/* packet-enip.c * Routines for EtherNet/IP (Industrial Protocol) dissection * EtherNet/IP Home: www.odva.org * * This dissector includes items from: * CIP Volume 1: Common Industrial Protocol, Edition 3.24 * CIP Volume 2: EtherNet/IP Adaptation of CIP, Edition 1.23 * CIP Volume 8: CIP Security, Edition 1.6 * * Copyright 2003-2004 * Magnus Hansson * Joakim Wiberg * * Conversation data support for CIP * Jan Bartels, Siempelkamp Maschinen- und Anlagenbau GmbH & Co. KG * Copyright 2007 * * Ethernet/IP object support * Michael Mann * Copyright 2011 * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "config.h" #include #include #include #include #include #include #include #include "packet-tcp.h" #include "packet-cip.h" #include "packet-enip.h" #include "packet-cipsafety.h" #include "packet-dtls.h" #include "packet-tls.h" #include "packet-tls-utils.h" void proto_register_enip(void); void proto_reg_handoff_enip(void); /* Communication Ports */ #define ENIP_ENCAP_PORT 44818 /* EtherNet/IP located on port 44818 */ #define ENIP_SECURE_PORT 2221 /* EtherNet/IP TLS/DTLS port */ #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 #define ENCAP_HEADER_ERROR 0x006A /* EtherNet/IP Common Data Format Type IDs */ #define CDF_NULL 0x0000 #define LIST_IDENTITY_RESP 0x000C #define LIST_ID_SECURITY 0x0086 #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 #define UNCONNECTED_MSG_DTLS 0x8003 /* Initialize the protocol and registered fields */ static int proto_enip = -1; static int proto_cipio = -1; static int proto_cip_class1 = -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_listid_delay = -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_security_profiles = -1; static int hf_enip_security_profiles_eip_integrity = -1; static int hf_enip_security_profiles_eip_confidentiality = -1; static int hf_enip_security_profiles_cip_authorization = -1; static int hf_enip_security_profiles_cip_integrity = -1; static int hf_enip_security_profiles_reserved = -1; static int hf_enip_cip_security_state = -1; static int hf_enip_eip_security_state = -1; static int hf_enip_iana_port_state_flags = -1; static int hf_enip_iana_port_state_flags_tcp_44818 = -1; static int hf_enip_iana_port_state_flags_udp_44818 = -1; static int hf_enip_iana_port_state_flags_udp_2222 = -1; static int hf_enip_iana_port_state_flags_tcp_2221 = -1; static int hf_enip_iana_port_state_flags_udp_2221 = -1; static int hf_enip_iana_port_state_flags_reserved = -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_cip_sequence_count = -1; static int hf_cip_cm_ot_api = -1; static int hf_cip_cm_to_api = -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_ucmm_request = -1; static int hf_enip_cpf_ucmm_msg_type = -1; static int hf_enip_cpf_ucmm_trans_id = -1; static int hf_enip_cpf_ucmm_status = -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_fwd_open_in = -1; static int hf_cip_connection = -1; static int hf_cip_io_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_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_snn_timestamp = -1; static int hf_tcpip_snn_date = -1; static int hf_tcpip_snn_time = -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_tcpip_encap_inactivity = -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; static int hf_dlr_network_topology = -1; static int hf_dlr_network_status = -1; static int hf_dlr_ring_supervisor_status = -1; static int hf_dlr_rsc_ring_supervisor_enable = -1; static int hf_dlr_rsc_ring_supervisor_precedence = -1; static int hf_dlr_rsc_beacon_interval = -1; static int hf_dlr_rsc_beacon_timeout = -1; static int hf_dlr_rsc_dlr_vlan_id = -1; static int hf_dlr_ring_faults_count = -1; static int hf_dlr_lanp1_dev_ip_addr = -1; static int hf_dlr_lanp1_dev_physical_address = -1; static int hf_dlr_lanp2_dev_ip_addr = -1; static int hf_dlr_lanp2_dev_physical_address = -1; static int hf_dlr_ring_protocol_participants_count = -1; static int hf_dlr_rppl_dev_ip_addr = -1; static int hf_dlr_rppl_dev_physical_address = -1; static int hf_dlr_asa_supervisor_ip_addr = -1; static int hf_dlr_asa_supervisor_physical_address = -1; static int hf_dlr_active_supervisor_precedence = -1; static int hf_dlr_capability_flags = -1; static int hf_dlr_capflags_announce_base_node = -1; static int hf_dlr_capflags_beacon_base_node = -1; static int hf_dlr_capflags_reserved1 = -1; static int hf_dlr_capflags_supervisor_capable = -1; static int hf_dlr_capflags_reserved2 = -1; static int hf_dlr_capflags_redundant_gateway_capable = -1; static int hf_dlr_capflags_flush_frame_capable = -1; static int hf_dlr_rgc_red_gateway_enable = -1; static int hf_dlr_rgc_gateway_precedence = -1; static int hf_dlr_rgc_advertise_interval = -1; static int hf_dlr_rgc_advertise_timeout = -1; static int hf_dlr_rgc_learning_update_enable = -1; static int hf_dlr_redundant_gateway_status = -1; static int hf_dlr_aga_ip_addr = -1; static int hf_dlr_aga_physical_address = -1; static int hf_dlr_active_gateway_precedence = -1; static int hf_eip_security_state = -1; static int hf_eip_security_verify_client_cert = -1; static int hf_eip_security_send_cert_chain = -1; static int hf_eip_security_check_expiration = -1; static int hf_eip_security_capability_flags = -1; static int hf_eip_security_capflags_secure_renegotiation = -1; static int hf_eip_security_capflags_reserved = -1; static int hf_eip_security_num_avail_cipher_suites = -1; static int hf_eip_security_avail_cipher_suite = -1; static int hf_eip_security_num_allow_cipher_suites = -1; static int hf_eip_security_allow_cipher_suite = -1; static int hf_eip_security_num_psk = -1; static int hf_eip_security_psk_identity_size = -1; static int hf_eip_security_psk_identity = -1; static int hf_eip_security_psk_size = -1; static int hf_eip_security_psk = -1; static int hf_eip_security_num_active_certs = -1; static int hf_eip_security_num_trusted_auths = -1; static int hf_eip_cert_name = -1; static int hf_eip_cert_state = -1; static int hf_eip_cert_device_cert_status = -1; static int hf_eip_cert_ca_cert_status = -1; static int hf_eip_cert_capflags_push = -1; static int hf_eip_cert_capflags_reserved = -1; static int hf_eip_cert_capability_flags = -1; static int hf_eip_cert_num_certs = -1; static int hf_eip_cert_cert_name = -1; /* Initialize the subtree pointers */ static gint ett_enip = -1; static gint ett_cip_io_generic = -1; static gint ett_path = -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_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 gint ett_dlr_capability_flags = -1; static gint ett_dlr_lnknbrstatus_flags = -1; static gint ett_eip_security_capability_flags = -1; static gint ett_eip_security_psk = -1; static gint ett_eip_security_active_certs = -1; static gint ett_eip_security_trusted_auths = -1; static gint ett_eip_cert_capability_flags = -1; static gint ett_eip_cert_num_certs = -1; static gint ett_security_profiles = -1; static gint ett_iana_port_state_flags = -1; static gint ett_connection_info = -1; static gint ett_connection_path_info = -1; static expert_field ei_mal_tcpip_status = EI_INIT; static expert_field ei_mal_tcpip_config_cap = EI_INIT; static expert_field ei_mal_tcpip_config_control = EI_INIT; static expert_field ei_mal_tcpip_interface_config = EI_INIT; static expert_field ei_mal_tcpip_mcast_config = EI_INIT; static expert_field ei_mal_tcpip_last_conflict = EI_INIT; static expert_field ei_mal_tcpip_ssn = EI_INIT; static expert_field ei_mal_elink_interface_flags = EI_INIT; static expert_field ei_mal_elink_physical_address = EI_INIT; static expert_field ei_mal_elink_interface_counters = EI_INIT; static expert_field ei_mal_elink_media_counters = EI_INIT; static expert_field ei_mal_elink_interface_control = EI_INIT; static expert_field ei_mal_dlr_ring_supervisor_config = EI_INIT; static expert_field ei_mal_dlr_last_active_node_on_port_1 = EI_INIT; static expert_field ei_mal_dlr_last_active_node_on_port_2 = EI_INIT; static expert_field ei_mal_dlr_ring_protocol_participants_list = EI_INIT; static expert_field ei_mal_dlr_active_supervisor_address = EI_INIT; static expert_field ei_mal_dlr_capability_flags = EI_INIT; static expert_field ei_mal_dlr_redundant_gateway_config = EI_INIT; static expert_field ei_mal_dlr_active_gateway_address = EI_INIT; static expert_field ei_mal_eip_security_capability_flags = EI_INIT; static expert_field ei_mal_eip_security_avail_cipher_suites = EI_INIT; static expert_field ei_mal_eip_security_allow_cipher_suites = EI_INIT; static expert_field ei_mal_eip_security_preshared_keys = EI_INIT; static expert_field ei_mal_eip_security_active_certs = EI_INIT; static expert_field ei_mal_eip_security_trusted_auths = EI_INIT; static expert_field ei_mal_eip_cert_capability_flags = EI_INIT; static expert_field ei_mal_cpf_item_length_mismatch = EI_INIT; static expert_field ei_mal_cpf_item_minimum_size = EI_INIT; static dissector_table_t subdissector_srrd_table; static dissector_table_t subdissector_io_table; static dissector_table_t subdissector_decode_as_io_table; static dissector_table_t subdissector_class_table; static dissector_table_t subdissector_cip_connection_table; static dissector_handle_t arp_handle; static dissector_handle_t cipsafety_handle; static dissector_handle_t cip_io_generic_handle; static dissector_handle_t cip_implicit_handle; static dissector_handle_t cip_handle; static dissector_handle_t enip_tcp_handle; static dissector_handle_t cipio_handle; static dissector_handle_t cip_class1_handle; 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_lnknbrstatus_port1 = -1; static int hf_dlr_lnknbrstatus_port2 = -1; static int hf_dlr_lnknbrstatus_reserved = -1; static int hf_dlr_lnknbrstatus_frame_type = -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 int hf_dlr_advgatewaystate = -1; static int hf_dlr_advgatewayprecedence = -1; static int hf_dlr_advadvertiseinterval = -1; static int hf_dlr_advadvertisetimeout = -1; static int hf_dlr_advlearningupdateenable = -1; static int hf_dlr_advreserved = -1; static int hf_dlr_flushlearningupdateenable = -1; static int hf_dlr_flushreserved = -1; static int hf_dlr_learnreserved = -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" }, { ENCAP_HEADER_ERROR, "Encapsulated CIP service not allowed on this port" }, { 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" }, { LIST_ID_SECURITY, "CIP Security Information" }, { 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" }, { UNCONNECTED_MSG_DTLS, "Unconnected Message over UDP" }, { 0, NULL } }; static const value_string unconn_msg_type_vals[] = { { 0, "Reserved" }, { 1, "UCMM_NOACK" }, { 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, "Successfully negotiated speed and duplex" }, { 4, "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 } }; static const value_string enip_dlr_network_topology_vals[] = { { 0, "Linear" }, { 1, "Ring" }, { 0, NULL } }; static const value_string enip_dlr_network_status_vals[] = { { 0, "Normal" }, { 1, "Ring Fault" }, { 2, "Unexpected Loop Detected" }, { 3, "Partial Network Failure" }, { 4, "Rapid Fault/Restore Cycle" }, { 0, NULL } }; static const value_string enip_dlr_ring_supervisor_status_vals[] = { { 0, "Backup Ring Supervisor" }, { 1, "Active Ring Supervisor" }, { 2, "Ring Node" }, { 3, "Non-DLR Topology" }, { 4, "Cannot Support Parameters" }, { 0, NULL } }; static const value_string enip_dlr_redundant_gateway_status_vals[] = { { 0, "Non-Gateway DLR node" }, { 1, "Backup Gateway" }, { 2, "Active Gateway" }, { 3, "Gateway Fault" }, { 4, "Cannot Support Parameters" }, { 5, "Partial Network Fault" }, { 0, NULL } }; static const value_string cip_security_state_vals[] = { { 0, "Factory Default Configuration" }, { 1, "Initial Commissioning In Progress" }, { 2, "Configured" }, { 3, "Incomplete Configuration" }, { 0, NULL } }; static const value_string eip_security_state_vals[] = { { 0, "Factory Default Configuration" }, { 1, "Configuration In Progress" }, { 2, "Configured" }, { 0, NULL } }; static const value_string eip_cert_state_vals[] = { { 0, "Created" }, { 0, NULL } }; static const value_string eip_cert_status_vals[] = { { 0, "Not Verified" }, { 1, "Verified" }, { 2, "Invalid" }, { 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" }, { DLR_FT_ADVERTISE, "Advertise" }, { DLR_FT_FLUSH_TABLES, "Flush_Tables" }, { DLR_FT_LEARNING_UPDATE, "Learning_Update" }, { 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 Advertise State values */ static const value_string dlr_adv_state_vals[] = { { 0x01, "ACTIVE_LISTEN_STATE" }, { 0x02, "ACTIVE_NORMAL_STATE" }, { 0x03, "FAULT_STATE" }, { 0, NULL } }; /* Translate function to DLR Learning Update values */ static const value_string dlr_adv_learning_update_vals[] = { { 0, "Disabled" }, { 1, "Enabled" }, { 0, NULL } }; /* Translate function to DLR Flush Learning Update values */ static const value_string dlr_flush_learning_update_vals[] = { { 0, "Disabled" }, { 1, "Enabled" }, { 0, NULL } }; static const true_false_string dlr_lnknbrstatus_frame_type_vals = { "Neighbor_Status Frame", "Link_Status Frame" }; static void enip_prompt(packet_info *pinfo _U_, gchar* result) { g_snprintf(result, MAX_DECODE_AS_PROMPT_LEN, "Dissect unidentified I/O traffic as"); } static wmem_map_t *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 }; typedef struct enip_request_key { guint32 session_handle; enum enip_packet_type requesttype; enum enip_packet_data_type type; guint64 sender_context; guint32 conversation; union { struct { guint32 connid; guint16 sequence; } connected_transport; } data; } enip_request_key_t; typedef struct enip_request_val { wmem_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, ITEM_LABEL_LENGTH, "%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); if (key->type == EPDT_UNCONNECTED) { val += ((guint)(key->sender_context * 23)); } else if (key->type == EPDT_CONNECTED_TRANSPORT) { val += ((guint)(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; request_info = NULL; request_val = (enip_request_val_t *)wmem_map_lookup( enip_request_hashtable, prequest_key ); if (!pinfo->fd->visited) { if ( prequest_key && prequest_key->requesttype == ENIP_REQUEST_PACKET ) { if ( request_val == NULL ) { new_request_key = (enip_request_key_t *)wmem_memdup(wmem_file_scope(), prequest_key, sizeof(enip_request_key_t)); request_val = wmem_new(wmem_file_scope(), enip_request_val_t); request_val->frames = wmem_tree_new(wmem_file_scope()); wmem_map_insert(enip_request_hashtable, new_request_key, request_val ); } request_info = wmem_new(wmem_file_scope(), enip_request_info_t); request_info->req_num = pinfo->num; request_info->rep_num = 0; request_info->req_time = pinfo->abs_ts; request_info->cip_info = NULL; wmem_tree_insert32(request_val->frames, pinfo->num, (void *)request_info); } if ( request_val && prequest_key && prequest_key->requesttype == ENIP_RESPONSE_PACKET ) { request_info = (enip_request_info_t*)wmem_tree_lookup32_le( request_val->frames, pinfo->num ); if ( request_info ) { request_info->rep_num = pinfo->num; } } } else { if ( request_val ) request_info = (enip_request_info_t *)wmem_tree_lookup32_le( request_val->frames, pinfo->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->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; } typedef struct enip_conn_key { cip_connection_triad_t triad; guint32 O2TConnID; guint32 T2OConnID; } enip_conn_key_t; typedef struct _enip_conv_info_t { wmem_tree_t *O2TConnIDs; wmem_tree_t *T2OConnIDs; } enip_conv_info_t; /* * Conversation filter */ static gboolean enip_io_conv_valid(packet_info *pinfo) { enip_conn_val_t* conn = (enip_conn_val_t*)p_get_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_CONNECTION_INFO); if (conn == NULL) return FALSE; return (((conn->TransportClass_trigger & CI_TRANSPORT_CLASS_MASK) == 0) || ((conn->TransportClass_trigger & CI_TRANSPORT_CLASS_MASK) == 1)); } static gchar * enip_io_conv_filter(packet_info *pinfo) { char *buf; enip_conn_val_t* conn = (enip_conn_val_t*)p_get_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_CONNECTION_INFO); if (conn == NULL) return NULL; if (conn->close_frame > 0) { buf = g_strdup_printf( "((frame.number == %u) || ((frame.number >= %u) && (frame.number <= %u))) && " /* Frames between ForwardOpen and ForwardClose reply */ "((enip.cpf.sai.connid == 0x%08x || enip.cpf.sai.connid == 0x%08x) || " /* O->T and T->O Connection IDs */ "((cip.cm.conn_serial_num == 0x%04x) && (cip.cm.vendor == 0x%04x) && (cip.cm.orig_serial_num == 0x%08x)))", /* Connection Triad */ conn->open_frame, conn->open_reply_frame, conn->close_frame, conn->O2TConnID, conn->T2OConnID, conn->triad.ConnSerialNumber, conn->triad.VendorID, conn->triad.DeviceSerialNumber); } else { /* If Forward Close isn't found, don't limit the (end) frame range */ buf = g_strdup_printf( "((frame.number == %u) || (frame.number >= %u)) && " /* Frames starting with ForwardOpen */ "((enip.cpf.sai.connid == 0x%08x || enip.cpf.sai.connid == 0x%08x) || " /* O->T and T->O Connection IDs */ "((cip.cm.conn_serial_num == 0x%04x) && (cip.cm.vendor == 0x%04x) && (cip.cm.orig_serial_num == 0x%08x)))", /* Connection Triad */ conn->open_frame, conn->open_reply_frame, conn->O2TConnID, conn->T2OConnID, conn->triad.ConnSerialNumber, conn->triad.VendorID, conn->triad.DeviceSerialNumber); } return buf; } static gboolean enip_exp_conv_valid(packet_info *pinfo) { enip_conn_val_t* conn = (enip_conn_val_t*)p_get_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_CONNECTION_INFO); if (conn == NULL) return FALSE; return (((conn->TransportClass_trigger & CI_TRANSPORT_CLASS_MASK) == 2) || ((conn->TransportClass_trigger & CI_TRANSPORT_CLASS_MASK) == 3)); } static gchar * enip_exp_conv_filter(packet_info *pinfo) { char *buf; enip_conn_val_t* conn = (enip_conn_val_t*)p_get_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_CONNECTION_INFO); if (conn == NULL) return NULL; if (conn->close_frame > 0) { buf = g_strdup_printf( "((frame.number == %u) || ((frame.number >= %u) && (frame.number <= %u))) && " /* Frames between ForwardOpen and ForwardClose reply */ "((enip.cpf.cai.connid == 0x%08x || enip.cpf.cai.connid == 0x%08x) || " /* O->T and T->O Connection IDs */ "((cip.cm.conn_serial_num == 0x%04x) && (cip.cm.vendor == 0x%04x) && (cip.cm.orig_serial_num == 0x%08x)))", /* Connection Triad */ conn->open_frame, conn->open_reply_frame, conn->close_frame, conn->O2TConnID, conn->T2OConnID, conn->triad.ConnSerialNumber, conn->triad.VendorID, conn->triad.DeviceSerialNumber); } else { /* If Forward Close isn't found, don't limit the (end) frame range */ buf = g_strdup_printf( "((frame.number == %u) || (frame.number >= %u)) && " /* Frames between ForwardOpen and ForwardClose */ "((enip.cpf.cai.connid == 0x%08x || enip.cpf.cai.connid == 0x%08x) || " /* O->T and T->O Connection IDs */ "((cip.cm.conn_serial_num == 0x%04x) && (cip.cm.vendor == 0x%04x) && (cip.cm.orig_serial_num == 0x%08x)))", /* Connection Triad */ conn->open_frame, conn->open_reply_frame, conn->O2TConnID, conn->T2OConnID, conn->triad.ConnSerialNumber, conn->triad.VendorID, conn->triad.DeviceSerialNumber); } return buf; } static gboolean cip_connection_conv_valid(packet_info *pinfo) { return enip_io_conv_valid(pinfo) || enip_exp_conv_valid(pinfo); } static gchar* cip_connection_conv_filter(packet_info *pinfo) { char* buf = NULL; if (enip_io_conv_valid(pinfo)) { buf = enip_io_conv_filter(pinfo); } else if (enip_exp_conv_valid(pinfo)) { buf = enip_exp_conv_filter(pinfo); } return buf; } /* * Connection management */ static wmem_map_t *enip_conn_hashtable = NULL; static guint32 enip_unique_connid; 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->triad.ConnSerialNumber == v2->triad.ConnSerialNumber) && (v1->triad.VendorID == v2->triad.VendorID) && (v1->triad.DeviceSerialNumber == v2->triad.DeviceSerialNumber) && ((v1->O2TConnID == 0) || (v2->O2TConnID == 0) || (v1->O2TConnID == v2->O2TConnID)) && ((v1->T2OConnID == 0) || (v2->T2OConnID == 0) || (v1->T2OConnID == v2->T2OConnID))) 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->triad.ConnSerialNumber + key->triad.VendorID + key->triad.DeviceSerialNumber ); return val; } static 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->visited) return; // Don't create connections for Null Forward Opens. if (connInfo->T2O.type == CONN_TYPE_NULL && connInfo->O2T.type == CONN_TYPE_NULL) { return; } conn_key = wmem_new(wmem_file_scope(), enip_conn_key_t); conn_key->triad = connInfo->triad; conn_key->O2TConnID = connInfo->O2T.connID; conn_key->T2OConnID = connInfo->T2O.connID; conn_val = (enip_conn_val_t *)wmem_map_lookup( enip_conn_hashtable, conn_key ); if ( conn_val == NULL ) { conn_val = wmem_new(wmem_file_scope(), enip_conn_val_t); conn_val->triad = connInfo->triad; conn_val->O2TConnID = connInfo->O2T.connID; conn_val->T2OConnID = connInfo->T2O.connID; conn_val->TransportClass_trigger = connInfo->TransportClass_trigger; conn_val->safety = connInfo->safety; conn_val->ClassID = connInfo->ClassID; conn_val->ConnPoint = connInfo->ConnPoint; conn_val->open_frame = connInfo->forward_open_frame; conn_val->open_reply_frame = pinfo->num; conn_val->close_frame = 0; conn_val->connid = enip_unique_connid++; conn_val->FwdOpenPathLenBytes = connInfo->FwdOpenPathLenBytes; conn_val->pFwdOpenPathData = connInfo->pFwdOpenPathData; conn_val->O2Tapi = connInfo->O2T.api; conn_val->T2Oapi = connInfo->T2O.api; wmem_map_insert(enip_conn_hashtable, conn_key, conn_val ); /* I/O connection */ if (((connInfo->TransportClass_trigger & CI_TRANSPORT_CLASS_MASK) == 0) || ((connInfo->TransportClass_trigger & CI_TRANSPORT_CLASS_MASK) == 1)) { ws_in6_addr ipv6_zero = {0}; /* 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.type == AT_NONE) || ((connInfo->O2T.ipaddress.type == AT_IPv4) && ((*(const guint32*)connInfo->O2T.ipaddress.data)) == 0) || ((connInfo->O2T.ipaddress.type == AT_IPv6) && (memcmp(connInfo->O2T.ipaddress.data, &ipv6_zero, sizeof(ipv6_zero)) == 0)) || (connInfo->O2T.type != CONN_TYPE_MULTICAST)) copy_address_wmem(wmem_file_scope(), &connInfo->O2T.ipaddress, &pinfo->src); if ((connInfo->T2O.port == 0) || (connInfo->T2O.type == CONN_TYPE_MULTICAST)) connInfo->T2O.port = ENIP_IO_PORT; if ((connInfo->T2O.ipaddress.type == AT_NONE) || ((connInfo->T2O.ipaddress.type == AT_IPv4) && ((*(const guint32*)connInfo->T2O.ipaddress.data)) == 0) || ((connInfo->T2O.ipaddress.type == AT_IPv6) && (memcmp(connInfo->T2O.ipaddress.data, &ipv6_zero, sizeof(ipv6_zero)) == 0)) || (connInfo->T2O.type != CONN_TYPE_MULTICAST)) copy_address_wmem(wmem_file_scope(), &connInfo->T2O.ipaddress, &pinfo->dst); if (connInfo->O2T.ipaddress.type == AT_IPv6) { dest_address.type = AT_IPv6; dest_address.len = 16; } else { dest_address.type = AT_IPv4; dest_address.len = 4; } dest_address.data = connInfo->O2T.ipaddress.data; /* 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->num, &pinfo->dst, &dest_address, ENDPOINT_UDP, connInfo->O2T.port, 0, NO_PORT_B)) == NULL) { conversation = conversation_new(pinfo->num, &pinfo->dst, &dest_address, ENDPOINT_UDP, connInfo->O2T.port, 0, NO_PORT2); } enip_info = (enip_conv_info_t *)conversation_get_proto_data(conversation, proto_enip); if (enip_info == NULL) { enip_info = wmem_new(wmem_file_scope(), enip_conv_info_t); enip_info->O2TConnIDs = wmem_tree_new(wmem_file_scope()); enip_info->T2OConnIDs = wmem_tree_new(wmem_file_scope()); conversation_add_proto_data(conversation, proto_enip, enip_info); } wmem_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.data; if ((conversationTO = find_conversation(pinfo->num, &pinfo->src, &dest_address, ENDPOINT_UDP, connInfo->T2O.port, 0, NO_PORT_B)) == NULL) { conversationTO = conversation_new(pinfo->num, &pinfo->src, &dest_address, ENDPOINT_UDP, connInfo->T2O.port, 0, NO_PORT2); } enip_info = (enip_conv_info_t *)conversation_get_proto_data(conversationTO, proto_enip); if (enip_info == NULL) { enip_info = wmem_new(wmem_file_scope(), enip_conv_info_t); enip_info->O2TConnIDs = wmem_tree_new(wmem_file_scope()); enip_info->T2OConnIDs = wmem_tree_new(wmem_file_scope()); conversation_add_proto_data(conversationTO, proto_enip, enip_info); } wmem_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 = (enip_conv_info_t *)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 = wmem_new(wmem_file_scope(), enip_conv_info_t); enip_info->O2TConnIDs = wmem_tree_new(wmem_file_scope()); enip_info->T2OConnIDs = wmem_tree_new(wmem_file_scope()); conversation_add_proto_data(conversation, proto_enip, enip_info); } wmem_tree_insert32(enip_info->O2TConnIDs, connInfo->O2T.connID, (void *)conn_val); wmem_tree_insert32(enip_info->T2OConnIDs, connInfo->T2O.connID, (void *)conn_val); } } /* Save the connection info for the conversation filter */ p_add_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_CONNECTION_INFO, conn_val); } void enip_close_cip_connection(packet_info *pinfo, const cip_connection_triad_t* triad) { enip_conn_key_t conn_key; enip_conn_val_t *conn_val; if (pinfo->fd->visited) return; conn_key.triad = *triad; conn_key.O2TConnID = 0; conn_key.T2OConnID = 0; conn_val = (enip_conn_val_t *)wmem_map_lookup( enip_conn_hashtable, &conn_key ); if ( conn_val ) { conn_val->close_frame = pinfo->num; /* Save the connection info for the conversation filter */ p_add_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_CONNECTION_INFO, conn_val); } } /* Save the connection info for the conversation filter */ void enip_mark_connection_triad(packet_info *pinfo, const cip_connection_triad_t* triad) { enip_conn_key_t conn_key; enip_conn_val_t *conn_val; conn_key.triad = *triad; conn_key.O2TConnID = 0; conn_key.T2OConnID = 0; conn_val = (enip_conn_val_t *)wmem_map_lookup( enip_conn_hashtable, &conn_key ); if ( conn_val ) { p_add_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_CONNECTION_INFO, conn_val); } } static enip_conn_val_t * 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; enum enip_packet_type requesttype = ENIP_REQUEST_PACKET; if (prequest_key != NULL) { /* Sanity check */ if ((prequest_key->requesttype != ENIP_REQUEST_PACKET) && (prequest_key->requesttype != ENIP_RESPONSE_PACKET )) return NULL; requesttype = prequest_key->requesttype; } /* * Do we have a conversation for this connection? */ conversation = find_conversation_pinfo(pinfo, 0); if (conversation == NULL) return NULL; /* * Do we already have a state structure for this conv */ enip_info = (enip_conv_info_t *)conversation_get_proto_data(conversation, proto_enip); if (!enip_info) return NULL; conn_val = NULL; switch (requesttype ) { case ENIP_REQUEST_PACKET: conn_val = (enip_conn_val_t *)wmem_tree_lookup32( enip_info->O2TConnIDs, connid ); if ( conn_val == NULL ) conn_val = (enip_conn_val_t *)wmem_tree_lookup32( enip_info->T2OConnIDs, connid ); break; case ENIP_RESPONSE_PACKET: conn_val = (enip_conn_val_t *)wmem_tree_lookup32( enip_info->T2OConnIDs, connid ); if ( conn_val == NULL ) conn_val = (enip_conn_val_t *)wmem_tree_lookup32( enip_info->O2TConnIDs, connid ); break; case ENIP_CANNOT_CLASSIFY: /* ignore */ break; } if ((conn_val == NULL ) || (conn_val->open_reply_frame > pinfo->num)) return NULL; return conn_val; } 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->num, &pinfo->src, &pinfo->dst, conversation_pt_to_endpoint_type(pinfo->ptype), pinfo->destport, 0, NO_PORT_B); if (conversation == NULL) return NULL; /* * Do we already have a state structure for this conv */ if ((enip_info = (enip_conv_info_t *)conversation_get_proto_data(conversation, proto_enip)) == NULL) return NULL; if (enip_info->O2TConnIDs != NULL) conn_val = (enip_conn_val_t *)wmem_tree_lookup32( enip_info->O2TConnIDs, connid ); if ( conn_val == NULL ) { if (enip_info->T2OConnIDs != NULL) { if ((conn_val = (enip_conn_val_t *)wmem_tree_lookup32( enip_info->T2OConnIDs, connid)) != NULL) *pconnid_type = ECIDT_T2O; } } else { *pconnid_type = ECIDT_O2T; } if ((conn_val == NULL) || ( conn_val->open_reply_frame > pinfo->num )) return NULL; return conn_val; } static int dissect_tcpip_status(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { static const int * status[] = { &hf_tcpip_status_interface_config, &hf_tcpip_status_mcast_pending, &hf_tcpip_status_interface_config_pending, &hf_tcpip_status_acd, &hf_tcpip_status_reserved, NULL }; if (total_len < 4) { expert_add_info(pinfo, item, &ei_mal_tcpip_status); return total_len; } proto_tree_add_bitmask(tree, tvb, offset, hf_tcpip_status, ett_tcpip_status, status, ENC_LITTLE_ENDIAN); return 4; } static int dissect_tcpip_config_cap(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { static const int * capabilities[] = { &hf_tcpip_config_cap_bootp, &hf_tcpip_config_cap_dns, &hf_tcpip_config_cap_dhcp, &hf_tcpip_config_cap_dhcp_dns_update, &hf_tcpip_config_cap_config_settable, &hf_tcpip_config_cap_hardware_config, &hf_tcpip_config_cap_interface_reset, &hf_tcpip_config_cap_acd, &hf_tcpip_config_cap_reserved, NULL }; if (total_len < 4) { expert_add_info(pinfo, item, &ei_mal_tcpip_config_cap); return total_len; } proto_tree_add_bitmask(tree, tvb, offset, hf_tcpip_config_cap, ett_tcpip_config_cap, capabilities, ENC_LITTLE_ENDIAN); return 4; } static int dissect_tcpip_config_control(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { static const int * control_bits[] = { &hf_tcpip_config_control_config, &hf_tcpip_config_control_dns, &hf_tcpip_config_control_reserved, NULL }; if (total_len < 4) { expert_add_info(pinfo, item, &ei_mal_tcpip_config_control); return total_len; } proto_tree_add_bitmask(tree, tvb, offset, hf_tcpip_config_control, ett_tcpip_config_control, control_bits, ENC_LITTLE_ENDIAN); return 4; } static int dissect_tcpip_physical_link(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { return dissect_padded_epath_len_uint(pinfo, tree, item, tvb, offset, total_len); } static 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(pinfo, item, &ei_mal_tcpip_interface_config); 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); /* Add padding. */ domain_length += domain_length % 2; return (22+domain_length); } static int dissect_tcpip_hostname(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len _U_) { int parsed_len; parsed_len = dissect_cip_string_type(pinfo, tree, item, tvb, offset, hf_tcpip_hostname, CIP_STRING_TYPE); /* Add padding. */ parsed_len += parsed_len % 2; return parsed_len; } static int dissect_tcpip_ssn(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { if (total_len < 6) { expert_add_info(pinfo, item, &ei_mal_tcpip_ssn); return total_len; } dissect_cipsafety_ssn(tree, tvb, pinfo, offset, hf_tcpip_snn_timestamp, hf_tcpip_snn_date, hf_tcpip_snn_time); return 6; } static 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(pinfo, item, &ei_mal_tcpip_mcast_config); 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; } static int dissect_tcpip_last_conflict(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { tvbuff_t *next_tvb; gboolean save_info; if (total_len < 35) { expert_add_info(pinfo, item, &ei_mal_tcpip_last_conflict); 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_NA); if ( tvb_get_guint8(tvb, offset) == 0 ) proto_tree_add_item(tree, hf_tcpip_lcd_arp_pdu, tvb, offset+7, 28, ENC_NA); else { /* Dissect ARP PDU, but don't have it change column info */ save_info = col_get_writable(pinfo->cinfo, -1); col_set_writable(pinfo->cinfo, -1, FALSE); next_tvb = tvb_new_subset_length(tvb, offset+7, 28); call_dissector(arp_handle, next_tvb, pinfo, tree); col_set_writable(pinfo->cinfo, -1, save_info); } return 35; } static int dissect_elink_interface_flags(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { static const int * flags[] = { &hf_elink_iflags_link_status, &hf_elink_iflags_duplex, &hf_elink_iflags_neg_status, &hf_elink_iflags_manual_reset, &hf_elink_iflags_local_hw_fault, &hf_elink_iflags_reserved, NULL }; if (total_len < 4) { expert_add_info(pinfo, item, &ei_mal_elink_interface_flags); return total_len; } proto_tree_add_bitmask(tree, tvb, offset, hf_elink_interface_flags, ett_elink_interface_flags, flags, ENC_LITTLE_ENDIAN); return 4; } static int dissect_elink_physical_address(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { if (total_len < 6) { expert_add_info(pinfo, item, &ei_mal_elink_physical_address); return total_len; } proto_tree_add_item(tree, hf_elink_physical_address, tvb, offset, 6, ENC_NA); return 6; } static 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(pinfo, item, &ei_mal_elink_interface_counters); 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; } static 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(pinfo, item, &ei_mal_elink_media_counters); 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; } static int dissect_elink_interface_control(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { static const int * control_bits[] = { &hf_elink_icontrol_control_bits_auto_neg, &hf_elink_icontrol_control_bits_forced_duplex, &hf_elink_icontrol_control_bits_reserved, NULL }; if (total_len < 4) { expert_add_info(pinfo, item, &ei_mal_elink_interface_control); return total_len; } proto_tree_add_bitmask(tree, tvb, offset, hf_elink_icontrol_control_bits, ett_elink_icontrol_bits, control_bits, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_elink_icontrol_forced_speed, tvb, offset+2, 2, ENC_LITTLE_ENDIAN); return 4; } static int dissect_dlr_ring_supervisor_config(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { if (total_len < 12) { expert_add_info(pinfo, item, &ei_mal_dlr_ring_supervisor_config); return total_len; } proto_tree_add_item(tree, hf_dlr_rsc_ring_supervisor_enable, tvb, offset, 1, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_rsc_ring_supervisor_precedence, tvb, offset+1, 1, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_rsc_beacon_interval, tvb, offset+2, 4, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_rsc_beacon_timeout, tvb, offset+6, 4, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_rsc_dlr_vlan_id, tvb, offset+10, 2, ENC_LITTLE_ENDIAN); return 12; } static int dissect_dlr_last_active_node_on_port_1(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { if (total_len < 10) { expert_add_info(pinfo, item, &ei_mal_dlr_last_active_node_on_port_1); return total_len; } proto_tree_add_item(tree, hf_dlr_lanp1_dev_ip_addr, tvb, offset, 4, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_lanp1_dev_physical_address, tvb, offset+4, 6, ENC_NA); return 10; } static int dissect_dlr_last_active_node_on_port_2(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { if (total_len < 10) { expert_add_info(pinfo, item, &ei_mal_dlr_last_active_node_on_port_2); return total_len; } proto_tree_add_item(tree, hf_dlr_lanp2_dev_ip_addr, tvb, offset, 4, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_lanp2_dev_physical_address, tvb, offset+4, 6, ENC_NA); return 10; } static int dissect_dlr_ring_protocol_participants_list(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { int pos; if (total_len % 10) { expert_add_info(pinfo, item, &ei_mal_dlr_ring_protocol_participants_list); return total_len; } pos = 0; while ( pos < total_len) { proto_tree_add_item(tree, hf_dlr_rppl_dev_ip_addr, tvb, offset+pos, 4, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_rppl_dev_physical_address, tvb, offset+pos+4, 6, ENC_NA); pos+=10; } return total_len; } static int dissect_dlr_active_supervisor_address(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { if (total_len < 10) { expert_add_info(pinfo, item, &ei_mal_dlr_active_supervisor_address); return total_len; } proto_tree_add_item(tree, hf_dlr_asa_supervisor_ip_addr, tvb, offset, 4, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_asa_supervisor_physical_address, tvb, offset+4, 6, ENC_NA); return 10; } static int dissect_dlr_capability_flags(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { static const int * capabilities[] = { &hf_dlr_capflags_announce_base_node, &hf_dlr_capflags_beacon_base_node, &hf_dlr_capflags_reserved1, &hf_dlr_capflags_supervisor_capable, &hf_dlr_capflags_redundant_gateway_capable, &hf_dlr_capflags_flush_frame_capable, &hf_dlr_capflags_reserved2, NULL }; if (total_len < 4) { expert_add_info(pinfo, item, &ei_mal_dlr_capability_flags); return total_len; } proto_tree_add_bitmask(tree, tvb, offset, hf_dlr_capability_flags, ett_dlr_capability_flags, capabilities, ENC_LITTLE_ENDIAN); return 4; } static int dissect_dlr_redundant_gateway_config(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { if (total_len < 11) { expert_add_info(pinfo, item, &ei_mal_dlr_redundant_gateway_config); return total_len; } proto_tree_add_item(tree, hf_dlr_rgc_red_gateway_enable, tvb, offset, 1, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_rgc_gateway_precedence, tvb, offset+1, 1, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_rgc_advertise_interval, tvb, offset+2, 4, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_rgc_advertise_timeout, tvb, offset+6, 4, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_rgc_learning_update_enable, tvb, offset+10, 1, ENC_LITTLE_ENDIAN); return 11; } static int dissect_dlr_active_gateway_address(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { if (total_len < 10) { expert_add_info(pinfo, item, &ei_mal_dlr_active_gateway_address); return total_len; } proto_tree_add_item(tree, hf_dlr_aga_ip_addr, tvb, offset, 4, ENC_LITTLE_ENDIAN); proto_tree_add_item(tree, hf_dlr_aga_physical_address, tvb, offset+4, 6, ENC_NA); return 10; } static int dissect_eip_security_cap(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { static const int * capabilities[] = { &hf_eip_security_capflags_secure_renegotiation, &hf_eip_security_capflags_reserved, NULL }; if (total_len < 4) { expert_add_info(pinfo, item, &ei_mal_eip_security_capability_flags); return total_len; } proto_tree_add_bitmask(tree, tvb, offset, hf_eip_security_capability_flags, ett_eip_security_capability_flags, capabilities, ENC_LITTLE_ENDIAN); return 4; } static int dissect_eip_security_avail_cipher_suites(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { guint32 i, num_suites; if (total_len < 1) { expert_add_info(pinfo, item, &ei_mal_eip_security_avail_cipher_suites); return total_len; } proto_tree_add_item_ret_uint(tree, hf_eip_security_num_avail_cipher_suites, tvb, offset, 1, ENC_NA, &num_suites); for (i = 0; i < num_suites; i++) { proto_tree_add_item(tree, hf_eip_security_avail_cipher_suite, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; } return ((num_suites*2)+1); } static int dissect_eip_security_allow_cipher_suites(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { guint32 i, num_suites; if (total_len < 1) { expert_add_info(pinfo, item, &ei_mal_eip_security_allow_cipher_suites); return total_len; } proto_tree_add_item_ret_uint(tree, hf_eip_security_num_allow_cipher_suites, tvb, offset, 1, ENC_NA, &num_suites); for (i = 0; i < num_suites; i++) { proto_tree_add_item(tree, hf_eip_security_allow_cipher_suite, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; } return ((num_suites*2)+1); } static int dissect_eip_security_preshared_keys(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { guint32 i, num, id_size, psk_size; proto_item* ti; proto_tree* psk_tree; int start_offset = offset; if (total_len < 1) { expert_add_info(pinfo, item, &ei_mal_eip_security_preshared_keys); return total_len; } ti = proto_tree_add_item_ret_uint(tree, hf_eip_security_num_psk, tvb, offset, 1, ENC_NA, &num); psk_tree = proto_item_add_subtree(ti, ett_eip_security_psk); offset++; for (i = 0; i < num; i++) { proto_tree_add_item_ret_uint(psk_tree, hf_eip_security_psk_identity_size, tvb, offset, 1, ENC_NA, &id_size); if (total_len < (int)(id_size+2)) { expert_add_info(pinfo, item, &ei_mal_eip_security_preshared_keys); return total_len; } offset++; proto_tree_add_item(psk_tree, hf_eip_security_psk_identity, tvb, offset, id_size, ENC_NA); offset += id_size; proto_tree_add_item_ret_uint(psk_tree, hf_eip_security_psk_size, tvb, offset, 1, ENC_NA, &psk_size); offset++; if (total_len < (int)(id_size+psk_size+2)) { expert_add_info(pinfo, item, &ei_mal_eip_security_preshared_keys); return total_len; } proto_tree_add_item(psk_tree, hf_eip_security_psk, tvb, offset, psk_size, ENC_NA); offset += psk_size; } proto_item_set_len(ti, offset-start_offset); return offset-start_offset; } static int dissect_eip_security_active_certs(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { guint32 i, num, path_size; proto_item *ti; proto_tree* cert_tree; int start_offset = offset; if (total_len < 2) { expert_add_info(pinfo, item, &ei_mal_eip_security_active_certs); return total_len; } ti = proto_tree_add_item_ret_uint(tree, hf_eip_security_num_active_certs, tvb, offset, 1, ENC_NA, &num); cert_tree = proto_item_add_subtree(ti, ett_eip_security_active_certs); offset++; for (i = 0; i < num; i++) { path_size = dissect_padded_epath_len_usint(pinfo, cert_tree, ti, tvb, offset, total_len); offset += path_size; } proto_item_set_len(ti, offset-start_offset); return offset-start_offset; } static int dissect_eip_security_trusted_auths(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { guint32 i, num, path_size; proto_item *ti; proto_tree* cert_tree; int start_offset = offset; if (total_len < 2) { expert_add_info(pinfo, item, &ei_mal_eip_security_trusted_auths); return total_len; } ti = proto_tree_add_item_ret_uint(tree, hf_eip_security_num_trusted_auths, tvb, offset, 1, ENC_NA, &num); cert_tree = proto_item_add_subtree(ti, ett_eip_security_trusted_auths); offset++; for (i = 0; i < num; i++) { path_size = dissect_padded_epath_len_usint(pinfo, cert_tree, ti, tvb, offset, total_len); offset += path_size; } proto_item_set_len(ti, offset-start_offset); return offset-start_offset; } static int dissect_eip_security_cert_revocation_list(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { return dissect_padded_epath_len_usint(pinfo, tree, item, tvb, offset, total_len); } static int dissect_eip_cert_cap_flags(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { static const int * capabilities[] = { &hf_eip_cert_capflags_push, &hf_eip_cert_capflags_reserved, NULL }; if (total_len < 4) { expert_add_info(pinfo, item, &ei_mal_eip_cert_capability_flags); return total_len; } proto_tree_add_bitmask(tree, tvb, offset, hf_eip_cert_capability_flags, ett_eip_cert_capability_flags, capabilities, ENC_LITTLE_ENDIAN); return 4; } static int dissect_eip_cert_cert_list(packet_info *pinfo, proto_tree *tree, proto_item *item _U_, tvbuff_t *tvb, int offset, int total_len) { guint32 i, num, path_size; proto_item *ti; proto_tree* cert_tree; int start_offset = offset; ti = proto_tree_add_item_ret_uint(tree, hf_eip_cert_num_certs, tvb, offset, 1, ENC_NA, &num); cert_tree = proto_item_add_subtree(ti, ett_eip_cert_num_certs); offset++; for (i = 0; i < num; i++) { path_size = tvb_get_guint8( tvb, offset ); proto_tree_add_item(tree, hf_eip_cert_cert_name, tvb, offset+1, path_size, ENC_ASCII|ENC_NA); offset += (1+path_size); path_size = dissect_padded_epath_len_usint(pinfo, cert_tree, ti, tvb, offset, total_len); offset += path_size; } proto_item_set_len(ti, offset-start_offset); return offset-start_offset; } static int dissect_eip_cert_device_cert(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { guint32 path_size; proto_tree_add_item(tree, hf_eip_cert_device_cert_status, tvb, offset, 1, ENC_NA); offset++; path_size = dissect_padded_epath_len_usint(pinfo, tree, item, tvb, offset, total_len); return path_size + 1; } static int dissect_eip_cert_ca_cert(packet_info *pinfo, proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int total_len) { guint32 path_size; proto_tree_add_item(tree, hf_eip_cert_ca_cert_status, tvb, offset, 1, ENC_NA); offset++; path_size = dissect_padded_epath_len_usint(pinfo, tree, item, tvb, offset, total_len); return path_size + 1; } attribute_info_t enip_attribute_vals[99] = { /* TCP/IP Object (class attributes) */ {0xF5, TRUE, 1, 0, CLASS_ATTRIBUTE_1_NAME, cip_uint, &hf_attr_class_revision, NULL }, {0xF5, TRUE, 2, 1, CLASS_ATTRIBUTE_2_NAME, cip_uint, &hf_attr_class_max_instance, NULL }, {0xF5, TRUE, 3, 2, CLASS_ATTRIBUTE_3_NAME, cip_uint, &hf_attr_class_num_instance, NULL }, {0xF5, TRUE, 4, 3, CLASS_ATTRIBUTE_4_NAME, cip_dissector_func, NULL, dissect_optional_attr_list }, {0xF5, TRUE, 5, 4, CLASS_ATTRIBUTE_5_NAME, cip_dissector_func, NULL, dissect_optional_service_list }, {0xF5, TRUE, 6, 5, CLASS_ATTRIBUTE_6_NAME, cip_uint, &hf_attr_class_num_class_attr, NULL }, {0xF5, TRUE, 7, 6, CLASS_ATTRIBUTE_7_NAME, cip_uint, &hf_attr_class_num_inst_attr, NULL }, /* TCP/IP object (instance attributes) */ {0xF5, FALSE, 1, 0, "Status", cip_dissector_func, NULL, dissect_tcpip_status}, {0xF5, FALSE, 2, 1, "Configuration Capability", cip_dissector_func, NULL, dissect_tcpip_config_cap}, {0xF5, FALSE, 3, 2, "Configuration Control", cip_dissector_func, NULL, dissect_tcpip_config_control}, {0xF5, FALSE, 4, 3, "Physical Link Object", cip_dissector_func, NULL, dissect_tcpip_physical_link}, {0xF5, FALSE, 5, 4, "Interface Configuration", cip_dissector_func, NULL, dissect_tcpip_interface_config}, {0xF5, FALSE, 6, 5, "Host Name", cip_dissector_func, NULL, dissect_tcpip_hostname}, {0xF5, FALSE, 7, 6, "Safety Network Number", cip_dissector_func, NULL, dissect_tcpip_ssn}, {0xF5, FALSE, 8, 7, "TTL Value", cip_usint, &hf_tcpip_ttl_value, NULL}, {0xF5, FALSE, 9, 8, "Multicast Configuration", cip_dissector_func, NULL, dissect_tcpip_mcast_config}, {0xF5, FALSE, 10, 9, "Select ACD", cip_bool, &hf_tcpip_select_acd, NULL}, {0xF5, FALSE, 11, 10, "Last Conflict Detected", cip_dissector_func, NULL, dissect_tcpip_last_conflict}, {0xF5, FALSE, 12, 11, "EtherNet/IP Quick Connect", cip_bool, &hf_tcpip_quick_connect, NULL}, {0xF5, FALSE, 13, 12, "Encapsulation Inactivity Timeout", cip_uint, &hf_tcpip_encap_inactivity, NULL}, /* Ethernet Link Object (class attributes) */ {0xF6, TRUE, 1, 0, CLASS_ATTRIBUTE_1_NAME, cip_uint, &hf_attr_class_revision, NULL }, {0xF6, TRUE, 2, 1, CLASS_ATTRIBUTE_2_NAME, cip_uint, &hf_attr_class_max_instance, NULL }, {0xF6, TRUE, 3, 2, CLASS_ATTRIBUTE_3_NAME, cip_uint, &hf_attr_class_num_instance, NULL }, {0xF6, TRUE, 4, 3, CLASS_ATTRIBUTE_4_NAME, cip_dissector_func, NULL, dissect_optional_attr_list }, {0xF6, TRUE, 5, 4, CLASS_ATTRIBUTE_5_NAME, cip_dissector_func, NULL, dissect_optional_service_list }, {0xF6, TRUE, 6, 5, CLASS_ATTRIBUTE_6_NAME, cip_uint, &hf_attr_class_num_class_attr, NULL }, {0xF6, TRUE, 7, 6, CLASS_ATTRIBUTE_7_NAME, cip_uint, &hf_attr_class_num_inst_attr, NULL }, /* Ethernet Link object (instance attributes) */ {0xF6, FALSE, 1, 0, "Interface Speed", cip_dword, &hf_elink_interface_speed, NULL}, {0xF6, FALSE, 2, 1, "Interface Flags", cip_dissector_func, NULL, dissect_elink_interface_flags}, {0xF6, FALSE, 3, 2, "Physical Address", cip_dissector_func, NULL, dissect_elink_physical_address }, {0xF6, FALSE, 4, 3, "Interface Counters", cip_dissector_func, NULL, dissect_elink_interface_counters}, {0xF6, FALSE, 5, 4, "Media Counters", cip_dissector_func, NULL, dissect_elink_media_counters}, {0xF6, FALSE, 6, 5, "Interface Control", cip_dissector_func, NULL, dissect_elink_interface_control}, {0xF6, FALSE, 7, 6, "Interface Type", cip_usint, &hf_elink_interface_type, NULL}, {0xF6, FALSE, 8, 7, "Interface State", cip_usint, &hf_elink_interface_state, NULL}, {0xF6, FALSE, 9, 8, "Admin State", cip_usint, &hf_elink_admin_state, NULL}, {0xF6, FALSE, 10, 9, "Interface Label", cip_short_string, &hf_elink_interface_label, NULL}, /* QoS Object (class attributes) */ {0x48, TRUE, 1, 0, CLASS_ATTRIBUTE_1_NAME, cip_uint, &hf_attr_class_revision, NULL }, {0x48, TRUE, 2, 1, CLASS_ATTRIBUTE_2_NAME, cip_uint, &hf_attr_class_max_instance, NULL }, {0x48, TRUE, 3, 2, CLASS_ATTRIBUTE_3_NAME, cip_uint, &hf_attr_class_num_instance, NULL }, {0x48, TRUE, 4, 3, CLASS_ATTRIBUTE_4_NAME, cip_dissector_func, NULL, dissect_optional_attr_list }, {0x48, TRUE, 5, 4, CLASS_ATTRIBUTE_5_NAME, cip_dissector_func, NULL, dissect_optional_service_list }, {0x48, TRUE, 6, 5, CLASS_ATTRIBUTE_6_NAME, cip_uint, &hf_attr_class_num_class_attr, NULL }, {0x48, TRUE, 7, 6, CLASS_ATTRIBUTE_7_NAME, cip_uint, &hf_attr_class_num_inst_attr, NULL }, /* QoS object (instance attributes) */ {0x48, FALSE, 1, -1, "802.1Q Tag Enable", cip_bool, &hf_qos_8021q_enable, NULL}, {0x48, FALSE, 2, -1, "DSCP PTP Event", cip_usint, &hf_qos_dscp_ptp_event, NULL}, {0x48, FALSE, 3, -1, "DSCP PTP General", cip_usint, &hf_qos_dscp_ptp_general, NULL}, {0x48, FALSE, 4, -1, "DSCP Urgent", cip_usint, &hf_qos_dscp_urgent, NULL}, {0x48, FALSE, 5, -1, "DSCP Scheduled", cip_usint, &hf_qos_dscp_scheduled, NULL}, {0x48, FALSE, 6, -1, "DSCP High", cip_usint, &hf_qos_dscp_high, NULL}, {0x48, FALSE, 7, -1, "DSCP Low", cip_usint, &hf_qos_dscp_low, NULL}, {0x48, FALSE, 8, -1, "DSCP Explicit", cip_usint, &hf_qos_dscp_explicit, NULL}, /* DLR Object (class attributes) */ {0x47, TRUE, 1, 0, CLASS_ATTRIBUTE_1_NAME, cip_uint, &hf_attr_class_revision, NULL }, {0x47, TRUE, 2, 1, CLASS_ATTRIBUTE_2_NAME, cip_uint, &hf_attr_class_max_instance, NULL }, {0x47, TRUE, 3, 2, CLASS_ATTRIBUTE_3_NAME, cip_uint, &hf_attr_class_num_instance, NULL }, {0x47, TRUE, 4, 3, CLASS_ATTRIBUTE_4_NAME, cip_dissector_func, NULL, dissect_optional_attr_list }, {0x47, TRUE, 5, 4, CLASS_ATTRIBUTE_5_NAME, cip_dissector_func, NULL, dissect_optional_service_list }, {0x47, TRUE, 6, 5, CLASS_ATTRIBUTE_6_NAME, cip_uint, &hf_attr_class_num_class_attr, NULL }, {0x47, TRUE, 7, 6, CLASS_ATTRIBUTE_7_NAME, cip_uint, &hf_attr_class_num_inst_attr, NULL }, /* DLR object (instance attributes) */ /* Get Attributes All is not fully parsed here because there are multiple formats. */ {0x47, FALSE, 1, 0, "Network Topology", cip_usint, &hf_dlr_network_topology, NULL}, {0x47, FALSE, 2, 1, "Network Status", cip_usint, &hf_dlr_network_status, NULL}, {0x47, FALSE, 3, -1, "Ring Supervisor Status", cip_usint, &hf_dlr_ring_supervisor_status, NULL}, {0x47, FALSE, 4, -1, "Ring Supervisor Config", cip_dissector_func, NULL, dissect_dlr_ring_supervisor_config}, {0x47, FALSE, 5, -1, "Ring Faults Count", cip_uint, &hf_dlr_ring_faults_count, NULL}, {0x47, FALSE, 6, -1, "Last Active Node on Port 1", cip_dissector_func, NULL, dissect_dlr_last_active_node_on_port_1}, {0x47, FALSE, 7, -1, "Last Active Node on Port 2", cip_dissector_func, NULL, dissect_dlr_last_active_node_on_port_2}, {0x47, FALSE, 8, -1, "Ring Protocol Participants Count", cip_uint, &hf_dlr_ring_protocol_participants_count, NULL}, {0x47, FALSE, 9, -1, "Ring Protocol Participants List", cip_dissector_func, NULL, dissect_dlr_ring_protocol_participants_list}, {0x47, FALSE, 10, -1, "Active Supervisor Address", cip_dissector_func, NULL, dissect_dlr_active_supervisor_address}, {0x47, FALSE, 11, -1, "Active Supervisor Precedence", cip_usint, &hf_dlr_active_supervisor_precedence, NULL}, {0x47, FALSE, 12, -1, "Capability Flags", cip_dissector_func, NULL, dissect_dlr_capability_flags}, {0x47, FALSE, 13, -1, "Redundant Gateway Config", cip_dissector_func, NULL, dissect_dlr_redundant_gateway_config}, {0x47, FALSE, 14, -1, "Redundant Gateway Status", cip_usint, &hf_dlr_redundant_gateway_status, NULL}, {0x47, FALSE, 15, -1, "Active Gateway Address", cip_dissector_func, NULL, dissect_dlr_active_gateway_address}, {0x47, FALSE, 16, -1, "Active Gateway Precedence", cip_usint, &hf_dlr_active_gateway_precedence, NULL}, /* EtherNet/IP Security object (instance attributes) */ {0x5E, FALSE, 1, 0, "State", cip_usint, &hf_eip_security_state, NULL}, {0x5E, FALSE, 2, 1, "Capability Flags", cip_dissector_func, NULL, dissect_eip_security_cap}, {0x5E, FALSE, 3, 2, "Available Cipher Suites", cip_dissector_func, NULL, dissect_eip_security_avail_cipher_suites}, {0x5E, FALSE, 4, 3, "Allowed Cipher Suites", cip_dissector_func, NULL, dissect_eip_security_allow_cipher_suites}, {0x5E, FALSE, 5, 4, "Pre-Shared Keys", cip_dissector_func, NULL, dissect_eip_security_preshared_keys}, {0x5E, FALSE, 6, 5, "Active Device Certificates", cip_dissector_func, NULL, dissect_eip_security_active_certs}, {0x5E, FALSE, 7, 6, "Trusted Authorities", cip_dissector_func, NULL, dissect_eip_security_trusted_auths}, {0x5E, FALSE, 8, 7, "Certificate Revocation List", cip_dissector_func, NULL, dissect_eip_security_cert_revocation_list}, {0x5E, FALSE, 9, 8, "Verify Client Certificate", cip_bool, &hf_eip_security_verify_client_cert, NULL}, {0x5E, FALSE, 10, 9, "Send Certificate Chain", cip_bool, &hf_eip_security_send_cert_chain, NULL}, {0x5E, FALSE, 11, 10, "Check Expiration", cip_bool, &hf_eip_security_check_expiration, NULL}, /* Certificate Management Object (class attributes) */ {0x5F, TRUE, 1, 0, CLASS_ATTRIBUTE_1_NAME, cip_uint, &hf_attr_class_revision, NULL }, {0x5F, TRUE, 2, 1, CLASS_ATTRIBUTE_2_NAME, cip_uint, &hf_attr_class_max_instance, NULL }, {0x5F, TRUE, 3, -1, CLASS_ATTRIBUTE_3_NAME, cip_uint, &hf_attr_class_num_instance, NULL }, {0x5F, TRUE, 4, -1, CLASS_ATTRIBUTE_4_NAME, cip_dissector_func, NULL, dissect_optional_attr_list }, {0x5F, TRUE, 5, -1, CLASS_ATTRIBUTE_5_NAME, cip_dissector_func, NULL, dissect_optional_service_list }, {0x5F, TRUE, 6, 2, CLASS_ATTRIBUTE_6_NAME, cip_uint, &hf_attr_class_num_class_attr, NULL }, {0x5F, TRUE, 7, 3, CLASS_ATTRIBUTE_7_NAME, cip_uint, &hf_attr_class_num_inst_attr, NULL }, {0x5F, TRUE, 8, 4, "Capability Flags", cip_dissector_func, NULL, dissect_eip_cert_cap_flags }, {0x5F, TRUE, 9, 5, "Certificate List", cip_dissector_func, NULL, dissect_eip_cert_cert_list }, /* Certificate Management Object (instance attributes) */ {0x5F, FALSE, 1, 0, "Name", cip_short_string, &hf_eip_cert_name, NULL}, {0x5F, FALSE, 2, 1, "State", cip_usint, &hf_eip_cert_state, NULL}, {0x5F, FALSE, 3, 2, "Device Certificate", cip_dissector_func, NULL, dissect_eip_cert_device_cert}, {0x5F, FALSE, 4, 3, "CA Certificate", cip_dissector_func, NULL, dissect_eip_cert_ca_cert}, }; static void enip_init_protocol(void) { enip_unique_connid = 0; } // offset - Starts at the "Encapsulation Protocol Version" field. static void dissect_item_list_identity(packet_info* pinfo, tvbuff_t* tvb, int offset, proto_tree* item_tree) { /* Encapsulation version */ proto_tree_add_item(item_tree, hf_enip_encapver, tvb, offset, 2, ENC_LITTLE_ENDIAN); /* Socket Address */ proto_tree* sockaddr_tree = proto_tree_add_subtree(item_tree, tvb, offset + 2, 16, ett_sockadd, NULL, "Socket Address"); /* Socket address struct - sin_family */ proto_tree_add_item(sockaddr_tree, hf_enip_sinfamily, tvb, offset + 2, 2, ENC_BIG_ENDIAN); /* Socket address struct - sin_port */ proto_tree_add_item(sockaddr_tree, hf_enip_sinport, tvb, offset + 4, 2, ENC_BIG_ENDIAN); /* Socket address struct - sin_address */ proto_tree_add_item(sockaddr_tree, hf_enip_sinaddr, tvb, offset + 6, 4, ENC_BIG_ENDIAN); /* Socket address struct - sin_zero */ proto_tree_add_item(sockaddr_tree, hf_enip_sinzero, tvb, offset + 10, 8, ENC_NA); /* Vendor ID */ proto_tree_add_item(item_tree, hf_enip_lir_vendor, tvb, offset + 18, 2, ENC_LITTLE_ENDIAN); /* Device Type */ proto_tree_add_item(item_tree, hf_enip_lir_devtype, tvb, offset + 20, 2, ENC_LITTLE_ENDIAN); /* Product Code */ proto_tree_add_item(item_tree, hf_enip_lir_prodcode, tvb, offset + 22, 2, ENC_LITTLE_ENDIAN); /* Revision */ proto_tree_add_item(item_tree, hf_enip_lir_revision, tvb, offset + 24, 2, ENC_BIG_ENDIAN); /* Status */ proto_tree_add_item(item_tree, hf_enip_lir_status, tvb, offset + 26, 2, ENC_LITTLE_ENDIAN); /* Serial Number */ proto_tree_add_item(item_tree, hf_enip_lir_serial, tvb, offset + 28, 4, ENC_LITTLE_ENDIAN); /* Product Name Length */ guint32 name_length; proto_tree_add_item_ret_uint(item_tree, hf_enip_lir_namelen, tvb, offset + 32, 1, ENC_LITTLE_ENDIAN, &name_length); /* Product Name */ proto_tree_add_item(item_tree, hf_enip_lir_name, tvb, offset + 33, name_length, ENC_ASCII | ENC_NA); /* Append product name to info column */ col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", tvb_format_text(tvb, offset + 33, name_length)); /* State */ proto_tree_add_item(item_tree, hf_enip_lir_state, tvb, offset + name_length + 33, 1, ENC_LITTLE_ENDIAN); } // offset - Starts at the "Security Profiles" field. static void dissect_item_cip_security_information(tvbuff_t* tvb, int offset, proto_tree* item_tree) { static const int * security_profiles[] = { &hf_enip_security_profiles_eip_integrity, &hf_enip_security_profiles_eip_confidentiality, &hf_enip_security_profiles_cip_authorization, &hf_enip_security_profiles_cip_integrity, &hf_enip_security_profiles_reserved, NULL }; static const int * iana_flags[] = { &hf_enip_iana_port_state_flags_tcp_44818, &hf_enip_iana_port_state_flags_udp_44818, &hf_enip_iana_port_state_flags_udp_2222, &hf_enip_iana_port_state_flags_tcp_2221, &hf_enip_iana_port_state_flags_udp_2221, &hf_enip_iana_port_state_flags_reserved, NULL }; /* Security profiles */ proto_tree_add_bitmask(item_tree, tvb, offset, hf_enip_security_profiles, ett_security_profiles, security_profiles, ENC_LITTLE_ENDIAN); /* CIP Security object state */ proto_tree_add_item(item_tree, hf_enip_cip_security_state, tvb, offset + 2, 1, ENC_LITTLE_ENDIAN); /* ENIP Security object state */ proto_tree_add_item(item_tree, hf_enip_eip_security_state, tvb, offset + 3, 1, ENC_LITTLE_ENDIAN); /* IANA Port State flags */ proto_tree_add_bitmask(item_tree, tvb, offset + 4, hf_enip_iana_port_state_flags, ett_iana_port_state_flags, iana_flags, ENC_LITTLE_ENDIAN); } // offset - Starts at the "Encapsulation Protocol Version" field. static void dissect_item_list_services_response(packet_info* pinfo, tvbuff_t* tvb, int offset, proto_tree* item_tree) { /* Encapsulation version */ proto_tree_add_item(item_tree, hf_enip_encapver, tvb, offset, 2, ENC_LITTLE_ENDIAN); /* Capability flags */ static const int* capability_bits[] = { &hf_enip_lsr_tcp, &hf_enip_lsr_udp, NULL }; proto_tree_add_bitmask(item_tree, tvb, offset + 2, hf_enip_lsr_capaflags, ett_lsrcf, capability_bits, ENC_LITTLE_ENDIAN); /* Name of service */ proto_tree_add_item(item_tree, hf_enip_lsr_servicename, tvb, offset + 4, 16, ENC_ASCII | ENC_NA); /* Append service name to info column */ col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", tvb_format_stringzpad(tvb, offset + 4, 16)); } static void display_fwd_open_connection_path(enip_conn_val_t* conn_info, proto_tree* tree, tvbuff_t* tvb, packet_info* pinfo) { if (!conn_info->pFwdOpenPathData) { return; } tvbuff_t* tvbIOI = tvb_new_real_data((const guint8*)conn_info->pFwdOpenPathData, conn_info->FwdOpenPathLenBytes, conn_info->FwdOpenPathLenBytes); if (tvbIOI) { proto_item* pi = NULL; proto_tree* epath_tree = proto_tree_add_subtree(tree, tvb, 0, 0, ett_connection_path_info, &pi, "Connection Path: "); PROTO_ITEM_SET_GENERATED(pi); dissect_epath(tvbIOI, pinfo, epath_tree, pi, 0, conn_info->FwdOpenPathLenBytes, TRUE, FALSE, NULL, NULL, NO_DISPLAY, NULL, FALSE); tvb_free(tvbIOI); } } static void display_connection_information(packet_info* pinfo, tvbuff_t* tvb, proto_tree* tree, enip_conn_val_t* conn_info, enum enip_connid_type connid_type) { proto_item* pi = NULL; proto_tree* conn_info_tree = proto_tree_add_subtree(tree, tvb, 0, 0, ett_connection_info, &pi, "Connection Information"); PROTO_ITEM_SET_GENERATED(pi); if (connid_type == ECIDT_O2T) { proto_item_append_text(pi, ": O->T"); } else if (connid_type == ECIDT_T2O) { proto_item_append_text(pi, ": T->O"); } display_fwd_open_connection_path(conn_info, conn_info_tree, tvb, pinfo); pi = proto_tree_add_uint_format_value(conn_info_tree, hf_cip_cm_ot_api, tvb, 0, 0, conn_info->O2Tapi, "%dms (0x%08X)", conn_info->O2Tapi / 1000, conn_info->O2Tapi); PROTO_ITEM_SET_GENERATED(pi); pi = proto_tree_add_uint_format_value(conn_info_tree, hf_cip_cm_to_api, tvb, 0, 0, conn_info->T2Oapi, "%dms (0x%08X)", conn_info->T2Oapi / 1000, conn_info->T2Oapi); PROTO_ITEM_SET_GENERATED(pi); pi = proto_tree_add_uint(conn_info_tree, hf_cip_connection, tvb, 0, 0, conn_info->connid); PROTO_ITEM_SET_GENERATED(pi); pi = proto_tree_add_uint(conn_info_tree, hf_enip_fwd_open_in, tvb, 0, 0, conn_info->open_frame); PROTO_ITEM_SET_GENERATED(pi); } // This dissects Class 0 or Class 1 I/O. // offset - Starts at the field after the Item Length field. static int dissect_cip_io_generic(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data) { cip_io_data_input* io_data_input = (cip_io_data_input*)data; int offset = 0; proto_item* ti = proto_tree_add_item(tree, proto_cipio, tvb, 0, -1, ENC_NA); proto_tree* io_tree = proto_item_add_subtree(ti, ett_cip_io_generic); if (io_data_input != NULL) { if ((io_data_input->conn_info->TransportClass_trigger & CI_TRANSPORT_CLASS_MASK) == 1) { proto_tree_add_item(io_tree, hf_cip_sequence_count, tvb, offset, 2, ENC_LITTLE_ENDIAN); offset += 2; } if ((tvb_reported_length_remaining(tvb, offset) >= 4) && (((io_data_input->connid_type == ECIDT_O2T) && enip_OTrun_idle) || ((io_data_input->connid_type == ECIDT_T2O) && enip_TOrun_idle))) { dissect_cip_run_idle(tvb, offset, io_tree); offset += 4; } } proto_tree_add_item(io_tree, hf_cip_io_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); return tvb_captured_length(tvb); } // Dissect the various kinds of CIP Class 0/1 I/O formats. This will determine the appropriate format and // call the appropriate related dissector. // offset - Starts at the field after the Item Length field. static void dissect_cip_class01_io(packet_info* pinfo, tvbuff_t* tvb, int offset, int item_length, enip_conn_val_t* conn_info, enum enip_connid_type connid_type, proto_tree* dissector_tree) { if (tvb_reported_length_remaining(tvb, offset) <= 0) { return; } /* Display data */ tvbuff_t* next_tvb = tvb_new_subset_length(tvb, offset, item_length); if (conn_info != NULL) { cip_io_data_input io_data_input; io_data_input.conn_info = conn_info; io_data_input.connid_type = connid_type; if (conn_info->safety.safety_seg == TRUE) { /* Add any possible safety related data */ cip_safety_info_t cip_safety; cip_safety.conn_type = connid_type; cip_safety.eip_conn_info = conn_info; cip_safety.compute_crc = TRUE; call_dissector_with_data(cipsafety_handle, next_tvb, pinfo, dissector_tree, &cip_safety); } else { dissector_handle_t dissector = dissector_get_uint_handle(subdissector_io_table, conn_info->ClassID); if (dissector) { call_dissector_with_data(dissector, next_tvb, pinfo, dissector_tree, &io_data_input); } else { call_dissector_with_data(cip_io_generic_handle, next_tvb, pinfo, dissector_tree, &io_data_input); } } } else { // This handles the Decode As options if (!dissector_try_payload(subdissector_decode_as_io_table, next_tvb, pinfo, dissector_tree)) { call_dissector_with_data(cip_io_generic_handle, next_tvb, pinfo, dissector_tree, NULL); } } } // Dissect CIP Class 2/3 data. This will determine the appropriate format and call the appropriate related dissector. // offset - Starts at the field after the Item Length field. static void dissect_cip_class23_data(packet_info* pinfo, tvbuff_t* tvb, int offset, proto_tree* tree, proto_tree* item_tree, guint32 item_length, enip_request_key_t* request_key, enip_conn_val_t* conn_info, proto_tree* dissector_tree) { enip_request_info_t* request_info = NULL; if (request_key) { request_key->type = EPDT_CONNECTED_TRANSPORT; request_key->data.connected_transport.sequence = tvb_get_letohs(tvb, offset); request_info = enip_match_request(pinfo, tree, request_key); } /* Add sequence count ( Transport Class 2,3 ) */ proto_tree_add_item(item_tree, hf_cip_sequence_count, tvb, offset, 2, ENC_LITTLE_ENDIAN); /* Call dissector for interface */ tvbuff_t* next_tvb = tvb_new_subset_length(tvb, offset + 2, item_length - 2); p_add_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_REQUEST_INFO, request_info); if (conn_info != NULL) { dissector_handle_t dissector = dissector_get_uint_handle(subdissector_cip_connection_table, conn_info->ClassID); if (dissector) { call_dissector_with_data(dissector, next_tvb, pinfo, dissector_tree, GUINT_TO_POINTER(conn_info->ClassID)); } else { call_dissector_with_data(cip_implicit_handle, next_tvb, pinfo, dissector_tree, GUINT_TO_POINTER(conn_info->ClassID)); } } else { // Default to Message Router format, since this is the most common. Since we don't have the connection // info, at least ensure that the data can at least meet the minimum explicit message size. if (tvb_reported_length(next_tvb) >= 2) { call_dissector(cip_handle, next_tvb, pinfo, dissector_tree); } } p_remove_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_REQUEST_INFO); } // offset - Starts at the sin_family field. static void dissect_item_sockaddr_info(packet_info *pinfo, tvbuff_t* tvb, int offset, proto_tree* item_tree, guint32 item_type_id, gboolean is_fwd_open) { /* Socket address struct - sin_family */ proto_tree_add_item(item_tree, hf_enip_sinfamily, tvb, offset, 2, ENC_BIG_ENDIAN); /* Socket address struct - sin_port */ proto_tree_add_item(item_tree, hf_enip_sinport, tvb, offset + 2, 2, ENC_BIG_ENDIAN); /* Socket address struct - sin_address */ proto_tree_add_item(item_tree, hf_enip_sinaddr, tvb, offset + 4, 4, ENC_BIG_ENDIAN); /* Socket address struct - sin_zero */ proto_tree_add_item(item_tree, hf_enip_sinzero, tvb, offset + 8, 8, ENC_NA); if (is_fwd_open) { enip_request_info_t* request_info = (enip_request_info_t *)p_get_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_REQUEST_INFO); if (request_info != NULL) { if (item_type_id == SOCK_ADR_INFO_OT) { request_info->cip_info->connInfo->O2T.port = tvb_get_ntohs(tvb, offset + 2); alloc_address_tvb(wmem_file_scope(), &request_info->cip_info->connInfo->O2T.ipaddress, AT_IPv4, sizeof(guint32), tvb, offset + 4); } else { request_info->cip_info->connInfo->T2O.port = tvb_get_ntohs(tvb, offset + 2); alloc_address_tvb(wmem_file_scope(), &request_info->cip_info->connInfo->T2O.ipaddress, AT_IPv4, sizeof(guint32), tvb, offset + 4); } } } } // offset - Starts at the Connection ID // Returns: connid_type, conn_info static void dissect_item_sequenced_address(packet_info* pinfo, tvbuff_t* tvb, int offset, proto_tree* item_tree, enum enip_connid_type* connid_type, enip_conn_val_t** conn_info) { guint32 connection_id; proto_tree_add_item_ret_uint(item_tree, hf_enip_cpf_sai_connid, tvb, offset, 4, ENC_LITTLE_ENDIAN, &connection_id); guint32 sequence_num; proto_tree_add_item_ret_uint(item_tree, hf_enip_cpf_sai_seqnum, tvb, offset + 4, 4, ENC_LITTLE_ENDIAN, &sequence_num); *conn_info = enip_get_io_connid(pinfo, connection_id, connid_type); col_add_fstr(pinfo->cinfo, COL_INFO, "Connection: ID=0x%08X, SEQ=%010d", connection_id, sequence_num); if (*connid_type == ECIDT_O2T) { col_append_str(pinfo->cinfo, COL_INFO, ", O->T"); } else if (*connid_type == ECIDT_T2O) { col_append_str(pinfo->cinfo, COL_INFO, ", T->O"); } } // offset - Starts at the Connection ID // Returns: conn_info static void dissect_item_connected_address(packet_info* pinfo, tvbuff_t* tvb, int offset, proto_tree* item_tree, proto_item* enip_item, enip_request_key_t* request_key, enip_conn_val_t** conn_info) { guint32 connection_id; proto_tree_add_item_ret_uint(item_tree, hf_enip_cpf_cai_connid, tvb, offset, 4, ENC_LITTLE_ENDIAN, &connection_id); *conn_info = enip_get_explicit_connid(pinfo, request_key, connection_id); if (request_key) { request_key->type = EPDT_CONNECTED_TRANSPORT; request_key->data.connected_transport.connid = (*conn_info != NULL) ? (*conn_info)->connid : 0; } /* Add Connection ID to Info col and tree */ col_append_fstr(pinfo->cinfo, COL_INFO, ", Connection: ID=0x%08X", connection_id); if (enip_item) { proto_item_append_text(enip_item, ", Connection ID: 0x%08X", connection_id); } } // offset - Starts at Unconn Msg Type // returns - input_request_key // Dissects the following parts of the Unconnected Message over UDP item: Unconn Msg Type, Transaction Number, Status. // The Unconnected Messge field is handled outside of this function. static void dissect_item_unconnected_message_over_udp(packet_info* pinfo, tvbuff_t* tvb, int offset, proto_tree* item_tree, enip_request_key_t** input_request_key) { guint32 ucmm_request; proto_tree_add_item_ret_uint(item_tree, hf_enip_cpf_ucmm_request, tvb, offset, 2, ENC_LITTLE_ENDIAN, &ucmm_request); proto_tree_add_item(item_tree, hf_enip_cpf_ucmm_msg_type, tvb, offset, 2, ENC_LITTLE_ENDIAN); guint32 trans_id; proto_tree_add_item_ret_uint(item_tree, hf_enip_cpf_ucmm_trans_id, tvb, offset + 2, 4, ENC_LITTLE_ENDIAN, &trans_id); proto_tree_add_item(item_tree, hf_enip_cpf_ucmm_status, tvb, offset + 6, 4, ENC_LITTLE_ENDIAN); if (*input_request_key == NULL) { /* * Under normal circumstances request_key should always be NULL here * Duplicating setting up a request (like is done with explicit messaging) */ conversation_t* conversation = find_or_create_conversation(pinfo); /* * Attach that information to the conversation, and add * it to the list of information structures later before dissection. */ enip_request_key_t* request_key = wmem_new0(wmem_packet_scope(), enip_request_key_t); request_key->requesttype = ucmm_request ? ENIP_RESPONSE_PACKET : ENIP_REQUEST_PACKET; request_key->type = EPDT_UNKNOWN; /* UCMM over UDP doesn't have a session handle, so use conversation * pointer as "unique-ish ID" */ request_key->session_handle = GPOINTER_TO_UINT(conversation); request_key->sender_context = trans_id; request_key->conversation = conversation->conv_index; // Return the new request key. *input_request_key = request_key; } } /* Dissect 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, proto_tree *enip_layer_tree, proto_item *enip_item, int offset, guint32 ifacehndl) { proto_item *count_item; proto_tree *count_tree; int item_count; // The following variables are set in one pass of the loop, and read in a second pass. enip_conn_val_t* conn_info = NULL; gboolean FwdOpenRequest = FALSE; gboolean FwdOpenReply = FALSE; enum enip_connid_type connid_type = ECIDT_UNKNOWN; // Normal "Common Packet Format" configurations. See CIP Volume 2, Section 2-6.4. // SendRRData (Unconnected): // Item 1: CDF_NULL // Item 2: UNCONNECTED_MSG // SendUnitData (Connected, Class 3): // Item 1: CONNECTION_BASED // Item 2: CONNECTION_TRANSPORT // Item 3 (Optional): SOCK_ADR_INFO_OT/SOCK_ADR_INFO_TO // Class 0/1 packet: // Item 1: SEQ_ADDRESS // Item 2: CONNECTION_TRANSPORT // Unconnected Message over UDP: // Item 1: UNCONNECTED_MSG_DTLS /* 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 ); offset += 2; while ( item_count-- ) { // Verify that we have the minimum CPF Item size. if (tvb_reported_length_remaining(tvb, offset) < 4) { expert_add_info_format(pinfo, count_item, &ei_mal_cpf_item_minimum_size, "%s, but Remaining Data Length is %d", expert_get_summary(&ei_mal_cpf_item_minimum_size), tvb_reported_length_remaining(tvb, offset)); break; } /* Add item type tree to item count tree*/ guint32 item_type_id; proto_item* type_item = proto_tree_add_item_ret_uint( count_tree, hf_enip_cpf_typeid, tvb, offset, 2, ENC_LITTLE_ENDIAN, &item_type_id ); proto_tree* item_tree = proto_item_add_subtree( type_item, ett_type_tree ); offset += 2; /* Add length field to item type tree */ guint32 item_length; proto_tree_add_item_ret_uint( item_tree, hf_enip_cpf_length, tvb, offset, 2, ENC_LITTLE_ENDIAN, &item_length); offset += 2; // Check if the declared item length is more bytes than we have available. But, don't exit early // so maybe it will be more obvious where the problem is. if ((int)item_length > tvb_reported_length_remaining(tvb, offset)) { expert_add_info_format(pinfo, type_item, &ei_mal_cpf_item_length_mismatch, "%s: Item Length %d, Remaining Data Length: %d", expert_get_summary(&ei_mal_cpf_item_length_mismatch), item_length, tvb_reported_length_remaining(tvb, offset)); } // offset now starts at the data field after the Item Length field. The name of this // field varies depending on the item type. if ( item_length ) { /* Add item data field */ switch ( item_type_id ) { case CONNECTION_BASED: // 1st Item for: Class 3 Connected Messages conn_info = NULL; dissect_item_connected_address(pinfo, tvb, offset, item_tree, enip_item, request_key, &conn_info); break; case UNCONNECTED_MSG_DTLS: // Only item for: Unconnected messages over DTLS { ifacehndl = ENIP_CIP_INTERFACE; dissect_item_unconnected_message_over_udp(pinfo, tvb, offset, item_tree, &request_key); // Skip over the fields already parsed before falling through. offset += 10; item_length -= 10; } /* Intentionally fall through */ case UNCONNECTED_MSG: // 2nd Item for: Unconnected Messages { enip_request_info_t* request_info = NULL; if ( request_key ) { request_key->type = EPDT_UNCONNECTED; request_info = enip_match_request( pinfo, tree, request_key ); } /* Call dissector for interface */ tvbuff_t* next_tvb = tvb_new_subset_length( tvb, offset, item_length); p_add_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_REQUEST_INFO, request_info); if ( tvb_reported_length_remaining(next_tvb, 0) <= 0 || !dissector_try_uint(subdissector_srrd_table, ifacehndl, next_tvb, pinfo, dissector_tree) ) { /* Show the undissected payload */ if ( tvb_reported_length_remaining(tvb, offset) > 0 ) call_data_dissector(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 & CIP_SC_MASK) == SC_CM_FWD_OPEN) || ((request_info->cip_info->bService & CIP_SC_MASK) == 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) { FwdOpenRequest = TRUE; } else { FwdOpenReply = TRUE; } } else { p_remove_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_REQUEST_INFO); } break; } case CONNECTION_TRANSPORT: // 2nd item for: Connected messages (both Class 0/1 and Class 3) // Save the connection info for the conversation filter if (!pinfo->fd->visited && conn_info) { p_add_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_CONNECTION_INFO, conn_info); } if (command == SEND_UNIT_DATA) // Class 2/3 over TCP. { dissect_cip_class23_data(pinfo, tvb, offset, tree, item_tree, item_length, request_key, conn_info, dissector_tree); } else // No command. Send as CPF items only over UDP. { dissect_cip_class01_io(pinfo, tvb, offset, item_length, conn_info, connid_type, dissector_tree); } if (conn_info) { display_connection_information(pinfo, tvb, enip_layer_tree, conn_info, connid_type); } break; case LIST_IDENTITY_RESP: dissect_item_list_identity(pinfo, tvb, offset, item_tree); break; case LIST_ID_SECURITY: dissect_item_cip_security_information(tvb, offset, item_tree); break; case SOCK_ADR_INFO_OT: // Optional 3rd item for: Unconnected Messages case SOCK_ADR_INFO_TO: { gboolean is_fwd_open = (FwdOpenRequest == TRUE) || (FwdOpenReply == TRUE); dissect_item_sockaddr_info(pinfo, tvb, offset, item_tree, item_type_id, is_fwd_open); break; } case SEQ_ADDRESS: // 1st item for: Class 0/1 connected data conn_info = NULL; dissect_item_sequenced_address(pinfo, tvb, offset, item_tree, &connid_type, &conn_info); break; case LIST_SERVICES_RESP: dissect_item_list_services_response(pinfo, tvb, offset, item_tree); break; default: proto_tree_add_item(item_tree, hf_enip_cpf_data, tvb, offset, item_length, ENC_NA); break; } /* end of switch ( item type ) */ } /* end of if ( item length ) */ offset += item_length; } /* end of while ( item count ) */ /* See if there is a CIP connection to establish */ if (FwdOpenReply == TRUE) { enip_request_info_t* request_info = (enip_request_info_t *)p_get_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_REQUEST_INFO); if (request_info != NULL) { enip_open_cip_connection(pinfo, request_info->cip_info->connInfo); } p_remove_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_REQUEST_INFO); } else if (FwdOpenRequest == TRUE) { p_remove_proto_data(wmem_file_scope(), pinfo, proto_enip, ENIP_REQUEST_INFO); } } /* end of dissect_cpf() */ static enum enip_packet_type 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_SECURE_PORT == pinfo->srcport && ENIP_SECURE_PORT != pinfo->destport))) { return ENIP_RESPONSE_PACKET; } else if (((ENIP_ENCAP_PORT != pinfo->srcport && ENIP_ENCAP_PORT == pinfo->destport)) || ((ENIP_SECURE_PORT != pinfo->srcport && ENIP_SECURE_PORT == pinfo->destport))) { return ENIP_REQUEST_PACKET; } else { return ENIP_CANNOT_CLASSIFY; } } static guint get_enip_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_) { 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 int dissect_enip_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { enum enip_packet_type packet_type; guint16 encap_cmd, encap_data_length; const char *pkt_type_str = ""; guint32 ifacehndl; conversation_t *conversation; /* Set up structures needed to add the protocol subtree and manage it */ proto_item *ti = NULL; 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); 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 encapsulation command to info column */ col_append_sep_fstr(pinfo->cinfo, COL_INFO, " | ", "%s (%s)", val_to_str(encap_cmd, encap_cmd_vals, "Unknown Command (0x%04x)"), pkt_type_str ); /* * 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. */ enip_request_key_t request_key = {0}; 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->conv_index; /* 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 */ header_tree = proto_tree_add_subtree( enip_tree, tvb, 0, 24, ett_enip, NULL, "Encapsulation Header"); /* 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 ); if ((encap_cmd == LIST_IDENTITY) && /* Length of 0 probably indicates a request */ ((encap_data_length == 0) || (packet_type == ENIP_REQUEST_PACKET))) { proto_tree_add_item( header_tree, hf_enip_listid_delay, tvb, 12, 2, ENC_LITTLE_ENDIAN ); proto_tree_add_item( header_tree, hf_enip_sendercontex, tvb, 14, 6, ENC_NA ); } else { 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 Command (0x%04x)" ) ); /* ** For some commands we want to add some info to the info column */ switch ( encap_cmd ) { case REGISTER_SESSION: case UNREGISTER_SESSION: col_append_fstr( pinfo->cinfo, COL_INFO, ", Session: 0x%08X", tvb_get_letohl( tvb, 4 ) ); break; } /* Command specific data - create tree */ if ( encap_data_length ) { /* The packet have some command specific data, build a sub tree for it */ csftree = proto_tree_add_subtree( enip_tree, tvb, 24, encap_data_length, ett_command_tree, NULL, "Command Specific Data"); switch ( encap_cmd ) { case NOP: break; case LIST_SERVICES: dissect_cpf( &request_key, encap_cmd, tvb, pinfo, csftree, tree, enip_tree, NULL, 24, 0 ); break; case LIST_IDENTITY: dissect_cpf( &request_key, encap_cmd, tvb, pinfo, csftree, tree, enip_tree, NULL, 24, 0 ); break; case LIST_INTERFACES: dissect_cpf( &request_key, encap_cmd, tvb, pinfo, csftree, tree, enip_tree, NULL, 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, enip_tree, NULL, 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, enip_tree, ti, 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 ) */ col_set_fence(pinfo->cinfo, COL_INFO); return tvb_captured_length(tvb); } /* end of dissect_enip_pdu() */ static int dissect_enip_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) { /* An ENIP packet is at least 4 bytes long. */ if (tvb_captured_length(tvb) < 4) return 0; return dissect_enip_pdu(tvb, pinfo, tree, data); } static int dissect_enip_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) { // TCP connections for EtherNet/IP are typically open for extended periods of time. // This means that mostly likely, for real world traffic, a capture initiated for // EtherNet/IP traffic will start in the middle of a TCP connection. This check // ignores one byte TCP payloads because it is far more likely that a one byte TCP // payload is a TCP keep alive message, than a client actually sending real EtherNet/IP // messages in one byte chunks. if (tvb_captured_length(tvb) < 2) return 0; tcp_dissect_pdus(tvb, pinfo, tree, enip_desegment, 4, get_enip_pdu_len, dissect_enip_pdu, data); return tvb_captured_length(tvb); } /* Code to actually dissect the io packets*/ static int dissect_cipio(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { /* 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, "CIP I/O"); /* 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, enip_tree, NULL, 0, 0 ); return tvb_captured_length(tvb); } static gboolean dissect_dlr(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { proto_item *ti; proto_tree *dlr_tree; 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); /* 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 */ 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_NA ); } 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 */ static const int* bits[] = { &hf_dlr_lnknbrstatus_port1, &hf_dlr_lnknbrstatus_port2, &hf_dlr_lnknbrstatus_reserved, &hf_dlr_lnknbrstatus_frame_type, NULL }; proto_tree_add_bitmask(dlr_tree, tvb, DLR_LNS_SOURCE_PORT, hf_dlr_lnknbrstatus, ett_dlr_lnknbrstatus_flags, bits, ENC_LITTLE_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 if ( dlr_frametype == DLR_FT_ADVERTISE ) { /* Advertise */ proto_tree_add_item( dlr_tree, hf_dlr_advgatewaystate, tvb, DLR_ADV_GATEWAY_STATE, 1, ENC_BIG_ENDIAN ); proto_tree_add_item( dlr_tree, hf_dlr_advgatewayprecedence, tvb, DLR_ADV_GATEWAY_PRECEDENCE, 1, ENC_BIG_ENDIAN ); proto_tree_add_item( dlr_tree, hf_dlr_advadvertiseinterval, tvb, DLR_ADV_ADVERTISE_INTERVAL, 4, ENC_BIG_ENDIAN ); proto_tree_add_item( dlr_tree, hf_dlr_advadvertisetimeout, tvb, DLR_ADV_ADVERTISE_TIMEOUT, 4, ENC_BIG_ENDIAN ); proto_tree_add_item( dlr_tree, hf_dlr_advlearningupdateenable, tvb, DLR_ADV_LEARNING_UPDATE_ENABLE, 1, ENC_BIG_ENDIAN ); proto_tree_add_item( dlr_tree, hf_dlr_advreserved, tvb, DLR_ADV_RESERVED, 19, ENC_NA ); } else if ( dlr_frametype == DLR_FT_FLUSH_TABLES ) { proto_tree_add_item( dlr_tree, hf_dlr_flushlearningupdateenable, tvb, DLR_FLUSH_LEARNING_UPDATE_ENABLE, 1, ENC_BIG_ENDIAN ); proto_tree_add_item( dlr_tree, hf_dlr_flushreserved, tvb, DLR_FLUSH_RESERVED, 29, ENC_NA ); } else if ( dlr_frametype == DLR_FT_LEARNING_UPDATE ) { proto_tree_add_item( dlr_tree, hf_dlr_learnreserved, tvb, DLR_LEARN_RESERVED, 34, ENC_NA ); } else { /* Unknown Frame type */ } return tvb_captured_length(tvb); } /* end of dissect_dlr() */ static int dissect_cip_class1(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, void* data _U_) { enip_conn_val_t conn_info = {0}; conn_info.TransportClass_trigger = 1; cip_io_data_input io_data_input; io_data_input.conn_info = &conn_info; io_data_input.connid_type = ECIDT_UNKNOWN; return dissect_cip_io_generic(tvb, pinfo, tree, &io_data_input); } /* 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 pertinent to the sender", HFILL }}, { &hf_enip_listid_delay, { "Max Response Delay", "enip.listid_delay", FT_UINT16, BASE_DEC, NULL, 0, "Maximum random delay allowed by target", 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_BOOLEAN, 16, 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_BOOLEAN, 16, 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, CF_FUNC(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 }}, { &hf_enip_security_profiles, { "Security Profiles", "enip.security_profiles", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_enip_security_profiles_eip_integrity, { "EtherNet/IP Integrity Profile", "enip.security_profiles.eip_integrity", FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0001, NULL, HFILL }}, { &hf_enip_security_profiles_eip_confidentiality, { "EtherNet/IP Confidentiality Profile", "enip.security_profiles.eip_confidentiality", FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0002, NULL, HFILL }}, { &hf_enip_security_profiles_cip_authorization, { "CIP Authorization Profile", "enip.security_profiles.cip_authorization", FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0004, NULL, HFILL }}, { &hf_enip_security_profiles_cip_integrity, { "CIP Integrity Profile", "enip.security_profiles.cip_integrity", FT_BOOLEAN, 16, TFS(&tfs_supported_not_supported), 0x0008, NULL, HFILL }}, { &hf_enip_security_profiles_reserved, { "Reserved", "enip.security_profiles.reserved", FT_UINT16, BASE_HEX, NULL, 0xFFF0, NULL, HFILL }}, { &hf_enip_cip_security_state, { "CIP Security State", "enip.cip_security_state", FT_UINT8, BASE_DEC, VALS(cip_security_state_vals), 0, NULL, HFILL }}, { &hf_enip_eip_security_state, { "EIP Security State", "enip.eip_security_state", FT_UINT8, BASE_DEC, VALS(eip_security_state_vals), 0, NULL, HFILL }}, { &hf_enip_iana_port_state_flags, { "IANA Port State", "enip.iana_port_state_flags", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_enip_iana_port_state_flags_tcp_44818, { "44818/tcp", "enip.security_profiles.iana_port_state_flags.tcp_44818", FT_BOOLEAN, 8, TFS(&tfs_open_closed), 0x01, NULL, HFILL }}, { &hf_enip_iana_port_state_flags_udp_44818, { "44818/udp", "enip.security_profiles.iana_port_state_flags.udp_44818", FT_BOOLEAN, 8, TFS(&tfs_open_closed), 0x02, NULL, HFILL }}, { &hf_enip_iana_port_state_flags_udp_2222, { "2222/udp", "enip.security_profiles.iana_port_state_flags.udp_2222", FT_BOOLEAN, 8, TFS(&tfs_open_closed), 0x04, NULL, HFILL }}, { &hf_enip_iana_port_state_flags_tcp_2221, { "2221/tcp", "enip.security_profiles.iana_port_state_flags.tcp_2221", FT_BOOLEAN, 8, TFS(&tfs_open_closed), 0x08, NULL, HFILL }}, { &hf_enip_iana_port_state_flags_udp_2221, { "2221/udp", "enip.security_profiles.iana_port_state_flags.udp_2221", FT_BOOLEAN, 8, TFS(&tfs_open_closed), 0x10, NULL, HFILL }}, { &hf_enip_iana_port_state_flags_reserved, { "Reserved", "enip.iana_port_state_flags.reserved", FT_UINT8, BASE_HEX, NULL, 0xE0, NULL, 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_cip_sequence_count, { "CIP Sequence Count", "cip.seq", FT_UINT16, BASE_DEC, NULL, 0, NULL, 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 }}, { &hf_enip_cpf_ucmm_request, { "Request/Response", "enip.cpf.ucmm.request", FT_UINT16, BASE_DEC, VALS(cip_sc_rr), 0x8000, "Common Packet Format: UCMM Request/Response", HFILL }}, { &hf_enip_cpf_ucmm_msg_type, { "Unconn Msg Type", "enip.cpf.ucmm.msg_type", FT_UINT16, BASE_DEC, VALS(unconn_msg_type_vals), 0x7FFF, "Common Packet Format: UCMM Transaction ID", HFILL }}, { &hf_enip_cpf_ucmm_trans_id, { "Transaction ID", "enip.cpf.ucmm.trans_id", FT_UINT32, BASE_HEX, NULL, 0, "Common Packet Format: UCMM Transaction ID", HFILL }}, { &hf_enip_cpf_ucmm_status, { "UCMM Status", "enip.cpf.ucmm.status", FT_UINT32, BASE_HEX, VALS(encap_status_vals), 0, "Common Packet Format: UCMM Status", 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, { "Encapsulation 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, FRAMENUM_TYPE(FT_FRAMENUM_RESPONSE), 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, FRAMENUM_TYPE(FT_FRAMENUM_REQUEST), 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_fwd_open_in, { "Forward Open Request In", "enip.fwd_open_in", FT_FRAMENUM, BASE_NONE, NULL, 0, NULL, HFILL } }, // Generated API data. { &hf_cip_cm_ot_api, { "O->T API", "cip.cm.otapi", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_cip_cm_to_api, { "T->O API", "cip.cm.toapi", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_cip_connection, { "CIP Connection Index", "cip.connection", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_cip_io_data, { "Data", "cipio.data", FT_BYTES, BASE_NONE|BASE_ALLOW_ZERO, NULL, 0x0, NULL, 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, VALS(enip_tcpip_status_interface_config_vals), 0x0000000F, NULL, HFILL }}, { &hf_tcpip_status_mcast_pending, { "MCast Pending", "cip.tcpip.status.mcast_pending", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000010, NULL, HFILL }}, { &hf_tcpip_status_interface_config_pending, { "Interface Configuration Pending", "cip.tcpip.status.interface_config_pending", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000020, NULL, HFILL }}, { &hf_tcpip_status_acd, { "ACD Status", "cip.tcpip.status.acd", FT_UINT32, BASE_DEC, VALS(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_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000001, NULL, HFILL }}, { &hf_tcpip_config_cap_dns, { "DNS Client", "cip.tcpip.config_cap.dns", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000002, NULL, HFILL }}, { &hf_tcpip_config_cap_dhcp, { "DHCP Client", "cip.tcpip.config_cap.dhcp", FT_BOOLEAN, 32, 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_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000008, NULL, HFILL }}, { &hf_tcpip_config_cap_config_settable, { "Configuration Settable", "cip.tcpip.config_cap.config_settable", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000010, NULL, HFILL }}, { &hf_tcpip_config_cap_hardware_config, { "Hardware Configurable", "cip.tcpip.config_cap.hardware_config", FT_BOOLEAN, 32, 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_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000040, NULL, HFILL }}, { &hf_tcpip_config_cap_acd, { "ACD Capable", "cip.tcpip.config_cap.acd", FT_BOOLEAN, 32, 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, VALS(enip_tcpip_config_control_config_vals), 0x0000000F, NULL, HFILL }}, { &hf_tcpip_config_control_dns, { "DNS Enable", "cip.tcpip.config_control.dns", FT_BOOLEAN, 32, 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_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_NETMASK, 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_snn_timestamp, { "Safety Network Number (Timestamp)", "cip.tcpip.snn.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC, NULL, 0, NULL, HFILL } }, { &hf_tcpip_snn_date, { "Safety Network Number (Manual) Date", "cip.tcpip.snn.date", FT_UINT16, BASE_HEX, VALS(cipsafety_ssn_date_vals), 0, NULL, HFILL } }, { &hf_tcpip_snn_time, { "Safety Network Number (Manual) Time", "cip.tcpip.snn.time", FT_UINT32, BASE_HEX, 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, VALS(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_BOOLEAN, BASE_NONE, TFS(&tfs_enabled_disabled), 0, NULL, HFILL }}, { &hf_tcpip_lcd_acd_activity, { "ACD Activity", "cip.tcpip.last_conflict.acd_activity", FT_UINT8, BASE_DEC, VALS(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, 8, TFS(&tfs_enabled_disabled), 0x1, NULL, HFILL }}, { &hf_tcpip_encap_inactivity, { "Encapsulation Inactivity Timeout", "cip.tcpip.encap_inactivity", FT_UINT16, BASE_DEC, NULL, 0x0, 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_BOOLEAN, 32, TFS(&tfs_active_inactive), 0x00000001, NULL, HFILL }}, { &hf_elink_iflags_duplex, { "Duplex", "cip.elink.iflags.duplex", FT_UINT32, BASE_DEC, VALS(enip_elink_duplex_vals), 0x00000002, NULL, HFILL }}, { &hf_elink_iflags_neg_status, { "Negotiation Status", "cip.elink.iflags.neg_status", FT_UINT32, BASE_DEC, VALS(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, VALS(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, VALS(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 Address", "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_BOOLEAN, 16, 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, VALS(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, VALS(enip_elink_interface_type_vals), 0, NULL, HFILL }}, { &hf_elink_interface_state, { "Interface State", "cip.elink.interface_state", FT_UINT8, BASE_DEC, VALS(enip_elink_interface_state_vals), 0, NULL, HFILL }}, { &hf_elink_admin_state, { "Admin State", "cip.elink.admin_state", FT_UINT8, BASE_DEC, VALS(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, 8, 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 }}, { &hf_dlr_network_topology, { "Network Topology", "cip.dlr.network_topology", FT_UINT8, BASE_DEC, VALS(enip_dlr_network_topology_vals), 0, NULL, HFILL }}, { &hf_dlr_network_status, { "Network Status", "cip.dlr.network_status", FT_UINT8, BASE_DEC, VALS(enip_dlr_network_status_vals), 0, NULL, HFILL }}, { &hf_dlr_ring_supervisor_status, { "Ring Supervisor Status", "cip.dlr.ring_supervisor_status", FT_UINT8, BASE_DEC, VALS(enip_dlr_ring_supervisor_status_vals), 0, NULL, HFILL }}, { &hf_dlr_rsc_ring_supervisor_enable, { "Ring Supervisor Enable", "cip.dlr.rscconfig.supervisor_enable", FT_BOOLEAN, 8, TFS(&tfs_true_false), 0, NULL, HFILL }}, { &hf_dlr_rsc_ring_supervisor_precedence, { "Ring Supervisor Precedence", "cip.dlr.rscconfig.supervisor_precedence", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_dlr_rsc_beacon_interval, { "Beacon Interval", "cip.dlr.rscconfig.beacon_interval", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_dlr_rsc_beacon_timeout, { "Beacon Timeout", "cip.dlr.rscconfig.beacon_timeout", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_dlr_rsc_dlr_vlan_id, { "DLR VLAN ID", "cip.dlr.rscconfig.dlr_vlan_id", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_dlr_ring_faults_count, { "Ring Faults Count", "cip.dlr.ring_faults_count", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_dlr_lanp1_dev_ip_addr, { "Device IP Address", "cip.dlr.lanp1.ip_addr", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_dlr_lanp1_dev_physical_address, { "Device Physical Address", "cip.dlr.lanp1.physical_address", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_dlr_lanp2_dev_ip_addr, { "Device IP Address", "cip.dlr.lanp2.ip_addr", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_dlr_lanp2_dev_physical_address, { "Device Physical Address", "cip.dlr.lanp2.physical_address", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_dlr_ring_protocol_participants_count, { "Participants Count", "cip.dlr.participants_count", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_dlr_rppl_dev_ip_addr, { "Device IP Address", "cip.dlr.rppl.ip_addr", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_dlr_rppl_dev_physical_address, { "Device Physical Address", "cip.dlr.rppl.physical_address", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_dlr_asa_supervisor_ip_addr, { "Supervisor IP Address", "cip.dlr.asa.ip_addr", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_dlr_asa_supervisor_physical_address, { "Supervisor Physical Address", "cip.dlr.asa.physical_address", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_dlr_active_supervisor_precedence, { "Active Supervisor Precedence", "cip.dlr.supervisor_precedence", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_dlr_capability_flags, { "Capability Flags", "cip.dlr.capflags", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_dlr_capflags_announce_base_node, { "Announce-based Ring Node", "cip.dlr.capflags.announce_based", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000001, NULL, HFILL }}, { &hf_dlr_capflags_beacon_base_node, { "Beacon-based Ring Node", "cip.dlr.capflags.beacon_based", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000002, NULL, HFILL }}, { &hf_dlr_capflags_reserved1, { "Reserved", "cip.dlr.capflags.reserved1", FT_BOOLEAN, 32, NULL, 0x0000001C, NULL, HFILL }}, { &hf_dlr_capflags_supervisor_capable, { "Supervisor Capable", "cip.dlr.capflags.supervisor_capable", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000020, NULL, HFILL }}, { &hf_dlr_capflags_redundant_gateway_capable, { "Redundant Gateway Capable", "cip.dlr.capflags.redundant_gateway_capable", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000040, NULL, HFILL }}, { &hf_dlr_capflags_flush_frame_capable, { "Flush_Table Frame Capable", "cip.dlr.capflags.flush_frame_capable", FT_BOOLEAN, 32, TFS(&tfs_true_false), 0x00000080, NULL, HFILL }}, { &hf_dlr_capflags_reserved2, { "Reserved", "cip.dlr.capflags.reserved2", FT_BOOLEAN, 32, NULL, 0xFFFFFF00, NULL, HFILL }}, { &hf_dlr_rgc_red_gateway_enable, { "Redundant Gateway Enable", "cip.dlr.rgc.gateway_enable", FT_BOOLEAN, 8, TFS(&tfs_true_false), 0, NULL, HFILL }}, { &hf_dlr_rgc_gateway_precedence, { "Gateway Precedence", "cip.dlr.rgc.gateway_precedence", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_dlr_rgc_advertise_interval, { "Advertise Interval", "cip.dlr.rgc.advertise_interval", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_dlr_rgc_advertise_timeout, { "Advertise Timeout", "cip.dlr.rgc.advertise_timeout", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_dlr_rgc_learning_update_enable, { "Learning Update Enable", "cip.dlr.rgc.learning_update_enable", FT_BOOLEAN, 8, TFS(&tfs_true_false), 0, NULL, HFILL }}, { &hf_dlr_redundant_gateway_status, { "Redundant Gateway Status", "cip.dlr.redundant_gateway_status", FT_UINT8, BASE_DEC, VALS(enip_dlr_redundant_gateway_status_vals), 0, NULL, HFILL }}, { &hf_dlr_aga_ip_addr, { "Active Gateway IP Address", "cip.dlr.aga.ip_addr", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_dlr_aga_physical_address, { "Active Gateway Physical Address", "cip.dlr.aga.physical_address", FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_dlr_active_gateway_precedence, { "Active Gateway Precedence", "cip.dlr.active_gateway_precedence", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_eip_security_state, { "State", "cip.eip_security.state", FT_UINT8, BASE_DEC, VALS(eip_security_state_vals), 0, NULL, HFILL }}, { &hf_eip_security_verify_client_cert, { "Verify Client Certificate", "cip.eip_security.verify_client_cert", FT_BOOLEAN, 8, NULL, 0, NULL, HFILL }}, { &hf_eip_security_send_cert_chain, { "Send Certificate Chain", "cip.eip_security.send_cert_chain", FT_BOOLEAN, 8, NULL, 0, NULL, HFILL }}, { &hf_eip_security_check_expiration, { "Check Expiration", "cip.eip_security.check_expiration", FT_BOOLEAN, 8, NULL, 0, NULL, HFILL }}, { &hf_eip_security_capability_flags, { "Capability Flags", "cip.eip_security.capability_flags", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_eip_security_capflags_secure_renegotiation, { "Secure Renegotiation", "cip.eip_security.capability_flags.secure_renegotiation", FT_BOOLEAN, 32, TFS(&tfs_supported_not_supported), 0x00000001, NULL, HFILL }}, { &hf_eip_security_capflags_reserved, { "Reserved", "cip.eip_security.capability_flags.reserved", FT_UINT32, BASE_HEX, NULL, 0xFFFFFFFE, NULL, HFILL }}, { &hf_eip_security_num_avail_cipher_suites, { "Number of Available Cipher Suites", "cip.eip_security.num_avail_cipher_suites", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_eip_security_avail_cipher_suite, { "Available Cipher Suite", "cip.eip_security.avail_cipher_suite", FT_UINT16, BASE_HEX|BASE_EXT_STRING, &ssl_31_ciphersuite_ext, 0, NULL, HFILL }}, { &hf_eip_security_num_allow_cipher_suites, { "Number of Allowed Cipher Suites", "cip.eip_security.num_allow_cipher_suites", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_eip_security_allow_cipher_suite, { "Allowed Cipher Suite", "cip.eip_security.allow_cipher_suite", FT_UINT16, BASE_HEX|BASE_EXT_STRING, &ssl_31_ciphersuite_ext, 0, NULL, HFILL }}, { &hf_eip_security_num_psk, { "Number of PSKs", "cip.eip_security.num_psk", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_eip_security_psk_identity_size, { "PSK Identity Size", "cip.eip_security.psk_identity_size", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_eip_security_psk_identity, { "PSK Identity", "cip.eip_security.psk_identity", FT_BYTES, BASE_NONE|BASE_ALLOW_ZERO, NULL, 0, NULL, HFILL }}, { &hf_eip_security_psk_size, { "PSK Size", "cip.eip_security.psk_size", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_eip_security_psk, { "PSK", "cip.eip_security.psk", FT_BYTES, BASE_NONE|BASE_ALLOW_ZERO, NULL, 0, NULL, HFILL }}, { &hf_eip_security_num_active_certs, { "Number of Active Certificates", "cip.eip_security.num_active_certs", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_eip_security_num_trusted_auths, { "Number of Trusted Authorities", "cip.eip_security.num_trusted_auths", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_eip_cert_name, { "Name", "cip.eip_cert.name", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_eip_cert_state, { "State", "cip.eip_cert.state", FT_UINT8, BASE_DEC, VALS(eip_cert_state_vals), 0, NULL, HFILL }}, { &hf_eip_cert_device_cert_status, { "Certificate Status", "cip.eip_cert.device_cert.status", FT_UINT8, BASE_DEC, VALS(eip_cert_status_vals), 0, NULL, HFILL }}, { &hf_eip_cert_ca_cert_status, { "Certificate Status", "cip.eip_cert.ca_cert.status", FT_UINT8, BASE_DEC, VALS(eip_cert_status_vals), 0, NULL, HFILL }}, { &hf_eip_cert_capflags_push, { "Push", "cip.eip_cert.capflags.push", FT_BOOLEAN, 32, NULL, 0x00000001, NULL, HFILL }}, { &hf_eip_cert_capflags_reserved, { "Reserved", "cip.eip_cert.capflags.reserved", FT_BOOLEAN, 32, NULL, 0xFFFFFFFE, NULL, HFILL }}, { &hf_eip_cert_capability_flags, { "Capability flags", "cip.eip_cert.capflags", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_eip_cert_num_certs, { "Number of Certificates", "cip.eip_cert.num_certs", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_eip_cert_cert_name, { "Certificate name", "cip.eip_cert.cert_name", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }}, }; /* Setup protocol subtree array */ static gint *ett[] = { &ett_enip, &ett_cip_io_generic, &ett_path, &ett_count_tree, &ett_type_tree, &ett_command_tree, &ett_sockadd, &ett_lsrcf, &ett_tcpip_status, &ett_tcpip_config_cap, &ett_tcpip_config_control, &ett_elink_interface_flags, &ett_elink_icontrol_bits, &ett_dlr_capability_flags, &ett_dlr_lnknbrstatus_flags, &ett_eip_security_capability_flags, &ett_eip_security_psk, &ett_eip_security_active_certs, &ett_eip_security_trusted_auths, &ett_eip_cert_capability_flags, &ett_eip_cert_num_certs, &ett_security_profiles, &ett_iana_port_state_flags, &ett_connection_info, &ett_connection_path_info }; static ei_register_info ei[] = { { &ei_mal_tcpip_status, { "cip.malformed.tcpip.status", PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Status", EXPFILL }}, { &ei_mal_tcpip_config_cap, { "cip.malformed.tcpip.config_cap", PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Configuration Capability", EXPFILL }}, { &ei_mal_tcpip_config_control, { "cip.malformed.tcpip.config_control", PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Configuration Control", EXPFILL }}, { &ei_mal_tcpip_interface_config, { "cip.malformed.tcpip.interface_config", PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Interface Configuration", EXPFILL }}, { &ei_mal_tcpip_ssn, { "cip.malformed.tcpip.ssn", PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Object Safety Network Number", EXPFILL }}, { &ei_mal_tcpip_mcast_config, { "cip.malformed.tcpip.mcast_config", PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Multicast Config", EXPFILL }}, { &ei_mal_tcpip_last_conflict, { "cip.malformed.tcpip.last_conflict", PI_MALFORMED, PI_ERROR, "Malformed TCP/IP Last Conflict Detected", EXPFILL }}, { &ei_mal_elink_interface_flags, { "cip.malformed.elink.interface_flags", PI_MALFORMED, PI_ERROR, "Malformed Ethernet Link Interface Flags", EXPFILL }}, { &ei_mal_elink_physical_address, { "cip.malformed.elink.physical_address", PI_MALFORMED, PI_ERROR, "Malformed Ethernet Link Physical Address", EXPFILL } }, { &ei_mal_elink_interface_counters, { "cip.malformed.elink.interface_counters", PI_MALFORMED, PI_ERROR, "Malformed Ethernet Link Interface Counters", EXPFILL }}, { &ei_mal_elink_media_counters, { "cip.malformed.elink.media_counters", PI_MALFORMED, PI_ERROR, "Malformed Ethernet Link Media Counters", EXPFILL }}, { &ei_mal_elink_interface_control, { "cip.malformed.elink.interface_control", PI_MALFORMED, PI_ERROR, "Malformed Ethernet Link Interface Control", EXPFILL }}, { &ei_mal_dlr_ring_supervisor_config, { "cip.malformed.dlr.ring_supervisor_config", PI_MALFORMED, PI_ERROR, "Malformed DLR Ring Supervisor Config", EXPFILL }}, { &ei_mal_dlr_last_active_node_on_port_1, { "cip.malformed.dlr.last_active_node_on_port_1", PI_MALFORMED, PI_ERROR, "Malformed DLR Last Active Node on Port 1", EXPFILL }}, { &ei_mal_dlr_last_active_node_on_port_2, { "cip.malformed.dlr.last_active_node_on_port_2", PI_MALFORMED, PI_ERROR, "Malformed DLR Last Active Node on Port 2", EXPFILL }}, { &ei_mal_dlr_ring_protocol_participants_list, { "cip.malformed.dlr.ring_protocol_participants_list", PI_MALFORMED, PI_ERROR, "Malformed DLR Ring Protocol Participants List", EXPFILL }}, { &ei_mal_dlr_active_supervisor_address, { "cip.malformed.dlr.active_supervisor_address", PI_MALFORMED, PI_ERROR, "Malformed DLR Active Supervisor Address", EXPFILL }}, { &ei_mal_dlr_capability_flags, { "cip.malformed.dlr.capability_flags", PI_MALFORMED, PI_ERROR, "Malformed DLR Capability Flag", EXPFILL }}, { &ei_mal_dlr_redundant_gateway_config, { "cip.malformed.dlr.redundant_gateway_config", PI_MALFORMED, PI_ERROR, "Malformed DLR Redundant Gateway Config", EXPFILL }}, { &ei_mal_dlr_active_gateway_address, { "cip.malformed.dlr.active_gateway_address", PI_MALFORMED, PI_ERROR, "Malformed DLR Active Gateway Address", EXPFILL }}, { &ei_mal_eip_security_capability_flags, { "cip.malformed.eip_security.capability_flags", PI_MALFORMED, PI_ERROR, "Malformed EIP Security Capability Flags", EXPFILL }}, { &ei_mal_eip_security_avail_cipher_suites, { "cip.malformed.eip_security.avail_cipher_suites", PI_MALFORMED, PI_ERROR, "Malformed EIP Security Available Cipher Suites", EXPFILL }}, { &ei_mal_eip_security_allow_cipher_suites, { "cip.malformed.eip_security.allow_cipher_suites", PI_MALFORMED, PI_ERROR, "Malformed EIP Security Allowed Cipher Suites", EXPFILL }}, { &ei_mal_eip_security_preshared_keys, { "cip.malformed.eip_security.preshared_keys", PI_MALFORMED, PI_ERROR, "Malformed EIP Security Pre-Shared Keys", EXPFILL }}, { &ei_mal_eip_security_active_certs, { "cip.malformed.eip_security.active_certs", PI_MALFORMED, PI_ERROR, "Malformed EIP Security Active Device Certificates", EXPFILL }}, { &ei_mal_eip_security_trusted_auths, { "cip.malformed.eip_security.trusted_auths", PI_MALFORMED, PI_ERROR, "Malformed EIP Security Trusted Authorities", EXPFILL }}, { &ei_mal_eip_cert_capability_flags, { "cip.malformed.eip_cert.capability_flags", PI_MALFORMED, PI_ERROR, "Malformed EIP Certificate Management Capability Flags", EXPFILL }}, { &ei_mal_cpf_item_length_mismatch, { "enip.malformed.cpf_item_length_mismatch", PI_MALFORMED, PI_ERROR, "CPF Item Length Mismatch", EXPFILL } }, { &ei_mal_cpf_item_minimum_size, { "enip.malformed.cpf_item_minimum_size", PI_MALFORMED, PI_ERROR, "CPF Item Minimum Size is 4", EXPFILL } }, }; /* 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, { "Ring Sub-Type", "enip.dlr.ringsubtype", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, /* Ring Protocol Version */ { &hf_dlr_ringprotoversion, { "Ring Protocol Version", "enip.dlr.protversion", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, /* Frame Type */ { &hf_dlr_frametype, { "Frame Type", "enip.dlr.frametype", FT_UINT8, BASE_HEX, VALS(dlr_frame_type_vals), 0, NULL, HFILL } }, /* Source Port */ { &hf_dlr_sourceport, { "Source Port", "enip.dlr.sourceport", FT_UINT8, BASE_HEX, VALS(dlr_source_port_vals), 0, NULL, 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, { "Request Source Port", "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, { "Link/Neighbor Status", "enip.dlr.lnknbrstatus.status", FT_UINT8, BASE_HEX, NULL, 0, "Link_Status/Neighbor_Status Status", HFILL } }, { &hf_dlr_lnknbrstatus_port1, { "Port 1 Active", "enip.dlr.lnknbrstatus.port1", FT_BOOLEAN, 8, TFS(&tfs_true_false), 0x01, NULL, HFILL } }, { &hf_dlr_lnknbrstatus_port2, { "Port 2 Active", "enip.dlr.lnknbrstatus.port2", FT_BOOLEAN, 8, TFS(&tfs_true_false), 0x02, NULL, HFILL } }, { &hf_dlr_lnknbrstatus_reserved, { "Reserved", "enip.dlr.lnknbrstatus.reserved", FT_BOOLEAN, 8, NULL, 0x7C, NULL, HFILL } }, { &hf_dlr_lnknbrstatus_frame_type, { "Link/Neighbor Status Frame Type", "enip.dlr.lnknbrstatus.frame_type", FT_BOOLEAN, 8, TFS(&dlr_lnknbrstatus_frame_type_vals), 0x80, NULL, 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 } }, /* Gateway State */ { &hf_dlr_advgatewaystate, { "Gateway Status", "enip.dlr.advgatewaystate", FT_UINT8, BASE_HEX, VALS(dlr_adv_state_vals), 0, "Gateway State", HFILL } }, /* Gateway Precedence */ { &hf_dlr_advgatewayprecedence, { "Gateway Precedence", "enip.dlr.advgatewayprecedence", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, /* Advertise Interval */ { &hf_dlr_advadvertiseinterval, { "Advertise Interval", "enip.dlr.advadvertiseinterval", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } }, /* Advertise Timeout */ { &hf_dlr_advadvertisetimeout, { "Advertise Interval", "enip.dlr.advadvertisetimeout", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } }, /* Learning Update Enable */ { &hf_dlr_advlearningupdateenable, { "Learning Update Enable", "enip.dlr.advlearningupdateenable", FT_UINT8, BASE_HEX, VALS(dlr_adv_learning_update_vals), 0, "Advertise Learning Update Enable", HFILL } }, /* Advertise Reserved */ { &hf_dlr_advreserved, { "Reserved", "enip.dlr.advreserved", FT_BYTES, BASE_NONE, NULL, 0, "Advertise Reserved", HFILL } }, /* Flush_Tables Learning Update Enable */ { &hf_dlr_flushlearningupdateenable, { "Learning Update Enable", "enip.dlr.flushlearningupdateenable", FT_UINT8, BASE_HEX, VALS(dlr_flush_learning_update_vals), 0, "Flush_Tables Learning Update Enable", HFILL } }, /* Flush Reserved */ { &hf_dlr_flushreserved, { "Reserved", "enip.dlr.flushreserved", FT_BYTES, BASE_NONE, NULL, 0, "Flush_Tables Reserved", HFILL } }, /* Learning_Update Reserved */ { &hf_dlr_learnreserved, { "Reserved", "enip.dlr.learnreserved", FT_BYTES, BASE_NONE, NULL, 0, "Learning_Update Reserved", HFILL } } }; /* Setup protocol subtree array for DLR */ static gint *ettdlr[] = { &ett_dlr }; module_t *enip_module; expert_module_t* expert_enip; /* Register the protocol name and description */ proto_enip = proto_register_protocol("EtherNet/IP (Industrial Protocol)", "ENIP", "enip"); proto_cipio = proto_register_protocol("Common Industrial Protocol, I/O", "CIP I/O", "cipio"); proto_cip_class1 = proto_register_protocol_in_name_only( "Common Industrial Protocol, I/O Class 1", "CIP Class 1", "cipio1", proto_cipio, FT_PROTOCOL); enip_tcp_handle = register_dissector("enip", dissect_enip_tcp, proto_enip); cipio_handle = register_dissector("cipio", dissect_cipio, proto_cipio); cip_class1_handle = register_dissector("cipio_class1", dissect_cip_class1, proto_cip_class1); cip_io_generic_handle = register_dissector("cipgenericio", dissect_cip_io_generic, proto_cipio); /* 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)); expert_enip = expert_register_protocol(proto_enip); expert_register_field_array(expert_enip, ei, array_length(ei)); 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); prefs_register_obsolete_preference(enip_module, "default_io_dissector"); subdissector_srrd_table = register_dissector_table("enip.srrd.iface", "ENIP SendRequestReplyData.Interface Handle", proto_enip, FT_UINT32, BASE_HEX); subdissector_io_table = register_dissector_table("cip.io.iface", "CIP Class 0/1 Interface Handle", proto_cipio, FT_UINT32, BASE_HEX); subdissector_cip_connection_table = register_dissector_table("cip.connection.class", "CIP Class 2/3 Interface Handle", proto_enip, FT_UINT32, BASE_HEX); enip_request_hashtable = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(), enip_request_hash, enip_request_equal); enip_conn_hashtable = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(), enip_conn_hash, enip_conn_equal); 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_conversation_filter("enip", "CIP Connection", cip_connection_conv_valid, cip_connection_conv_filter); subdissector_decode_as_io_table = register_decode_as_next_proto(proto_enip, "CIP I/O", "cip.io", "CIP I/O Payload", enip_prompt); } /* end of proto_register_enip() */ void proto_reg_handoff_enip(void) { dissector_handle_t enip_udp_handle; dissector_handle_t dlr_handle; /* Register for EtherNet/IP, using TCP */ dissector_add_uint_with_preference("tcp.port", ENIP_ENCAP_PORT, enip_tcp_handle); /* Register for EtherNet/IP, using UDP */ enip_udp_handle = create_dissector_handle(dissect_enip_udp, proto_enip); dissector_add_uint_with_preference("udp.port", ENIP_ENCAP_PORT, enip_udp_handle); /* Register for EtherNet/IP IO data (UDP) */ dissector_add_uint_with_preference("udp.port", ENIP_IO_PORT, cipio_handle); /* Register for EtherNet/IP TLS */ ssl_dissector_add(ENIP_SECURE_PORT, enip_tcp_handle); dtls_dissector_add(ENIP_SECURE_PORT, cipio_handle); /* Find ARP dissector for TCP/IP object */ arp_handle = find_dissector_add_dependency("arp", proto_enip); /* I/O data dissectors */ cipsafety_handle = find_dissector("cipsafety"); /* Implicit data dissector */ cip_implicit_handle = find_dissector_add_dependency("cip_implicit", proto_enip); cip_handle = find_dissector_add_dependency("cip", proto_enip); /* Register for EtherNet/IP Device Level Ring protocol */ dlr_handle = create_dissector_handle(dissect_dlr, proto_dlr); dissector_add_uint("ethertype", ETHERTYPE_DLR, dlr_handle); subdissector_class_table = find_dissector_table("cip.class.iface"); dissector_add_for_decode_as("cip.io", cip_class1_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: */