
|
|
/* Unconnected send response (Unsuccess) */
|
|
|
|
/* Display remaining path size */
|
|
temp_data = tvb_get_guint8( tvb, offset+4+add_stat_size);
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 1, "Remaining Path Size: %d", temp_data );
|
|
}
|
|
else
|
|
{
|
|
/* Add data */
|
|
proto_tree_add_item(cmd_data_tree, hf_cip_data, tvb, offset+4+add_stat_size, item_length-4-add_stat_size, FALSE);
|
|
}
|
|
|
|
} /* end of if-else( CI_CRC_SUCCESS ) */
|
|
|
|
} /* End of if command-specific data present */
|
|
|
|
} /* End of if reply */
|
|
else
|
|
{
|
|
/* Request message */
|
|
|
|
/* Add service to info column */
|
|
if(check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_append_str( pinfo->cinfo, COL_INFO,
|
|
val_to_str( ( tvb_get_guint8( tvb, offset ) & 0x7F ),
|
|
cip_sc_vals , "Unknown Service (%x)") );
|
|
}
|
|
|
|
/* Add path size to tree */
|
|
req_path_size = tvb_get_guint8( tvb, offset+1 )*2;
|
|
proto_tree_add_text( item_tree, tvb, offset+1, 1, "Request Path Size: %d (words)", req_path_size/2 );
|
|
|
|
/* Add the epath */
|
|
pi = proto_tree_add_text(item_tree, tvb, offset+2, req_path_size, "Request Path: ");
|
|
dissect_epath( tvb, pi, offset+2, req_path_size );
|
|
|
|
/* If there is any command specific data creat a sub-tree for it */
|
|
if( (item_length-req_path_size-2) != 0 )
|
|
{
|
|
|
|
pi = proto_tree_add_text( item_tree, tvb, offset+2+req_path_size, item_length-req_path_size-2, "Command Specific Data" );
|
|
cmd_data_tree = proto_item_add_subtree( pi, ett_cmd_data );
|
|
|
|
/* Check what service code that recived */
|
|
|
|
if( tvb_get_guint8( tvb, offset ) == SC_FWD_OPEN )
|
|
{
|
|
/* Forward open Request*/
|
|
|
|
/* Display the priority/tick timer */
|
|
temp_byte = tvb_get_guint8( tvb, offset+2+req_path_size );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 1, "Priority/Time_tick: 0x%02X", temp_byte );
|
|
|
|
/* Display the time-out ticks */
|
|
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+1 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+1, 1, "Time-out_ticks: %d", temp_data );
|
|
|
|
/* Display the actual time out */
|
|
temp_data = ( 1 << ( temp_byte & 0x0F ) ) * temp_data;
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Actual Time Out: %dms", temp_data );
|
|
|
|
/* Display originator to taget connection ID */
|
|
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+2 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+2, 4, "O->T Network Connection ID: 0x%08X", temp_data );
|
|
|
|
/* Display target to originator connection ID */
|
|
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+6 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+6, 4, "T->O Network Connection ID: 0x%08X", temp_data );
|
|
|
|
/* Display connection serial number */
|
|
temp_data = tvb_get_letohs( tvb, offset+2+req_path_size+10 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+10, 2, "Connection Serial Number: 0x%04X", temp_data );
|
|
|
|
/* Display the originator vendor id */
|
|
proto_tree_add_item( cmd_data_tree, hf_cip_vendor, tvb, offset+2+req_path_size+12, 2, TRUE);
|
|
|
|
/* Display the originator serial number */
|
|
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+14 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+14, 4, "Originator Serial Number: 0x%08X", temp_data );
|
|
|
|
/* Display the timeout multiplier */
|
|
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+18 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+18, 1, "Connection Timeout Multiplier: %s (%d)", val_to_str( temp_data, cip_con_time_mult_vals , "Reserved" ), temp_data );
|
|
|
|
/* Put out an indicator for the reserved bytes */
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+19, 3, "Reserved Data" );
|
|
|
|
/* Display originator to target requested packet interval */
|
|
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+22 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+22, 4, "O->T RPI: %dms (0x%08X)", temp_data / 1000, temp_data );
|
|
|
|
/* Display originator to target network connection patameterts, in a tree */
|
|
temp_data = tvb_get_letohs( tvb, offset+2+req_path_size+26 );
|
|
ncppi = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+26, 2, "O->T Network Connection Parameters: 0x%04X", temp_data );
|
|
ncp_tree = proto_item_add_subtree(ncppi, ett_ncp);
|
|
|
|
/* Add the data to the tree */
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_own,
|
|
tvb, offset+2+req_path_size+26, 2, TRUE );
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_typ,
|
|
tvb, offset+2+req_path_size+26, 2, TRUE );
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_prio,
|
|
tvb, offset+2+req_path_size+26, 2, TRUE );
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_fixed_var,
|
|
tvb, offset+2+req_path_size+26, 2, TRUE );
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_con_size,
|
|
tvb, offset+2+req_path_size+26, 2, TRUE );
|
|
|
|
/* Display target to originator requested packet interval */
|
|
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+28 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+28, 4, "T->O RPI: %dms (0x%08X)", temp_data / 1000, temp_data );
|
|
|
|
/* Display target to originator network connection patameterts, in a tree */
|
|
temp_data = tvb_get_letohs( tvb, offset+2+req_path_size+32 );
|
|
ncppi = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+32, 2, "T->O Network Connection Parameters: 0x%04X", temp_data );
|
|
ncp_tree = proto_item_add_subtree(ncppi, ett_ncp);
|
|
|
|
/* Add the data to the tree */
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_own,
|
|
tvb, offset+2+req_path_size+32, 2, TRUE );
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_typ,
|
|
tvb, offset+2+req_path_size+32, 2, TRUE );
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_prio,
|
|
tvb, offset+2+req_path_size+32, 2, TRUE );
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_fixed_var,
|
|
tvb, offset+2+req_path_size+32, 2, TRUE );
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_con_size,
|
|
tvb, offset+2+req_path_size+32, 2, TRUE );
|
|
|
|
/* Transport type/trigger in tree*/
|
|
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+34 );
|
|
|
|
ncppi = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+34, 1, "Transport Type/Trigger: 0x%02X", temp_data );
|
|
ncp_tree = proto_item_add_subtree(ncppi, ett_ncp);
|
|
|
|
/* Add the data to the tree */
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_dir,
|
|
tvb, offset+2+req_path_size+34, 1, TRUE );
|
|
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_trigg,
|
|
tvb, offset+2+req_path_size+34, 1, TRUE );
|
|
|
|
proto_tree_add_item(ncp_tree, hf_cip_fwo_class,
|
|
tvb, offset+2+req_path_size+34, 1, TRUE );
|
|
|
|
/* Add path size */
|
|
conn_path_size = tvb_get_guint8( tvb, offset+2+req_path_size+35 )*2;
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+35, 1, "Connection Path Size: %d (words)", conn_path_size / 2 );
|
|
|
|
/* Add the epath */
|
|
pi = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+36, conn_path_size, "Connection Path: ");
|
|
dissect_epath( tvb, pi, offset+2+req_path_size+36, conn_path_size );
|
|
}
|
|
else if( tvb_get_guint8( tvb, offset ) == SC_FWD_CLOSE && ! collision)
|
|
{
|
|
/* Forward Close Request */
|
|
|
|
/* Display the priority/tick timer */
|
|
temp_byte = tvb_get_guint8( tvb, offset+2+req_path_size );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 1, "Priority/Time_tick: 0x%02X", temp_byte );
|
|
|
|
/* Display the time-out ticks */
|
|
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+1 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+1, 1, "Time-out_ticks: %d", temp_data );
|
|
|
|
/* Display the actual time out */
|
|
temp_data = ( 1 << ( temp_byte & 0x0F ) ) * temp_data;
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Actual Time Out: %dms", temp_data );
|
|
|
|
/* Display connection serial number */
|
|
temp_data = tvb_get_letohs( tvb, offset+2+req_path_size+2 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+2, 2, "Connection Serial Number: 0x%04X", temp_data );
|
|
|
|
/* Display the originator vendor id */
|
|
proto_tree_add_item( cmd_data_tree, hf_cip_vendor, tvb, offset+2+req_path_size+4, 2, TRUE);
|
|
|
|
/* Display the originator serial number */
|
|
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+6 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+6, 4, "Originator Serial Number: 0x%08X", temp_data );
|
|
|
|
/* Add the path size */
|
|
conn_path_size = tvb_get_guint8( tvb, offset+2+req_path_size+10 )*2;
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+10, 1, "Connection Path Size: %d (words)", conn_path_size / 2 );
|
|
|
|
/* Add the reserved byte */
|
|
temp_byte = tvb_get_guint8( tvb, offset+2+req_path_size+11 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+11, 1, "Reserved: 0x%02X", temp_byte );
|
|
|
|
/* Add the EPATH */
|
|
pi = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+12, conn_path_size, "Connection Path: ");
|
|
dissect_epath( tvb, pi, offset+2+req_path_size+12, conn_path_size );
|
|
|
|
} /* End of forward close */
|
|
else if( tvb_get_guint8( tvb, offset ) == SC_UNCON_SEND )
|
|
{
|
|
/* check for collision */
|
|
if ( collision )
|
|
{
|
|
/* Audit Change */
|
|
|
|
temp_data = tvb_get_letohs( tvb, offset+2+req_path_size );
|
|
temp_item = proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Change Type: ");
|
|
|
|
if (temp_data == 0)
|
|
proto_item_append_text(temp_item, "Full" );
|
|
else if (temp_data == 1)
|
|
proto_item_append_text(temp_item, "Incremental" );
|
|
else
|
|
proto_item_append_text(temp_item, "Reserved" );
|
|
}
|
|
else
|
|
{
|
|
/* Unconnected send */
|
|
|
|
/* Display the priority/tick timer */
|
|
temp_byte = tvb_get_guint8( tvb, offset+2+req_path_size );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 1, "Priority/Time_tick: 0x%02X", temp_byte );
|
|
|
|
/* Display the time-out ticks */
|
|
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+1 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+1, 1, "Time-out_ticks: %d", temp_data );
|
|
|
|
/* Display the actual time out */
|
|
temp_data = ( 1 << ( temp_byte & 0x0F ) ) * temp_data;
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Actual Time Out: %dms", temp_data );
|
|
|
|
/* Message request size */
|
|
msg_req_siz = tvb_get_letohs( tvb, offset+2+req_path_size+2 );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+2, 2, "Message Request Size: 0x%04X", msg_req_siz );
|
|
|
|
/* Message Request */
|
|
temp_item = proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+4, msg_req_siz, "Message Request" );
|
|
temp_tree = proto_item_add_subtree(temp_item, ett_mes_req );
|
|
|
|
/*
|
|
** We call our selves again to disect embedded packet
|
|
*/
|
|
|
|
if(check_col(pinfo->cinfo, COL_INFO))
|
|
col_append_str( pinfo->cinfo, COL_INFO, ": ");
|
|
|
|
dissect_cip_data( temp_tree, tvb, offset+2+req_path_size+4, msg_req_siz, pinfo );
|
|
|
|
if( msg_req_siz % 2 )
|
|
{
|
|
/* Pad byte */
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+4+msg_req_siz, 1, "Pad Byte (0x%02X)",
|
|
tvb_get_guint8( tvb, offset+2+req_path_size+4+msg_req_siz ) );
|
|
msg_req_siz++; /* include the padding */
|
|
}
|
|
|
|
/* Route Path Size */
|
|
route_path_size = tvb_get_guint8( tvb, offset+2+req_path_size+4+msg_req_siz )*2;
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+4+msg_req_siz, 1, "Route Path Size: %d (words)", route_path_size/2 );
|
|
|
|
/* Reserved */
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+5+msg_req_siz, 1, "Reserved (0x%02X)",
|
|
tvb_get_guint8( tvb, offset+2+req_path_size+5+msg_req_siz ) );
|
|
|
|
/* Route Path */
|
|
temp_item = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+6+msg_req_siz, route_path_size, "Route Path: ");
|
|
dissect_epath( tvb, temp_item, offset+2+req_path_size+6+msg_req_siz, route_path_size );
|
|
}
|
|
|
|
} /* End if unconnected send */
|
|
else if( tvb_get_guint8( tvb, offset ) == SC_MULT_SERV_PACK )
|
|
{
|
|
/* Multiple service packet */
|
|
|
|
/* Add number of services */
|
|
num_services = tvb_get_letohs( tvb, offset+2+req_path_size );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Number of Services: %d", num_services );
|
|
|
|
/* Add services */
|
|
temp_item = proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+2, num_services*2, "Offsets: " );
|
|
|
|
for( i=0; i < num_services; i++ )
|
|
{
|
|
int serv_length;
|
|
|
|
serv_offset = tvb_get_letohs( tvb, offset+4+req_path_size+(i*2) );
|
|
|
|
if( i == (num_services-1) )
|
|
{
|
|
/* Last service to add */
|
|
serv_length = item_length-2-req_path_size-serv_offset;
|
|
proto_item_append_text(temp_item, "%d", serv_offset );
|
|
}
|
|
else
|
|
{
|
|
serv_length = tvb_get_letohs( tvb, offset+4+req_path_size+((i+1)*2) ) - serv_offset;
|
|
proto_item_append_text(temp_item, "%d, ", serv_offset );
|
|
}
|
|
|
|
temp_item2 = proto_tree_add_text( cmd_data_tree, tvb, offset+serv_offset+6, serv_length, "Service Packet #%d", i+1 );
|
|
temp_tree = proto_item_add_subtree( temp_item2, ett_mult_ser );
|
|
|
|
/*
|
|
** We call our selves again to disect embedded packet
|
|
*/
|
|
|
|
if(check_col(pinfo->cinfo, COL_INFO))
|
|
col_append_str( pinfo->cinfo, COL_INFO, ", ");
|
|
|
|
dissect_cip_data( temp_tree, tvb, offset+serv_offset+6, serv_length, pinfo );
|
|
}
|
|
} /* End if Multiple service Packet */
|
|
else if( tvb_get_guint8( tvb, offset ) == SC_GET_ATT_LIST )
|
|
{
|
|
/* Get attribute list request */
|
|
|
|
int att_count;
|
|
|
|
/* Add number of services */
|
|
att_count = tvb_get_letohs( tvb, offset+2+req_path_size );
|
|
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Attribute Count: %d", att_count );
|
|
|
|
/* Add Attribute List */
|
|
temp_item = proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+2, att_count*2, "Attribute List: " );
|
|
|
|
for( i=0; i < att_count; i++ )
|
|
{
|
|
if( i == (att_count-1) )
|
|
proto_item_append_text(temp_item, "%d",tvb_get_letohs( tvb, offset+4+req_path_size+(i*2) ) );
|
|
else
|
|
proto_item_append_text(temp_item, "%d, ",tvb_get_letohs( tvb, offset+4+req_path_size+(i*2) ) );
|
|
}
|
|
|
|
} /* End of Get attribute list request */
|
|
else if ( tvb_get_guint8( tvb, offset ) == SC_CHANGE_COMPLETE )
|
|
{
|
|
/* Change complete request */
|
|
|
|
temp_data = tvb_get_letohs( tvb, offset+2+req_path_size );
|
|
temp_item = proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Change Type: ");
|
|
|
|
if (temp_data == 0)
|
|
proto_item_append_text(temp_item, "Full" );
|
|
else if (temp_data == 1)
|
|
proto_item_append_text(temp_item, "Incremental" );
|
|
else
|
|
proto_item_append_text(temp_item, "Reserved" );
|
|
}
|
|
else
|
|
{
|
|
/* Add data */
|
|
proto_tree_add_item(cmd_data_tree, hf_cip_data, tvb, offset+2+req_path_size, item_length-req_path_size-2, FALSE);
|
|
|
|
} /* End of check service code */
|
|
|
|
} /* End of if command-specific data present */
|
|
|
|
} /* End of if-else( request ) */
|
|
|
|
} /* End of dissect_cip_data() */
|
|
|
|
|
|
static int
|
|
dissect_cip(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_item *ti;
|
|
proto_tree *cip_tree = NULL;
|
|
|
|
/* Make entries in Protocol column and Info column on summary display */
|
|
if( check_col( pinfo->cinfo, COL_PROTOCOL ) )
|
|
col_set_str( pinfo->cinfo, COL_PROTOCOL, "CIP" );
|
|
|
|
if (check_col( pinfo->cinfo, COL_INFO ) )
|
|
col_clear( pinfo->cinfo, COL_INFO );
|
|
|
|
if( tree )
|
|
{
|
|
/* Create display subtree for the protocol */
|
|
ti = proto_tree_add_item(tree, proto_cip, tvb, 0, -1, FALSE);
|
|
cip_tree = proto_item_add_subtree( ti, ett_cip );
|
|
}
|
|
|
|
dissect_cip_data( cip_tree, tvb, 0, tvb_length(tvb), pinfo );
|
|
|
|
return tvb_length(tvb);
|
|
}
|
|
|
|
|
|
void
|
|
proto_register_cip(void)
|
|
{
|
|
/* Setup list of header fields */
|
|
static hf_register_info hf[] = {
|
|
|
|
{ &hf_cip_rr,
|
|
{ "Request/Response", "cip.rr",
|
|
FT_UINT8, BASE_HEX, VALS(cip_sc_rr), 0x80,
|
|
"Request or Response message", HFILL }
|
|
},
|
|
{ &hf_cip_sc,
|
|
{ "Service", "cip.sc",
|
|
FT_UINT8, BASE_HEX, VALS(cip_sc_vals), 0x7F,
|
|
"Service Code", HFILL }
|
|
},
|
|
{ &hf_cip_epath,
|
|
{ "EPath", "cip.epath",
|
|
FT_BYTES, BASE_HEX, NULL, 0,
|
|
"EPath", HFILL }
|
|
},
|
|
{ &hf_cip_genstat,
|
|
{ "General Status", "cip.genstat",
|
|
FT_UINT8, BASE_HEX, VALS(cip_gs_vals), 0,
|
|
"General Status", HFILL }
|
|
},
|
|
{ &hf_cip_port,
|
|
{ "Port", "cip.port",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Port Identifier", HFILL }
|
|
},
|
|
{ &hf_cip_link_address_byte,
|
|
{ "Link Address", "cip.linkaddress",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Link Address", HFILL }
|
|
},
|
|
{ &hf_cip_link_address_string,
|
|
{ "Link Address", "cip.linkaddress",
|
|
FT_STRING, BASE_NONE, NULL, 0,
|
|
"Link Address", HFILL }
|
|
},
|
|
{ &hf_cip_class8,
|
|
{ "Class", "cip.class",
|
|
FT_UINT8, BASE_HEX, VALS(cip_class_names_vals), 0,
|
|
"Class", HFILL }
|
|
},
|
|
{ &hf_cip_class16,
|
|
{ "Class", "cip.class",
|
|
FT_UINT16, BASE_HEX, VALS(cip_class_names_vals), 0,
|
|
"Class", HFILL }
|
|
},
|
|
{ &hf_cip_class32,
|
|
{ "Class", "cip.class",
|
|
FT_UINT32, BASE_HEX, VALS(cip_class_names_vals), 0,
|
|
"Class", HFILL }
|
|
},
|
|
{ &hf_cip_instance8,
|
|
{ "Instance", "cip.instance",
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
"Instance", HFILL }
|
|
},
|
|
{ &hf_cip_instance16,
|
|
{ "Instance", "cip.instance",
|
|
FT_UINT16, BASE_HEX, NULL, 0,
|
|
"Instance", HFILL }
|
|
},
|
|
{ &hf_cip_instance32,
|
|
{ "Instance", "cip.instance",
|
|
FT_UINT32, BASE_HEX, NULL, 0,
|
|
"Instance", HFILL }
|
|
},
|
|
{ &hf_cip_attribute8,
|
|
{ "Attribute", "cip.attribute",
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
"Attribute", HFILL }
|
|
},
|
|
{ &hf_cip_attribute16,
|
|
{ "Attribute", "cip.attribute",
|
|
FT_UINT16, BASE_HEX, NULL, 0,
|
|
"Attribute", HFILL }
|
|
},
|
|
{ &hf_cip_attribute32,
|
|
{ "Attribute", "cip.attribute",
|
|
FT_UINT32, BASE_HEX, NULL, 0,
|
|
"Attribute", HFILL }
|
|
},
|
|
{ &hf_cip_conpoint8,
|
|
{ "Connection Point", "cip.connpoint",
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
"Connection Point", HFILL }
|
|
},
|
|
{ &hf_cip_conpoint16,
|
|
{ "Connection Point", "cip.connpoint",
|
|
FT_UINT16, BASE_HEX, NULL, 0,
|
|
"Connection Point", HFILL }
|
|
},
|
|
{ &hf_cip_conpoint32,
|
|
{ "Connection Point", "cip.connpoint",
|
|
FT_UINT16, BASE_HEX, NULL, 0,
|
|
"Connection Point", HFILL }
|
|
},
|
|
{ &hf_cip_symbol,
|
|
{ "Symbol", "cip.symbol",
|
|
FT_STRING, BASE_NONE, NULL, 0,
|
|
"ANSI Extended Symbol Segment", HFILL }
|
|
},
|
|
{ &hf_cip_vendor,
|
|
{ "Vendor ID", "cip.vendor",
|
|
FT_UINT16, BASE_HEX, VALS(cip_vendor_vals), 0,
|
|
"Vendor ID", HFILL }
|
|
},
|
|
{ &hf_cip_devtype,
|
|
{ "Device Type", "cip.devtype",
|
|
FT_UINT16, BASE_DEC, VALS(cip_devtype_vals), 0,
|
|
"Device Type", HFILL }
|
|
},
|
|
{ &hf_cip_fwo_comp,
|
|
{ "Compatibility", "cip.fwo.cmp",
|
|
FT_UINT8, BASE_HEX, VALS(cip_com_bit_vals), 0x80,
|
|
"Fwd Open: Compatibility bit", HFILL }
|
|
},
|
|
{ &hf_cip_fwo_mrev,
|
|
{ "Major Revision", "cip.fwo.major",
|
|
FT_UINT8, BASE_DEC, NULL, 0x7F,
|
|
"Fwd Open: Major Revision", HFILL }
|
|
},
|
|
{ &hf_cip_fwo_con_size,
|
|
{ "Connection Size", "cip.fwo.consize",
|
|
FT_UINT16, BASE_DEC, NULL, 0x01FF,
|
|
"Fwd Open: Connection size", HFILL }
|
|
},
|
|
{ &hf_cip_fwo_fixed_var,
|
|
{ "Connection Size Type", "cip.fwo.f_v",
|
|
FT_UINT16, BASE_DEC, VALS(cip_con_fw_vals), 0x0200,
|
|
"Fwd Open: Fixed or variable connection size", HFILL }
|
|
},
|
|
{ &hf_cip_fwo_prio,
|
|
{ "Priority", "cip.fwo.prio",
|
|
FT_UINT16, BASE_DEC, VALS(cip_con_prio_vals), 0x0C00,
|
|
"Fwd Open: Connection priority", HFILL }
|
|
},
|
|
{ &hf_cip_fwo_typ,
|
|
{ "Connection Type", "cip.fwo.type",
|
|
FT_UINT16, BASE_DEC, VALS(cip_con_type_vals), 0x6000,
|
|
"Fwd Open: Connection type", HFILL }
|
|
},
|
|
{ &hf_cip_fwo_own,
|
|
{ "Owner", "cip.fwo.owner",
|
|
FT_UINT16, BASE_DEC, VALS(cip_con_owner_vals), 0x8000,
|
|
"Fwd Open: Redundant owner bit", HFILL }
|
|
},
|
|
{ &hf_cip_fwo_dir,
|
|
{ "Direction", "cip.fwo.dir",
|
|
FT_UINT8, BASE_DEC, VALS(cip_con_dir_vals), 0x80,
|
|
"Fwd Open: Direction", HFILL }
|
|
},
|
|
{ &hf_cip_fwo_trigg,
|
|
{ "Trigger", "cip.fwo.trigger",
|
|
FT_UINT8, BASE_DEC, VALS(cip_con_trigg_vals), 0x70,
|
|
"Fwd Open: Production trigger", HFILL }
|
|
},
|
|
{ &hf_cip_fwo_class,
|
|
{ "Class", "cip.fwo.transport",
|
|
FT_UINT8, BASE_DEC, VALS(cip_con_class_vals), 0x0F,
|
|
"Fwd Open: Transport Class", HFILL }
|
|
},
|
|
{ &hf_cip_data,
|
|
{ "Data", "cip.data",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Data", HFILL }
|
|
}
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_cip,
|
|
&ett_path,
|
|
&ett_ekey_path,
|
|
&ett_rrsc,
|
|
&ett_mcsc,
|
|
&ett_ncp,
|
|
&ett_cia_path,
|
|
&ett_data_seg,
|
|
&ett_lsrcf,
|
|
&ett_mes_req,
|
|
&ett_cmd_data,
|
|
&ett_port_path,
|
|
&ett_mult_ser,
|
|
&ett_path,
|
|
&ett_status_item
|
|
};
|
|
|
|
/* Register the protocol name and description */
|
|
proto_cip = proto_register_protocol("Common Industrial Protocol",
|
|
"CIP", "cip");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_cip, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
} /* end of proto_register_cip() */
|
|
|
|
|
|
void
|
|
proto_reg_handoff_cip(void)
|
|
{
|
|
dissector_handle_t cip_handle;
|
|
|
|
/* Create dissector handles */
|
|
cip_handle = new_create_dissector_handle( dissect_cip, proto_cip );
|
|
|
|
/* Register for UCMM CIP data, using EtherNet/IP SendRRData service*/
|
|
dissector_add( "enip.srrd.iface", ENIP_CIP_INTERFACE, cip_handle );
|
|
|
|
/* Register for Connected CIP data, using EtherNet/IP SendUnitData service*/
|
|
dissector_add( "enip.sud.iface", ENIP_CIP_INTERFACE, cip_handle );
|
|
|
|
} /* end of proto_reg_handoff_cip() */
|