forked from osmocom/wireshark
2417 lines
103 KiB
C
2417 lines
103 KiB
C
/* packet-enip.c
|
|
* Routines for EtherNet/IP (Industrial Protocol) dissection
|
|
* EtherNet/IP Home: www.odva.org
|
|
*
|
|
* Copyright 2003-2004
|
|
* Magnus Hansson <mah@hms.se>
|
|
* Joakim Wiberg <jow@hms.se>
|
|
*
|
|
* Conversation data support for CIP
|
|
* Jan Bartels, Siempelkamp Maschinen- und Anlagenbau GmbH & Co. KG
|
|
* Copyright 2007
|
|
*
|
|
* Ethernet/IP object support
|
|
* Michael Mann
|
|
* Copyright 2011
|
|
*
|
|
* $Id$
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <glib.h>
|
|
|
|
#include <epan/packet.h>
|
|
#include <epan/emem.h>
|
|
#include <epan/conversation.h>
|
|
#include <epan/prefs.h>
|
|
#include <epan/etypes.h>
|
|
#include <epan/expert.h>
|
|
#include "packet-tcp.h"
|
|
#include "packet-cip.h"
|
|
#include "packet-enip.h"
|
|
|
|
/* Communication Ports */
|
|
#define ENIP_ENCAP_PORT 44818 /* EtherNet/IP located on port 44818 */
|
|
#define ENIP_IO_PORT 2222 /* EtherNet/IP IO located on port 2222 */
|
|
|
|
/* EtherNet/IP function codes */
|
|
#define NOP 0x0000
|
|
#define LIST_SERVICES 0x0004
|
|
#define LIST_IDENTITY 0x0063
|
|
#define LIST_INTERFACES 0x0064
|
|
#define REGISTER_SESSION 0x0065
|
|
#define UNREGISTER_SESSION 0x0066
|
|
#define SEND_RR_DATA 0x006F
|
|
#define SEND_UNIT_DATA 0x0070
|
|
#define INDICATE_STATUS 0x0072
|
|
#define CANCEL 0x0073
|
|
|
|
/* EtherNet/IP status codes */
|
|
#define SUCCESS 0x0000
|
|
#define INVALID_CMD 0x0001
|
|
#define NO_RESOURCES 0x0002
|
|
#define INCORRECT_DATA 0x0003
|
|
#define INVALID_SESSION 0x0064
|
|
#define INVALID_LENGTH 0x0065
|
|
#define UNSUPPORTED_PROT_REV 0x0069
|
|
|
|
/* EtherNet/IP Common Data Format Type IDs */
|
|
#define CDF_NULL 0x0000
|
|
#define LIST_IDENTITY_RESP 0x000C
|
|
#define CONNECTION_BASED 0x00A1
|
|
#define CONNECTION_TRANSPORT 0x00B1
|
|
#define UNCONNECTED_MSG 0x00B2
|
|
#define LIST_SERVICES_RESP 0x0100
|
|
#define SOCK_ADR_INFO_OT 0x8000
|
|
#define SOCK_ADR_INFO_TO 0x8001
|
|
#define SEQ_ADDRESS 0x8002
|
|
|
|
|
|
/* Initialize the protocol and registered fields */
|
|
static int proto_enip = -1;
|
|
|
|
static int hf_enip_command = -1;
|
|
static int hf_enip_length = -1;
|
|
static int hf_enip_options = -1;
|
|
static int hf_enip_sendercontex = -1;
|
|
static int hf_enip_status = -1;
|
|
static int hf_enip_session = -1;
|
|
static int hf_enip_encapver = -1;
|
|
static int hf_enip_sinfamily = -1;
|
|
static int hf_enip_sinport = -1;
|
|
static int hf_enip_sinaddr = -1;
|
|
static int hf_enip_sinzero = -1;
|
|
static int hf_enip_timeout = -1;
|
|
static int hf_enip_encap_data = -1;
|
|
|
|
static int hf_enip_lir_vendor = -1;
|
|
static int hf_enip_lir_devtype = -1;
|
|
static int hf_enip_lir_prodcode = -1;
|
|
static int hf_enip_lir_revision = -1;
|
|
static int hf_enip_lir_status = -1;
|
|
static int hf_enip_lir_serial = -1;
|
|
static int hf_enip_lir_namelen = -1;
|
|
static int hf_enip_lir_name = -1;
|
|
static int hf_enip_lir_state = -1;
|
|
|
|
static int hf_enip_lsr_capaflags = -1;
|
|
static int hf_enip_lsr_tcp = -1;
|
|
static int hf_enip_lsr_udp = -1;
|
|
static int hf_enip_lsr_servicename = -1;
|
|
|
|
static int hf_enip_rs_version = -1;
|
|
static int hf_enip_rs_optionflags = -1;
|
|
|
|
static int hf_enip_srrd_ifacehnd = -1;
|
|
|
|
static int hf_enip_sud_ifacehnd = -1;
|
|
|
|
static int hf_enip_cpf_itemcount = -1;
|
|
static int hf_enip_cpf_typeid = -1;
|
|
static int hf_enip_cpf_length = -1;
|
|
static int hf_enip_cpf_cdi_seqcnt = -1;
|
|
static int hf_enip_cpf_cdi_32bitheader = -1;
|
|
static int hf_enip_cpf_cdi_32bitheader_roo = -1;
|
|
static int hf_enip_cpf_cdi_32bitheader_coo = -1;
|
|
static int hf_enip_cpf_cdi_32bitheader_run_idle = -1;
|
|
static int hf_enip_cpf_cai_connid = -1;
|
|
static int hf_enip_cpf_sai_connid = -1;
|
|
static int hf_enip_cpf_sai_seqnum = -1;
|
|
|
|
static int hf_enip_cpf_data = -1;
|
|
|
|
static int hf_enip_response_in = -1;
|
|
static int hf_enip_response_to = -1;
|
|
static int hf_enip_time = -1;
|
|
static int hf_enip_connection_transport_data = -1;
|
|
|
|
/* Parsed Attributes */
|
|
static int hf_tcpip_status = -1;
|
|
static int hf_tcpip_status_interface_config = -1;
|
|
static int hf_tcpip_status_mcast_pending = -1;
|
|
static int hf_tcpip_status_interface_config_pending = -1;
|
|
static int hf_tcpip_status_acd = -1;
|
|
static int hf_tcpip_status_reserved = -1;
|
|
static int hf_tcpip_config_cap = -1;
|
|
static int hf_tcpip_config_cap_bootp = -1;
|
|
static int hf_tcpip_config_cap_dns = -1;
|
|
static int hf_tcpip_config_cap_dhcp = -1;
|
|
static int hf_tcpip_config_cap_dhcp_dns_update = -1;
|
|
static int hf_tcpip_config_cap_config_settable = -1;
|
|
static int hf_tcpip_config_cap_hardware_config = -1;
|
|
static int hf_tcpip_config_cap_interface_reset = -1;
|
|
static int hf_tcpip_config_cap_acd = -1;
|
|
static int hf_tcpip_config_cap_reserved = -1;
|
|
static int hf_tcpip_config_control = -1;
|
|
static int hf_tcpip_config_control_config = -1;
|
|
static int hf_tcpip_config_control_dns = -1;
|
|
static int hf_tcpip_config_control_reserved = -1;
|
|
static int hf_tcpip_physical_link_size = -1;
|
|
static int hf_tcpip_ic_ip_addr = -1;
|
|
static int hf_tcpip_ic_subnet_mask = -1;
|
|
static int hf_tcpip_ic_gateway = -1;
|
|
static int hf_tcpip_ic_name_server = -1;
|
|
static int hf_tcpip_ic_name_server2 = -1;
|
|
static int hf_tcpip_ic_domain_name = -1;
|
|
static int hf_tcpip_hostname = -1;
|
|
static int hf_tcpip_ttl_value = -1;
|
|
static int hf_tcpip_mcast_alloc = -1;
|
|
static int hf_tcpip_mcast_reserved = -1;
|
|
static int hf_tcpip_mcast_num_mcast = -1;
|
|
static int hf_tcpip_mcast_addr_start = -1;
|
|
static int hf_tcpip_lcd_acd_activity = -1;
|
|
static int hf_tcpip_lcd_remote_mac = -1;
|
|
static int hf_tcpip_lcd_arp_pdu = -1;
|
|
static int hf_tcpip_select_acd = -1;
|
|
static int hf_tcpip_quick_connect = -1;
|
|
|
|
static int hf_elink_interface_flags = -1;
|
|
static int hf_elink_iflags_link_status = -1;
|
|
static int hf_elink_iflags_duplex = -1;
|
|
static int hf_elink_iflags_neg_status = -1;
|
|
static int hf_elink_iflags_manual_reset = -1;
|
|
static int hf_elink_iflags_local_hw_fault = -1;
|
|
static int hf_elink_iflags_reserved = -1;
|
|
static int hf_elink_interface_speed = -1;
|
|
static int hf_elink_physical_address = -1;
|
|
static int hf_elink_icount_in_octets = -1;
|
|
static int hf_elink_icount_in_ucast = -1;
|
|
static int hf_elink_icount_in_nucast = -1;
|
|
static int hf_elink_icount_in_discards = -1;
|
|
static int hf_elink_icount_in_errors = -1;
|
|
static int hf_elink_icount_in_unknown_protos = -1;
|
|
static int hf_elink_icount_out_octets = -1;
|
|
static int hf_elink_icount_out_ucast = -1;
|
|
static int hf_elink_icount_out_nucast = -1;
|
|
static int hf_elink_icount_out_discards = -1;
|
|
static int hf_elink_icount_out_errors = -1;
|
|
static int hf_elink_mcount_alignment_errors = -1;
|
|
static int hf_elink_mcount_fcs_errors = -1;
|
|
static int hf_elink_mcount_single_collisions = -1;
|
|
static int hf_elink_mcount_multiple_collisions = -1;
|
|
static int hf_elink_mcount_sqe_test_errors = -1;
|
|
static int hf_elink_mcount_deferred_transmission = -1;
|
|
static int hf_elink_mcount_late_collisions = -1;
|
|
static int hf_elink_mcount_excessive_collisions = -1;
|
|
static int hf_elink_mcount_mac_transmit_errors = -1;
|
|
static int hf_elink_mcount_carrier_sense_errors = -1;
|
|
static int hf_elink_mcount_frame_too_long = -1;
|
|
static int hf_elink_mcount_mac_receive_errors = -1;
|
|
static int hf_elink_icontrol_control_bits = -1;
|
|
static int hf_elink_icontrol_control_bits_auto_neg = -1;
|
|
static int hf_elink_icontrol_control_bits_forced_duplex = -1;
|
|
static int hf_elink_icontrol_control_bits_reserved = -1;
|
|
static int hf_elink_icontrol_forced_speed = -1;
|
|
static int hf_elink_interface_type = -1;
|
|
static int hf_elink_interface_state = -1;
|
|
static int hf_elink_admin_state = -1;
|
|
static int hf_elink_interface_label = -1;
|
|
|
|
static int hf_qos_8021q_enable = -1;
|
|
static int hf_qos_dscp_ptp_event = -1;
|
|
static int hf_qos_dscp_ptp_general = -1;
|
|
static int hf_qos_dscp_urgent = -1;
|
|
static int hf_qos_dscp_scheduled = -1;
|
|
static int hf_qos_dscp_high = -1;
|
|
static int hf_qos_dscp_low = -1;
|
|
static int hf_qos_dscp_explicit = -1;
|
|
|
|
/* Initialize the subtree pointers */
|
|
static gint ett_enip = -1;
|
|
static gint ett_count_tree = -1;
|
|
static gint ett_type_tree = -1;
|
|
static gint ett_command_tree = -1;
|
|
static gint ett_sockadd = -1;
|
|
static gint ett_32bitheader_tree = -1;
|
|
static gint ett_lsrcf = -1;
|
|
static gint ett_tcpip_status = -1;
|
|
static gint ett_tcpip_config_cap = -1;
|
|
static gint ett_tcpip_config_control = -1;
|
|
static gint ett_elink_interface_flags = -1;
|
|
static gint ett_elink_icontrol_bits = -1;
|
|
|
|
static dissector_table_t subdissector_srrd_table;
|
|
static dissector_table_t subdissector_sud_table;
|
|
static dissector_handle_t data_handle;
|
|
static heur_dissector_list_t heur_subdissector_conndata_table;
|
|
|
|
static gboolean enip_desegment = TRUE;
|
|
static gboolean enip_OTrun_idle = TRUE;
|
|
static gboolean enip_TOrun_idle = FALSE;
|
|
|
|
static int proto_dlr = -1;
|
|
|
|
static int hf_dlr_ringsubtype = -1;
|
|
static int hf_dlr_ringprotoversion = -1;
|
|
static int hf_dlr_frametype = -1;
|
|
static int hf_dlr_sourceport = -1;
|
|
static int hf_dlr_sourceip = -1;
|
|
static int hf_dlr_sequenceid = -1;
|
|
|
|
static int hf_dlr_ringstate = -1;
|
|
static int hf_dlr_supervisorprecedence = -1;
|
|
static int hf_dlr_beaconinterval = -1;
|
|
static int hf_dlr_beacontimeout = -1;
|
|
static int hf_dlr_beaconreserved = -1;
|
|
|
|
static int hf_dlr_nreqreserved = -1;
|
|
|
|
static int hf_dlr_nressourceport = -1;
|
|
static int hf_dlr_nresreserved = -1;
|
|
|
|
static int hf_dlr_lnknbrstatus = -1;
|
|
static int hf_dlr_lnknbrreserved = -1;
|
|
|
|
static int hf_dlr_lfreserved = -1;
|
|
|
|
static int hf_dlr_anreserved = -1;
|
|
|
|
static int hf_dlr_sonumnodes = -1;
|
|
static int hf_dlr_somac = -1;
|
|
static int hf_dlr_soip = -1;
|
|
static int hf_dlr_soreserved = -1;
|
|
|
|
static gint ett_dlr = -1;
|
|
|
|
/* Translate function to string - Encapsulation commands */
|
|
static const value_string encap_cmd_vals[] = {
|
|
{ NOP, "NOP" },
|
|
{ LIST_SERVICES, "List Services" },
|
|
{ LIST_IDENTITY, "List Identity" },
|
|
{ LIST_INTERFACES, "List Interfaces" },
|
|
{ REGISTER_SESSION, "Register Session" },
|
|
{ UNREGISTER_SESSION,"Unregister Session" },
|
|
{ SEND_RR_DATA, "Send RR Data" },
|
|
{ SEND_UNIT_DATA, "Send Unit Data" },
|
|
{ INDICATE_STATUS, "Indicate Status" },
|
|
{ CANCEL, "Cancel" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/* Translate function to string - Encapsulation status */
|
|
static const value_string encap_status_vals[] = {
|
|
{ SUCCESS, "Success" },
|
|
{ INVALID_CMD, "Invalid Command" },
|
|
{ NO_RESOURCES, "No Memory Resources" },
|
|
{ INCORRECT_DATA, "Incorrect Data" },
|
|
{ INVALID_SESSION, "Invalid Session Handle" },
|
|
{ INVALID_LENGTH, "Invalid Length" },
|
|
{ UNSUPPORTED_PROT_REV, "Unsupported Protocol Revision" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/* Translate function to Common data format values */
|
|
static const value_string cdf_type_vals[] = {
|
|
{ CDF_NULL, "Null Address Item" },
|
|
{ LIST_IDENTITY_RESP, "List Identity Response" },
|
|
{ CONNECTION_BASED, "Connected Address Item" },
|
|
{ CONNECTION_TRANSPORT, "Connected Data Item" },
|
|
{ UNCONNECTED_MSG, "Unconnected Data Item" },
|
|
{ LIST_SERVICES_RESP, "List Services Response" },
|
|
{ SOCK_ADR_INFO_OT, "Socket Address Info O->T" },
|
|
{ SOCK_ADR_INFO_TO, "Socket Address Info T->O" },
|
|
{ SEQ_ADDRESS, "Sequenced Address Item" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/* Translate function to string - Run/Idle */
|
|
static const value_string enip_run_idle_vals[] = {
|
|
{ 0, "Idle" },
|
|
{ 1, "Run" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_tcpip_status_interface_config_vals[] = {
|
|
{ 0, "Not configured" },
|
|
{ 1, "BOOTP/DHCP/NVS" },
|
|
{ 2, "Hardware settings" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_tcpip_status_acd_vals[] = {
|
|
{ 0, "No Address Conflict Detected" },
|
|
{ 1, "Address Conflict Detected" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_tcpip_config_control_config_vals[] = {
|
|
{ 0, "Static IP" },
|
|
{ 1, "BOOTP" },
|
|
{ 2, "DHCP" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_tcpip_mcast_alloc_vals[] = {
|
|
{ 0, "Use default multicast algorithm" },
|
|
{ 1, "Use Num Mcast and Mcast Start Addr" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_tcpip_acd_activity_vals[] = {
|
|
{ 0, "No Conflict Detected" },
|
|
{ 1, "Probe IPv4 Address" },
|
|
{ 2, "Ongoing Detection" },
|
|
{ 3, "Semi Active Probe" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_elink_duplex_vals[] = {
|
|
{ 0, "Half Duplex" },
|
|
{ 1, "Full Duplex" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_elink_iflags_neg_status_vals[] = {
|
|
{ 0, "Auto-negotiation in progress" },
|
|
{ 1, "Auto-negotiation and speed detection failed" },
|
|
{ 2, "Auto-negotiation failed but detected speed" },
|
|
{ 3, "Auto-negotiation not attempted. Forced speed and duplex." },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_elink_iflags_reset_vals[] = {
|
|
{ 0, "Activate change automatically" },
|
|
{ 1, "Device requires Reset service for change" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_elink_iflags_hw_fault_vals[] = {
|
|
{ 0, "No local hardware fault" },
|
|
{ 1, "Local hardware fault detected" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_elink_interface_type_vals[] = {
|
|
{ 0, "Unknown type" },
|
|
{ 1, "Internal" },
|
|
{ 2, "Twisted-pair" },
|
|
{ 3, "Optical fiber" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_elink_interface_state_vals[] = {
|
|
{ 0, "Unknown state" },
|
|
{ 1, "Enabled" },
|
|
{ 2, "Disabled" },
|
|
{ 3, "Testing" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string enip_elink_admin_state_vals[] = {
|
|
{ 1, "Enabled" },
|
|
{ 2, "Disabled" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/* Translate interface handle to string */
|
|
static const value_string enip_interface_handle_vals[] = {
|
|
{ 0, "CIP" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/* Translate function to DLR Frame Type values */
|
|
static const value_string dlr_frame_type_vals[] = {
|
|
{ DLR_FT_BEACON, "Beacon" },
|
|
{ DLR_FT_NEIGHBOR_REQ, "Neighbor_Check_Request" },
|
|
{ DLR_FT_NEIGHBOR_RES, "Neighbor_Check_Response" },
|
|
{ DLR_FT_LINK_STAT, "Link_Status / Neighbor_Status" },
|
|
{ DLR_FT_LOCATE_FLT, "Locate_Fault" },
|
|
{ DLR_FT_ANNOUNCE, "Announce" },
|
|
{ DLR_FT_SIGN_ON, "Sign_On" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/* Translate function to DLR Source Port values */
|
|
static const value_string dlr_source_port_vals[] = {
|
|
{ 0, "Port 1 or Port 2" },
|
|
{ 1, "Port 1" },
|
|
{ 2, "Port 2" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/* Translate function to DLR Ring State values */
|
|
static const value_string dlr_ring_state_vals[] = {
|
|
{ 1, "RING_NORMAL_STATE" },
|
|
{ 2, "RING_FAULT_STATE" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
|
|
/* Translate function to DLR Link_Status/Neighbor_Status Status values */
|
|
static const value_string dlr_lnk_nbr_status_vals[] = {
|
|
{ 0x01, "PORT_1_UP" },
|
|
{ 0x02, "PORT_2_UP" },
|
|
{ 0x80, "NEIGHBOR_STATUS_FLAG" },
|
|
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static GHashTable *enip_request_hashtable = NULL;
|
|
|
|
/* Return codes of function classifying packets as query/response */
|
|
enum enip_packet_type {ENIP_REQUEST_PACKET, ENIP_RESPONSE_PACKET, ENIP_CANNOT_CLASSIFY};
|
|
enum enip_packet_data_type { EPDT_UNKNOWN, EPDT_CONNECTED_TRANSPORT, EPDT_UNCONNECTED };
|
|
enum enip_connid_type {ECIDT_UNKNOWN, ECIDT_O2T, ECIDT_T2O};
|
|
|
|
typedef struct enip_request_key {
|
|
enum enip_packet_type requesttype;
|
|
enum enip_packet_data_type type;
|
|
guint32 session_handle;
|
|
guint64 sender_context;
|
|
guint32 conversation;
|
|
union {
|
|
struct {
|
|
guint32 connid;
|
|
guint16 sequence;
|
|
} connected_transport;
|
|
} data;
|
|
} enip_request_key_t;
|
|
|
|
typedef struct enip_request_val {
|
|
emem_tree_t *frames;
|
|
} enip_request_val_t;
|
|
|
|
/*
|
|
* Hash Functions
|
|
*/
|
|
static gint
|
|
enip_request_equal(gconstpointer v, gconstpointer w)
|
|
{
|
|
const enip_request_key_t *v1 = (const enip_request_key_t *)v;
|
|
const enip_request_key_t *v2 = (const enip_request_key_t *)w;
|
|
|
|
if ( v1->conversation == v2->conversation
|
|
&& v1->session_handle == v2->session_handle
|
|
&& v1->type == v2->type
|
|
&& ( ( v1->sender_context == v2->sender_context /* heuristic approach */
|
|
&& v1->type == EPDT_UNCONNECTED
|
|
)
|
|
||
|
|
( v1->data.connected_transport.connid == v2->data.connected_transport.connid
|
|
&& v1->data.connected_transport.sequence == v2->data.connected_transport.sequence
|
|
&& v1->type == EPDT_CONNECTED_TRANSPORT
|
|
)
|
|
)
|
|
)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
enip_fmt_lir_revision( gchar *result, guint32 revision )
|
|
{
|
|
g_snprintf( result, 5, "%d.%02d", (guint8)(( revision & 0xFF00 ) >> 8), (guint8)(revision & 0xFF) );
|
|
}
|
|
|
|
static guint
|
|
enip_request_hash (gconstpointer v)
|
|
{
|
|
const enip_request_key_t *key = (const enip_request_key_t *)v;
|
|
guint val;
|
|
|
|
val = (guint)( key->conversation * 37 + key->session_handle * 93 + key->type * 765
|
|
+ key->sender_context * 23
|
|
+ key->data.connected_transport.connid * 87 + key->data.connected_transport.sequence * 834 );
|
|
|
|
return val;
|
|
}
|
|
|
|
static enip_request_info_t *
|
|
enip_match_request( packet_info *pinfo, proto_tree *tree, enip_request_key_t *prequest_key )
|
|
{
|
|
enip_request_key_t *new_request_key;
|
|
enip_request_val_t *request_val;
|
|
enip_request_info_t *request_info = NULL;
|
|
|
|
request_info = NULL;
|
|
request_val = g_hash_table_lookup( enip_request_hashtable, prequest_key );
|
|
if(!pinfo->fd->flags.visited)
|
|
{
|
|
if ( prequest_key && prequest_key->requesttype == ENIP_REQUEST_PACKET )
|
|
{
|
|
if ( request_val == NULL )
|
|
{
|
|
new_request_key = se_memdup(prequest_key, sizeof(enip_request_key_t));
|
|
|
|
request_val = se_alloc(sizeof(enip_request_val_t));
|
|
request_val->frames = se_tree_create_non_persistent(EMEM_TREE_TYPE_RED_BLACK, "enip_frames");
|
|
|
|
g_hash_table_insert(enip_request_hashtable, new_request_key, request_val );
|
|
}
|
|
|
|
request_info = se_alloc(sizeof(enip_request_info_t));
|
|
request_info->req_num = pinfo->fd->num;
|
|
request_info->rep_num = 0;
|
|
request_info->req_time = pinfo->fd->abs_ts;
|
|
request_info->cip_info = NULL;
|
|
se_tree_insert32(request_val->frames, pinfo->fd->num, (void *)request_info);
|
|
}
|
|
if( request_val && prequest_key && prequest_key->requesttype == ENIP_RESPONSE_PACKET )
|
|
{
|
|
request_info = (enip_request_info_t*)se_tree_lookup32_le( request_val->frames, pinfo->fd->num );
|
|
if ( request_info )
|
|
{
|
|
request_info->rep_num = pinfo->fd->num;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( request_val )
|
|
request_info = (enip_request_info_t*)se_tree_lookup32_le( request_val->frames, pinfo->fd->num );
|
|
}
|
|
|
|
if ( tree && request_info )
|
|
{
|
|
/* print state tracking in the tree */
|
|
if ( prequest_key && prequest_key->requesttype == ENIP_REQUEST_PACKET )
|
|
{
|
|
/* This is a request */
|
|
if (request_info->rep_num)
|
|
{
|
|
proto_item *it;
|
|
|
|
it = proto_tree_add_uint(tree, hf_enip_response_in,
|
|
NULL, 0, 0, request_info->rep_num);
|
|
PROTO_ITEM_SET_GENERATED(it);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( prequest_key && prequest_key->requesttype == ENIP_RESPONSE_PACKET )
|
|
{
|
|
/* This is a reply */
|
|
if (request_info->req_num)
|
|
{
|
|
proto_item *it;
|
|
nstime_t ns;
|
|
|
|
it = proto_tree_add_uint(tree, hf_enip_response_to,
|
|
NULL, 0, 0, request_info->req_num);
|
|
PROTO_ITEM_SET_GENERATED(it);
|
|
|
|
nstime_delta(&ns, &pinfo->fd->abs_ts, &request_info->req_time);
|
|
it = proto_tree_add_time(tree, hf_enip_time, NULL, 0, 0, &ns);
|
|
PROTO_ITEM_SET_GENERATED(it);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return request_info;
|
|
}
|
|
|
|
/*
|
|
* Connection management
|
|
*/
|
|
|
|
typedef struct enip_conn_key {
|
|
guint16 ConnSerialNumber;
|
|
guint16 VendorID;
|
|
guint32 DeviceSerialNumber;
|
|
} enip_conn_key_t;
|
|
|
|
typedef struct enip_conn_val {
|
|
guint16 ConnSerialNumber;
|
|
guint16 VendorID;
|
|
guint32 DeviceSerialNumber;
|
|
guint32 O2TConnID;
|
|
guint32 T2OConnID;
|
|
guint8 TransportClass;
|
|
guint32 openframe;
|
|
guint32 closeframe;
|
|
guint32 connid;
|
|
} enip_conn_val_t;
|
|
|
|
typedef struct _enip_conv_info_t {
|
|
emem_tree_t *O2TConnIDs;
|
|
emem_tree_t *T2OConnIDs;
|
|
} enip_conv_info_t;
|
|
|
|
static GHashTable *enip_conn_hashtable = NULL;
|
|
static guint32 enip_unique_connid = 1;
|
|
|
|
static gint
|
|
enip_conn_equal(gconstpointer v, gconstpointer w)
|
|
{
|
|
const enip_conn_key_t *v1 = (const enip_conn_key_t *)v;
|
|
const enip_conn_key_t *v2 = (const enip_conn_key_t *)w;
|
|
|
|
if ( v1->ConnSerialNumber == v2->ConnSerialNumber
|
|
&& v1->VendorID == v2->VendorID
|
|
&& v1->DeviceSerialNumber == v2->DeviceSerialNumber
|
|
)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static guint
|
|
enip_conn_hash (gconstpointer v)
|
|
{
|
|
const enip_conn_key_t *key = (const enip_conn_key_t *)v;
|
|
guint val;
|
|
|
|
val = (guint)( key->ConnSerialNumber + key->VendorID + key->DeviceSerialNumber );
|
|
|
|
return val;
|
|
}
|
|
|
|
void
|
|
enip_open_cip_connection( packet_info *pinfo, cip_conn_info_t* connInfo)
|
|
{
|
|
enip_conn_key_t *conn_key;
|
|
enip_conn_val_t *conn_val;
|
|
conversation_t *conversation, *conversationTO;
|
|
enip_conv_info_t *enip_info;
|
|
address dest_address;
|
|
|
|
if (pinfo->fd->flags.visited)
|
|
return;
|
|
|
|
conn_key = se_alloc(sizeof(enip_conn_key_t));
|
|
conn_key->ConnSerialNumber = connInfo->ConnSerialNumber;
|
|
conn_key->VendorID = connInfo->VendorID;
|
|
conn_key->DeviceSerialNumber = connInfo->DeviceSerialNumber;
|
|
|
|
conn_val = g_hash_table_lookup( enip_conn_hashtable, conn_key );
|
|
if ( conn_val == NULL )
|
|
{
|
|
conn_val = se_alloc(sizeof(enip_conn_val_t));
|
|
|
|
conn_val->ConnSerialNumber = connInfo->ConnSerialNumber;
|
|
conn_val->VendorID = connInfo->VendorID;
|
|
conn_val->DeviceSerialNumber = connInfo->DeviceSerialNumber;
|
|
conn_val->O2TConnID = connInfo->O2T.connID;
|
|
conn_val->T2OConnID = connInfo->T2O.connID;
|
|
conn_val->TransportClass = connInfo->TransportClass;
|
|
conn_val->openframe = pinfo->fd->num;
|
|
conn_val->closeframe = 0;
|
|
conn_val->connid = enip_unique_connid++;
|
|
|
|
g_hash_table_insert(enip_conn_hashtable, conn_key, conn_val );
|
|
|
|
/* I/O connection */
|
|
if ((connInfo->TransportClass == 0) ||
|
|
(connInfo->TransportClass == 1))
|
|
{
|
|
/* default some information if not included */
|
|
if ((connInfo->O2T.port == 0) || (connInfo->O2T.type == CONN_TYPE_MULTICAST))
|
|
connInfo->O2T.port = ENIP_IO_PORT;
|
|
if ((connInfo->O2T.ipaddress == 0) || (connInfo->O2T.type != CONN_TYPE_MULTICAST))
|
|
connInfo->O2T.ipaddress = *((guint32*)pinfo->src.data);
|
|
if ((connInfo->T2O.port == 0) || (connInfo->T2O.type == CONN_TYPE_MULTICAST))
|
|
connInfo->T2O.port = ENIP_IO_PORT;
|
|
if ((connInfo->T2O.ipaddress == 0) || (connInfo->T2O.type != CONN_TYPE_MULTICAST))
|
|
connInfo->T2O.ipaddress = *((guint32*)pinfo->dst.data);
|
|
|
|
dest_address.type = AT_IPv4;
|
|
dest_address.len = 4;
|
|
dest_address.data = &connInfo->O2T.ipaddress;
|
|
|
|
/* check for O->T conversation */
|
|
/* similar logic to find_or_create_conversation(), but since I/O traffic
|
|
is on UDP, the pinfo parameter doesn't have the correct information */
|
|
if((conversation = find_conversation(pinfo->fd->num, &pinfo->dst, &dest_address,
|
|
PT_UDP, connInfo->O2T.port,
|
|
connInfo->O2T.port, 0)) == NULL) {
|
|
|
|
conversation = conversation_new(pinfo->fd->num, &pinfo->dst,
|
|
&dest_address, PT_UDP,
|
|
connInfo->O2T.port, connInfo->O2T.port, 0);
|
|
}
|
|
|
|
enip_info = conversation_get_proto_data(conversation, proto_enip);
|
|
if (enip_info == NULL)
|
|
{
|
|
enip_info = se_alloc(sizeof(enip_conv_info_t));
|
|
enip_info->O2TConnIDs = se_tree_create_non_persistent(
|
|
EMEM_TREE_TYPE_RED_BLACK, "enip_O2T");
|
|
enip_info->T2OConnIDs = se_tree_create_non_persistent(
|
|
EMEM_TREE_TYPE_RED_BLACK, "enip_T2O");
|
|
|
|
conversation_add_proto_data(conversation, proto_enip, enip_info);
|
|
}
|
|
se_tree_insert32(enip_info->O2TConnIDs, connInfo->O2T.connID, (void *)conn_val);
|
|
|
|
/* Check if separate T->O conversation is necessary. If either side is multicast
|
|
or ports aren't equal, a separate conversation must be generated */
|
|
dest_address.data = &connInfo->T2O.ipaddress;
|
|
if((conversationTO = find_conversation(pinfo->fd->num, &pinfo->src, &dest_address,
|
|
PT_UDP, connInfo->T2O.port,
|
|
connInfo->T2O.port, 0)) == NULL) {
|
|
|
|
conversationTO = conversation_new(pinfo->fd->num, &pinfo->src,
|
|
&dest_address, PT_UDP,
|
|
connInfo->T2O.port, connInfo->T2O.port, 0);
|
|
}
|
|
|
|
enip_info = conversation_get_proto_data(conversationTO, proto_enip);
|
|
if (enip_info == NULL)
|
|
{
|
|
enip_info = se_alloc(sizeof(enip_conv_info_t));
|
|
enip_info->O2TConnIDs = se_tree_create_non_persistent(
|
|
EMEM_TREE_TYPE_RED_BLACK, "enip_O2T");
|
|
enip_info->T2OConnIDs = se_tree_create_non_persistent(
|
|
EMEM_TREE_TYPE_RED_BLACK, "enip_T2O");
|
|
conversation_add_proto_data(conversationTO, proto_enip, enip_info);
|
|
}
|
|
se_tree_insert32(enip_info->T2OConnIDs, connInfo->T2O.connID, (void *)conn_val);
|
|
}
|
|
else
|
|
{
|
|
/* explicit message connection */
|
|
conversation = find_or_create_conversation(pinfo);
|
|
|
|
/* Do we already have a state structure for this conv */
|
|
enip_info = conversation_get_proto_data(conversation, proto_enip);
|
|
if (!enip_info)
|
|
{
|
|
/*
|
|
* No. Attach that information to the conversation, and add
|
|
* it to the list of information structures.
|
|
*/
|
|
enip_info = se_alloc(sizeof(enip_conv_info_t));
|
|
enip_info->O2TConnIDs = se_tree_create_non_persistent(
|
|
EMEM_TREE_TYPE_RED_BLACK, "enip_O2T");
|
|
enip_info->T2OConnIDs = se_tree_create_non_persistent(
|
|
EMEM_TREE_TYPE_RED_BLACK, "enip_T2O");
|
|
|
|
conversation_add_proto_data(conversation, proto_enip, enip_info);
|
|
}
|
|
se_tree_insert32(enip_info->O2TConnIDs, connInfo->O2T.connID, (void *)conn_val);
|
|
se_tree_insert32(enip_info->T2OConnIDs, connInfo->T2O.connID, (void *)conn_val);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
enip_close_cip_connection(packet_info *pinfo, guint16 ConnSerialNumber,
|
|
guint16 VendorID, guint32 DeviceSerialNumber )
|
|
{
|
|
enip_conn_key_t conn_key;
|
|
enip_conn_val_t *conn_val;
|
|
|
|
if (pinfo->fd->flags.visited)
|
|
return;
|
|
|
|
conn_key.ConnSerialNumber = ConnSerialNumber;
|
|
conn_key.VendorID = VendorID;
|
|
conn_key.DeviceSerialNumber = DeviceSerialNumber;
|
|
|
|
conn_val = g_hash_table_lookup( enip_conn_hashtable, &conn_key );
|
|
if ( conn_val )
|
|
{
|
|
conn_val->closeframe = pinfo->fd->num;
|
|
}
|
|
}
|
|
|
|
static guint32
|
|
enip_get_explicit_connid(packet_info *pinfo, enip_request_key_t *prequest_key, guint32 connid)
|
|
{
|
|
conversation_t *conversation;
|
|
enip_conv_info_t *enip_info;
|
|
enip_conn_val_t *conn_val;
|
|
|
|
if ( prequest_key == NULL
|
|
|| ( prequest_key->requesttype != ENIP_REQUEST_PACKET && prequest_key->requesttype != ENIP_RESPONSE_PACKET )
|
|
)
|
|
return 0;
|
|
|
|
/*
|
|
* Do we have a conversation for this connection?
|
|
*/
|
|
conversation = find_conversation(pinfo->fd->num,
|
|
&pinfo->src, &pinfo->dst,
|
|
pinfo->ptype,
|
|
pinfo->srcport, pinfo->destport, 0);
|
|
if (conversation == NULL)
|
|
return 0;
|
|
|
|
/*
|
|
* Do we already have a state structure for this conv
|
|
*/
|
|
enip_info = conversation_get_proto_data(conversation, proto_enip);
|
|
if (!enip_info)
|
|
return 0;
|
|
|
|
conn_val = NULL;
|
|
switch ( prequest_key->requesttype )
|
|
{
|
|
case ENIP_REQUEST_PACKET:
|
|
conn_val = se_tree_lookup32( enip_info->O2TConnIDs, connid );
|
|
if ( conn_val == NULL )
|
|
conn_val = se_tree_lookup32( enip_info->T2OConnIDs, connid );
|
|
break;
|
|
|
|
case ENIP_RESPONSE_PACKET:
|
|
conn_val = se_tree_lookup32( enip_info->T2OConnIDs, connid );
|
|
if ( conn_val == NULL )
|
|
conn_val = se_tree_lookup32( enip_info->O2TConnIDs, connid );
|
|
break;
|
|
case ENIP_CANNOT_CLASSIFY:
|
|
/* ignore */
|
|
break;
|
|
}
|
|
|
|
if ((conn_val == NULL ) || (conn_val->openframe > pinfo->fd->num))
|
|
return 0;
|
|
|
|
return conn_val->connid;
|
|
}
|
|
|
|
static enip_conn_val_t*
|
|
enip_get_io_connid(packet_info *pinfo, guint32 connid, enum enip_connid_type* pconnid_type)
|
|
{
|
|
conversation_t *conversation;
|
|
enip_conv_info_t *enip_info;
|
|
enip_conn_val_t *conn_val = NULL;
|
|
|
|
*pconnid_type = ECIDT_UNKNOWN;
|
|
/*
|
|
* Do we have a conversation for this connection?
|
|
*/
|
|
conversation = find_conversation(pinfo->fd->num,
|
|
&pinfo->src, &pinfo->dst,
|
|
pinfo->ptype,
|
|
pinfo->srcport, pinfo->destport, 0);
|
|
|
|
if (conversation == NULL)
|
|
return NULL;
|
|
|
|
/*
|
|
* Do we already have a state structure for this conv
|
|
*/
|
|
if ((enip_info = conversation_get_proto_data(conversation, proto_enip)) == NULL)
|
|
return NULL;
|
|
|
|
if (enip_info->O2TConnIDs != NULL)
|
|
conn_val = se_tree_lookup32( enip_info->O2TConnIDs, connid );
|
|
|
|
if ( conn_val == NULL )
|
|
{
|
|
if (enip_info->T2OConnIDs != NULL)
|
|
{
|
|
if ((conn_val = se_tree_lookup32( enip_info->T2OConnIDs, connid)) != NULL)
|
|
*pconnid_type = ECIDT_T2O;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*pconnid_type = ECIDT_O2T;
|
|
}
|
|
|
|
if ((conn_val == NULL) || ( conn_val->openframe > pinfo->fd->num ))
|
|
return NULL;
|
|
|
|
return conn_val;
|
|
}
|
|
|
|
|
|
int dissect_tcpip_status(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
proto_item* status_item;
|
|
proto_tree* status_tree;
|
|
|
|
if (total_len < 4)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Attribute 1");
|
|
return total_len;
|
|
}
|
|
|
|
status_item = proto_tree_add_item(tree, hf_tcpip_status, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
status_tree = proto_item_add_subtree(status_item, ett_tcpip_status);
|
|
|
|
proto_tree_add_item(status_tree, hf_tcpip_status_interface_config, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(status_tree, hf_tcpip_status_mcast_pending, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(status_tree, hf_tcpip_status_interface_config_pending, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(status_tree, hf_tcpip_status_acd, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(status_tree, hf_tcpip_status_reserved, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
return 4;
|
|
}
|
|
|
|
int dissect_tcpip_config_cap(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
proto_item* cap_item;
|
|
proto_tree* cap_tree;
|
|
|
|
if (total_len < 4)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Attribute 2");
|
|
return total_len;
|
|
}
|
|
|
|
cap_item = proto_tree_add_item(tree, hf_tcpip_config_cap, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
cap_tree = proto_item_add_subtree(cap_item, ett_tcpip_config_cap);
|
|
|
|
proto_tree_add_item(cap_tree, hf_tcpip_config_cap_bootp, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(cap_tree, hf_tcpip_config_cap_dns, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(cap_tree, hf_tcpip_config_cap_dhcp, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(cap_tree, hf_tcpip_config_cap_dhcp_dns_update, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(cap_tree, hf_tcpip_config_cap_config_settable, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(cap_tree, hf_tcpip_config_cap_hardware_config, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(cap_tree, hf_tcpip_config_cap_interface_reset, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(cap_tree, hf_tcpip_config_cap_acd, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(cap_tree, hf_tcpip_config_cap_reserved, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
return 4;
|
|
}
|
|
|
|
int dissect_tcpip_config_control(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
proto_item* control_item;
|
|
proto_tree* control_tree;
|
|
|
|
if (total_len < 4)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Attribute 3");
|
|
return total_len;
|
|
}
|
|
|
|
control_item = proto_tree_add_item(tree, hf_tcpip_config_control, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
control_tree = proto_item_add_subtree(control_item, ett_tcpip_config_control);
|
|
|
|
proto_tree_add_item(control_tree, hf_tcpip_config_control_config, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(control_tree, hf_tcpip_config_control_dns, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(control_tree, hf_tcpip_config_control_reserved, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
return 4;
|
|
}
|
|
|
|
int dissect_tcpip_physical_link(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
guint16 path_size;
|
|
proto_item* path_item;
|
|
|
|
path_size = tvb_get_letohs( tvb, offset)*2;
|
|
proto_tree_add_uint_format_value(tree, hf_tcpip_physical_link_size, tvb, offset, 2, path_size / 2, "%d (words)", path_size / 2);
|
|
|
|
if (total_len < path_size+2)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Attribute 4");
|
|
return total_len;
|
|
}
|
|
|
|
path_item = proto_tree_add_text(tree, tvb, offset+2, path_size, "Path: ");
|
|
dissect_epath( tvb, pinfo, path_item, offset+2, path_size, FALSE, NULL);
|
|
|
|
return path_size+2;
|
|
}
|
|
|
|
int dissect_tcpip_interface_config(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
guint16 domain_length;
|
|
|
|
if (total_len < 22)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Attribute 5");
|
|
return total_len;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_tcpip_ic_ip_addr, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_tcpip_ic_subnet_mask, tvb, offset+4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_tcpip_ic_gateway, tvb, offset+8, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_tcpip_ic_name_server, tvb, offset+12, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_tcpip_ic_name_server2, tvb, offset+16, 4, ENC_LITTLE_ENDIAN);
|
|
|
|
domain_length = tvb_get_letohs( tvb, offset+20);
|
|
proto_tree_add_item(tree, hf_tcpip_ic_domain_name, tvb, offset+22, domain_length, ENC_ASCII|ENC_NA);
|
|
|
|
return (22+domain_length);
|
|
}
|
|
|
|
int dissect_tcpip_mcast_config(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
if (total_len < 8)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Attribute 9");
|
|
return total_len;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_tcpip_mcast_alloc, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_tcpip_mcast_reserved, tvb, offset+1, 1, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_tcpip_mcast_num_mcast, tvb, offset+2, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_tcpip_mcast_addr_start, tvb, offset+4, 4, ENC_LITTLE_ENDIAN);
|
|
return 8;
|
|
}
|
|
|
|
int dissect_tcpip_last_conflict(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
if (total_len < 35)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Attribute 11");
|
|
return total_len;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_tcpip_lcd_acd_activity, tvb, offset, 1, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_tcpip_lcd_remote_mac, tvb, offset+1, 6, ENC_LITTLE_ENDIAN);
|
|
/* Call ARP dissector? */
|
|
proto_tree_add_item(tree, hf_tcpip_lcd_arp_pdu, tvb, offset+7, 28, ENC_LITTLE_ENDIAN);
|
|
return 35;
|
|
}
|
|
|
|
int dissect_elink_interface_flags(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
proto_item* flag_item;
|
|
proto_tree* flag_tree;
|
|
|
|
if (total_len < 4)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed Ethernet Link Attribute 2");
|
|
return total_len;
|
|
}
|
|
|
|
flag_item = proto_tree_add_item(tree, hf_elink_interface_flags, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
flag_tree = proto_item_add_subtree(flag_item, ett_elink_interface_flags);
|
|
|
|
proto_tree_add_item(flag_tree, hf_elink_iflags_link_status, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(flag_tree, hf_elink_iflags_duplex, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(flag_tree, hf_elink_iflags_neg_status, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(flag_tree, hf_elink_iflags_manual_reset, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(flag_tree, hf_elink_iflags_local_hw_fault, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(flag_tree, hf_elink_iflags_reserved, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
return 4;
|
|
}
|
|
|
|
int dissect_elink_interface_counters(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
if (total_len < 44)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed Ethernet Link Attribute 4");
|
|
return total_len;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_elink_icount_in_octets, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_icount_in_ucast, tvb, offset+4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_icount_in_nucast, tvb, offset+8, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_icount_in_discards, tvb, offset+12, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_icount_in_errors, tvb, offset+16, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_icount_in_unknown_protos, tvb, offset+20, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_icount_out_octets, tvb, offset+24, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_icount_out_ucast, tvb, offset+28, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_icount_out_nucast, tvb, offset+32, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_icount_out_discards, tvb, offset+36, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_icount_out_errors, tvb, offset+40, 4, ENC_LITTLE_ENDIAN);
|
|
return 44;
|
|
}
|
|
|
|
int dissect_elink_media_counters(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
if (total_len < 48)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed Ethernet Link Attribute 5");
|
|
return total_len;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_elink_mcount_alignment_errors, tvb, offset, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_fcs_errors, tvb, offset+4, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_single_collisions, tvb, offset+8, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_multiple_collisions, tvb, offset+12, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_sqe_test_errors, tvb, offset+16, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_deferred_transmission, tvb, offset+20, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_late_collisions, tvb, offset+24, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_excessive_collisions, tvb, offset+28, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_mac_transmit_errors, tvb, offset+32, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_carrier_sense_errors, tvb, offset+36, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_frame_too_long, tvb, offset+40, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(tree, hf_elink_mcount_mac_receive_errors, tvb, offset+44, 4, ENC_LITTLE_ENDIAN);
|
|
return 48;
|
|
}
|
|
|
|
int dissect_elink_interface_control(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb,
|
|
int offset, int total_len)
|
|
|
|
{
|
|
proto_item* control_item;
|
|
proto_tree* control_tree;
|
|
|
|
if (total_len < 4)
|
|
{
|
|
expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR, "Malformed Ethernet Link Attribute 6");
|
|
return total_len;
|
|
}
|
|
|
|
control_item = proto_tree_add_item(tree, hf_elink_icontrol_control_bits, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
control_tree = proto_item_add_subtree(control_item, ett_elink_icontrol_bits);
|
|
proto_tree_add_item(control_tree, hf_elink_icontrol_control_bits_auto_neg, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(control_tree, hf_elink_icontrol_control_bits_forced_duplex, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item(control_tree, hf_elink_icontrol_control_bits_reserved, tvb, offset, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(tree, hf_elink_icontrol_forced_speed, tvb, offset+2, 2, ENC_LITTLE_ENDIAN);
|
|
return 4;
|
|
}
|
|
|
|
attribute_info_t enip_attribute_vals[29] = {
|
|
|
|
{0xF5, FALSE, 1, "Status", cip_dissector_func, NULL, dissect_tcpip_status},
|
|
{0xF5, FALSE, 2, "Configuration Capability", cip_dissector_func, NULL, dissect_tcpip_config_cap},
|
|
{0xF5, FALSE, 3, "Configuration Control", cip_dissector_func, NULL, dissect_tcpip_config_control},
|
|
{0xF5, FALSE, 4, "Physical Link Object", cip_dissector_func, NULL, dissect_tcpip_physical_link},
|
|
{0xF5, FALSE, 5, "Interface Configuration", cip_dissector_func, NULL, dissect_tcpip_interface_config},
|
|
{0xF5, FALSE, 6, "Host Name", cip_string, &hf_tcpip_hostname, NULL},
|
|
{0xF5, FALSE, 8, "TTL Value", cip_usint, &hf_tcpip_ttl_value, NULL},
|
|
{0xF5, FALSE, 9, "Multicast Configuration", cip_dissector_func, NULL, dissect_tcpip_mcast_config},
|
|
{0xF5, FALSE, 10, "Select ACD", cip_bool, &hf_tcpip_select_acd, NULL},
|
|
{0xF5, FALSE, 11, "Last Conflict Detected", cip_dissector_func, NULL, dissect_tcpip_last_conflict},
|
|
{0xF5, FALSE, 12, "Ethernet/IP Quick Connect", cip_bool, &hf_tcpip_quick_connect, NULL},
|
|
|
|
{0xF6, FALSE, 1, "Interface Speed", cip_dword, &hf_elink_interface_speed, NULL},
|
|
{0xF6, FALSE, 2, "Interface Flags", cip_dissector_func, NULL, dissect_elink_interface_flags},
|
|
{0xF6, FALSE, 3, "Physical Address", cip_usint_array, &hf_elink_physical_address, NULL},
|
|
{0xF6, FALSE, 4, "Interface Counters", cip_dissector_func, NULL, dissect_elink_interface_counters},
|
|
{0xF6, FALSE, 5, "Media Counters", cip_dissector_func, NULL, dissect_elink_media_counters},
|
|
{0xF6, FALSE, 6, "Interface Control", cip_dissector_func, NULL, dissect_elink_interface_control},
|
|
{0xF6, FALSE, 7, "Interface Type", cip_usint, &hf_elink_interface_type, NULL},
|
|
{0xF6, FALSE, 8, "Interface State", cip_usint, &hf_elink_interface_state, NULL},
|
|
{0xF6, FALSE, 9, "Admin State", cip_usint, &hf_elink_admin_state, NULL},
|
|
{0xF6, FALSE, 10, "Interface Label", cip_short_string, &hf_elink_interface_label, NULL},
|
|
|
|
{0x48, FALSE, 1, "802.1Q Tag Enable", cip_usint, &hf_qos_8021q_enable, NULL},
|
|
{0x48, FALSE, 2, "DSCP PTP Event", cip_usint, &hf_qos_dscp_ptp_event, NULL},
|
|
{0x48, FALSE, 3, "DSCP PTP General", cip_usint, &hf_qos_dscp_ptp_general, NULL},
|
|
{0x48, FALSE, 4, "DSCP Urgent", cip_usint, &hf_qos_dscp_urgent, NULL},
|
|
{0x48, FALSE, 5, "DSCP Scheduled", cip_usint, &hf_qos_dscp_scheduled, NULL},
|
|
{0x48, FALSE, 6, "DSCP High", cip_usint, &hf_qos_dscp_high, NULL},
|
|
{0x48, FALSE, 7, "DSCP Low", cip_usint, &hf_qos_dscp_low, NULL},
|
|
{0x48, FALSE, 8, "DSCP Explicit", cip_usint, &hf_qos_dscp_explicit, NULL}
|
|
|
|
};
|
|
|
|
|
|
/*
|
|
* Protocol initialization
|
|
*/
|
|
static void
|
|
enip_init_protocol(void)
|
|
{
|
|
if (enip_request_hashtable)
|
|
g_hash_table_destroy(enip_request_hashtable);
|
|
enip_request_hashtable = g_hash_table_new(enip_request_hash, enip_request_equal);
|
|
|
|
if (enip_conn_hashtable)
|
|
g_hash_table_destroy(enip_conn_hashtable);
|
|
enip_conn_hashtable = g_hash_table_new(enip_conn_hash, enip_conn_equal);
|
|
}
|
|
|
|
/* Disssect Common Packet Format */
|
|
static void
|
|
dissect_cpf(enip_request_key_t *request_key, int command, tvbuff_t *tvb,
|
|
packet_info *pinfo, proto_tree *tree, proto_tree *dissector_tree, int offset, guint32 ifacehndl)
|
|
{
|
|
proto_item *temp_item, *count_item, *type_item, *sockaddr_item, *io_item;
|
|
proto_tree *temp_tree, *count_tree, *item_tree, *sockaddr_tree, *io_tree;
|
|
int item_count, item_length, item, io_length;
|
|
unsigned char name_length;
|
|
tvbuff_t *next_tvb;
|
|
enip_request_info_t *request_info;
|
|
enip_conn_val_t* conn_info = NULL;
|
|
gboolean FwdOpen = FALSE,
|
|
FwdOpenReply = FALSE;
|
|
enum enip_connid_type connid_type = ECIDT_UNKNOWN;
|
|
|
|
/* Create item count tree */
|
|
item_count = tvb_get_letohs( tvb, offset );
|
|
count_item = proto_tree_add_item( tree, hf_enip_cpf_itemcount, tvb, offset, 2, ENC_LITTLE_ENDIAN );
|
|
count_tree = proto_item_add_subtree( count_item, ett_count_tree );
|
|
|
|
while( item_count-- )
|
|
{
|
|
/* Add item type tree to item count tree*/
|
|
type_item = proto_tree_add_item( count_tree, hf_enip_cpf_typeid, tvb, offset+2, 2, ENC_LITTLE_ENDIAN );
|
|
item_tree = proto_item_add_subtree( type_item, ett_type_tree );
|
|
|
|
/* Add length field to item type tree */
|
|
proto_tree_add_item( item_tree, hf_enip_cpf_length, tvb, offset+4, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
item = tvb_get_letohs( tvb, offset+2 );
|
|
item_length = tvb_get_letohs( tvb, offset+4 );
|
|
|
|
if( item_length )
|
|
{
|
|
/* Add item data field */
|
|
|
|
switch( item )
|
|
{
|
|
case CONNECTION_BASED:
|
|
|
|
if ( request_key )
|
|
{
|
|
request_key->type = EPDT_CONNECTED_TRANSPORT;
|
|
request_key->data.connected_transport.connid = enip_get_explicit_connid( pinfo, request_key, tvb_get_letohl( tvb, offset+6 ) );
|
|
}
|
|
/* Add Connection identifier */
|
|
proto_tree_add_item(item_tree, hf_enip_cpf_cai_connid, tvb, offset+6, 4, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Add Connection ID to Info col */
|
|
if(check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_append_fstr(pinfo->cinfo, COL_INFO,
|
|
", CONID: 0x%08X",
|
|
tvb_get_letohl( tvb, offset+6 ) );
|
|
}
|
|
|
|
break;
|
|
|
|
case UNCONNECTED_MSG:
|
|
request_info = NULL;
|
|
if ( request_key )
|
|
{
|
|
request_key->type = EPDT_UNCONNECTED;
|
|
request_info = enip_match_request( pinfo, tree, request_key );
|
|
}
|
|
|
|
/* Call dissector for interface */
|
|
next_tvb = tvb_new_subset( tvb, offset+6, item_length, item_length );
|
|
p_add_proto_data(pinfo->fd, proto_enip, request_info);
|
|
if( tvb_length_remaining(next_tvb, 0) == 0 || !dissector_try_uint(subdissector_srrd_table, ifacehndl, next_tvb, pinfo, dissector_tree) )
|
|
{
|
|
/* Show the undissected payload */
|
|
if( tvb_length_remaining(tvb, offset) > 0 )
|
|
call_dissector( data_handle, next_tvb, pinfo, dissector_tree);
|
|
}
|
|
|
|
/* Check if this is a ForwardOpen packet, because special handling is needed
|
|
to handle connection conversations */
|
|
if ((request_info != NULL) && (request_info->cip_info != NULL) &&
|
|
(request_info->cip_info->connInfo != NULL) &&
|
|
(request_key != NULL) &&
|
|
(((request_info->cip_info->bService & 0x7F) == SC_CM_FWD_OPEN) ||
|
|
((request_info->cip_info->bService & 0x7F) == SC_CM_LARGE_FWD_OPEN))&&
|
|
(request_info->cip_info->dissector == dissector_get_uint_handle( subdissector_class_table, CI_CLS_CM)))
|
|
{
|
|
if (request_key->requesttype == ENIP_REQUEST_PACKET)
|
|
{
|
|
FwdOpen = TRUE;
|
|
}
|
|
else
|
|
{
|
|
FwdOpenReply = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
p_remove_proto_data(pinfo->fd, proto_enip);
|
|
}
|
|
break;
|
|
|
|
case CONNECTION_TRANSPORT:
|
|
|
|
if( command == SEND_UNIT_DATA )
|
|
{
|
|
request_info = NULL;
|
|
|
|
if ( request_key )
|
|
{
|
|
request_key->type = EPDT_CONNECTED_TRANSPORT;
|
|
request_key->data.connected_transport.sequence = tvb_get_letohs( tvb, offset+6 );
|
|
request_info = enip_match_request( pinfo, tree, request_key );
|
|
}
|
|
|
|
/*
|
|
** If the encapsulation service is SendUnit Data, this is a
|
|
** encapsulated connected message
|
|
*/
|
|
|
|
/* Add sequence count ( Transport Class 1,2,3 ) */
|
|
proto_tree_add_item( item_tree, hf_enip_cpf_cdi_seqcnt, tvb, offset+6, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Call dissector for interface */
|
|
next_tvb = tvb_new_subset (tvb, offset+8, item_length-2, item_length-2);
|
|
p_add_proto_data(pinfo->fd, proto_enip, request_info);
|
|
if( tvb_length_remaining(next_tvb, 0) == 0 || !dissector_try_uint(subdissector_sud_table, ifacehndl, next_tvb, pinfo, dissector_tree) )
|
|
{
|
|
/* Show the undissected payload */
|
|
if( tvb_length_remaining(tvb, offset) > 0 )
|
|
call_dissector( data_handle, next_tvb, pinfo, dissector_tree );
|
|
}
|
|
p_remove_proto_data(pinfo->fd, proto_enip);
|
|
}
|
|
else
|
|
{
|
|
/* Display data */
|
|
if (tvb_length_remaining(tvb, offset+6) > 0)
|
|
{
|
|
next_tvb = tvb_new_subset(tvb, offset+6, item_length, item_length);
|
|
if(!dissector_try_heuristic(heur_subdissector_conndata_table, next_tvb, pinfo, dissector_tree))
|
|
{
|
|
if (conn_info == NULL)
|
|
{
|
|
proto_tree_add_item(item_tree, hf_enip_connection_transport_data, tvb, offset+6, item_length, ENC_NA);
|
|
}
|
|
else
|
|
{
|
|
io_length = item_length;
|
|
|
|
if (conn_info->TransportClass == 1)
|
|
{
|
|
proto_tree_add_item( item_tree, hf_enip_cpf_cdi_seqcnt, tvb, offset+6+(item_length-io_length), 2, ENC_LITTLE_ENDIAN );
|
|
io_length -= 2;
|
|
}
|
|
|
|
if (((connid_type == ECIDT_O2T) && enip_OTrun_idle) ||
|
|
((connid_type == ECIDT_T2O) && enip_TOrun_idle))
|
|
{
|
|
io_item = proto_tree_add_item( item_tree, hf_enip_cpf_cdi_32bitheader, tvb, offset+6+(item_length-io_length), 4, ENC_LITTLE_ENDIAN );
|
|
io_tree = proto_item_add_subtree( io_item, ett_32bitheader_tree );
|
|
proto_tree_add_item(io_tree, hf_enip_cpf_cdi_32bitheader_roo, tvb, offset+6+(item_length-io_length), 4, ENC_LITTLE_ENDIAN );
|
|
proto_tree_add_item(io_tree, hf_enip_cpf_cdi_32bitheader_coo, tvb, offset+6+(item_length-io_length), 4, ENC_LITTLE_ENDIAN );
|
|
proto_tree_add_item(io_tree, hf_enip_cpf_cdi_32bitheader_run_idle, tvb, offset+6+(item_length-io_length), 4, ENC_LITTLE_ENDIAN );
|
|
io_length -= 4;
|
|
}
|
|
|
|
proto_tree_add_item(item_tree, hf_enip_connection_transport_data, tvb, offset+6+(item_length-io_length), io_length, ENC_NA);
|
|
}
|
|
}
|
|
}
|
|
} /* End of if send unit data */
|
|
|
|
break;
|
|
|
|
|
|
case LIST_IDENTITY_RESP:
|
|
|
|
/* Encapsulation version */
|
|
proto_tree_add_item( item_tree, hf_enip_encapver, tvb, offset+6, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Socket Address */
|
|
sockaddr_item = proto_tree_add_text( item_tree, tvb, offset+8, 16, "Socket Address");
|
|
sockaddr_tree = proto_item_add_subtree( sockaddr_item, ett_sockadd );
|
|
|
|
/* Socket address struct - sin_family */
|
|
proto_tree_add_item(sockaddr_tree, hf_enip_sinfamily,
|
|
tvb, offset+8, 2, ENC_BIG_ENDIAN );
|
|
|
|
/* Socket address struct - sin_port */
|
|
proto_tree_add_item(sockaddr_tree, hf_enip_sinport,
|
|
tvb, offset+10, 2, ENC_BIG_ENDIAN );
|
|
|
|
/* Socket address struct - sin_address */
|
|
proto_tree_add_item(sockaddr_tree, hf_enip_sinaddr,
|
|
tvb, offset+12, 4, ENC_BIG_ENDIAN );
|
|
|
|
/* Socket address struct - sin_zero */
|
|
proto_tree_add_item(sockaddr_tree, hf_enip_sinzero,
|
|
tvb, offset+16, 8, ENC_NA );
|
|
|
|
/* Vendor ID */
|
|
proto_tree_add_item(item_tree, hf_enip_lir_vendor,
|
|
tvb, offset+24, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Device Type */
|
|
proto_tree_add_item(item_tree, hf_enip_lir_devtype,
|
|
tvb, offset+26, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Product Code */
|
|
proto_tree_add_item(item_tree, hf_enip_lir_prodcode,
|
|
tvb, offset+28, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Revision */
|
|
proto_tree_add_item(item_tree, hf_enip_lir_revision,
|
|
tvb, offset+30, 2, ENC_NA );
|
|
|
|
/* Status */
|
|
proto_tree_add_item(item_tree, hf_enip_lir_status,
|
|
tvb, offset+32, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Serial Number */
|
|
proto_tree_add_item(item_tree, hf_enip_lir_serial,
|
|
tvb, offset+34, 4, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Product Name Length */
|
|
name_length = tvb_get_guint8( tvb, offset+38 );
|
|
proto_tree_add_item( item_tree, hf_enip_lir_namelen,
|
|
tvb, offset+38, 1, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Product Name */
|
|
proto_tree_add_item(item_tree, hf_enip_lir_name,
|
|
tvb, offset+39, name_length, ENC_ASCII|ENC_NA );
|
|
|
|
/* Append product name to info column */
|
|
if(check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_append_fstr( pinfo->cinfo, COL_INFO, ", %s",
|
|
tvb_format_text(tvb, offset+39, name_length));
|
|
}
|
|
|
|
/* State */
|
|
proto_tree_add_item(item_tree, hf_enip_lir_state,
|
|
tvb, offset+name_length+39, 1, ENC_LITTLE_ENDIAN );
|
|
break;
|
|
|
|
|
|
case SOCK_ADR_INFO_OT:
|
|
case SOCK_ADR_INFO_TO:
|
|
|
|
/* Socket address struct - sin_family */
|
|
proto_tree_add_item(item_tree, hf_enip_sinfamily,
|
|
tvb, offset+6, 2, ENC_BIG_ENDIAN );
|
|
|
|
/* Socket address struct - sin_port */
|
|
proto_tree_add_item(item_tree, hf_enip_sinport,
|
|
tvb, offset+8, 2, ENC_BIG_ENDIAN );
|
|
|
|
/* Socket address struct - sin_address */
|
|
proto_tree_add_item(item_tree, hf_enip_sinaddr,
|
|
tvb, offset+10, 4, ENC_BIG_ENDIAN );
|
|
|
|
/* Socket address struct - sin_zero */
|
|
proto_tree_add_item( item_tree, hf_enip_sinzero,
|
|
tvb, offset+14, 8, ENC_NA );
|
|
|
|
if ((FwdOpen == TRUE) || (FwdOpenReply == TRUE))
|
|
{
|
|
request_info = p_get_proto_data(pinfo->fd, proto_enip);
|
|
if (request_info != NULL)
|
|
{
|
|
if (item == SOCK_ADR_INFO_OT)
|
|
{
|
|
request_info->cip_info->connInfo->O2T.port = tvb_get_ntohs(tvb, offset+8);
|
|
request_info->cip_info->connInfo->O2T.ipaddress = tvb_get_ipv4(tvb, offset+10);
|
|
}
|
|
else
|
|
{
|
|
request_info->cip_info->connInfo->T2O.port = tvb_get_ntohs(tvb, offset+8);
|
|
request_info->cip_info->connInfo->T2O.ipaddress = tvb_get_ipv4(tvb, offset+10);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
|
|
case SEQ_ADDRESS:
|
|
conn_info = enip_get_io_connid( pinfo, tvb_get_letohl( tvb, offset+6 ), &connid_type);
|
|
proto_tree_add_item(item_tree, hf_enip_cpf_sai_connid, tvb, offset+6, 4, ENC_LITTLE_ENDIAN );
|
|
proto_tree_add_item(item_tree, hf_enip_cpf_sai_seqnum, tvb, offset+10, 4, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Add info to column */
|
|
if(check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO,
|
|
"Connection: ID=0x%08X, SEQ=%010d",
|
|
tvb_get_letohl( tvb, offset+6 ),
|
|
tvb_get_letohl( tvb, offset+10 ) );
|
|
}
|
|
|
|
break;
|
|
|
|
case LIST_SERVICES_RESP:
|
|
|
|
/* Encapsulation version */
|
|
proto_tree_add_item( item_tree, hf_enip_encapver, tvb, offset+6, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Capability flags */
|
|
temp_item = proto_tree_add_item( item_tree, hf_enip_lsr_capaflags, tvb, offset+8, 2, ENC_LITTLE_ENDIAN );
|
|
temp_tree = proto_item_add_subtree( temp_item, ett_lsrcf );
|
|
|
|
proto_tree_add_item( temp_tree, hf_enip_lsr_tcp, tvb, offset+8, 2, ENC_LITTLE_ENDIAN );
|
|
proto_tree_add_item( temp_tree, hf_enip_lsr_udp, tvb, offset+8, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Name of service */
|
|
proto_tree_add_item( item_tree, hf_enip_lsr_servicename, tvb, offset+10, 16, ENC_ASCII|ENC_NA );
|
|
|
|
/* Append service name to info column */
|
|
if(check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_append_fstr( pinfo->cinfo, COL_INFO, ", %s",
|
|
tvb_format_stringzpad(tvb, offset+10, 16) );
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
proto_tree_add_item(item_tree, hf_enip_cpf_data, tvb, offset+6, item_length, ENC_NA);
|
|
break;
|
|
|
|
} /* end of switch( item type ) */
|
|
|
|
} /* end of if( item length ) */
|
|
|
|
offset = offset + item_length + 4;
|
|
|
|
} /* end of while( item count ) */
|
|
|
|
/* See if there is a CIP connection to establish */
|
|
if (FwdOpenReply == TRUE)
|
|
{
|
|
request_info = p_get_proto_data(pinfo->fd, proto_enip);
|
|
if (request_info != NULL)
|
|
{
|
|
enip_open_cip_connection(pinfo, request_info->cip_info->connInfo);
|
|
}
|
|
p_remove_proto_data(pinfo->fd, proto_enip);
|
|
}
|
|
else if (FwdOpen == TRUE)
|
|
{
|
|
p_remove_proto_data(pinfo->fd, proto_enip);
|
|
}
|
|
|
|
} /* end of dissect_cpf() */
|
|
|
|
|
|
|
|
static int
|
|
classify_packet(packet_info *pinfo)
|
|
{
|
|
/* see if nature of packets can be derived from src/dst ports */
|
|
/* if so, return as found */
|
|
if ( ( ENIP_ENCAP_PORT == pinfo->srcport && ENIP_ENCAP_PORT != pinfo->destport ) ||
|
|
( ENIP_ENCAP_PORT != pinfo->srcport && ENIP_ENCAP_PORT == pinfo->destport ) ) {
|
|
if ( ENIP_ENCAP_PORT == pinfo->srcport )
|
|
return ENIP_RESPONSE_PACKET;
|
|
else if ( ENIP_ENCAP_PORT == pinfo->destport )
|
|
return ENIP_REQUEST_PACKET;
|
|
}
|
|
/* else, cannot classify */
|
|
return ENIP_CANNOT_CLASSIFY;
|
|
}
|
|
|
|
static guint
|
|
get_enip_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
|
|
{
|
|
guint16 plen;
|
|
|
|
/*
|
|
* Get the length of the data from the encapsulation header.
|
|
*/
|
|
plen = tvb_get_letohs(tvb, offset + 2);
|
|
|
|
/*
|
|
* That length doesn't include the encapsulation header itself;
|
|
* add that in.
|
|
*/
|
|
return plen + 24;
|
|
}
|
|
|
|
/* Code to actually dissect the packets */
|
|
static void
|
|
dissect_enip_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
int packet_type;
|
|
guint16 encap_cmd, encap_data_length;
|
|
const char *pkt_type_str = "";
|
|
guint32 ifacehndl;
|
|
enip_request_key_t request_key;
|
|
conversation_t *conversation;
|
|
|
|
/* Set up structures needed to add the protocol subtree and manage it */
|
|
proto_item *ti, *encaph, *csf;
|
|
proto_tree *enip_tree, *header_tree = NULL, *csftree;
|
|
|
|
/* Make entries in Protocol column and Info column on summary display */
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "ENIP");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
encap_cmd = tvb_get_letohs( tvb, 0 );
|
|
|
|
packet_type = classify_packet(pinfo);
|
|
|
|
if( check_col(pinfo->cinfo, COL_INFO) )
|
|
{
|
|
switch ( packet_type )
|
|
{
|
|
case ENIP_REQUEST_PACKET:
|
|
pkt_type_str="Req";
|
|
break;
|
|
|
|
case ENIP_RESPONSE_PACKET:
|
|
pkt_type_str="Rsp";
|
|
break;
|
|
|
|
case ENIP_CANNOT_CLASSIFY:
|
|
default:
|
|
pkt_type_str="?";
|
|
}
|
|
|
|
/* Add service and request/response to info column */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO,
|
|
"%s (%s)",
|
|
val_to_str(encap_cmd, encap_cmd_vals, "Unknown (0x%04x)"),
|
|
pkt_type_str );
|
|
|
|
|
|
} /* end of if( col exists ) */
|
|
|
|
|
|
/*
|
|
* We need to track some state for this protocol on a per conversation
|
|
* basis so we can do neat things like request/response tracking
|
|
*/
|
|
conversation = find_or_create_conversation(pinfo);
|
|
|
|
/*
|
|
* Attach that information to the conversation, and add
|
|
* it to the list of information structures later before dissection.
|
|
*/
|
|
memset( &request_key, 0, sizeof(enip_request_key_t) );
|
|
request_key.requesttype = packet_type;
|
|
request_key.type = EPDT_UNKNOWN;
|
|
request_key.session_handle = tvb_get_letohl( tvb, 4 );
|
|
request_key.sender_context = tvb_get_letoh64( tvb, 12 );
|
|
request_key.conversation = conversation->index;
|
|
|
|
encap_data_length = tvb_get_letohs( tvb, 2 );
|
|
enip_tree = NULL;
|
|
/* In the interest of speed, if "tree" is NULL, don't do any work not
|
|
necessary to generate protocol tree items. */
|
|
if (tree) {
|
|
/* create display subtree for the protocol */
|
|
ti = proto_tree_add_item(tree, proto_enip, tvb, 0, -1, ENC_NA );
|
|
|
|
enip_tree = proto_item_add_subtree(ti, ett_enip);
|
|
|
|
/* Add encapsulation header tree */
|
|
encaph = proto_tree_add_text( enip_tree, tvb, 0, 24, "Encapsulation Header");
|
|
header_tree = proto_item_add_subtree(encaph, ett_enip);
|
|
|
|
/* Add EtherNet/IP encapsulation header */
|
|
proto_tree_add_item( header_tree, hf_enip_command, tvb, 0, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
encap_data_length = tvb_get_letohs( tvb, 2 );
|
|
proto_tree_add_item( header_tree, hf_enip_length, tvb, 2, 2, ENC_LITTLE_ENDIAN );
|
|
proto_tree_add_item( header_tree, hf_enip_session, tvb, 4, 4, ENC_LITTLE_ENDIAN );
|
|
proto_tree_add_item( header_tree, hf_enip_status, tvb, 8, 4, ENC_LITTLE_ENDIAN );
|
|
proto_tree_add_item( header_tree, hf_enip_sendercontex, tvb, 12, 8, ENC_NA );
|
|
proto_tree_add_item( header_tree, hf_enip_options, tvb, 20, 4, ENC_LITTLE_ENDIAN );
|
|
|
|
/* Append session and command to the protocol tree */
|
|
proto_item_append_text( ti, ", Session: 0x%08X, %s", tvb_get_letohl( tvb, 4 ),
|
|
val_to_str( encap_cmd, encap_cmd_vals, "Unknown (0x%04x)" ) );
|
|
|
|
/*
|
|
** For some commands we want to add some info to the info column
|
|
*/
|
|
|
|
if( check_col( pinfo->cinfo, COL_INFO ) )
|
|
{
|
|
|
|
switch( encap_cmd )
|
|
{
|
|
case REGISTER_SESSION:
|
|
case UNREGISTER_SESSION:
|
|
col_append_fstr( pinfo->cinfo, COL_INFO, ", Session: 0x%08X",
|
|
tvb_get_letohl( tvb, 4 ) );
|
|
|
|
} /* end of switch() */
|
|
|
|
} /* end of id info column */
|
|
} /* end of tree */
|
|
|
|
/* Command specific data - create tree */
|
|
if( encap_data_length )
|
|
{
|
|
/* The packet have some command specific data, buid a sub tree for it */
|
|
|
|
csf = proto_tree_add_text( enip_tree, tvb, 24, encap_data_length,
|
|
"Command Specific Data");
|
|
|
|
csftree = proto_item_add_subtree(csf, ett_command_tree);
|
|
|
|
switch( encap_cmd )
|
|
{
|
|
case NOP:
|
|
break;
|
|
|
|
case LIST_SERVICES:
|
|
dissect_cpf( &request_key, encap_cmd, tvb, pinfo, csftree, tree, 24, 0 );
|
|
break;
|
|
|
|
case LIST_IDENTITY:
|
|
dissect_cpf( &request_key, encap_cmd, tvb, pinfo, csftree, tree, 24, 0 );
|
|
break;
|
|
|
|
case LIST_INTERFACES:
|
|
dissect_cpf( &request_key, encap_cmd, tvb, pinfo, csftree, tree, 24, 0 );
|
|
break;
|
|
|
|
case REGISTER_SESSION:
|
|
proto_tree_add_item( csftree, hf_enip_rs_version, tvb, 24, 2, ENC_LITTLE_ENDIAN );
|
|
proto_tree_add_item( csftree, hf_enip_rs_optionflags, tvb, 26, 2, ENC_LITTLE_ENDIAN );
|
|
break;
|
|
|
|
case UNREGISTER_SESSION:
|
|
break;
|
|
|
|
case SEND_RR_DATA:
|
|
proto_tree_add_item( csftree, hf_enip_srrd_ifacehnd, tvb, 24, 4, ENC_LITTLE_ENDIAN );
|
|
proto_tree_add_item( csftree, hf_enip_timeout, tvb, 28, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
ifacehndl = tvb_get_letohl( tvb, 24 );
|
|
dissect_cpf( &request_key, encap_cmd, tvb, pinfo, csftree, tree, 30, ifacehndl );
|
|
break;
|
|
|
|
case SEND_UNIT_DATA:
|
|
proto_tree_add_item(csftree, hf_enip_sud_ifacehnd, tvb, 24, 4, ENC_LITTLE_ENDIAN);
|
|
proto_tree_add_item( csftree, hf_enip_timeout, tvb, 28, 2, ENC_LITTLE_ENDIAN );
|
|
|
|
ifacehndl = tvb_get_letohl( tvb, 24 );
|
|
dissect_cpf( &request_key, encap_cmd, tvb, pinfo, csftree, tree, 30, ifacehndl );
|
|
break;
|
|
|
|
case INDICATE_STATUS:
|
|
case CANCEL:
|
|
default:
|
|
|
|
/* Can not decode - Just show the data */
|
|
proto_tree_add_item(header_tree, hf_enip_encap_data, tvb, 24, encap_data_length, ENC_NA);
|
|
break;
|
|
|
|
} /* end of switch() */
|
|
|
|
} /* end of if( encapsulated data ) */
|
|
} /* end of dissect_enip_pdu() */
|
|
|
|
static int
|
|
dissect_enip_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint16 encap_cmd;
|
|
|
|
/* An ENIP packet is at least 4 bytes long - we need the command type. */
|
|
if (!tvb_bytes_exist(tvb, 0, 4))
|
|
return 0;
|
|
|
|
/* Get the command type and see if it's valid. */
|
|
encap_cmd = tvb_get_letohs( tvb, 0 );
|
|
if (match_strval(encap_cmd, encap_cmd_vals) == NULL)
|
|
return 0; /* not a known command */
|
|
|
|
dissect_enip_pdu(tvb, pinfo, tree);
|
|
return tvb_length(tvb);
|
|
}
|
|
|
|
static int
|
|
dissect_enip_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint16 encap_cmd;
|
|
|
|
/* An ENIP packet is at least 4 bytes long - we need the command type. */
|
|
if (!tvb_bytes_exist(tvb, 0, 4))
|
|
return 0;
|
|
|
|
/* Get the command type and see if it's valid. */
|
|
encap_cmd = tvb_get_letohs( tvb, 0 );
|
|
if (match_strval(encap_cmd, encap_cmd_vals) == NULL)
|
|
return 0; /* not a known command */
|
|
|
|
tcp_dissect_pdus(tvb, pinfo, tree, enip_desegment, 4, get_enip_pdu_len, dissect_enip_pdu);
|
|
return tvb_length(tvb);
|
|
}
|
|
|
|
/* Code to actually dissect the io packets*/
|
|
static void
|
|
dissect_enipio(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
/* Set up structures needed to add the protocol subtree and manage it */
|
|
proto_item *ti;
|
|
proto_tree *enip_tree;
|
|
|
|
/* Make entries in Protocol column and Info column on summary display */
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "ENIP");
|
|
|
|
/* In the interest of speed, if "tree" is NULL, don't do any work not
|
|
necessary to generate protocol tree items. */
|
|
if (tree)
|
|
{
|
|
/* create display subtree for the protocol */
|
|
ti = proto_tree_add_item(tree, proto_enip, tvb, 0, -1, ENC_NA );
|
|
|
|
enip_tree = proto_item_add_subtree(ti, ett_enip);
|
|
|
|
dissect_cpf( NULL, 0xFFFF, tvb, pinfo, enip_tree, tree, 0, 0 );
|
|
}
|
|
|
|
} /* end of dissect_enipio() */
|
|
|
|
|
|
static gboolean
|
|
dissect_dlr(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_item *ti;
|
|
proto_tree *dlr_tree = NULL;
|
|
guint8 dlr_subtype;
|
|
guint8 dlr_protover;
|
|
guint8 dlr_frametype;
|
|
|
|
/* Make entries in Protocol column and Info column on summary display */
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "DLR");
|
|
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
if( tree )
|
|
{
|
|
/* Create display subtree for the protocol */
|
|
ti = proto_tree_add_item(tree, proto_dlr, tvb, 0, -1, ENC_NA );
|
|
dlr_tree = proto_item_add_subtree( ti, ett_dlr );
|
|
}
|
|
|
|
/* Get values for the Common Frame Header Format */
|
|
dlr_subtype = tvb_get_guint8(tvb, DLR_CFH_SUB_TYPE);
|
|
dlr_protover = tvb_get_guint8(tvb, DLR_CFH_PROTO_VERSION);
|
|
|
|
/* Dissect the Common Frame Header Format */
|
|
proto_tree_add_uint( dlr_tree, hf_dlr_ringsubtype, tvb, DLR_CFH_SUB_TYPE, 1, dlr_subtype );
|
|
proto_tree_add_uint( dlr_tree, hf_dlr_ringprotoversion, tvb, DLR_CFH_PROTO_VERSION, 1, dlr_protover );
|
|
|
|
/* Get values for the DLR Message Payload Fields */
|
|
dlr_frametype = tvb_get_guint8(tvb, DLR_MPF_FRAME_TYPE);
|
|
|
|
/* Dissect the DLR Message Payload Fields */
|
|
proto_tree_add_item( dlr_tree, hf_dlr_frametype, tvb, DLR_MPF_FRAME_TYPE, 1, ENC_BIG_ENDIAN );
|
|
proto_tree_add_item( dlr_tree, hf_dlr_sourceport, tvb, DLR_MPF_SOURCE_PORT, 1, ENC_BIG_ENDIAN );
|
|
proto_tree_add_item( dlr_tree, hf_dlr_sourceip, tvb, DLR_MPF_SOURCE_IP, 4, ENC_BIG_ENDIAN );
|
|
proto_tree_add_item( dlr_tree, hf_dlr_sequenceid, tvb, DLR_MPF_SEQUENCE_ID, 4, ENC_BIG_ENDIAN );
|
|
|
|
/* Add frame type to col info */
|
|
if( check_col(pinfo->cinfo, COL_INFO) )
|
|
{
|
|
col_add_fstr(pinfo->cinfo, COL_INFO,
|
|
"%s", val_to_str(dlr_frametype, dlr_frame_type_vals, "Unknown (0x%04x)") );
|
|
}
|
|
|
|
if( dlr_frametype == DLR_FT_BEACON )
|
|
{
|
|
/* Beacon */
|
|
proto_tree_add_item( dlr_tree, hf_dlr_ringstate, tvb, DLR_BE_RING_STATE, 1, ENC_BIG_ENDIAN );
|
|
proto_tree_add_item( dlr_tree, hf_dlr_supervisorprecedence, tvb, DLR_BE_SUPERVISOR_PRECEDENCE, 1, ENC_BIG_ENDIAN );
|
|
proto_tree_add_item( dlr_tree, hf_dlr_beaconinterval, tvb, DLR_BE_BEACON_INTERVAL, 4, ENC_BIG_ENDIAN );
|
|
proto_tree_add_item( dlr_tree, hf_dlr_beacontimeout, tvb, DLR_BE_BEACON_TIMEOUT, 4, ENC_BIG_ENDIAN );
|
|
proto_tree_add_item( dlr_tree, hf_dlr_beaconreserved, tvb, DLR_BE_RESERVED, 20, ENC_BIG_ENDIAN );
|
|
}
|
|
else if( dlr_frametype == DLR_FT_NEIGHBOR_REQ )
|
|
{
|
|
/* Neighbor_Check_Request */
|
|
proto_tree_add_item( dlr_tree, hf_dlr_nreqreserved, tvb, DLR_NREQ_RESERVED, 30, ENC_NA );
|
|
}
|
|
else if( dlr_frametype == DLR_FT_NEIGHBOR_RES )
|
|
{
|
|
/* Neighbor_Check_Response */
|
|
proto_tree_add_item( dlr_tree, hf_dlr_nressourceport, tvb, DLR_NRES_SOURCE_PORT, 1, ENC_BIG_ENDIAN );
|
|
proto_tree_add_item( dlr_tree, hf_dlr_nresreserved, tvb, DLR_NRES_RESERVED, 29, ENC_NA );
|
|
}
|
|
else if( dlr_frametype == DLR_FT_LINK_STAT )
|
|
{
|
|
/* Link_Status/Neighbor_Status */
|
|
proto_tree_add_item( dlr_tree, hf_dlr_lnknbrstatus, tvb, DLR_LNS_SOURCE_PORT, 1, ENC_BIG_ENDIAN );
|
|
proto_tree_add_item( dlr_tree, hf_dlr_lnknbrreserved, tvb, DLR_LNS_RESERVED, 29, ENC_NA );
|
|
}
|
|
else if( dlr_frametype == DLR_FT_LOCATE_FLT )
|
|
{
|
|
/* Locate_Fault */
|
|
proto_tree_add_item( dlr_tree, hf_dlr_lfreserved, tvb, DLR_LF_RESERVED, 30, ENC_NA );
|
|
}
|
|
else if( dlr_frametype == DLR_FT_ANNOUNCE )
|
|
{
|
|
/* Announce */
|
|
proto_tree_add_item( dlr_tree, hf_dlr_ringstate, tvb, DLR_AN_RING_STATE, 1, ENC_BIG_ENDIAN );
|
|
proto_tree_add_item( dlr_tree, hf_dlr_anreserved, tvb, DLR_AN_RESERVED, 29, ENC_NA );
|
|
}
|
|
else if( dlr_frametype == DLR_FT_SIGN_ON )
|
|
{
|
|
guint16 nCnt;
|
|
guint16 nNumNodes;
|
|
guint16 nOffset;
|
|
|
|
|
|
/* Sign_On */
|
|
nNumNodes = tvb_get_ntohs(tvb, DLR_SO_NUM_NODES);
|
|
|
|
proto_tree_add_uint( dlr_tree, hf_dlr_sonumnodes, tvb, DLR_SO_NUM_NODES, 2, nNumNodes );
|
|
|
|
/* Add each node in the list */
|
|
for( nCnt = 0, nOffset = DLR_SO_NODE_1_MAC; nCnt < nNumNodes; nCnt++ )
|
|
{
|
|
proto_tree_add_item( dlr_tree, hf_dlr_somac, tvb, nOffset, 6, ENC_NA );
|
|
nOffset += 6;
|
|
proto_tree_add_item( dlr_tree, hf_dlr_soip, tvb, nOffset, 4, ENC_BIG_ENDIAN );
|
|
nOffset += 4;
|
|
}
|
|
|
|
if( nOffset < 42 )
|
|
{
|
|
proto_tree_add_item( dlr_tree, hf_dlr_soreserved, tvb, nOffset, 42 - nOffset, ENC_NA );
|
|
nOffset += (42 - nOffset);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Unknown Frame type */
|
|
}
|
|
|
|
return tvb_length(tvb);
|
|
|
|
} /* end of dissect_dlr() */
|
|
|
|
|
|
/* Register the protocol with Wireshark */
|
|
|
|
/* this format is require because a script is used to build the C function
|
|
that calls all the protocol registration.
|
|
*/
|
|
|
|
void
|
|
proto_register_enip(void)
|
|
{
|
|
/* Setup list of header fields */
|
|
static hf_register_info hf[] = {
|
|
{ &hf_enip_command, { "Command", "enip.command", FT_UINT16, BASE_HEX, VALS(encap_cmd_vals), 0, "Encapsulation command", HFILL }},
|
|
{ &hf_enip_length, { "Length", "enip.length", FT_UINT16, BASE_DEC, NULL, 0, "Encapsulation length", HFILL }},
|
|
{ &hf_enip_session, { "Session Handle", "enip.session", FT_UINT32, BASE_HEX, NULL, 0, "Session identification", HFILL }},
|
|
{ &hf_enip_status, { "Status", "enip.status", FT_UINT32, BASE_HEX, VALS(encap_status_vals), 0, "Status code", HFILL }},
|
|
{ &hf_enip_sendercontex, { "Sender Context", "enip.context", FT_BYTES, BASE_NONE, NULL, 0, "Information pertient to the sender", HFILL }},
|
|
{ &hf_enip_options, { "Options", "enip.options", FT_UINT32, BASE_HEX, NULL, 0, "Options flags", HFILL }},
|
|
{ &hf_enip_encapver, { "Encapsulation Version", "enip.encapver", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_enip_sinfamily, { "sin_family", "enip.sinfamily", FT_UINT16, BASE_DEC, NULL, 0, "Socket Address.Sin Family", HFILL }},
|
|
{ &hf_enip_sinport, { "sin_port", "enip.sinport", FT_UINT16, BASE_DEC, NULL, 0, "Socket Address.Sin Port", HFILL }},
|
|
{ &hf_enip_sinaddr, { "sin_addr", "enip.sinaddr", FT_IPv4, BASE_NONE, NULL, 0, "Socket Address.Sin Addr", HFILL }},
|
|
{ &hf_enip_sinzero, { "sin_zero", "enip.sinzero", FT_BYTES, BASE_NONE, NULL, 0, "Socket Address.Sin Zero", HFILL }},
|
|
{ &hf_enip_timeout, { "Timeout", "enip.timeout", FT_UINT16, BASE_DEC, NULL, 0, "Encapsulation Timeout", HFILL }},
|
|
{ &hf_enip_encap_data, { "Encap Data", "enip.encap_data", FT_BYTES, BASE_NONE, NULL, 0, "Encapsulation Data", HFILL }},
|
|
/* List Services Reply */
|
|
{ &hf_enip_lsr_capaflags, { "Capability Flags", "enip.lsr.capaflags", FT_UINT16, BASE_HEX, NULL, 0, "ListServices Reply: Capability Flags", HFILL }},
|
|
{ &hf_enip_lsr_tcp, { "Supports CIP Encapsulation via TCP", "enip.lsr.capaflags.tcp", FT_UINT16, BASE_DEC, TFS(&tfs_true_false), 0x0020, "ListServices Reply: Supports CIP Encapsulation via TCP", HFILL }},
|
|
{ &hf_enip_lsr_udp, { "Supports CIP Class 0 or 1 via UDP", "enip.lsr.capaflags.udp", FT_UINT16, BASE_DEC, TFS(&tfs_true_false), 0x0100, "ListServices Reply: Supports CIP Class 0 or 1 via UDP", HFILL }},
|
|
{ &hf_enip_lsr_servicename, { "Name of Service", "enip.lsr.servicename", FT_STRING, BASE_NONE, NULL, 0, "ListServices Reply: Name of Service", HFILL }},
|
|
/* Register Session */
|
|
{ &hf_enip_rs_version, { "Protocol Version", "enip.rs.version", FT_UINT16, BASE_DEC, NULL, 0, "Register Session: Protocol Version", HFILL }},
|
|
{ &hf_enip_rs_optionflags, { "Option Flags", "enip.rs.flags", FT_UINT16, BASE_HEX, NULL, 0, "Register Session: Option Flags", HFILL }},
|
|
/* Send Request/Reply Data */
|
|
{ &hf_enip_srrd_ifacehnd, { "Interface Handle", "enip.srrd.iface", FT_UINT32, BASE_HEX, VALS(enip_interface_handle_vals), 0, "SendRRData: Interface handle", HFILL }},
|
|
/* Send Unit Data */
|
|
{ &hf_enip_sud_ifacehnd, { "Interface Handle", "enip.sud.iface", FT_UINT32, BASE_HEX, VALS(enip_interface_handle_vals), 0, "SendUnitData: Interface handle", HFILL }},
|
|
/* List identity reply */
|
|
{ &hf_enip_lir_vendor, { "Vendor ID", "enip.lir.vendor", FT_UINT16, BASE_HEX|BASE_EXT_STRING, &cip_vendor_vals_ext, 0, "ListIdentity Reply: Vendor ID", HFILL }},
|
|
{ &hf_enip_lir_devtype, { "Device Type", "enip.lir.devtype", FT_UINT16, BASE_DEC|BASE_EXT_STRING, &cip_devtype_vals_ext, 0, "ListIdentity Reply: Device Type", HFILL }},
|
|
{ &hf_enip_lir_prodcode, { "Product Code", "enip.lir.prodcode", FT_UINT16, BASE_DEC, NULL, 0, "ListIdentity Reply: Product Code", HFILL }},
|
|
{ &hf_enip_lir_revision, { "Revision", "enip.lir.revision", FT_UINT16, BASE_CUSTOM, enip_fmt_lir_revision, 0, "ListIdentity Reply: Revision", HFILL }},
|
|
{ &hf_enip_lir_status, { "Status", "enip.lir.status", FT_UINT16, BASE_HEX, NULL, 0, "ListIdentity Reply: Status", HFILL }},
|
|
{ &hf_enip_lir_serial, { "Serial Number", "enip.lir.serial", FT_UINT32, BASE_HEX, NULL, 0, "ListIdentity Reply: Serial Number", HFILL }},
|
|
{ &hf_enip_lir_namelen, { "Product Name Length", "enip.lir.namelen", FT_UINT8, BASE_DEC, NULL, 0, "ListIdentity Reply: Product Name Length", HFILL }},
|
|
{ &hf_enip_lir_name, { "Product Name", "enip.lir.name", FT_STRING, BASE_NONE, NULL, 0, "ListIdentity Reply: Product Name", HFILL }},
|
|
{ &hf_enip_lir_state, { "State", "enip.lir.state", FT_UINT8, BASE_HEX, NULL, 0, "ListIdentity Reply: State", HFILL }},
|
|
/* Common Packet Format */
|
|
{ &hf_enip_cpf_itemcount, { "Item Count", "enip.cpf.itemcount", FT_UINT16, BASE_DEC, NULL, 0, "Common Packet Format: Item Count", HFILL }},
|
|
{ &hf_enip_cpf_typeid, { "Type ID", "enip.cpf.typeid", FT_UINT16, BASE_HEX, VALS(cdf_type_vals), 0, "Common Packet Format: Type of encapsulated item", HFILL }},
|
|
{ &hf_enip_cpf_length, { "Length", "enip.cpf.length", FT_UINT16, BASE_DEC, NULL, 0, "Common Packet Format: Length", HFILL }},
|
|
/* Connected Data Item */
|
|
{ &hf_enip_cpf_cdi_seqcnt, { "Sequence Count", "enip.cpf.cdi.seqcnt", FT_UINT16, BASE_HEX, NULL, 0, "Common Packet Format: Connected Data Item, Sequence Count", HFILL }},
|
|
{ &hf_enip_cpf_cdi_32bitheader, { "32-bit Header", "enip.cpf.cdi.32bitheader", FT_UINT32, BASE_HEX, NULL, 0, "Common Packet Format: Connected Data Item, 32-bit Header", HFILL }},
|
|
{ &hf_enip_cpf_cdi_32bitheader_roo, { "ROO", "enip.cpf.cdi.roo", FT_UINT32, BASE_HEX, NULL, 0xC, "Common Packet Format: Connected Data Item, Ready for Ownership of Outputs", HFILL }},
|
|
{ &hf_enip_cpf_cdi_32bitheader_coo, { "COO", "enip.cpf.cdi.coo", FT_UINT32, BASE_HEX, NULL, 0x2, "Common Packet Format: Connected Data Item, Claim Output Ownership", HFILL }},
|
|
{ &hf_enip_cpf_cdi_32bitheader_run_idle, { "Run/Idle", "enip.cpf.cdi.run_idle", FT_UINT32, BASE_HEX, VALS(enip_run_idle_vals), 0x1, "Common Packet Format: Connected Data Item, Run/Idle", HFILL }},
|
|
/* Connection Address Item */
|
|
{ &hf_enip_cpf_cai_connid, { "Connection ID", "enip.cpf.cai.connid", FT_UINT32, BASE_HEX, NULL, 0, "Common Packet Format: Connection Address Item, Connection Identifier", HFILL }},
|
|
/* Sequenced Address Type */
|
|
{ &hf_enip_cpf_sai_connid, { "Connection ID", "enip.cpf.sai.connid", FT_UINT32, BASE_HEX, NULL, 0, "Common Packet Format: Sequenced Address Item, Connection Identifier", HFILL }},
|
|
{ &hf_enip_cpf_sai_seqnum, { "Sequence Number", "enip.cpf.sai.seq", FT_UINT32, BASE_DEC, NULL, 0, "Common Packet Format: Sequenced Address Item, Sequence Number", HFILL }},
|
|
{ &hf_enip_cpf_data, { "Data", "enip.cpf.data", FT_BYTES, BASE_NONE, NULL, 0, "Common Packet Format: Unknown Data", HFILL }},
|
|
/* Request/Response Matching */
|
|
{ &hf_enip_response_in, { "Response In", "enip.response_in", FT_FRAMENUM, BASE_NONE, NULL, 0x0, "The response to this ENIP request is in this frame", HFILL }},
|
|
{ &hf_enip_response_to, { "Request In", "enip.response_to", FT_FRAMENUM, BASE_NONE, NULL, 0x0, "This is a response to the ENIP request in this frame", HFILL }},
|
|
{ &hf_enip_time, { "Time", "enip.time", FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,"The time between the Call and the Reply", HFILL }},
|
|
{ &hf_enip_connection_transport_data, { "Data", "enip.connection_transport_data", FT_BYTES, BASE_NONE, NULL, 0x0, "Connection Transport Data", HFILL }},
|
|
|
|
{ &hf_tcpip_status, { "Status", "cip.tcpip.status", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_status_interface_config, { "Interface Configuration Status", "cip.tcpip.status.interface_config", FT_UINT32, BASE_DEC, enip_tcpip_status_interface_config_vals, 0x0000000F, NULL, HFILL }},
|
|
{ &hf_tcpip_status_mcast_pending, { "MCast Pending", "cip.tcpip.status.mcast_pending", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000010, NULL, HFILL }},
|
|
{ &hf_tcpip_status_interface_config_pending, { "Interface Configuration Pending", "cip.tcpip.status.interface_config_pending", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000020, NULL, HFILL }},
|
|
{ &hf_tcpip_status_acd, { "ACD Status", "cip.tcpip.status.acd", FT_UINT32, BASE_DEC, enip_tcpip_status_acd_vals, 0x00000040, NULL, HFILL }},
|
|
{ &hf_tcpip_status_reserved, { "Reserved", "cip.tcpip.status.reserved", FT_UINT32, BASE_HEX, NULL, 0xFFFFFF80, NULL, HFILL }},
|
|
{ &hf_tcpip_config_cap, { "Configuration Capability", "cip.tcpip.config_cap", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_config_cap_bootp, { "BOOTP Client", "cip.tcpip.config_cap.bootp", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000001, NULL, HFILL }},
|
|
{ &hf_tcpip_config_cap_dns, { "DNS Client", "cip.tcpip.config_cap.dns", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000002, NULL, HFILL }},
|
|
{ &hf_tcpip_config_cap_dhcp, { "DHCP Client", "cip.tcpip.config_cap.dhcp", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000004, NULL, HFILL }},
|
|
{ &hf_tcpip_config_cap_dhcp_dns_update, { "DHCP-DNS Update", "cip.tcpip.config_cap.dhcp_dns_update", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000008, NULL, HFILL }},
|
|
{ &hf_tcpip_config_cap_config_settable, { "Configuration Settable", "cip.tcpip.config_cap.config_settable", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000010, NULL, HFILL }},
|
|
{ &hf_tcpip_config_cap_hardware_config, { "Hardware Configurable", "cip.tcpip.config_cap.hardware_config", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000020, NULL, HFILL }},
|
|
{ &hf_tcpip_config_cap_interface_reset, { "Interface Configuration Change Requires Reset", "cip.tcpip.config_cap.interface_reset", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000040, NULL, HFILL }},
|
|
{ &hf_tcpip_config_cap_acd, { "ACD Capable", "cip.tcpip.config_cap.acd", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000080, NULL, HFILL }},
|
|
{ &hf_tcpip_config_cap_reserved, { "Reserved", "cip.tcpip.config_cap.reserved", FT_UINT32, BASE_HEX, NULL, 0xFFFFFF00, NULL, HFILL }},
|
|
{ &hf_tcpip_config_control, { "Configuration Control", "cip.tcpip.config_control", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_config_control_config, { "Configuration Method", "cip.tcpip.config_control.config", FT_UINT32, BASE_DEC, enip_tcpip_config_control_config_vals, 0x0000000F, NULL, HFILL }},
|
|
{ &hf_tcpip_config_control_dns, { "DNS Enable", "cip.tcpip.config_control.dns", FT_UINT32, BASE_DEC, TFS(&tfs_true_false), 0x00000010, NULL, HFILL }},
|
|
{ &hf_tcpip_config_control_reserved, { "Reserved", "cip.tcpip.config_control.reserved", FT_UINT32, BASE_HEX, NULL, 0xFFFFFFE0, NULL, HFILL }},
|
|
{ &hf_tcpip_physical_link_size, { "Size", "cip.tcpip.physical_link_size", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_ic_ip_addr, { "IP Address", "cip.tcpip.ip_addr", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_ic_subnet_mask, { "Subnet Mask", "cip.tcpip.subnet_mask", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_ic_gateway, { "Gateway", "cip.tcpip.gateway", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_ic_name_server, { "Name Server", "cip.tcpip.name_server", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_ic_name_server2, { "Name Server2", "cip.tcpip.name_server2", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_ic_domain_name, { "Domain Name", "cip.tcpip.domain_name", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_hostname, { "Hostname", "cip.tcpip.hostname", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_ttl_value, { "TTL Value", "cip.tcpip.ttl_value", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_mcast_alloc, { "Alloc Control", "cip.tcpip.mcast.alloc", FT_UINT8, BASE_DEC, enip_tcpip_mcast_alloc_vals, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_mcast_reserved, { "Reserved", "cip.tcpip.mcast.reserved", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_mcast_num_mcast, { "Num MCast", "cip.tcpip.mcast.num_mcast", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_mcast_addr_start, { "MCast Start Addr", "cip.tcpip.mcast.addr_start", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_select_acd, { "Select ACD", "cip.tcpip.select_acd", FT_UINT8, BASE_DEC, TFS(&tfs_enabled_disabled), 0, NULL, HFILL }},
|
|
{ &hf_tcpip_lcd_acd_activity, { "ACD Activity", "cip.tcpip.last_conflict.acd_activity", FT_UINT8, BASE_DEC, enip_tcpip_acd_activity_vals, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_lcd_remote_mac, { "RemoteMAC", "cip.tcpip.last_conflict.remote_mac", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_lcd_arp_pdu, { "Arp PDU", "cip.tcpip.last_conflict.arp_pdu", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_tcpip_quick_connect, { "Ethernet/IP Quick Connection", "cip.tcpip.quick_connect", FT_BOOLEAN, BASE_DEC, TFS(&tfs_enabled_disabled), 0x1, NULL, HFILL }},
|
|
|
|
{ &hf_elink_interface_speed, { "Interface Speed", "cip.elink.interface_speed", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_interface_flags, { "Interface Flags", "cip.elink.iflags", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_iflags_link_status, { "Link Status", "cip.elink.iflags.link_status", FT_UINT32, BASE_DEC, TFS(&tfs_active_inactive), 0x00000001, NULL, HFILL }},
|
|
{ &hf_elink_iflags_duplex, { "Duplex", "cip.elink.iflags.duplex", FT_UINT32, BASE_DEC, enip_elink_duplex_vals, 0x00000002, NULL, HFILL }},
|
|
{ &hf_elink_iflags_neg_status, { "Negotiation Status", "cip.elink.iflags.neg_status", FT_UINT32, BASE_DEC, enip_elink_iflags_neg_status_vals, 0x0000001C, NULL, HFILL }},
|
|
{ &hf_elink_iflags_manual_reset, { "Manual Reset Required", "cip.elink.iflags.manual_reset", FT_UINT32, BASE_DEC, enip_elink_iflags_reset_vals, 0x00000020, NULL, HFILL }},
|
|
{ &hf_elink_iflags_local_hw_fault, { "Local Hardware Fault", "cip.elink.iflags.local_hw_fault", FT_UINT32, BASE_DEC, enip_elink_iflags_hw_fault_vals, 0x00000040, NULL, HFILL }},
|
|
{ &hf_elink_iflags_reserved, { "Reserved", "cip.elink.iflags.reserved", FT_UINT32, BASE_HEX, NULL, 0xFFFFFF80, NULL, HFILL }},
|
|
{ &hf_elink_physical_address, { "Physical Addresss", "cip.elink.physical_address", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_in_octets, { "In Octets", "cip.elink.icount.in_octets", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_in_ucast, { "In Ucast Packets", "cip.elink.icount.in_ucast", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_in_nucast, { "In NUcast Packets", "cip.elink.icount.in_nucast", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_in_discards, { "In Discards", "cip.elink.icount.in_discards", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_in_errors, { "In Errors", "cip.elink.icount.in_errors", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_in_unknown_protos, { "In Unknown Protos", "cip.elink.icount.in_unknown_protos", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_out_octets, { "Out Octets", "cip.elink.icount.out_octets", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_out_ucast, { "Out Ucast Packets", "cip.elink.icount.out_ucast", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_out_nucast, { "Out NUcast Packets", "cip.elink.icount.out_nucast", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_out_discards, { "Out Discards", "cip.elink.icount.out_discards", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icount_out_errors, { "Out Errors", "cip.elink.icount.out_errors", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_alignment_errors, { "Alignment Errors", "cip.elink.mcount.alignment_errors", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_fcs_errors, { "FCS Errors", "cip.elink.mcount.fcs_errors", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_single_collisions, { "Single Collisions", "cip.elink.mcount.single_collisions", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_multiple_collisions, { "Multiple Collisions", "cip.elink.mcount.multiple_collisions", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_sqe_test_errors, { "SQE Test Errors", "cip.elink.mcount.sqe_test_errors", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_deferred_transmission, { "Deferred Transmission", "cip.elink.mcount.deferred_transmission", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_late_collisions, { "Late Collisions", "cip.elink.mcount.late_collisions", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_excessive_collisions, { "Excessive Collisions", "cip.elink.mcount.excessive_collisions", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_mac_transmit_errors, { "MAC Transmit Errors", "cip.elink.mcount.mac_transmit_errors", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_carrier_sense_errors, { "Carrier Sense Errors", "cip.elink.mcount.carrier_sense_errors", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_frame_too_long, { "Frame Too Long", "cip.elink.mcount.frame_too_long", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_mcount_mac_receive_errors, { "MAC Receive Errors", "cip.elink.mcount.mac_receive_errors", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icontrol_control_bits, { "Control Bits", "cip.elink.icontrol.control_bits", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_icontrol_control_bits_auto_neg, { "Auto-negotiate", "cip.elink.icontrol.control_bits.auto_neg", FT_UINT16, BASE_DEC, TFS(&tfs_enabled_disabled), 0x0001, NULL, HFILL }},
|
|
{ &hf_elink_icontrol_control_bits_forced_duplex, { "Forced Duplex Mode", "cip.elink.icontrol.control_bits.forced_duplex", FT_UINT16, BASE_DEC, enip_elink_duplex_vals, 0x0002, NULL, HFILL }},
|
|
{ &hf_elink_icontrol_control_bits_reserved, { "Reserved", "cip.elink.icontrol.control_bits.reserved", FT_UINT16, BASE_HEX, NULL, 0xFFFC, NULL, HFILL }},
|
|
{ &hf_elink_icontrol_forced_speed, { "Forced Interface Speed", "cip.elink.icontrol.forced_speed", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_elink_interface_type, { "Interface Type", "cip.elink.interface_type", FT_UINT8, BASE_DEC, enip_elink_interface_type_vals, 0, NULL, HFILL }},
|
|
{ &hf_elink_interface_state, { "Interface State", "cip.elink.interface_state", FT_UINT8, BASE_DEC, enip_elink_interface_state_vals, 0, NULL, HFILL }},
|
|
{ &hf_elink_admin_state, { "Admin State", "cip.elink.admin_state", FT_UINT8, BASE_DEC, enip_elink_admin_state_vals, 0, NULL, HFILL }},
|
|
{ &hf_elink_interface_label, { "Interface Label", "cip.elink.interface_label", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_qos_8021q_enable, { "802.1Q Tag Enable", "cip.qos.8021q_enable", FT_BOOLEAN, BASE_DEC, TFS(&tfs_enabled_disabled), 0x1, NULL, HFILL }},
|
|
{ &hf_qos_dscp_ptp_event, { "DSCP PTP Event", "cip.qos.ptp_event", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_qos_dscp_ptp_general, { "DSCP PTP General", "cip.qos.ptp_general", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_qos_dscp_urgent, { "DSCP Urgent", "cip.qos.urgent", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_qos_dscp_scheduled, { "DSCP Scheduled", "cip.qos.scheduled", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_qos_dscp_high, { "DSCP High", "cip.qos.high", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_qos_dscp_low, { "DSCP Low", "cip.qos.low", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }},
|
|
{ &hf_qos_dscp_explicit, { "DSCP Explicit", "cip.qos.explicit", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}
|
|
|
|
};
|
|
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_enip,
|
|
&ett_count_tree,
|
|
&ett_type_tree,
|
|
&ett_command_tree,
|
|
&ett_sockadd,
|
|
&ett_32bitheader_tree,
|
|
&ett_lsrcf,
|
|
&ett_tcpip_status,
|
|
&ett_tcpip_config_cap,
|
|
&ett_tcpip_config_control,
|
|
&ett_elink_interface_flags,
|
|
&ett_elink_icontrol_bits
|
|
};
|
|
|
|
/* Setup list of header fields for DLR See Section 1.6.1 for details*/
|
|
static hf_register_info hfdlr[] = {
|
|
/* Ring Sub-type */
|
|
{ &hf_dlr_ringsubtype,
|
|
{ "Subtype", "enip.dlr.ringsubtype",
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
"Ring Sub-Type", HFILL }
|
|
},
|
|
/* Ring Protocol Version */
|
|
{ &hf_dlr_ringprotoversion,
|
|
{ "Version", "enip.dlr.protversion",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
"Ring Protocol Version", HFILL }
|
|
},
|
|
/* Frame Type */
|
|
{ &hf_dlr_frametype,
|
|
{ "Frametype", "enip.dlr.frametype",
|
|
FT_UINT8, BASE_HEX, VALS(dlr_frame_type_vals), 0,
|
|
"Frame Type", HFILL }
|
|
},
|
|
/* Source Port */
|
|
{ &hf_dlr_sourceport,
|
|
{ "Sourceport", "enip.dlr.sourceport",
|
|
FT_UINT8, BASE_HEX, VALS(dlr_source_port_vals), 0,
|
|
"Source Port", HFILL }
|
|
},
|
|
/* Source IP Address */
|
|
{ &hf_dlr_sourceip,
|
|
{ "Source IP", "enip.dlr.sourceip",
|
|
FT_IPv4, BASE_NONE, NULL, 0,
|
|
"Source IP Address", HFILL }
|
|
},
|
|
/* Sequence ID*/
|
|
{ &hf_dlr_sequenceid,
|
|
{ "Sequence Id", "enip.dlr.seqid",
|
|
FT_UINT32, BASE_HEX, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
/* Ring State */
|
|
{ &hf_dlr_ringstate,
|
|
{ "Ring State", "enip.dlr.state",
|
|
FT_UINT8, BASE_HEX, VALS(dlr_ring_state_vals), 0,
|
|
NULL, HFILL }
|
|
},
|
|
/* Supervisor Precedence */
|
|
{ &hf_dlr_supervisorprecedence,
|
|
{ "Supervisor Precedence", "enip.dlr.supervisorprecedence",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
/* Beacon Interval */
|
|
{ &hf_dlr_beaconinterval,
|
|
{ "Beacon Interval", "enip.dlr.beaconinterval",
|
|
FT_UINT32, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
/* Beacon Timeout */
|
|
{ &hf_dlr_beacontimeout,
|
|
{ "Beacon Timeout", "enip.dlr.beacontimeout",
|
|
FT_UINT32, BASE_DEC, NULL, 0,
|
|
NULL, HFILL }
|
|
},
|
|
/* Beacon Reserved */
|
|
{ &hf_dlr_beaconreserved,
|
|
{ "Reserved", "enip.dlr.beaconreserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Beacon Reserved", HFILL }
|
|
},
|
|
/* Neighbor_Check_Request Reserved */
|
|
{ &hf_dlr_nreqreserved,
|
|
{ "Reserved", "enip.dlr.nreqreserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Neighbor_Check_Request Reserved", HFILL }
|
|
},
|
|
/* Neighbor_Check_Response Source Port */
|
|
{ &hf_dlr_nressourceport,
|
|
{ "Sourceport", "enip.dlr.nressourceport",
|
|
FT_UINT8, BASE_HEX, VALS(dlr_source_port_vals), 0,
|
|
"Neighbor_Check_Response Source Port", HFILL }
|
|
},
|
|
/* Neighbor_Check_Response Reserved */
|
|
{ &hf_dlr_nresreserved,
|
|
{ "Reserved", "enip.dlr.nresreserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Neighbor_Check_Response Reserved", HFILL }
|
|
},
|
|
/* Link_Status/Neighbor_Status Status */
|
|
{ &hf_dlr_lnknbrstatus,
|
|
{ "Status", "enip.dlr.lnknbrstatus",
|
|
FT_UINT8, BASE_HEX, VALS(dlr_lnk_nbr_status_vals), 0,
|
|
"Link_Status/Neighbor_Status Status", HFILL }
|
|
},
|
|
/* Link_Status/Neighbor_Status Reserved */
|
|
{ &hf_dlr_lnknbrreserved,
|
|
{ "Reserved", "enip.dlr.lnknbrreserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Link_Status/Neighbor_Status Reserved", HFILL }
|
|
},
|
|
/* Locate_Fault Reserved */
|
|
{ &hf_dlr_lfreserved,
|
|
{ "Reserved", "enip.dlr.lfreserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Locate_Fault Reserved", HFILL }
|
|
},
|
|
/* Announce Reserved */
|
|
{ &hf_dlr_anreserved,
|
|
{ "Reserved", "enip.dlr.anreserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Announce Reserved", HFILL }
|
|
},
|
|
/* Number of Nodes in List */
|
|
{ &hf_dlr_sonumnodes,
|
|
{ "Num nodes", "enip.dlr.sonumnodes",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
"Number of Nodes in List", HFILL }
|
|
},
|
|
/* Sign_On Node # MAC Address */
|
|
{ &hf_dlr_somac,
|
|
{ "MAC Address", "enip.dlr.somac",
|
|
FT_ETHER, BASE_NONE, NULL, 0,
|
|
"Sign_On Node MAC Address", HFILL }
|
|
},
|
|
/* Node # IP Address */
|
|
{ &hf_dlr_soip,
|
|
{ "IP Address", "enip.dlr.soip",
|
|
FT_IPv4, BASE_NONE, NULL, 0,
|
|
"Sign_On Node IP Address", HFILL }
|
|
},
|
|
/* Sign_On Reserved */
|
|
{ &hf_dlr_soreserved,
|
|
{ "Reserved", "enip.dlr.soreserved",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
"Sign_On Reserved", HFILL }
|
|
}
|
|
};
|
|
|
|
/* Setup protocol subtree array for DLR */
|
|
static gint *ettdlr[] = {
|
|
&ett_dlr
|
|
};
|
|
|
|
module_t *enip_module;
|
|
|
|
/* Register the protocol name and description */
|
|
proto_enip = proto_register_protocol("EtherNet/IP (Industrial Protocol)",
|
|
"ENIP", "enip");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_enip, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
enip_module = prefs_register_protocol(proto_enip, NULL);
|
|
prefs_register_bool_preference(enip_module, "desegment",
|
|
"Desegment all EtherNet/IP messages spanning multiple TCP segments",
|
|
"Whether the EtherNet/IP dissector should desegment all messages spanning multiple TCP segments",
|
|
&enip_desegment);
|
|
|
|
prefs_register_bool_preference(enip_module, "o2t_run_idle",
|
|
"Dissect 32-bit header in the O->T direction",
|
|
"Determines whether all I/O connections will assume a 32-bit header in the O->T direction",
|
|
&enip_OTrun_idle);
|
|
|
|
prefs_register_bool_preference(enip_module, "t2o_run_idle",
|
|
"Dissect 32-bit header in the T->O direction",
|
|
"Determines whether all I/O connections will assume a 32-bit header in the T->O direction",
|
|
&enip_TOrun_idle);
|
|
|
|
subdissector_sud_table = register_dissector_table("enip.sud.iface",
|
|
"SendUnitData.Interface Handle", FT_UINT32, BASE_HEX);
|
|
|
|
subdissector_srrd_table = register_dissector_table("enip.srrd.iface",
|
|
"SendRequestReplyData.Interface Handle", FT_UINT32, BASE_HEX);
|
|
|
|
register_init_routine(&enip_init_protocol);
|
|
|
|
/* Register the protocol name and description */
|
|
proto_dlr = proto_register_protocol("Device Level Ring", "DLR", "dlr");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_dlr, hfdlr, array_length(hfdlr));
|
|
proto_register_subtree_array(ettdlr, array_length(ettdlr));
|
|
|
|
/* Register a heuristic dissector on the data in the message so encapsulated protocols
|
|
* can dissect the data without modifying this file */
|
|
register_heur_dissector_list("enip.cpf.conndata", &heur_subdissector_conndata_table);
|
|
|
|
} /* end of proto_register_enip() */
|
|
|
|
|
|
/* If this dissector uses sub-dissector registration add a registration routine.
|
|
This format is required because a script is used to find these routines and
|
|
create the code that calls these routines.
|
|
*/
|
|
void
|
|
proto_reg_handoff_enip(void)
|
|
{
|
|
dissector_handle_t enip_udp_handle, enip_tcp_handle;
|
|
dissector_handle_t enipio_handle;
|
|
dissector_handle_t dlr_handle;
|
|
|
|
/* Register for EtherNet/IP, using TCP */
|
|
enip_tcp_handle = new_create_dissector_handle(dissect_enip_tcp, proto_enip);
|
|
dissector_add_uint("tcp.port", ENIP_ENCAP_PORT, enip_tcp_handle);
|
|
|
|
/* Register for EtherNet/IP, using UDP */
|
|
enip_udp_handle = new_create_dissector_handle(dissect_enip_udp, proto_enip);
|
|
dissector_add_uint("udp.port", ENIP_ENCAP_PORT, enip_udp_handle);
|
|
|
|
/* Register for EtherNet/IP IO data (UDP) */
|
|
enipio_handle = create_dissector_handle(dissect_enipio, proto_enip);
|
|
dissector_add_uint("udp.port", ENIP_IO_PORT, enipio_handle);
|
|
|
|
/* Find dissector for data packet */
|
|
data_handle = find_dissector("data");
|
|
|
|
/* Register for EtherNet/IP Device Level Ring protocol */
|
|
dlr_handle = new_create_dissector_handle(dissect_dlr, proto_dlr);
|
|
dissector_add_uint("ethertype", ETHERTYPE_DLR, dlr_handle);
|
|
|
|
} /* end of proto_reg_handoff_enip() */
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 3
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* ex: set shiftwidth=3 tabstop=8 expandtab:
|
|
* :indentSize=3:tabSize=8:noTabs=true:
|
|
*/
|