/* packet-ecmp.c * * Copyright 2014, James Lynch , Control Techniques * Copyright 2015, Luke Orehawa , Control Techniques * * Revisions: * - James Lynch 2014-07-22 * - Initial plugin development * - Luke Orehawa 2015-11-26 * - Removed commands not yet in released specification * - All commands implemented are as V0.26 of ECMP Specification * - Modifications of code to meet Wireshark coding style and current APIs * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "config.h" #include #include #include #include "packet-mbtcp.h" #define PROTO_TAG_ECMP "ECMP" void proto_reg_handoff_ecmp(void); void proto_register_ecmp (void); /* Wireshark ID of the ECMP protocol */ static int proto_ecmp = -1; /* Used to set Modbus protocol data */ static int proto_modbus = -1; /* These are the handles of our subdissectors */ static dissector_handle_t modbus_handle = NULL; /*stores the port number for our protocol (ECMP)*/ static const guint16 global_ecmp_port = 6160; /*smallest size of a packet, number of bytes*/ static const gint ecmp_min_packet_size = 6; /* ECMP request codes */ #define ECMP_COMMAND_IDENTIFY 0x00 #define ECMP_COMMAND_INFO 0x01 #define ECMP_COMMAND_INTERROGATE 0x02 #define ECMP_COMMAND_READ 0x10 #define ECMP_COMMAND_READWITHTYPE 0x11 #define ECMP_COMMAND_WRITE 0x12 #define ECMP_COMMAND_OBJECTINFO 0x13 #define ECMP_COMMAND_GETNEXTOBJECTS 0x14 #define ECMP_COMMAND_FILEOPEN 0x20 #define ECMP_COMMAND_FILEREAD 0x21 #define ECMP_COMMAND_FILEWRITE 0x22 #define ECMP_COMMAND_FILECLOSE 0x23 #define ECMP_COMMAND_FILEINFO 0x24 #define ECMP_COMMAND_FILEDELETE 0x25 #define ECMP_COMMAND_FILESTATE 0x26 #define ECMP_COMMAND_FILEPOS 0x27 #define ECMP_COMMAND_FILELIST 0x28 #define ECMP_COMMAND_FILEEXISTS 0x2a #define ECMP_COMMAND_CYCLICLINK 0x31 #define ECMP_COMMAND_PROGRAMCONTROL 0x60 #define ECMP_COMMAND_PROGRAMSTATUS 0x61 #define ECMP_COMMAND_CYCLICFRAME 0x70 #define ECMP_COMMAND_TUNNELFRAME 0x73 #define ECMP_COMMAND_MODBUSPDU 0x74 /* cyclic display formats */ static const guint8 cyclic_display_byte_format = 0; static const guint8 cyclic_display_word_format = 1; static const guint8 cyclic_display_long_format = 2; /* Addressing scheme Structure */ static const value_string address_scheme [] = { { 0, "No Route" }, { 1, "Intercept" }, { 2, "Default Route" }, { 3, "Diagnostics" }, { 4, "Named" }, { 0, NULL } /*other commands to be added */ }; /* Address Structure */ static const value_string diagnostic [] = { { 0, "Status" }, { 1, "Alarm" }, { 2, "Network" }, { 3, "Application" }, { 0, NULL } /*other commands to be added*/ }; /* Command Structure*/ static const value_string command_vals [] = { { 0x00, "Identify"}, { 0x01, "Info"}, { 0x02, "Interrogate"}, { 0x10, "Read"}, { 0x11, "ReadWithType"}, { 0x12, "Write"}, { 0x13, "ObjectInfo"}, { 0x14, "GetNextObjects"}, { 0x20, "FileOpen"}, { 0x21, "FileRead"}, { 0x22, "FileWrite"}, { 0x23, "FileClose"}, { 0x24, "FileInfo"}, { 0x25, "FileDelete"}, { 0x26, "FileState"}, { 0x27, "FilePos"}, { 0x28, "FileList"}, { 0x2A, "FileExists"}, { 0x31, "CyclicSetup"}, { 0x60, "ProgramControl"}, { 0x61, "ProgramStatus"}, { 0x70, "CyclicFrame"}, { 0x73, "TunnelFrame"}, { 0x74, "ModbusPDU"}, { 0, NULL } /*other commands to be added*/ }; /* Command Structure for request/response */ static const value_string type_rr [] = { { 0, "Request" }, { 1, "Response" }, { 0, NULL } /*other commands to be added*/ }; /* Option Code structure*/ static const value_string option_code [] = { { 0, "End of Options"}, { 1, "Dummy" }, { 2, "Process At" }, { 3, "Route to Custom Target"}, { 0, NULL } /* other - "Unknown" */ }; /* Attribute type Structure */ static const value_string attribute [] = { { 0, "Manufacturer Name" }, { 1, "Product Family" }, { 2, "Product Model" }, { 3, "Serial Number" }, { 4, "Order Number" }, { 5, "Date Code" }, { 6, "Device Name" }, { 7, "Version Summary" }, { 8, "Colour Codes" }, { 0, NULL } /* other - Unknown*/ }; /* Status type Structure */ static const value_string status [] = { { 0, "OK (no errors detected in request)" }, { 1, "OK, chunks follow" }, { 2, "Processing Request" }, { -1, "Error - Slave not ready" }, { -2, "Error - Request Too Long" }, { -3, "Error - Chunking Error" }, { 0, NULL } /* other - Unknown*/ }; /* Category (device) structure*/ static const value_string category [] = { { 0, "Drive" }, { 1, "Option Module" }, { 0, NULL } }; /* Cyclic data alignment */ static const value_string cyclic_align [] = { { 0, "8bit" }, { 1, "8bit" }, { 2, "16bit" }, { 4, "32bit" }, { 8, "64bit" }, { 0, NULL } }; /* Cyclic data scheme */ static const value_string cyclic_scheme [] = { { 0, "Standard" }, { 1, "Synchronised" }, { 0, NULL } }; /* Parameter addressing scheme */ static const value_string parameter_address_scheme [] = { { 0, "Standard" }, { 1, "Slot Specific" }, { 3, "Variable" }, { 0, NULL } }; #if 0 static const value_string route_address_scheme [] = { { 1, "Intercept" }, { 2, "DefaultRoute" }, { 0, NULL } }; #endif /* Parameter access status */ static const value_string parameter_access_status [] = { { 0, "OK" }, { 1, "OK - Converted"}, { 2, "OK - Clamped"}, { -1, "ERROR - Address Type"}, { -2, "ERROR - Timeout"}, { -3, "ERROR - Access Denied"}, { -4, "ERROR - Does not exist"}, { -5, "ERROR - Data Type"}, { -6, "ERROR - Failed Read"}, { -7, "ERROR - Failed Write"}, { -8, "ERROR - Not Readable"}, { -9, "ERROR - Not Writeable"}, { -10, "ERROR - Over Range"}, { -11, "ERROR - Request Invalid"}, { -12, "ERROR - Response Too Big"}, { -13, "ERROR - Decimal Place"}, { 0, NULL} }; /* Parameter data types */ static const value_string parameter_data_types [] = { { 0, "Boolean"}, { 1, "INT8"}, { 2, "UINT8"}, { 3, "INT16"}, { 4, "UINT16"}, { 5, "INT32"}, { 6, "UINT32"}, { 7, "INT64"}, { 8, "UINT64"}, { 9, "INT128"}, { 10, "UINT128"}, { 20, "SINGLE"}, { 21, "DOUBLE"}, { 30, "String ID"}, { 31, "String"}, { 0, NULL} }; /* Info types */ static const value_string info_type [] = { { 0, "No Information"}, { 1, "Lowest Numbered Parameter in Menu"}, { 2, "Highest Numbered Parameter in Menu"}, { 3, "Parameter Format"}, { 4, "Minimum Value allowed for Parameter"}, { 5, "Maximum Value allowed for Parameter"}, { 6, "Object Unit Information"}, { 7, "Data Type of Parameter"}, { 0, NULL } }; /* Display formats */ static const value_string display_format [] = { { 0, "Standard format"}, { 1, "Date format (xx,yy,zz)"}, { 2, "Time with seconds format (xx.yy.zz)"}, { 3, "Character format"}, { 4, "Binary format"}, { 5, "IP address format (www.xxx.yyy.zzz)"}, { 6, "MAC address format (AA:BB:CC:DD:EE:FF)"}, { 7, "Version number (ww.xx.yy.zz)"}, { 8, "Slot menu parameter format (x,yy,zzz)"}, { 0, NULL} }; /* Format units */ static const value_string format_units [] = { { 0, "No units"}, { 1, "Custom units"}, { 2, "Millimetres (mm)"}, { 3, "Metres (m)"}, { 4, "User units (UU)"}, { 5, "Revolutions (revs)"}, { 6, "Degrees (')"}, /* { 7, ""}, */ { 8, "General position unit"}, { 9, "Millimetres per second (mm/s)"}, { 10, "User units per millisecond (UU/ms)"}, { 11, "Revolutions per minute (Rpm)"}, { 12, "Hertz (Hz)"}, { 13, "Kilohertz (kHz)"}, { 14, "Megahertz (MHz)"}, { 15, "General speed unit (Hz, rpm, mm/s)"}, { 16, "Closed loop speed unit (rpm, mm/s)"}, { 17, "Seconds per one thousand millimetres per seconds (s/m/s)"}, { 18, "User units per millimetre per second (UU/mm/s)"}, { 19, "Seconds per one thousand revolution per minute (s/1000rpm)"}, { 20, "Seconds per one hundred hertz (s/100Hz)"}, { 21, "General acceleration unit"}, { 22, "Closed loop acceleration unit"}, { 23, "Seconds squared per one thousand millimetres per second (s^2/1000ms/s)"}, { 24, "Seconds squared per user units per millisecond (s^2/UU/ms"}, { 25, "Seconds squared per one thousand revolutions per minute (s^2/1000rpm)"}, { 26, "Seconds squared per one hundred hertz (s^2/100Hz)"}, { 27, "General jerk unit"}, { 28, "Closed loop jerk unit"}, { 29, "Messages per second (Msg/s)"}, { 30, "Hours (Hours)"}, { 31, "Minutes (Mins)"}, { 32, "Seconds (s)"}, { 33, "Milliseconds (ms)"}, { 34, "Microseconds (us)"}, { 35, "Nanoseconds (ns)"}, { 36, "Volts (V)"}, { 37, "Amperes (A)"}, { 38, "Ohms (Ohms)"}, { 39, "Millihenrys (mH)"}, { 40, "Kilowatts (kW)"}, { 41, "Kilo-Volt-Amps-Reactive (kVAr)"}, { 42, "Megawatt hours (MWh)"}, { 43, "Kilowatt hours (kWh)"}, { 44, "Degrees Celcius ('C)"}, { 45, "Reciprocal of degrees celcius (/'C)"}, { 46, "Kilogram-metres squared (kgm^2)"}, { 47, "Newton metres (Nm)"}, { 48, "Newton metres per ampere (Nm/A)"}, { 49, "open-circuit volts per 1000rpm (V/1000rpm)"}, { 50, "Bits (Bits)"}, { 51, "Bytes (Bytes)"}, { 52, "Kilobytes (kB)"}, { 53, "Megabytes (MB)"}, { 54, "Bits per second (Bit/s)"}, { 55, "Baud (Baud)"}, { 56, "Kilobaud (kBaud)"}, { 57, "Megabaud (MBaud)"}, { 58, "Poles (Poles)"}, { 59, "Percent (%)"}, { 60, "Volts per millisecond (V/ms)"}, { 0, NULL} }; /* File status */ static const value_string file_status [] = { { 0, "Processing"}, { 1, "OK"}, { 2, "OK - More Data"}, { 3, "OK - EOF"}, { -1, "ERROR - File Handle"}, { -2, "ERROR - Blocked"}, { -3, "ERROR - Blocking Mode"}, { -4, "ERROR - Not in Progress"}, { -5, "ERROR - Not Found"}, { -6, "ERROR - Read Only"}, { -7, "ERROR - Write Only"}, { -8, "ERROR - Not Created"}, { -9, "ERROR - No Data"}, { -10, "ERROR - Wrong Mode"}, { -11, "ERROR - Too Big"}, { -12, "ERROR - Protected"}, { -13, "ERROR - CRC"}, { -14, "ERROR - Length"}, { -15, "ERROR - Too Many Open"}, { -16, "ERROR - Invalid File"}, { -17, "ERROR - Invalid Request"}, { -18, "ERROR - No Append"}, { -19, "ERROR - Invalid State"}, { -20, "ERROR - Incompatible"}, { -21, "ERROR - Uninitialized"}, { 0, NULL} }; /* File status mode */ static const value_string file_status_mode [] = { { 0, "Information"}, { 1, "Read"}, { 2, "Create"}, { 3, "Append"}, { 4, "New Directory"}, { 0, NULL} }; /* File attributes */ static const value_string file_attributes [] = { { 0, "File Length"}, { 1, "File Integrity"}, { 2, "Calculate CRC32"}, { 3, "File Attributes"}, { 4, "Creation Date and Time"}, { 5, "Modification Date and Time"}, { 0, NULL} }; /* File reference position */ static const value_string file_ref_point [] = { { 0, "SoF - Start of file"}, { 1, "EoF - End of file"}, { 2, "Current - Use current file pointer"}, { 0, NULL} }; static const value_string cyclic_setup_mode [] = { { 0, "Create"}, { 1, "Edit"}, { 2, "Finalise"}, { 3, "Delete"}, { 4, "Exist"}, { 5, "List"}, { 6, "Info"}, { 10, "Set"}, { 11, "Get"}, { 12, "Get mappings"}, { 0, NULL} }; static const value_string cyclic_attributes [] = { { 0, "State"}, { 1, "Rx/Tx"}, { 2, "Synchronised"}, { 3, "MEC Offset"}, { 4, "Sample Period"}, { 5, "MEC Delay"}, { 6, "Data Change"}, { 7, "Rx Timeout Handler"}, { 8, "Rx Data Late Handler"}, { 9, "Transport Address"}, { 10, "Max Mappings"}, { 11, "Number Of Mappings"}, { 12, "Mapping Item"}, { 13, "Saveable"}, { 128, "Max RX Links"}, { 129, "Max TX Links"}, { 130, "Max Mappings Per Link"}, { 131, "Max Sync RX Links"}, { 132, "Max Sync TX Links"}, { 133, "Max Mappings Per Sync Link"}, { 134, "'Process At' Queue Depth"}, { 135, "MEC Period"}, { 0, NULL} }; static const value_string cyclic_setup_link_dir [] = { { 0, "Rx"}, { 1, "Tx"}, { 0, NULL} }; static const value_string cyclic_setup_link_exists [] = { { 0, "Does not exist"}, { 1, "Exists"}, { 0, NULL} }; static const value_string cyclic_link_req_resp [] = { { 0, "Request"}, { 1, "Response"}, { 0, NULL} }; static const value_string additional_scheme_vals [] = { { 0, "None"}, { 1, "Generic"}, { 0, NULL} }; /* Program Control - command codes */ static const value_string command_code_list [] = { { 0, "Stop"}, { 1, "Start"}, { 2, "Reset"}, { 0, NULL } /*other commands to be added*/ }; /* Program Control - sub command codes */ static const value_string sub_command_code_list [] = { { 0, "Default"}, { 1, "User1"}, { 2, "User2"}, { 0, NULL } /*other sub commands to be added*/ }; /* Program Control - status codes */ static const value_string status_list [] = { { 0, "OK"}, { -1, "Error"}, { 0, NULL } /*other status to be added*/ }; /* Program Status - running state codes */ static const value_string running_state_list [] = { { 0, "Stopped"}, { 1, "Running"}, { 2, "Exception"}, { 3, "None (no program found in device)"}, { 0, NULL } /*other status to be added*/ }; /* Interrogate - command support states */ static const value_string Interrogate_support_state [] = { { 0, "Not Supported"}, { 1, "Supported"}, { 0, NULL } /*other status to be added*/ }; /* Interrogate - command / option states */ static const value_string Interrogate_command_option_state [] = { { 0, "Command"}, { 1, "Option"}, { 0, NULL } /*other status to be added*/ }; static const value_string item_type_vals[] = { { 0, "File"}, { 1, "Directory"}, { 0, NULL } }; static const value_string file_integrity_vals[] = { { 0, "Error"}, { 1, "OK"}, { 0, NULL } }; #if 0 static const true_false_string tfs_not_expected_expected = { "Odd", "Even" }; #endif /* The following hf_* variables are used to hold the Wireshark IDs of * our header fields; they are filled out when we call * proto_register_field_array() in proto_register_ecmp() */ static gint hf_ecmp_command = -1; static gint hf_ecmp_destination_address = -1; static gint hf_ecmp_source_address = -1; static gint hf_ecmp_diagnostic = -1; static gint hf_ecmp_type_rr = -1; static gint hf_ecmp_chunking = -1; static gint hf_ecmp_max_response_size = -1; static gint hf_ecmp_category = -1; static gint hf_ecmp_option = -1; static gint hf_ecmp_attribute = -1; static gint hf_ecmp_no_of_attributes = -1; static gint hf_ecmp_chunk_id = -1; static gint hf_ecmp_transaction_id = -1; static gint hf_ecmp_status = -1; static gint hf_ecmp_drive_type = -1; static gint hf_ecmp_drive_derivative = -1; static gint hf_ecmp_drive_factory_fit_category_id = -1; static gint hf_ecmp_category_id = -1; static gint hf_ecmp_attribute_string = -1; static gint hf_ecmp_file_name = -1; static gint hf_ecmp_info_command = -1; static gint hf_ecmp_directory = -1; static gint hf_ecmp_names_scheme = -1; static gint hf_ecmp_variable_name = -1; static gint hf_ecmp_unit_id_string = -1; static gint hf_ecmp_ecmp_string = -1; static gint hf_ecmp_process_time = -1; static gint hf_ecmp_cyclic_frame_time = -1; static gint hf_ecmp_grandmaster = -1; static gint hf_ecmp_data = -1; static gint hf_ecmp_response_data = -1; static gint hf_ecmp_cyclic_link_num = -1; static gint hf_ecmp_cyclic_align = -1; static gint hf_ecmp_cyclic_scheme = -1; static gint hf_ecmp_cyclic_link_number_display = -1; /* Cyclic setup */ static gint hf_ecmp_cyclic_setup_mode = -1; static gint hf_ecmp_cyclic_setup_linkno = -1; static gint hf_ecmp_cyclic_setup_dir = -1; static gint hf_ecmp_cyclic_setup_attrib_count = -1; static gint hf_ecmp_cyclic_setup_rsp_status = -1; static gint hf_ecmp_cyclic_setup_rsp_err_idx = -1; static gint hf_ecmp_cyclic_setup_attrib = -1; static gint hf_ecmp_cyclic_setup_link_exists = -1; static gint hf_ecmp_cyclic_link_req_resp = -1; /*for info command */ static gint hf_ecmp_buffer_size = -1; static gint hf_ecmp_max_response = -1; static gint hf_ecmp_max_handle = -1; static gint hf_ecmp_info_address = -1; /*for parameter access commands*/ static gint hf_ecmp_parameter_address = -1; static gint hf_ecmp_number_of_parameter_definitions = -1; static gint hf_ecmp_number_of_parameter_responses = -1; static gint hf_ecmp_parameter_status = -1; static gint hf_ecmp_data_type = -1; static gint hf_ecmp_info_type = -1; /* for file access commands */ static gint hf_ecmp_file_status = -1; static gint hf_ecmp_file_handle = -1; static gint hf_ecmp_file_attributes = -1; static gint hf_ecmp_file_ref_point = -1; /* for tunnel frame command */ #define TUNNEL_START_FLAG 0x01 #define TUNNEL_END_FLAG 0x02 #define TUNNEL_CHECK_OUTPUT_FLAG 0x04 static gint hf_ecmp_tunnel_control = -1; static gint hf_ecmp_tunnel_start_flag = -1; static gint hf_ecmp_tunnel_end_flag = -1; static gint hf_ecmp_tunnel_check_output_flag = -1; static gint hf_ecmp_tunnel_size = -1; /* Generated from convert_proto_tree_add_text.pl */ static int hf_ecmp_physical_address = -1; static int hf_ecmp_logical_address = -1; static int hf_ecmp_primary_colour = -1; static int hf_ecmp_secondary_colour = -1; static int hf_ecmp_number_of_subsequent_object_requests = -1; static int hf_ecmp_number_of_decimal_places = -1; static int hf_ecmp_no_information_available = -1; static int hf_ecmp_param_format_bit_default_unipolar = -1; static int hf_ecmp_param_format_write_allowed = -1; static int hf_ecmp_param_format_read_not_allowed = -1; static int hf_ecmp_param_format_protected_from_destinations = -1; static int hf_ecmp_param_format_parameter_not_visible = -1; static int hf_ecmp_param_format_not_clonable = -1; static int hf_ecmp_param_format_voltage_or_current_rating_dependant = -1; static int hf_ecmp_param_format_parameter_has_no_default = -1; static int hf_ecmp_param_format_number_of_decimal_places = -1; static int hf_ecmp_param_format_variable_maximum_and_minimum = -1; static int hf_ecmp_param_format_string_parameter = -1; static int hf_ecmp_param_format_desitination_set_up_parameter = -1; static int hf_ecmp_param_format_filtered_when_displayed = -1; static int hf_ecmp_param_format_pseudo_read_only = -1; static int hf_ecmp_param_format_display_format = -1; static int hf_ecmp_param_format_floating_point_value = -1; static int hf_ecmp_param_format_units = -1; static int hf_ecmp_string_id = -1; static int hf_ecmp_address_scheme_menu = -1; static int hf_ecmp_address_scheme_parameter = -1; static int hf_ecmp_address_scheme_slot = -1; static int hf_ecmp_address_scheme_null_byte_size = -1; static int hf_ecmp_display_unit_id = -1; static int hf_ecmp_data_boolean = -1; static int hf_ecmp_data_int8 = -1; static int hf_ecmp_data_uint8 = -1; static int hf_ecmp_data_int16 = -1; static int hf_ecmp_data_uint16 = -1; static int hf_ecmp_data_int32 = -1; static int hf_ecmp_data_uint32 = -1; static int hf_ecmp_data_int64 = -1; static int hf_ecmp_data_uint64 = -1; static int hf_ecmp_data_float = -1; static int hf_ecmp_data_double = -1; static int hf_ecmp_access_mode = -1; static int hf_ecmp_open_in_non_blocking_mode = -1; static int hf_ecmp_open_file_relative_to_specified_directory_handle = -1; static int hf_ecmp_file_access_mode = -1; static int hf_ecmp_additional_scheme = -1; static int hf_ecmp_scheme_data_length = -1; static int hf_ecmp_number_of_requested_bytes = -1; static int hf_ecmp_number_of_bytes_transferred = -1; static int hf_ecmp_crc = -1; static int hf_ecmp_ref_offset = -1; static int hf_ecmp_number_of_files_to_list = -1; static int hf_ecmp_file_hash = -1; static int hf_ecmp_item_type = -1; static int hf_ecmp_file_integrity = -1; static int hf_ecmp_display_attr_read_only = -1; static int hf_ecmp_display_attr_hidden = -1; static int hf_ecmp_display_attr_system = -1; static int hf_ecmp_display_attr_volume_label = -1; static int hf_ecmp_display_attr_subdirectory = -1; static int hf_ecmp_display_attr_archive = -1; static int hf_ecmp_display_creation = -1; static int hf_ecmp_display_modification = -1; static int hf_ecmp_interrogate_item_type = -1; static int hf_ecmp_interrogate_count = -1; static int hf_ecmp_modbus_pdu_size = -1; /* static int hf_ecmp_destination_scheme = -1; */ static int hf_ecmp_program_control_target = -1; static int hf_ecmp_program_control_command = -1; static int hf_ecmp_program_control_sub_command = -1; static int hf_ecmp_program_control_status = -1; static int hf_ecmp_program_status_target = -1; static int hf_ecmp_program_status_status = -1; static int hf_ecmp_program_status_additional_items = -1; static int hf_ecmp_cyclic_setup_max_mappings = -1; static int hf_ecmp_cyclic_setup_start_offset = -1; static int hf_ecmp_cyclic_setup_tx_count = -1; static int hf_ecmp_cyclic_setup_rx_count = -1; static int hf_ecmp_udp_alignment = -1; static int hf_ecmp_udp_scheme = -1; static int hf_ecmp_cyclic_data = -1; static int hf_ecmp_version_summary = -1; static int hf_ecmp_min_param_menu = -1; static int hf_ecmp_max_param_menu = -1; static int hf_ecmp_file_length = -1; static int hf_ecmp_mec_offset = -1; static int hf_ecmp_sample_period = -1; static int hf_ecmp_rx_timeout = -1; static int hf_ecmp_rx_action = -1; static int hf_ecmp_rx_event_destination = -1; static int hf_ecmp_rx_event = -1; static int hf_ecmp_rx_late_handler_action = -1; static int hf_ecmp_rx_late_handler_event_destination = -1; static int hf_ecmp_rx_late_handler_event = -1; static int hf_ecmp_transport_addr_scheme = -1; static int hf_ecmp_transport_addr = -1; static int hf_ecmp_mapping_item_offset = -1; static int hf_ecmp_mapping_item_scheme = -1; static int hf_ecmp_setup_attribute = -1; static int hf_ecmp_mec_period = -1; static int hf_ecmp_interrogate_command = -1; /************************************************************/ /* These are the ids of the subtrees that we may be creating */ static gint ett_ecmp = -1; static gint ett_ecmp_address= -1; static gint ett_ecmp_response_size = -1; static gint ett_ecmp_command = -1; static gint ett_ecmp_category = -1; static gint ett_ecmp_option = -1; static gint ett_ecmp_option_data = -1; static gint ett_ecmp_attribute = -1; static gint ett_ecmp_attribute_data = -1; static gint ett_ecmp_cyclic_scheme = -1; static gint ett_ecmp_info_type = -1; static gint ett_ecmp_info_count = -1; static gint ett_ecmp_interrogate_message = -1; static gint ett_ecmp_param_address = -1; static gint ett_ecmp_access_mode = -1; static gint ett_ecmp_access_file = -1; static gint ett_ecmp_file_read = -1; static gint ett_ecmp_file_write = -1; static gint ett_ecmp_file_info = -1; static gint ett_ecmp_file_info_att = -1; static gint ett_ecmp_file_position = -1; static gint ett_ecmp_file_list_no = -1; static gint ett_ecmp_file_list = -1; static gint ett_ecmp_tunnel_3s_goodframe = -1; static gint ett_ecmp_tunnel_3s_size = -1; static gint ett_ecmp_tunnel_3s_service = -1; static gint ett_cyclic_setup_attribs = -1; static gint ett_cyclic_setup_attrib_item = -1; static gint ett_cyclic_setup_transport_addr = -1; static gint ett_ecmp_cyclic_data_32_bit_display = -1; static gint ett_ecmp_cyclic_data_16_bit_display = -1; static gint ett_ecmp_cyclic_data_8_bit_display = -1; static gint ett_ecmp_modbus_pdu_message = -1; static gint ett_ecmp_program_control_message = -1; static gint ett_ecmp_program_status_message = -1; static expert_field ei_ecmp_unknown_command = EI_INIT; static expert_field ei_ecmp_color = EI_INIT; static expert_field ei_ecmp_option = EI_INIT; static expert_field ei_ecmp_item_type = EI_INIT; static expert_field ei_ecmp_options_not_implemented = EI_INIT; static expert_field ei_ecmp_info_type = EI_INIT; static expert_field ei_ecmp_attribute_type = EI_INIT; static expert_field ei_ecmp_parameter_addressing_scheme = EI_INIT; static expert_field ei_ecmp_data_type = EI_INIT; /*--------------------------------------------------------------------*/ /* General Commands and Framing Dissectors */ /*--------------------------------------------------------------------*/ /*a function to add the initial information about the transport layer (the first bits)*/ static int add_transport_layer_frame(int offset, tvbuff_t *tvb, proto_tree* ecmp_tree, int addr_type) { proto_item *ecmp_address_item = NULL; proto_tree *ecmp_address_tree = NULL; guint8 byte_test; ecmp_address_item = proto_tree_add_item(ecmp_tree, addr_type, tvb, offset, 1, ENC_BIG_ENDIAN); byte_test = tvb_get_guint8(tvb, offset); if ((byte_test != 0) && (byte_test != 1)) { /* tree to display the data in the address*/ ecmp_address_tree = proto_item_add_subtree(ecmp_address_item, ett_ecmp_address); switch (byte_test) { case 2: /* default route scheme*/ offset++; /* displays the values of the addresses*/ proto_tree_add_item(ecmp_address_tree, hf_ecmp_physical_address, tvb, offset, 1, ENC_NA); proto_tree_add_item(ecmp_address_tree, hf_ecmp_logical_address, tvb, offset, 1, ENC_NA); break; case 3:/* diagnostic scheme*/ proto_tree_add_item(ecmp_address_tree, hf_ecmp_diagnostic, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; break; case 4: /* Names scheme */ /* Calls a function to display the UTF-8 string data*/ proto_tree_add_item(ecmp_address_tree, hf_ecmp_names_scheme, tvb, offset, 2, ENC_BIG_ENDIAN|ENC_ASCII); offset += (tvb_get_ntohs(tvb, offset) + 2); break; } } offset++; return offset; } /* a function to display option codes */ static int add_option_codes(int offset, packet_info *pinfo, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_item* ecmp_option_number_item = NULL; proto_item* ecmp_option_item; proto_tree* ecmp_option_tree; proto_tree* ecmp_option_data_tree = NULL; guint8 option_code_display = 0; guint16 count = 0; /* number of times the loop iterates*/ int start_offset; gboolean more_options = TRUE; offset++; start_offset = offset; ecmp_option_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 1, ett_ecmp_option, &ecmp_option_number_item, "Options" ); /* Loop to display all options */ while(more_options) /* loops until option code is 0*/ { option_code_display = tvb_get_guint8(tvb, offset); ecmp_option_item = proto_tree_add_item(ecmp_option_tree, hf_ecmp_option, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; switch(option_code_display) { case 0:/* end of options*/ proto_item_append_text(ecmp_option_number_item, ": %d", count); proto_item_set_len(ecmp_option_number_item, offset-start_offset); more_options = FALSE; break; case 1:/* dummy - 0 bytes of data */ break; case 2:/* process at - 8 bytes of data */ ecmp_option_data_tree = proto_item_add_subtree(ecmp_option_item, ett_ecmp_option_data); proto_tree_add_item(ecmp_option_data_tree, hf_ecmp_process_time, tvb, offset, 8, ENC_BIG_ENDIAN); offset += 8; break; default: /* Option that is not recognised*/ proto_item_append_text(ecmp_option_number_item, "%d ", count); expert_add_info(pinfo, ecmp_option_number_item, &ei_ecmp_option); break; } count++; } return offset; } /* a function to display attributes */ static void add_attributes(packet_info* pinfo, int offset, tvbuff_t *tvb, proto_tree* ecmp_tree, gboolean request) { proto_item* ecmp_attribute_number_item = NULL; proto_item* ecmp_attribute_item = NULL, *color_item; proto_tree* ecmp_attribute_tree = NULL; proto_tree* ecmp_attribute_data_tree = NULL; guint8 no_of_attributes = 0; guint8 a = 0; /*values used for looping*/ guint8 b = 0; guint8 c = 0; guint8 check = 0; guint16 att_length = 0; guint32 color; gchar* pStr = NULL; /*char array for version string output*/ int start_offset = offset; /*display the number of attributes*/ ecmp_attribute_number_item = proto_tree_add_item(ecmp_tree, hf_ecmp_no_of_attributes, tvb, offset, 1, ENC_BIG_ENDIAN); ecmp_attribute_tree = proto_item_add_subtree(ecmp_attribute_number_item, ett_ecmp_attribute); no_of_attributes = tvb_get_guint8(tvb, offset); offset++; for (a = 0; a < no_of_attributes; a++, offset++) { /*attribute header*/ ecmp_attribute_item = proto_tree_add_item(ecmp_attribute_tree, hf_ecmp_attribute, tvb, offset, 1, ENC_BIG_ENDIAN ); ecmp_attribute_data_tree = proto_item_add_subtree(ecmp_attribute_item, ett_ecmp_attribute_data); if (!request) { /*code for dissecting the colour codes attribute*/ switch(tvb_get_guint8(tvb, offset)) { case 8: offset+= 1; /*get length of attribute for error checking*/ offset+= 2; /*output primary colour codes- the two bytes representing each colour are output as integers*/ color = tvb_get_ntohl(tvb, offset); color_item = proto_tree_add_uint_format_value(ecmp_attribute_data_tree, hf_ecmp_primary_colour, tvb, offset, 4, color, "(red) %d (green) %d (blue) %d", tvb_get_guint8(tvb, offset+1), tvb_get_guint8(tvb, offset+2), tvb_get_guint8(tvb, offset+3)); if ((color & 0xFF000000) != 0) { /*error check for correct colour code format */ expert_add_info(pinfo, color_item, &ei_ecmp_color); } offset+= 4; /*output secondary colour codes- the two bytes representing each colour are output as integers*/ color = tvb_get_ntohl(tvb, offset); color_item = proto_tree_add_uint_format_value(ecmp_attribute_data_tree, hf_ecmp_secondary_colour, tvb, offset, 4, color, "(red) %d (green) %d (blue) %d", tvb_get_guint8(tvb, offset+1), tvb_get_guint8(tvb, offset+2), tvb_get_guint8(tvb, offset+3)); if ((color & 0xFF000000) != 0) { /*error check for correct colour code format */ expert_add_info(pinfo, color_item, &ei_ecmp_color); } offset+= 4; break; /*code for dissecting the version summary attribute*/ case 7: offset++; att_length = tvb_get_ntohs(tvb, offset); pStr = (gchar *)wmem_alloc(wmem_packet_scope(), att_length+1); /* 100 char buffer */ b = 0; offset+= 2; if (pStr != NULL) { for (c = 0; c < att_length; c++, offset++) { check = tvb_get_guint8(tvb,offset); if((check == 'V')||(check == '#')||(check == '@')) { pStr[b] = ' '; b++; } else if(tvb_get_guint8(tvb,offset)== (';')) { pStr[b] = 0; /*display version summary parameter, e.g 'FW', 'BL', 'HW'*/ proto_tree_add_string(ecmp_attribute_data_tree, hf_ecmp_version_summary, tvb, offset-b, b, pStr); b = 0; } else { pStr[b] = (gchar)tvb_get_guint8(tvb,offset); b++; } } pStr[b] = 0; /*display last version summary parameter, e.g 'FW', 'BL', 'HW' as no deliminator to check for, just prints out rest of version string*/ proto_tree_add_string(ecmp_attribute_data_tree, hf_ecmp_version_summary, tvb, offset-b, b, pStr); offset-= 1; } break; default: /* displays the data inside the attribute*/ proto_tree_add_item(ecmp_attribute_data_tree, hf_ecmp_attribute_string, tvb, offset+1, 2, ENC_BIG_ENDIAN|ENC_ASCII); offset += (tvb_get_ntohs(tvb, offset+1) + 2); break; } } } proto_item_set_len(ecmp_attribute_number_item, offset-start_offset); } /* a function to display the category codes */ static int add_category_codes(int offset, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_item *ecmp_category_item = NULL; proto_tree *ecmp_category_tree = NULL; guint8 category_size = 0; int start_offset = offset; guint8 category_value = tvb_get_guint8(tvb, offset); /* displays the category and creates a tree to display further data*/ ecmp_category_item = proto_tree_add_item(ecmp_tree, hf_ecmp_category, tvb, offset, 1, ENC_BIG_ENDIAN); ecmp_category_tree = proto_item_add_subtree(ecmp_category_item, ett_ecmp_category); offset++; category_size = tvb_get_guint8(tvb, offset); offset++; if(category_size==2 && category_value == 1) { /*display "option module" and its ID*/ proto_tree_add_item(ecmp_category_tree, hf_ecmp_category_id, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=category_size; } else if(category_size == 4 && category_value == 0) { /*display "drive" and its data (product type, drive derivative and ID*/ proto_tree_add_item(ecmp_category_tree, hf_ecmp_drive_type, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ecmp_category_tree, hf_ecmp_drive_derivative, tvb, offset+1, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ecmp_category_tree, hf_ecmp_drive_factory_fit_category_id, tvb, offset+2, 2, ENC_BIG_ENDIAN); offset+=category_size; } else { /* Display unknown and its hex data */ proto_tree_add_item(ecmp_category_tree, hf_ecmp_data, tvb, offset, category_size, ENC_NA); offset += category_size; } proto_item_set_len(ecmp_category_item, offset-start_offset); return offset; } /* a function to display response size data */ static int get_response_size(int offset, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_item* ecmp_max_response_item = NULL; proto_tree* ecmp_response_size_tree = NULL; guint8 chunks = 0; guint16 max_response_size = 0; /*get values for number of chunks and max response size*/ chunks = tvb_get_guint8(tvb, offset)>>4&0x0F; max_response_size = tvb_get_ntohs(tvb, offset) & 0x0FFF; /*display response subtree */ ecmp_response_size_tree = proto_tree_add_subtree_format(ecmp_tree, tvb, offset, 2, ett_ecmp_response_size, &ecmp_max_response_item, "Response Size: %X, %X (%d)", chunks, max_response_size, max_response_size); /*display chunks and max response size in response subtree*/ proto_tree_add_item(ecmp_response_size_tree, hf_ecmp_chunking, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_uint_format_value(ecmp_response_size_tree, hf_ecmp_max_response_size, tvb, offset, 2, max_response_size, "%d bytes", max_response_size); offset+= 2; return offset; } /* a function to display the command code and type (request/response) */ static int add_command_codes(packet_info* pinfo, int offset, tvbuff_t *tvb, proto_tree* ecmp_tree, guint8 transaction_id_value, guint8* command_value) { proto_tree *ecmp_command_tree; const gchar* command_str; guint8 command; command = tvb_get_guint8(tvb, offset); *command_value = command & 0x7F; command_str = val_to_str(*command_value, command_vals, "Unknown Type (0x%02x)"); /*display command subtree*/ ecmp_command_tree = proto_tree_add_subtree_format(ecmp_tree, tvb, offset, 1, ett_ecmp_command, NULL, "Request Response Code: %s", command_str); /* Displays the command */ proto_tree_add_item(ecmp_command_tree, hf_ecmp_command, tvb, offset, 1, ENC_BIG_ENDIAN); /* Displays the type (request/response) */ proto_tree_add_item(ecmp_command_tree, hf_ecmp_type_rr, tvb, offset, 1, ENC_BIG_ENDIAN); /* Information displayed in the Info column*/ col_add_fstr(pinfo->cinfo, COL_INFO, "%s, %s. Transaction ID: %d", command_str, val_to_str(((command & 0x80) >> 7), type_rr, "Unknown Type (0x%02x)"), transaction_id_value); return offset; } /* a function to add a cyclic frame query */ static int add_cyclic_frame_query(int offset, tvbuff_t *tvb, proto_tree* ecmp_tree ) { /* display the cyclic link number */ proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_link_num, tvb, offset++, 1, ENC_BIG_ENDIAN); return offset; } /* a function to add a cyclic frame */ static int add_cyclic_frame(int offset, tvbuff_t *tvb, proto_tree* ecmp_tree ) { guint8 scheme; proto_item *ecmp_scheme_item = NULL; proto_tree *ecmp_scheme_tree = NULL; proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_link_num, tvb, offset++, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_align, tvb, offset++, 1, ENC_BIG_ENDIAN); /* get scheme */ scheme = tvb_get_guint8(tvb, offset); ecmp_scheme_item = proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_scheme, tvb, offset++, 1, ENC_BIG_ENDIAN); if (scheme == 1) { /* Create a new sub tree spawning off the scheme byte for the synchronisation scheme data to be placed. */ ecmp_scheme_tree = proto_item_add_subtree(ecmp_scheme_item, ett_ecmp_cyclic_scheme); /* grandmaster */ proto_tree_add_item( ecmp_scheme_tree, hf_ecmp_grandmaster, tvb, offset, 8, ENC_BIG_ENDIAN); offset += 8; proto_tree_add_item(ecmp_scheme_tree, hf_ecmp_cyclic_frame_time, tvb, offset, 8, ENC_BIG_ENDIAN); offset += 8; } proto_tree_add_item(ecmp_tree, hf_ecmp_data, tvb, offset, -1, ENC_NA); return tvb_reported_length(tvb); } /* a function to display cyclic tvb data in byte (8-bit), word (16-bit), and long (32-bit) unsigned formats */ static int display_raw_cyclic_data(guint8 display, int offset, guint16 buffer_size, tvbuff_t *tvb, proto_tree* ecmp_current_tree ) { /****************************************************************************************/ /* */ /* display_raw_cyclic_data - display the cyclic data in various formats. */ /* */ /* Parameters: display = selects desired display format. */ /* 0 = BYTE_FORMAT (8-bits 1F 20 37 BC ... */ /* 1 = WORD_FORMAT (16-bits 1F20 37BC 77F1 ... */ /* 2 = LONG_FORMAT (32-bits 1F2037BC 0013F5CD ... */ /* */ /* offset = offset within tvb buffer where this data starts. */ /* */ /* buffer_size = number of bytes to be converted and displayed. */ /* */ /* tvb = buffer structure within Wireshark holding this frame. */ /* */ /* ecmp_current_tree = the tree where the data is to be displayed. */ /* */ /* */ /* Notes: we only display so many elements on a line (before continuing on next line) */ /* */ /* 16 elements per line for byte (8-bit) and word (16-bit) */ /* 8 elements per line for long (32-bit) */ /* */ /* Programmer: Jim Lynch */ /****************************************************************************************/ /* bail out if the buffer size is zero */ if (buffer_size == 0) { proto_tree_add_bytes_format_value(ecmp_current_tree, hf_ecmp_cyclic_data, tvb, offset-1, 0, NULL, "No data"); } else { /* define some variables */ gchar* pdata = NULL; /* pointer to array that stores the formatted data string */ guint16 idx = 0; /* counts through formatted string array */ guint8 value8 = 0; /* placeholder for extracted 8-bit data */ guint16 value16 = 0; /* placeholder for extracted 16-bit data */ guint32 value32 = 0; /* placeholder for extracted 32-bit data */ guint16 num_elements_total = 0; /* contains total number of elements (byte/word/long) to be processed */ const guint16 num_byte_elements_per_line = 16; /* number of byte (8-bit) elements per line e.g. "1B " (3 chars per element) */ const guint16 num_word_elements_per_line = 16; /* number of word (16-bit) elements per line e.g. "A81B " (5 chars per element) */ const guint16 num_long_elements_per_line = 8; /* number of long (32-bit) elements per line e.g. "01F4A81B " (9 chars per element) */ guint16 num_elements_per_line = 8; /* counts the current number of elements per line */ guint16 num_elements = 0; /* counts the number of elements in the format string */ guint16 format_string_size = 0; /* size of dynamic array to hold the formatted string */ guint16 a = 0; /* value used for looping */ int start_offset, line_offset; /* calculate format string array size and other stuff */ /* */ /* Note: format string does require a nul-terminator (the + 1 in the equations) */ /* */ /* display = 0: (byte format "1D 24 3F ... A3 " */ /* format_string_size = (num_byte_elements_per_line * 3) + 1 */ /* */ /* display = 1: (word format "1D24 3F84 120B ... 1FA3 " */ /* format_string_size = (num_word_elements_per_line * 5) + 1 */ /* */ /* display = 2: (byte format "1D243F84 9BC08F20 ... 28BB1FA3 " */ /* format_string_size = (num_long_elements_per_line * 9) + 1 */ /* */ if (display == cyclic_display_byte_format) { format_string_size = (num_byte_elements_per_line * 3) + 1; /* format_string_size = 49 */ num_elements_per_line = num_byte_elements_per_line; /* num_elements_per_line = 16 */ num_elements_total = buffer_size; } else if (display == cyclic_display_word_format) { format_string_size = (num_word_elements_per_line * 5) + 1; /* format_string_size = 81 */ num_elements_per_line = num_word_elements_per_line; /* num_elements_per_line = 16 */ num_elements_total = buffer_size >> 1; } else if (display == cyclic_display_long_format) { format_string_size = (num_long_elements_per_line * 9) + 1; /* format_string_size = 73 */ num_elements_per_line = num_long_elements_per_line; /* num_elements_per_line = 8 */ num_elements_total = buffer_size >> 2; } else { format_string_size = (num_byte_elements_per_line * 3) + 1; /* format_string_size = 49 */ num_elements_per_line = num_byte_elements_per_line; /* num_elements_per_line = 16 */ num_elements_total = buffer_size; } /* allocate dynamic memory for one line */ pdata = (gchar *)wmem_alloc(wmem_packet_scope(), format_string_size); /* OK, let's get started */ idx = 0; num_elements = 0; line_offset = start_offset = offset; /* work through the display elements, 1 byte\word\long at a time */ for (a = 0; a < num_elements_total; a++ ) { /* use Wireshark accessor function to get the next byte, word, or long data */ if (display == cyclic_display_byte_format) { value8 = tvb_get_guint8(tvb, offset); offset++; } else if (display == cyclic_display_word_format) { value16 = tvb_get_ntohs(tvb, offset); offset += 2; } else if (display == cyclic_display_long_format) { value32 = tvb_get_ntohl(tvb, offset); offset += 4; } /* increment the num_elements we've done on the current line */ num_elements++; /* check if we hit the max number of byte elements per line */ if (num_elements >= num_elements_per_line) { /* we hit end of the current line */ /* add final value to string */ if (display == cyclic_display_byte_format) { g_snprintf(&pdata[idx], 32, "%02x",value8); } else if (display == cyclic_display_word_format) { g_snprintf(&pdata[idx], 32, "%04x",value16); } else if (display == cyclic_display_long_format) { g_snprintf(&pdata[idx], 32, "%08x",value32); } /* display the completed line in the sub-tree */ proto_tree_add_bytes_format(ecmp_current_tree, hf_ecmp_cyclic_data, tvb, offset, offset-line_offset, NULL, "%s", pdata); /* start the line over */ idx = 0; num_elements = 0; line_offset = offset; } else { /* we're still adding to the current line */ /* add current value to string */ if (display == cyclic_display_byte_format) { g_snprintf(&pdata[idx], 32, "%02x ",value8); idx += 3; } else if (display == cyclic_display_word_format) { g_snprintf(&pdata[idx], 32, "%04x ",value16); idx += 5; } else if (display == cyclic_display_long_format) { g_snprintf(&pdata[idx], 32, "%08x ",value32); idx += 9; } } } /* if we exited the loop, see if there's a partial line to display */ if (num_elements > 0) { /* add null-terminator to partial line */ pdata[idx] = 0x00; /* display the partial line in the sub-tree */ proto_tree_add_bytes_format(ecmp_current_tree, hf_ecmp_cyclic_data, tvb, start_offset, offset-start_offset, NULL, "%s", pdata); } } return offset; } /* a function returning the information requested by the 'info' command */ static void add_info_response(int offset, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_item* ecmp_info_address_item = NULL; proto_tree* ecmp_info_tree = NULL; proto_tree* ecmp_info_address_tree = NULL, *address_tree; guint16 length = 0; guint8 no_of_address = 0; guint8 i = 0; /*for counting */ length = tvb_reported_length(tvb); /*display info response tree */ ecmp_info_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 6, ett_ecmp_info_type, NULL, "Response Information"); /*display buffer size */ proto_tree_add_item(ecmp_info_tree, hf_ecmp_buffer_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset+= 2; /*display max response time */ proto_tree_add_item(ecmp_info_tree, hf_ecmp_max_response, tvb, offset, 2, ENC_BIG_ENDIAN); offset+= 2; /*display max handle period */ proto_tree_add_item(ecmp_info_tree, hf_ecmp_max_handle, tvb, offset, 2, ENC_BIG_ENDIAN); offset+= 2; if (length > offset) { /*display count of default server addresses */ ecmp_info_address_item = proto_tree_add_item(ecmp_tree, hf_ecmp_info_address, tvb, offset, 1, ENC_BIG_ENDIAN); ecmp_info_address_tree = proto_item_add_subtree(ecmp_info_address_item, ett_ecmp_info_count); no_of_address = tvb_get_guint8(tvb, offset); if (no_of_address > 0) { /*do code to display address data */ for (i = 0; i < no_of_address; i++) { address_tree = proto_tree_add_subtree_format(ecmp_info_address_tree, tvb, offset, 1, ett_ecmp_address, NULL, "Address %d", i+1); proto_tree_add_item(address_tree, hf_ecmp_physical_address, tvb, offset, 1, ENC_NA); proto_tree_add_item(address_tree, hf_ecmp_logical_address, tvb, offset, 1, ENC_NA); offset+= 1; } } } } /*--------------------------------------------------------------------*/ /* Parameter Access Commands */ /*--------------------------------------------------------------------*/ /* a function to display data given data_type */ static int get_data_type(packet_info* pinfo, int offset, guint8 data_type, tvbuff_t *tvb, proto_tree* ecmp_current_tree) { /*switch to decide correct data_type dissection*/ switch(data_type) { case 0: /*display boolean*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_boolean, tvb, offset, 1, ENC_NA); break; case 1: /*display INT8*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_int8, tvb, offset, 1, ENC_NA); break; case 2: /*display UINT8*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_uint8, tvb, offset, 1, ENC_NA); break; case 3: /*display INT16*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_int16, tvb, offset, 2, ENC_BIG_ENDIAN); offset+= 1; break; case 4: /*display UINT16*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_uint16, tvb, offset, 2, ENC_BIG_ENDIAN); offset+= 1; break; case 5: /*display INT32*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_int32, tvb, offset, 4, ENC_BIG_ENDIAN); offset+= 3; break; case 6: /*display UINT32*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_uint32, tvb, offset, 4, ENC_BIG_ENDIAN); offset+= 3; break; case 7: /*display INT64*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_int64, tvb, offset, 8, ENC_BIG_ENDIAN); offset+= 7; break; case 8: /*display UINT64*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_uint64, tvb, offset, 8, ENC_BIG_ENDIAN); offset+= 7; break; case 9: /*display INT128*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data, tvb, offset, 16, ENC_NA); offset += 15; break; case 10: /*display UINT128*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data, tvb, offset, 16, ENC_NA); offset += 15; break; case 20:/*display single float*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_float, tvb, offset, 4, ENC_BIG_ENDIAN); offset+= 3; break; case 21: /*display double float*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_data_double, tvb, offset, 8, ENC_BIG_ENDIAN); offset+= 7; break; case 30: /*display string ID*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_string_id, tvb, offset, 2, ENC_NA|ENC_ASCII); offset++; break; case 32: /*display (ECMP) string*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_ecmp_string, tvb, offset+1, 2, ENC_BIG_ENDIAN|ENC_ASCII); offset += (tvb_get_ntohs(tvb, offset+1) + 2); break; default: /*display untyped size*/ if (data_type < 128) { proto_tree_add_expert(ecmp_current_tree, pinfo, &ei_ecmp_data_type, tvb, 0, -1); } else { proto_tree_add_item(ecmp_current_tree, hf_ecmp_data, tvb, offset, (data_type- 127), ENC_NA); offset += (data_type- 128); } break; } return offset; } /* a function to add the parameter address schemes for 'read' command */ static int get_address_scheme(packet_info* pinfo, int offset, guint8 scheme, tvbuff_t *tvb, proto_tree* ecmp_parameter_tree) { /*if address scheme is standard*/ switch (scheme) { case 0: /*display Menu no. */ proto_tree_add_item(ecmp_parameter_tree, hf_ecmp_address_scheme_menu, tvb, offset, 2, ENC_BIG_ENDIAN); offset+= 2; /*display parameter no. */ proto_tree_add_item(ecmp_parameter_tree, hf_ecmp_address_scheme_parameter, tvb, offset, 2, ENC_BIG_ENDIAN); offset++; break; case 1:/*if address scheme is slot specific*/ /*display slot number*/ proto_tree_add_item(ecmp_parameter_tree, hf_ecmp_address_scheme_slot, tvb, offset, 1, ENC_NA); offset++; /*display Menu no. */ proto_tree_add_item(ecmp_parameter_tree, hf_ecmp_address_scheme_menu, tvb, offset, 2, ENC_BIG_ENDIAN); offset+= 2; /*display parameter no. */ proto_tree_add_item(ecmp_parameter_tree, hf_ecmp_address_scheme_parameter, tvb, offset, 2, ENC_BIG_ENDIAN); offset++; break; case 3: /*if address scheme is variable*/ /*display variable name */ offset--; proto_tree_add_item(ecmp_parameter_tree, hf_ecmp_variable_name, tvb, offset+1, 2, ENC_BIG_ENDIAN|ENC_ASCII); offset += (tvb_get_ntohs(tvb, offset+1) + 2); break; case 4: /*if address scheme is NULL*/ /*null size*/ proto_tree_add_item(ecmp_parameter_tree, hf_ecmp_address_scheme_null_byte_size, tvb, offset, 1, ENC_NA); offset++; break; default: proto_tree_add_expert(ecmp_parameter_tree, pinfo, &ei_ecmp_parameter_addressing_scheme, tvb, offset, 1); } return offset; } /* a function to display an array of the read address schemes */ static void get_parameter_definitions(packet_info* pinfo, int offset, guint8 command_value, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_item* ecmp_parameter_item = NULL; proto_tree* ecmp_parameter_number_tree = NULL; proto_tree* ecmp_parameter_tree = NULL; guint8 count = 0; guint8 a = 0; guint8 data_type = 0; gint8 dec = 0; guint8 scheme = 0; guint16 n = 0; scheme = tvb_get_guint8(tvb, offset); ecmp_parameter_item = proto_tree_add_item(ecmp_tree, hf_ecmp_parameter_address, tvb, offset, 1, ENC_BIG_ENDIAN); ecmp_parameter_tree = proto_item_add_subtree(ecmp_parameter_item, ett_ecmp_param_address); offset++; /* if "GetNextObjects" command */ if(command_value == ECMP_COMMAND_GETNEXTOBJECTS) { offset = get_address_scheme(pinfo, offset, scheme, tvb, ecmp_parameter_tree); offset++; proto_tree_add_item(ecmp_tree, hf_ecmp_number_of_subsequent_object_requests, tvb, offset, 1, ENC_NA); }else { /*display tree with count of definitions */ ecmp_parameter_item = proto_tree_add_item(ecmp_tree, hf_ecmp_number_of_parameter_definitions, tvb, offset, 1, ENC_BIG_ENDIAN); ecmp_parameter_number_tree = proto_item_add_subtree(ecmp_parameter_item, ett_ecmp_param_address); count = tvb_get_guint8(tvb,offset); offset++; switch(scheme)/*sets n so that the tree highlights bytes in scheme specific data*/ { case 0: n = 4; break; case 1: n = 5; break; case 3: n = 1 + ((tvb_get_guint8(tvb, offset+1)<<8)|(tvb_get_guint8(tvb, offset+2))); break; default: n = 0; break; } if (command_value == ECMP_COMMAND_OBJECTINFO) { n += 1; } for (a = 0; a < count; a++) { ecmp_parameter_tree = proto_tree_add_subtree_format(ecmp_parameter_number_tree, tvb, offset, n, ett_ecmp_param_address, NULL, "Parameter Definition %d:", (a+1)); if (command_value == ECMP_COMMAND_OBJECTINFO) { proto_tree_add_item(ecmp_parameter_tree, hf_ecmp_info_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; offset = get_address_scheme(pinfo, offset, scheme, tvb, ecmp_parameter_tree); offset++; } else { /*output the address schemes of the parameter requests */ offset = get_address_scheme(pinfo, offset, scheme, tvb, ecmp_parameter_tree); offset++; if (command_value == ECMP_COMMAND_WRITE) { data_type = tvb_get_guint8(tvb, offset); proto_tree_add_item(ecmp_parameter_tree, hf_ecmp_data_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; dec = (gint8)tvb_get_guint8(tvb, offset); if (dec != -1) { proto_tree_add_int(ecmp_parameter_tree, hf_ecmp_number_of_decimal_places, tvb, offset, 1, dec); } else { proto_tree_add_int_format_value(ecmp_parameter_tree, hf_ecmp_number_of_decimal_places, tvb, offset, 1, dec, "0 (Invalid type)"); } offset++; offset = get_data_type(pinfo, offset, data_type, tvb, ecmp_parameter_tree); offset++; } } } } } /* a function to show the "objectinfo" command response */ static void get_object_info_response(packet_info* pinfo, int offset, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_item* ecmp_response_item = NULL; proto_tree* ecmp_parameter_number_tree = NULL; proto_tree* ecmp_parameter_response_tree = NULL; guint8 count = 0; /*stores number of parameter read responses */ guint8 a = 0; /*counting varables */ guint8 n = 0; guint8 info_type0 = 0; guint16 length = 0; guint8 data_type = 0; length = tvb_reported_length(tvb); ecmp_response_item = proto_tree_add_item(ecmp_tree, hf_ecmp_number_of_parameter_responses, tvb, offset, 1, ENC_BIG_ENDIAN); ecmp_parameter_number_tree = proto_item_add_subtree(ecmp_response_item, ett_ecmp_param_address); count = tvb_get_guint8(tvb, offset); if (count == 0) { offset++; proto_tree_add_item(ecmp_parameter_number_tree, hf_ecmp_parameter_status, tvb, offset, 1, ENC_BIG_ENDIAN); } else { /*display info data response */ for (a = 0; a < count; a++) { if (a==0) { n = (length-offset)/count; } offset++; /*display response header */ proto_tree_add_subtree_format(ecmp_parameter_number_tree, tvb, offset, n, ett_ecmp_command, NULL, "Response %d:", (a+1)); /*display response status */ proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_parameter_status, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /*display response data */ proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_info_type, tvb, offset, 1, ENC_BIG_ENDIAN); info_type0 = tvb_get_guint8(tvb, offset); switch(info_type0) { case 0: /*no information available */ proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_no_information_available, tvb, offset, 1, ENC_NA); break; case 1: /*display min parameter in menu */ offset++; proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_min_param_menu, tvb, offset, 2, ENC_BIG_ENDIAN); offset++; break; case 2: /*display max parameter in menu */ offset++; proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_max_param_menu, tvb, offset, 2, ENC_BIG_ENDIAN); offset++; break; case 3: { static const int * fields[] = { &hf_ecmp_param_format_bit_default_unipolar, &hf_ecmp_param_format_write_allowed, &hf_ecmp_param_format_read_not_allowed, &hf_ecmp_param_format_protected_from_destinations, &hf_ecmp_param_format_parameter_not_visible, &hf_ecmp_param_format_not_clonable, &hf_ecmp_param_format_voltage_or_current_rating_dependant, &hf_ecmp_param_format_parameter_has_no_default, &hf_ecmp_param_format_number_of_decimal_places, &hf_ecmp_param_format_variable_maximum_and_minimum, &hf_ecmp_param_format_string_parameter, &hf_ecmp_param_format_desitination_set_up_parameter, &hf_ecmp_param_format_filtered_when_displayed, &hf_ecmp_param_format_pseudo_read_only, &hf_ecmp_param_format_display_format, &hf_ecmp_param_format_floating_point_value, &hf_ecmp_param_format_units, NULL }; /*display data for parameter format- UNITS and Display Format need dissecting? */ offset++; proto_tree_add_bitmask_list(ecmp_parameter_response_tree, tvb, offset, 4, fields, ENC_BIG_ENDIAN); offset+= 3; } break; case 4: /*display minimum allowed value*/ offset++; data_type = tvb_get_guint8(tvb,offset); ecmp_response_item = proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_data_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; offset = get_data_type(pinfo, offset, data_type, tvb, ecmp_parameter_response_tree); break; case 5: /*display maximum allowed value*/ offset++; data_type = tvb_get_guint8(tvb,offset); ecmp_response_item = proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_data_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; offset = get_data_type(pinfo, offset, data_type, tvb, ecmp_parameter_response_tree); break; case 6: /*display Units- ID string */ offset++; proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_string_id, tvb, offset, 2, ENC_NA|ENC_ASCII); offset++; break; case 7: /*display data type */ offset++; ecmp_response_item = proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_data_type, tvb, offset, 1, ENC_BIG_ENDIAN); break; default: expert_add_info(pinfo, ecmp_response_item, &ei_ecmp_info_type); break; } } } } /* a function to display an array of the read responses */ static int get_parameter_responses(packet_info* pinfo, int offset, guint8 command_value, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_item* ecmp_response_item = NULL; proto_tree* ecmp_parameter_number_tree = NULL; proto_tree* ecmp_parameter_response_tree = NULL; guint8 count = 0; /*stores number of parameter read responses */ guint8 a = 0; /*counting varables */ guint8 data_type = 0; guint8 unit_id = 0; gint8 dec = 0; guint16 n = 0; guint8 st_error = 0; guint16 length = 0; guint8 scheme = 0; int start_offset; scheme = tvb_get_guint8(tvb, offset); length = tvb_reported_length(tvb); if (command_value == ECMP_COMMAND_GETNEXTOBJECTS) { /*display addressing scheme*/ proto_tree_add_item(ecmp_tree, hf_ecmp_parameter_address, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; } /*display number of responses*/ ecmp_response_item = proto_tree_add_item(ecmp_tree, hf_ecmp_number_of_parameter_responses, tvb, offset, 1, ENC_BIG_ENDIAN); ecmp_parameter_number_tree = proto_item_add_subtree(ecmp_response_item, ett_ecmp_param_address); count = tvb_get_guint8(tvb, offset); if (count == 0) { offset++; if (command_value != ECMP_COMMAND_GETNEXTOBJECTS) { /*display parameter status*/ proto_tree_add_item(ecmp_parameter_number_tree, hf_ecmp_parameter_status, tvb, offset, 1, ENC_BIG_ENDIAN); } } else { /*loop for outputting parameter data responses*/ for (a = 0; a < count; a++) { if (command_value == ECMP_COMMAND_WRITE) { if (a==0) { n = (length-offset)/count; /*set byte highlighting*/ } offset++; /*display response: (a+1)*/ ecmp_parameter_response_tree = proto_tree_add_subtree_format(ecmp_parameter_number_tree, tvb, offset, n, ett_ecmp_command, NULL, "Response %d:", (a+1)); ecmp_response_item = proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_parameter_status, tvb, offset, 1, ENC_BIG_ENDIAN); } else if (command_value == ECMP_COMMAND_GETNEXTOBJECTS) { if (a==0) { n = (length-offset)/count; } offset++; /*display response: (a+1)*/ ecmp_parameter_response_tree = proto_tree_add_subtree_format(ecmp_parameter_number_tree, tvb, offset, n, ett_ecmp_command, NULL, "Response %d:", (a+1)); offset = get_address_scheme(pinfo, offset, scheme, tvb, ecmp_parameter_response_tree); } else { /*if status is error */ if ((gint8)tvb_get_guint8(tvb, offset+1) < 0) { /*output status*/ st_error = 1; offset++; ecmp_parameter_response_tree = proto_tree_add_subtree_format(ecmp_parameter_number_tree, tvb, offset, 1, ett_ecmp_command, NULL, "Response %d:", (a+1)); ecmp_response_item = proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_parameter_status, tvb, offset, 1, ENC_BIG_ENDIAN); if ((a+1) != count) { /*loop to move to next data_type (skips bytes == 0)*/ while(1) { if(tvb_get_guint8(tvb, offset+1)==0) { offset++; } else { break; } } } } else { offset++; /*display reponse data_byte*/ start_offset = offset; ecmp_parameter_response_tree = proto_tree_add_subtree_format(ecmp_parameter_number_tree, tvb, offset, 0, ett_ecmp_command, &ecmp_response_item, "Response %d:", (a+1)); proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_parameter_status, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_data_type, tvb, offset, 1, ENC_BIG_ENDIAN); data_type = tvb_get_guint8(tvb,offset); offset++; offset = get_data_type(pinfo, offset, data_type, tvb, ecmp_parameter_response_tree); /*if "ReadWithType" */ if ((command_value == ECMP_COMMAND_READWITHTYPE) && (st_error!= 1)) { offset++; /*display decimal places*/ dec = (gint8)tvb_get_guint8(tvb, offset); if (dec != -1) { proto_tree_add_int(ecmp_parameter_response_tree, hf_ecmp_number_of_decimal_places, tvb, offset, 1, dec); } else { proto_tree_add_int_format_value(ecmp_parameter_response_tree, hf_ecmp_number_of_decimal_places, tvb, offset, 1, dec, "0 (Invalid type)"); } offset++; /*display unit ID*/ unit_id = tvb_get_guint8(tvb, offset); proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_display_unit_id, tvb, offset, 1, ENC_NA); if (unit_id == 255) { offset++; proto_tree_add_item(ecmp_parameter_response_tree, hf_ecmp_unit_id_string, tvb, offset, 2, ENC_BIG_ENDIAN|ENC_ASCII); offset += (tvb_get_ntohs(tvb, offset) + 2); } } proto_item_set_len(ecmp_response_item, offset-start_offset); } } } } return offset; } /*--------------------------------------------------------------------*/ /* File Access Commands */ /*--------------------------------------------------------------------*/ /* a function to dissect "FileOpen" command */ static void file_open(int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_tree* ecmp_scheme_data_tree = NULL; guint8 additional_scheme = 0; guint8 relative = 0; if (request) { static const int * fields[] = { &hf_ecmp_open_in_non_blocking_mode, &hf_ecmp_open_file_relative_to_specified_directory_handle, &hf_ecmp_file_access_mode, NULL }; proto_tree_add_bitmask(ecmp_tree, tvb, offset, hf_ecmp_access_mode, ett_ecmp_access_mode, fields, ENC_BIG_ENDIAN); offset++; /*display additional scheme*/ proto_tree_add_item(ecmp_tree, hf_ecmp_additional_scheme, tvb, offset, 1, ENC_BIG_ENDIAN); additional_scheme= tvb_get_guint8(tvb, offset); /*display file name*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_name, tvb, offset+1, 2, ENC_BIG_ENDIAN|ENC_ASCII); offset += (tvb_get_ntohs(tvb, offset+1) + 2); /*only show file handle in relative mode*/ if (relative == 1) { offset++; /*display file handle*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_handle, tvb, offset, 2, ENC_BIG_ENDIAN); } if (additional_scheme == 1) { /*display additional data*/ offset+= 2; ecmp_scheme_data_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, -1, ett_ecmp_access_file, NULL, "Additional scheme data"); proto_tree_add_item(ecmp_scheme_data_tree, hf_ecmp_scheme_data_length, tvb, offset, 1, ENC_NA); offset++; proto_tree_add_item(ecmp_scheme_data_tree, hf_ecmp_data, tvb, offset, -1, ENC_NA); } } else { /*display file status*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_status, tvb, offset, 1, ENC_BIG_ENDIAN); if ((gint8)tvb_get_guint8(tvb, offset) >= 0) { offset++; /*display file handle*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_handle, tvb, offset, 2, ENC_BIG_ENDIAN); } } } /* a function to dissect "FileRead" command */ static void file_read(int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { guint16 req_bytes = 0; if (request) { /*display file handle*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_handle, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; /*display requested bytes*/ proto_tree_add_item(ecmp_tree, hf_ecmp_number_of_requested_bytes, tvb, offset, 2, ENC_BIG_ENDIAN); } else { /*display file status*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_status, tvb, offset, 1, ENC_BIG_ENDIAN); if ((gint8)tvb_get_guint8(tvb, offset)>= 0) { offset++; /*display bytes for reading*/ req_bytes = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ecmp_tree, hf_ecmp_response_data, tvb, offset, req_bytes+2, ENC_NA); /*offset += (2+req_bytes);*/ } } } /* a function to dissect "FileWrite" command */ static void file_write(int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { guint16 req_bytes; if (request) { /*display file handle*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_handle, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; /*display bytes for writing*/ req_bytes = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ecmp_tree, hf_ecmp_data, tvb, offset+2, req_bytes, ENC_NA); /*offset += (2+req_bytes);*/ } else { /*display file status*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_status, tvb, offset, 1, ENC_BIG_ENDIAN); /*offset++;*/ } } /*a function to dissect "FileClose" command*/ static void file_close(int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { if (request) { /*display file handle*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_handle, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; /*display number of data bytes transferred*/ proto_tree_add_item(ecmp_tree, hf_ecmp_number_of_bytes_transferred, tvb, offset, 4, ENC_BIG_ENDIAN); offset+= 4; /*display CRC value*/ proto_tree_add_item(ecmp_tree, hf_ecmp_crc, tvb, offset, 4, ENC_BIG_ENDIAN); } else { /*display file status*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_status, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; } } /*a function to display file attributes*/ static int get_file_attribute(packet_info* pinfo, int offset, guint8 attribute0, tvbuff_t *tvb, proto_tree* ecmp_current_tree) { nstime_t ts; switch(attribute0) { case 0: /*display length of file*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_file_length, tvb, offset, 4, ENC_BIG_ENDIAN); offset+= 3; break; case 1: /*display integrity*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_file_integrity, tvb, offset, 1, ENC_BIG_ENDIAN); break; case 2: /*display CRC*/ proto_tree_add_item(ecmp_current_tree, hf_ecmp_crc, tvb, offset, 4, ENC_BIG_ENDIAN); offset+= 3; break; case 3: /*display attrib*/ { static const int * fields[] = { &hf_ecmp_display_attr_read_only, &hf_ecmp_display_attr_hidden, &hf_ecmp_display_attr_system, &hf_ecmp_display_attr_volume_label, &hf_ecmp_display_attr_subdirectory, &hf_ecmp_display_attr_archive, NULL }; proto_tree_add_bitmask_list(ecmp_current_tree, tvb, offset, 1, fields, ENC_BIG_ENDIAN); } break; case 4: /*display creation date*/ ts.secs = tvb_get_ntohl(tvb, offset); ts.nsecs = 0; proto_tree_add_time(ecmp_current_tree, hf_ecmp_display_creation, tvb, offset, 4, &ts); offset+= 3; break; case 5: /*display modification date*/ ts.secs = tvb_get_ntohl(tvb, offset); ts.nsecs = 0; proto_tree_add_time(ecmp_current_tree, hf_ecmp_display_modification, tvb, offset, 4, &ts); offset+= 3; break; default: /*display incorrect attribute type error*/ proto_tree_add_expert(ecmp_current_tree, pinfo, &ei_ecmp_attribute_type, tvb, offset, 1); break; } return offset; } /*a function to dissect "FileInfo" command*/ static void file_info(packet_info* pinfo, int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_item* ecmp_file_info_item = NULL; proto_tree* ecmp_file_info_tree = NULL; proto_tree* ecmp_file_info_att_tree = NULL; guint8 no_of_att = 0; guint8 attribute0 = 0; guint8 a = 0; int start_offset; if (request) { /*display file handle*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_handle, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; /*display number of attributes*/ no_of_att = tvb_get_guint8(tvb, offset); ecmp_file_info_item = proto_tree_add_uint(ecmp_tree, hf_ecmp_no_of_attributes, tvb, offset, 1, no_of_att); ecmp_file_info_tree = proto_item_add_subtree(ecmp_file_info_item, ett_ecmp_file_info); offset++; /*display attributes*/ for (a = 0; a < no_of_att; a++) { ecmp_file_info_item = proto_tree_add_item(ecmp_file_info_tree, hf_ecmp_file_attributes, tvb, offset, 1, ENC_BIG_ENDIAN); ecmp_file_info_att_tree = proto_item_add_subtree(ecmp_file_info_item, ett_ecmp_file_info_att); attribute0 = tvb_get_guint8(tvb, offset); offset++; offset = get_file_attribute(pinfo, offset, attribute0, tvb, ecmp_file_info_att_tree); } proto_item_set_len(ecmp_file_info_item, no_of_att); } else { /*display file status*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_status, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /*display number of attributes*/ no_of_att = tvb_get_guint8(tvb, offset); ecmp_file_info_item = proto_tree_add_uint(ecmp_tree, hf_ecmp_no_of_attributes, tvb, offset, 1, no_of_att); ecmp_file_info_tree = proto_item_add_subtree(ecmp_file_info_item, ett_ecmp_file_info); start_offset = offset; /*display attributes*/ for (a = 0; a < no_of_att; a++) { offset++; ecmp_file_info_item = proto_tree_add_item(ecmp_file_info_tree, hf_ecmp_file_attributes, tvb, offset, 1, ENC_BIG_ENDIAN); ecmp_file_info_att_tree = proto_item_add_subtree(ecmp_file_info_item, ett_ecmp_file_info_att); attribute0 = tvb_get_guint8(tvb, offset); offset++; offset = get_file_attribute(pinfo, offset, attribute0, tvb, ecmp_file_info_att_tree); } proto_item_set_len(ecmp_file_info_item, offset-start_offset); } } /*a function to dissect "FileStatus"/"FileDelete" commands*/ static void file_state_delete(guint16 offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { if (request) { /*display file handle*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_handle, tvb, offset, 2, ENC_BIG_ENDIAN); } else { /*display file status*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_status, tvb, offset, 1, ENC_BIG_ENDIAN); } } /*a function to dissect "FilePos" command*/ static void file_pos(int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_tree* ecmp_file_position_tree = NULL; if (request) { /*display file handle*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_handle, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; /*display "position" header*/ ecmp_file_position_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 5, ett_ecmp_file_position, NULL, "Position"); /*display reference point*/ proto_tree_add_item(ecmp_file_position_tree, hf_ecmp_file_ref_point, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /*display offset from ref point*/ proto_tree_add_item(ecmp_file_position_tree, hf_ecmp_ref_offset, tvb, offset, 4, ENC_BIG_ENDIAN); } else { /*display file status*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_status, tvb, offset, 1, ENC_BIG_ENDIAN); if((gint8)tvb_get_guint8(tvb,offset) >= 0) { offset++; /*display offset from ref point*/ proto_tree_add_item(ecmp_file_position_tree, hf_ecmp_ref_offset, tvb, offset, 4, ENC_BIG_ENDIAN); } } } /*a function to dissect "FileList" command*/ static void file_list(packet_info* pinfo, int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_item* ecmp_file_list_item, *ecmp_file_list_item2, *item_type_item; proto_tree* ecmp_file_list_no_tree = NULL; proto_tree* ecmp_file_list_tree = NULL; guint8 no_of_items = 0; guint8 item_type = 0; guint8 a = 0; guint16 n = 0; int start_offset, start_offset2; if (request) { /*display file handle*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_handle, tvb, offset, 2, ENC_BIG_ENDIAN); offset+= 2; /*display number of files to list*/ proto_tree_add_item(ecmp_tree, hf_ecmp_number_of_files_to_list, tvb, offset, 1, ENC_NA); } else { /*display file status*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_status, tvb, offset, 1, ENC_BIG_ENDIAN); if ((gint8)tvb_get_guint8(tvb,offset) >= 0) { offset++; /*display number of files to list*/ no_of_items = tvb_get_guint8(tvb, offset); ecmp_file_list_item = proto_tree_add_item(ecmp_tree, hf_ecmp_number_of_files_to_list, tvb, offset, 1, ENC_NA); offset++; /*display hash value (dissection TBD)*/ ecmp_file_list_item = proto_tree_add_item(ecmp_tree, hf_ecmp_file_hash, tvb, offset, 2, ENC_BIG_ENDIAN); offset++; /*display subtree for files*/ start_offset = offset+1; ecmp_file_list_no_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset+1, no_of_items, ett_ecmp_file_list_no, &ecmp_file_list_item, "Files"); /*display list of file names*/ for (a = 0; a < no_of_items; a++) { start_offset2 = offset; offset++; item_type = tvb_get_guint8(tvb, offset); n = tvb_get_ntohs(tvb, offset+1); ecmp_file_list_tree = proto_tree_add_subtree_format(ecmp_file_list_no_tree, tvb, offset, n+2, ett_ecmp_file_list, &ecmp_file_list_item2, "File %d:", a+1); item_type_item = proto_tree_add_item(ecmp_file_list_tree, hf_ecmp_item_type, tvb, offset, 1, ENC_NA); switch(item_type) { case 0: /*if item type is "file"*/ proto_tree_add_item(ecmp_file_list_tree, hf_ecmp_file_name, tvb, offset+1, 2, ENC_BIG_ENDIAN|ENC_ASCII); break; case 1: /*if item type is "directory"*/ proto_tree_add_item(ecmp_file_list_tree, hf_ecmp_directory, tvb, offset+1, 2, ENC_BIG_ENDIAN|ENC_ASCII); break; default: /*if item type is not "file" or "directory"*/ expert_add_info(pinfo, item_type_item, &ei_ecmp_item_type); break; } offset+= n; proto_item_set_len(ecmp_file_list_item2, offset-start_offset2); } proto_item_set_len(ecmp_file_list_item, (offset+1)-start_offset); } } } /*a function to dissect "FileExists" command*/ static void file_exists(int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { if (request) { /*display filename*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_name, tvb, offset, 2, ENC_BIG_ENDIAN|ENC_ASCII); } else { /*display file status*/ proto_tree_add_item(ecmp_tree, hf_ecmp_file_status, tvb, offset, 1, ENC_BIG_ENDIAN); } } static int add_cyclic_setup_attributes(packet_info* pinfo, int offset, guint16 length, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_item *cyclic_setup_attributes_root = NULL; proto_item *cyclic_setup_attributes = NULL; proto_item *cyclic_setup_attrib_item_root = NULL; proto_tree *cyclic_setup_attrib_item = NULL; guint8 attrib; /* num attribs */ cyclic_setup_attributes_root = proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_attrib_count, tvb, offset++, 1, ENC_BIG_ENDIAN); /* attrib list */ cyclic_setup_attributes = proto_item_add_subtree(cyclic_setup_attributes_root, ett_cyclic_setup_attribs); while (offset < length) { attrib = tvb_get_guint8(tvb, offset); cyclic_setup_attrib_item_root = proto_tree_add_item(cyclic_setup_attributes, hf_ecmp_cyclic_setup_attrib, tvb, offset++, 1, ENC_BIG_ENDIAN); cyclic_setup_attrib_item = proto_item_add_subtree(cyclic_setup_attrib_item_root, ett_cyclic_setup_attrib_item); switch (attrib) { case 3: /* mec offset */ { proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_mec_offset, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } break; case 4: /* sample period */ case 5: /* mec delay */ { proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_sample_period, tvb, offset, 8, ENC_BIG_ENDIAN); offset += 8; } break; case 7: /* rx timeout */ { guint32 val; /* tout */ val = tvb_get_ntohl(tvb, offset); proto_tree_add_uint_format_value(cyclic_setup_attrib_item, hf_ecmp_rx_timeout, tvb, offset, 4, val, "%dus", val); offset += 4; /* action */ proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_rx_action, tvb, offset++, 1, ENC_NA); /* event dest */ proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_rx_event_destination, tvb, offset++, 1, ENC_NA); /* event */ proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_rx_event, tvb, offset++, 1, ENC_NA); } break; case 8: /* rx late handler */ { /* action */ proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_rx_late_handler_action, tvb, offset++, 1, ENC_NA); /* event dest */ proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_rx_late_handler_event_destination, tvb, offset++, 1, ENC_NA); /* event */ proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_rx_late_handler_event, tvb, offset++, 1, ENC_NA); } break; case 9: /* transport addr */ { /* scheme */ proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_transport_addr_scheme, tvb, offset++, 1, ENC_NA); /* todo - make this check the scheme is actually 0! */ proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_transport_addr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } break; case 12: /* mapping item */ { guint8 addrScheme; proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_mapping_item_offset, tvb, offset++, 1, ENC_NA); addrScheme = tvb_get_guint8(tvb, offset); proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_mapping_item_scheme, tvb, offset++, 1, ENC_NA); offset = get_address_scheme(pinfo, offset, addrScheme, tvb, cyclic_setup_attrib_item); /* todo - should this be done in the last function itself??? */ offset++; } break; case 0: /* state */ case 1: /* rx/tx */ case 2: /* synchronised */ case 6: /* data change */ case 10: /* max mappings */ case 11: /* num mappings */ case 13: /* saveable */ case 128: /* max rx links */ case 129: /* max tx links */ case 130: /* max mappings per link */ case 131: /* max sync rx links */ case 132: /* max sync tx links */ case 133: /* max mappings per sync link */ case 134: /* process at queue depth */ { proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_setup_attribute, tvb, offset++, 1, ENC_NA); } break; case 135: /* mec period */ { proto_tree_add_item(cyclic_setup_attrib_item, hf_ecmp_mec_period, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } break; default: break; } /* attribute switch */ } /* loop through list */ return offset; } static void cyclic_setup(packet_info* pinfo, guint16 offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { guint16 length = 0; proto_item* cyclic_setup_attributes_root = NULL; proto_item* cyclic_setup_attributes = NULL; guint8 Mode; length = tvb_reported_length(tvb); /* if a request add the check output flag */ if (request) { proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_linkno, tvb, offset++, 1, ENC_BIG_ENDIAN); Mode = tvb_get_guint8(tvb, offset); proto_tree_add_uint(ecmp_tree, hf_ecmp_cyclic_setup_mode, tvb, offset++, 1, Mode); switch (Mode) { case 0: /* create */ case 10: /* set */ { /* link direction */ proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_dir, tvb, offset++, 1, ENC_BIG_ENDIAN); /* add the attributesd as a tree */ add_cyclic_setup_attributes(pinfo, offset, length, tvb, ecmp_tree); } break; case 1: /* edit */ case 2: /* finalise */ case 3: /* delete */ case 4: /* exist */ /* link direction */ proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_dir, tvb, offset++, 1, ENC_BIG_ENDIAN); break; case 5: /* list */ /* tx/rx bits */ proto_tree_add_item(ecmp_tree, hf_ecmp_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); break; case 11: /* get */ case 6: /* info */ { if (Mode == 11) { /* link dir */ proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_dir, tvb, offset++, 1, ENC_BIG_ENDIAN); } /* num attribs */ cyclic_setup_attributes_root = proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_attrib_count, tvb, offset++, 1, ENC_BIG_ENDIAN); /* attrib list */ cyclic_setup_attributes = proto_item_add_subtree(cyclic_setup_attributes_root, ett_cyclic_setup_attribs); while (offset < length) { proto_tree_add_item(cyclic_setup_attributes, hf_ecmp_cyclic_setup_attrib, tvb, offset++, 1, ENC_BIG_ENDIAN); } } break; case 12: /* get mappings */ { /* link dir */ proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_dir, tvb, offset++, 1, ENC_BIG_ENDIAN); /* max mappings */ proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_max_mappings, tvb, offset++, 1, ENC_NA); /* start offset */ proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_start_offset, tvb, offset++, 1, ENC_NA); } break; default: /* display payload as hex bytes */ proto_tree_add_item(ecmp_tree, hf_ecmp_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); break; } } else { proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_rsp_status, tvb, offset++, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_rsp_err_idx, tvb, offset++, 1, ENC_BIG_ENDIAN); Mode = tvb_get_guint8(tvb, offset); proto_tree_add_uint(ecmp_tree, hf_ecmp_cyclic_setup_mode, tvb, offset++, 1, Mode); switch (Mode) { case 0: /* create */ case 1: /* edit */ case 2: /* finalise */ case 3: /* delete */ /* no mode specific datan */ break; case 4: /* exist */ proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_link_exists, tvb, offset++, 1, ENC_BIG_ENDIAN); break; case 5: /* list */ { guint8 txCount, rxCount, linkno; /* num attribs */ txCount = tvb_get_guint8(tvb, offset); cyclic_setup_attributes_root = proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_tx_count, tvb, offset++, 1, ENC_NA); /* link list */ cyclic_setup_attributes = proto_item_add_subtree(cyclic_setup_attributes_root, ett_cyclic_setup_attribs); while (txCount > 0) { linkno = tvb_get_guint8(tvb, offset); proto_tree_add_uint(cyclic_setup_attributes, hf_ecmp_cyclic_setup_linkno, tvb, offset++, 1, linkno); txCount--; } rxCount = tvb_get_guint8(tvb, offset); cyclic_setup_attributes_root = proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_rx_count, tvb, offset++, 1, ENC_NA); /* link list */ cyclic_setup_attributes = proto_item_add_subtree(cyclic_setup_attributes_root, ett_cyclic_setup_attribs); while (rxCount > 0) { linkno = tvb_get_guint8(tvb, offset); proto_tree_add_uint(cyclic_setup_attributes, hf_ecmp_cyclic_setup_linkno, tvb, offset++, 1, linkno); rxCount--; } } break; case 10: /* set */ { /* num attribs */ cyclic_setup_attributes_root = proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_setup_attrib_count, tvb, offset++, 1, ENC_BIG_ENDIAN); /* attrib list */ cyclic_setup_attributes = proto_item_add_subtree(cyclic_setup_attributes_root, ett_cyclic_setup_attribs); while (offset < length) { proto_tree_add_item(cyclic_setup_attributes, hf_ecmp_cyclic_setup_attrib, tvb, offset++, 1, ENC_BIG_ENDIAN); } } break; case 11: /* get */ case 12: /* get mappings */ case 6: /* info */ /* add the attributesd as a tree */ add_cyclic_setup_attributes(pinfo, offset, length, tvb, ecmp_tree); break; default: /* display payload as hex bytes */ proto_tree_add_item(ecmp_tree, hf_ecmp_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); break; } } } /*a function to dissect "ProgramStatus" command */ static void program_status(int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { /* Description:function to dissect Program Status command */ /* */ /* Inputs: */ /* offset - current offset of pointer within the ECMP frame */ /* command_value - function code of ECMP message */ /* request - (1 = query, 0 = response) */ /* tvb - Wireshark protocol tree */ /* ecmp_tree - Wireshark protocol tree */ /* tree - Wireshark protocol tree */ /* */ /* Returns: nothing */ /* */ /* Notes: for queries, the "offset" points to the "target". */ /* for responses, the "offset" points to the "status". */ /* */ /* sample ECMP Request Frame */ /* 0x61 - request code (program control) */ /* 0x00 - option terminator */ /* 0x00 - target (0 = default program) <======== offset */ /* */ /* sample ECMP Response Frame */ /* 0xE1 - response code (program control) */ /* 0x00 - option terminator */ /* 0x01 - running state (0=Stopped, 1=Running ... ) <======== offset */ /* 0x00 - additional items */ proto_item* ecmp_program_status_message_tree = NULL; /* differentiate between ECMP query and response */ if (request) { /*display the program control details sub-tree */ ecmp_program_status_message_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 1, ett_ecmp_program_status_message, NULL, "Program Status: (Query)"); /* read the target */ proto_tree_add_item(ecmp_program_status_message_tree, hf_ecmp_program_status_target, tvb, offset, 1, ENC_NA); } else { /*display the program status details sub-tree */ ecmp_program_status_message_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 2, ett_ecmp_program_status_message, NULL, "Program Status: (Response)"); /* read and display the Status */ proto_tree_add_item(ecmp_program_status_message_tree, hf_ecmp_program_status_status, tvb, offset, 1, ENC_NA); offset += 1; /* read and display the Additional Items */ proto_tree_add_item(ecmp_program_status_message_tree, hf_ecmp_program_status_additional_items, tvb, offset, 1, ENC_NA); } } /*a function to dissect "ProgramControl" command */ static void program_control(int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { /* Description:function to dissect Program Control command */ /* */ /* Inputs: */ /* offset - current offset of pointer within the ECMP frame */ /* command_value - function code of ECMP message */ /* request - (1 = query, 0 = response) */ /* tvb - Wireshark protocol tree */ /* ecmp_tree - Wireshark protocol tree */ /* tree - Wireshark protocol tree */ /* */ /* Returns: nothing */ /* */ /* Notes: for querys, the "offset" points to the "target". */ /* for responses, the "offset" points to the "status". */ /* */ /* sample ECMP Request Frame */ /* 0x60 - request code (program control) */ /* 0x00 - option terminator */ /* 0x00 - target (0 = default program) <======== offset */ /* 0x01 - command (1 = start the program) */ /* 0x00 - sub command */ /* */ /* sample ECMP Response Frame */ /* 0xE0 - response code (program control) */ /* 0x00 - option terminator */ /* 0x00 - status (0 = OK) <======== offset */ /* */ proto_item* ecmp_program_control_message_tree = NULL; /* differentiate between ECMP query and response */ if (request) { /*display the program control details sub-tree */ ecmp_program_control_message_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 3, ett_ecmp_program_control_message, NULL, "Program Control: (Query)"); /* read the target */ proto_tree_add_item(ecmp_program_control_message_tree, hf_ecmp_program_control_target, tvb, offset, 1, ENC_NA); offset += 1; /* read the command */ proto_tree_add_item(ecmp_program_control_message_tree, hf_ecmp_program_control_command, tvb, offset, 1, ENC_NA); offset += 1; /* read the subcommand */ proto_tree_add_item(ecmp_program_control_message_tree, hf_ecmp_program_control_sub_command, tvb, offset, 1, ENC_NA); } else { /*display the program control details sub-tree */ ecmp_program_control_message_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 1, ett_ecmp_program_control_message, NULL, "Program Control: (Response)"); /* read and display the Status */ proto_tree_add_item(ecmp_program_control_message_tree, hf_ecmp_program_control_status, tvb, offset, 1, ENC_NA); } } /*a function to dissect "ModbusPDU" command */ static void modbus_pdu(int offset, gboolean request, tvbuff_t *tvb, packet_info* pinfo, proto_tree* ecmp_tree) { /* Description:function to dissect Modbus PDU ECMP transactions */ /* */ /* Inputs: */ /* offset - current offset of pointer within the ECMP frame */ /* command_value - function code of ECMP message */ /* request - (1 = query, 0 = response) */ /* tvb - Wireshark protocol tree */ /* ecmp-tree - Wireshark protocol tree */ /* tree - Wireshark protocol tree */ /* */ /* Returns: nothing */ /* */ /* Notes: for querys, the "offset" points to the "size". */ /* for responses, the "offset" points to the size. */ /* */ /* sample ECMP Request Frame (Read Holding Registers) */ /* 0x74 - request code (ModbusMaster) */ /* 0x00 - option terminator */ /* 0x00 - size msb <======== offset */ /* 0x05 - size lsb */ /* 0x03 - function code - read hold reg */ /* 0x07 - register address (#20.021) msb */ /* 0xE4 - register address lsb */ /* 0x00 - number registers msb */ /* 0x03 - number registers lsb */ /* */ /* sample ECMP Response Frame */ /* 0xF4 - response code (ModbusMaster) */ /* 0x00 - option terminator */ /* 0x00 - size msb <======== offset */ /* 0x08 - size lsb */ /* 0x03 - function code - read hold reg */ /* 0x06 - byte count */ /* 0x30 - register #2021 value 12345 msb */ /* 0x39 - register #2021 value lsb */ /* 0x03 - register #2022 value 787 msb */ /* 0x13 - register #2022 value lsb */ /* 0x00 - register #2023 value 100 msb */ /* 0x64 - register #2023 value lsb */ tvbuff_t* next_tvb; guint16 size = 0; /* from Modbus TCP/IP spec: number of bytes that follow */ int packet_type; /* differentiate between ECMP query and response */ if (request) { /* read and display the Size */ size = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ecmp_tree, hf_ecmp_modbus_pdu_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* keep packet context */ packet_type = QUERY_PACKET; next_tvb = tvb_new_subset_length(tvb, offset, size); call_dissector_with_data(modbus_handle, next_tvb, pinfo, ecmp_tree, &packet_type); } else { /* read and display the Size */ size = tvb_get_ntohs(tvb, offset); proto_tree_add_item(ecmp_tree, hf_ecmp_modbus_pdu_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; packet_type = RESPONSE_PACKET; next_tvb = tvb_new_subset_length(tvb, offset, size); call_dissector_with_data(modbus_handle, next_tvb, pinfo, ecmp_tree, &packet_type); } } /*a function to dissect "Interrogate" command */ static void interrogate(packet_info* pinfo, int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { /* Description: function to dissect Interrogate command */ /* */ /* Inputs: */ /* offset - current offset of pointer within the ECMP frame */ /* request - (1 = query, 0 = response) */ /* tvb - rather complex structure that has the frame data */ /* ecmp-tree - Wireshark protocol tree */ /* */ /* Returns: nothing */ /* */ /* Notes: for querys, the "offset" points to the "item type". */ /* for responses, the "offset" points to the "item type". */ /* */ /* sample ECMP Request Frame */ /* 0x02 - request code (interrogate) */ /* 0x00 - option terminator */ /* 0x00 - item type (0=ECMP command, 1=ECMP option) <==== offset */ /* 0x05 - count (number of commands/options to follow) */ /* 0x10 - item code #1 ECMP Read command */ /* 0x11 - item code #2 ECMP ReadWithType command */ /* 0x12 - item code #3 ECMP Write command */ /* 0x13 - item code #4 ECMP ObjectInfo command */ /* 0x14 - item code #5 ECMP GetNextObject command */ /* */ /* sample ECMP Response Frame */ /* 0x82 - response code (program control) */ /* 0x00 - option terminator */ /* 0x00 - item type (0=ECMP command, 1=ECMP option) <==== offset */ /* 0x05 - count (number of commands/options to follow) */ /* 0x10 - item code #1 */ /* 0x01 - supported (ECMP Read command) */ /* 0x11 - item code #2 */ /* 0x01 - supported (ECMP ReadWithType command) */ /* 0x12 - item code #3 */ /* 0x01 - supported (ECMP Write command) */ /* 0x13 - item code #4 */ /* 0x01 - supported (ECMP ObjectInfo command) */ /* 0x14 - item code #5 */ /* 0x01 - supported (ECMP GetNextObject command) */ /* */ /* */ /* Item Type: 0 = ECMP command */ /* 1 = ECMP option (not currently implemented) */ /* */ /* Item Code: 0 .. 0x7F for commands */ /* 0 .. 2 for options */ /* */ /* Item Support: 0 = not supported */ /* 1 = supported */ /* */ const guint8 interrogate_type_command = 0; proto_tree* ecmp_interrogate_message_tree = NULL, *ecmp_interrogate_tree; proto_item* ecmp_interrogate_message_item = NULL; guint8 item_type = 0; /* 0=ECMP command, 1=ECMP option */ guint8 command_req = 0; /* ECMP command */ guint8 supported = 0; /* ECMP command support status: 1=supported, 0=not supported */ guint32 count = 0; /* number of ECMP commands to be checked */ guint32 j; /* loop counter */ /* differentiate between ECMP query and response */ if (request) { /* identify the ECMP command we're dissecting */ ecmp_interrogate_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 2, ett_ecmp_interrogate_message, NULL, "Interrogate: (Query)"); /* read the item_type (command/option setting) */ item_type = tvb_get_guint8(tvb, offset); proto_tree_add_item(ecmp_interrogate_tree, hf_ecmp_interrogate_item_type, tvb, offset, 1, ENC_NA); offset += 1; /* read the count */ count = tvb_get_guint8(tvb, offset); proto_tree_add_item(ecmp_interrogate_tree, hf_ecmp_interrogate_count, tvb, offset, 1, ENC_NA); offset += 1; /*create the interrogate details sub-tree */ ecmp_interrogate_message_tree = proto_tree_add_subtree(ecmp_interrogate_tree, tvb, offset, count, ett_ecmp_interrogate_message, &ecmp_interrogate_message_item, "ECMP Commands to be Checked"); /* display the item_codes (commands to be checked) */ if (item_type == interrogate_type_command) { /* loop on the commands */ for (j = 0; j < count; j++) { /* display the commands to be checked */ proto_tree_add_item(ecmp_interrogate_message_tree, hf_ecmp_interrogate_command, tvb, offset, 1, ENC_NA); offset += 1; } proto_item_set_len(ecmp_interrogate_message_item, count); } else { expert_add_info(pinfo, ecmp_interrogate_message_item, &ei_ecmp_options_not_implemented); } } else { /* identify the ECMP command we're dissecting */ ecmp_interrogate_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 2, ett_ecmp_interrogate_message, NULL, "Interrogate: (Response)"); /* read the item_type (command/option setting) */ item_type = tvb_get_guint8(tvb, offset); offset += 1; /* read the count */ count = tvb_get_guint8(tvb, offset); offset += 1; /* display the item_codes (commands to be checked) */ if (item_type == interrogate_type_command) { /*create the interrogate details sub-tree */ ecmp_interrogate_message_tree = proto_tree_add_subtree(ecmp_interrogate_tree, tvb, offset, 1, ett_ecmp_interrogate_message, &ecmp_interrogate_message_item, "ECMP Commands Supported"); /* loop on the commands */ for (j = 0; j < count; j++) { /* get the command code */ command_req = tvb_get_guint8(tvb, offset); offset += 1; /* get the support status */ supported = tvb_get_guint8(tvb, offset); offset += 1; /* display if the command is supported */ proto_tree_add_uint_format(ecmp_interrogate_message_tree, hf_ecmp_interrogate_command, tvb, offset, 1, command_req, "%s: %s", try_val_to_str(command_req, command_vals), try_val_to_str(supported, Interrogate_support_state)); } } else { expert_add_info(pinfo, ecmp_interrogate_message_item, &ei_ecmp_options_not_implemented); } } } static void tunnel_frame(int offset, gboolean request, tvbuff_t *tvb, proto_tree* ecmp_tree) { proto_tree_add_item(ecmp_tree, hf_ecmp_tunnel_control, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ecmp_tree, hf_ecmp_tunnel_start_flag, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ecmp_tree, hf_ecmp_tunnel_end_flag, tvb, offset, 1, ENC_BIG_ENDIAN); /* if a request add the check output flag */ if (request) { proto_tree_add_item(ecmp_tree, hf_ecmp_tunnel_check_output_flag, tvb, offset, 1, ENC_BIG_ENDIAN); } offset+= 1; /* Payload length */ proto_tree_add_item(ecmp_tree, hf_ecmp_tunnel_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset+= 2; proto_tree_add_item(ecmp_tree, hf_ecmp_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA); /*offset = tvb_reported_length(tvb);*/ } /* dissect_ecmp_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) * ----------------------------------------------------------------- * * Purpose: Wireshark dissector for Emerson Control Techniques ECMP protocol * * * Inputs: tvbuff_t *tvb - complex buffer structure holding the packet's bytes * packet_info *pinfo - structure holding information about the packet * proto_tree *tree - pointer to top-level tree (print lines) * * Outputs: none * * * Notes: if tree = NULL, packet capture is running and dissector will only write into the Summary Line (Info Field) * * if tree is non-NULL, packet capture has stopped because a packet has been selected (clicked) * In this case, we will display quite a bit of additional information about the packet. * * * To inspect the frame buffer (very difficult using the *tvb pointer), it's best to add this little debug * code snippet at the top of the program to copy the frame buffer into an array that you can inspect. * * static guint8 jimbuf[512]; // temp buffer for current frame data * static gint lenframe = 0; // num bytes in the frame * static gint j = 0; // loop counter * static gint16 saved_offset = 0; // saves offset for later restoration * * lenframe = tvb_captured_length(tvb); // get the length of the frame * saved_offset = offset; // temporarily save the "offset" * * for (j = 0; j < lenframe; j++) { // loop to copy the frame buffer * jimbuf[j] = tvb_get_guint8(tvb, offset); // Wireshark function to read the frame buffer * offset += 1; * } * offset = saved_offset; // restore the offset * * * Authors: Sarah Bouremoum, Jim Lynch, Luke Orehawa, Others */ static int dissect_ecmp_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { /* Initialize the items and trees*/ proto_item *ecmp_item = NULL; proto_item *ecmp_transaction_id_item = NULL; proto_item *ecmp_chunk_id_item = NULL; proto_tree *ecmp_tree = NULL; /*initialise the values to be used */ guint8 command_value = 0; gboolean request; guint8 transaction_id_value = 0; int offset = 0; /* index used to read data from the buffer*/ gint framelen = 0; /* number of bytes in the frame */ /* note length of the UDP frame */ framelen = tvb_reported_length(tvb); if (framelen < ecmp_min_packet_size) { return 0; } /* this code block processes ECMP TCP messages (most of them) */ col_set_str(pinfo->cinfo, COL_PROTOCOL, PROTO_TAG_ECMP); col_clear(pinfo->cinfo,COL_INFO); /*declaration of variables*/ offset = 4; /*display the first line of the tree (ECMP data)*/ ecmp_item = proto_tree_add_item(tree, proto_ecmp, tvb, 0, -1, ENC_NA); ecmp_tree = proto_item_add_subtree(ecmp_item, ett_ecmp); /* display the information for the destination address */ offset = add_transport_layer_frame(offset, tvb, ecmp_tree, hf_ecmp_destination_address); /* display the information for the source address */ offset = add_transport_layer_frame(offset, tvb, ecmp_tree, hf_ecmp_source_address); /*display the transaction ID*/ ecmp_transaction_id_item = proto_tree_add_item(ecmp_tree, hf_ecmp_transaction_id, tvb, offset, 1, ENC_BIG_ENDIAN ); transaction_id_value = tvb_get_guint8(tvb, offset); if(transaction_id_value == 0) { proto_item_append_text(ecmp_transaction_id_item, "%s", " -> Not initiated by Request"); } offset++; request = ((tvb_get_guint8(tvb, offset+2) & 0x80) == 0); if (request) { /* Calls the function to display the Response size */ offset = get_response_size(offset, tvb, ecmp_tree); /* Calls the function to display the command and request/response */ offset = add_command_codes(pinfo, offset, tvb, ecmp_tree, transaction_id_value, &command_value); /* Calls the function to display the option codes and its data */ offset = add_option_codes(offset, pinfo, tvb, ecmp_tree); /* up til here all code for the request should be the same */ switch(command_value) { case ECMP_COMMAND_IDENTIFY: /*Calls a method to display the attributes and its data */ add_attributes(pinfo, offset, tvb, ecmp_tree, request); break; case ECMP_COMMAND_INFO: /* Info command is just the request code, nothing else to display */ proto_tree_add_item(ecmp_tree, hf_ecmp_info_command, tvb, 0, -1, ENC_NA); /*do nothing, no more data is present */ break; case ECMP_COMMAND_INTERROGATE: interrogate(pinfo, offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_READ: get_parameter_definitions(pinfo, offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_READWITHTYPE: get_parameter_definitions(pinfo, offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_WRITE: get_parameter_definitions(pinfo, offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_OBJECTINFO: get_parameter_definitions(pinfo, offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_GETNEXTOBJECTS: get_parameter_definitions(pinfo, offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEOPEN: file_open(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEREAD: file_read(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEWRITE: file_write(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILECLOSE: file_close(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEINFO: file_info(pinfo, offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEDELETE: file_state_delete(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILESTATE: file_state_delete(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEPOS: file_pos(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILELIST: file_list(pinfo, offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEEXISTS: file_exists(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_CYCLICLINK: cyclic_setup(pinfo, offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_PROGRAMCONTROL: program_control(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_PROGRAMSTATUS: program_status(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_CYCLICFRAME: add_cyclic_frame_query(offset, tvb, ecmp_tree); break; case ECMP_COMMAND_TUNNELFRAME: tunnel_frame(offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_MODBUSPDU: modbus_pdu(offset, request, tvb, pinfo, ecmp_tree); break; default: proto_tree_add_expert(ecmp_tree, pinfo, &ei_ecmp_unknown_command, tvb, 0, -1); break; } /* END of code to be modified */ } else { guint8 chunk_id_value = 0; gint8 status_value = 0; status_value = (gint8)tvb_get_guint8(tvb, offset); /*stores a signed value for status */ proto_tree_add_item(ecmp_tree, hf_ecmp_status, tvb, offset, 1, ENC_BIG_ENDIAN); if (status_value >= 0) { offset++; chunk_id_value = tvb_get_guint8(tvb, offset); ecmp_chunk_id_item = proto_tree_add_item(ecmp_tree, hf_ecmp_chunk_id, tvb, offset, 1, ENC_BIG_ENDIAN); if(chunk_id_value == 0) { proto_item_append_text(ecmp_chunk_id_item, "%s", " -> Response is NOT Chunked"); } offset++; /* Calls the function to display the option codes */ offset = add_command_codes(pinfo, offset, tvb, ecmp_tree, transaction_id_value, &command_value); if ((status_value == 0) || (status_value == 1)) { /* Calls a method to display option codes */ offset = add_option_codes(offset, pinfo, tvb, ecmp_tree); /* up til here all code for the response should be the same */ switch(command_value) { case ECMP_COMMAND_IDENTIFY: /*Call a method to add category data */ offset = add_category_codes(offset, tvb, ecmp_tree); /*Call a method to add attributes */ add_attributes(pinfo, offset, tvb, ecmp_tree, request); break; case ECMP_COMMAND_INFO: add_info_response(offset, tvb, ecmp_tree); break; case ECMP_COMMAND_INTERROGATE: interrogate(pinfo, offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_READ: get_parameter_responses(pinfo, offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_READWITHTYPE: get_parameter_responses(pinfo, offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_WRITE: get_parameter_responses(pinfo, offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_OBJECTINFO: get_object_info_response(pinfo, offset, tvb, ecmp_tree); break; case ECMP_COMMAND_GETNEXTOBJECTS: get_parameter_responses(pinfo, offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEOPEN: file_open(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEREAD: file_read(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEWRITE: file_write(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILECLOSE: file_close(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEINFO: file_info(pinfo, offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEDELETE: file_state_delete(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILESTATE: file_state_delete(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEPOS: file_pos(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILELIST: file_list(pinfo, offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_FILEEXISTS: file_exists(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_CYCLICLINK: cyclic_setup(pinfo, offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_PROGRAMCONTROL: program_control(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_PROGRAMSTATUS: program_status(offset, request, tvb, ecmp_tree); break; case ECMP_COMMAND_CYCLICFRAME: add_cyclic_frame(offset, tvb, ecmp_tree); break; case ECMP_COMMAND_TUNNELFRAME: tunnel_frame(offset, command_value, tvb, ecmp_tree); break; case ECMP_COMMAND_MODBUSPDU: modbus_pdu(offset, request, tvb, pinfo, ecmp_tree); break; default: proto_tree_add_expert(ecmp_tree, pinfo, &ei_ecmp_unknown_command, tvb, 0, -1); break; } /********************************* END of code to be modified ***********************************/ } } } return framelen; } /* this code block processes ECMP UDP messages (cyclic data) */ static int dissect_ecmp_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { proto_item *ecmp_item = NULL; proto_tree *ecmp_tree = NULL; proto_tree *ecmp_cyclic_data_32_bit_display_tree = NULL; proto_tree *ecmp_cyclic_data_16_bit_display_tree = NULL; proto_tree *ecmp_cyclic_data_8_bit_display_tree = NULL; guint8 command_value = 0; guint8 type_value = 0; guint8 transaction_id_value = 0; guint16 offset = 0; /* index used to read data from the buffer*/ gint framelen = 0; /* number of bytes in the frame */ guint8 scheme = 0; /* 0=no scheme, 1=grandmaster setup */ /* note length of the UDP frame */ framelen = tvb_reported_length(tvb); if (framelen < ecmp_min_packet_size) { return 0; } /* display the "ECMP" protocol indication in the PROTOCOL field */ col_set_str(pinfo->cinfo, COL_PROTOCOL, PROTO_TAG_ECMP); /* Clear out stuff in the info column */ col_clear(pinfo->cinfo,COL_INFO); /* adjust offset to point at transaction ID */ offset += 2; /*getting the information from the buffer*/ transaction_id_value = tvb_get_guint8(tvb, offset); /* adjust offset to point at ECMP query/response code */ offset += 3; /* calculate if it's a query or response (type_r_r) */ type_value = tvb_get_guint8(tvb, offset); /* determine the ECMP command code */ command_value = type_value & 0x7f; /* update offset to point to cyclic link number */ offset += 2; /* Information displayed in the Info column*/ col_add_fstr(pinfo->cinfo, COL_INFO, "%s, %s. Transaction ID: %d", val_to_str(command_value, command_vals, "Unknown Type:0x%02x"), val_to_str((type_value & 0x80) >> 7, type_rr, "Unknown Type:0x%02x"), transaction_id_value); /*display the first line of the tree (ECMP data)*/ ecmp_item = proto_tree_add_item(tree, proto_ecmp, tvb, 0, -1, ENC_NA); /*item created*/ ecmp_tree = proto_item_add_subtree(ecmp_item, ett_ecmp); /*tree created*/ /* indicate cyclic link message */ proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_link_req_resp, tvb, offset, 1, ENC_BIG_ENDIAN); /* display the cyclic link number */ proto_tree_add_item(ecmp_tree, hf_ecmp_cyclic_link_number_display, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; if (type_value & 0x80) { /* response data handled here */ /* display the alignment */ proto_tree_add_item(ecmp_tree, hf_ecmp_udp_alignment, tvb, offset, 1, ENC_NA); offset += 1; /* display the scheme */ scheme = tvb_get_guint8(tvb, offset); proto_tree_add_item(ecmp_tree, hf_ecmp_udp_scheme, tvb, offset, 1, ENC_NA); offset += 1; /* if the scheme is 1, there is grandmaster data to be printed */ if (scheme == 1) { proto_tree_add_item(ecmp_tree, hf_ecmp_grandmaster, tvb, offset, 8, ENC_BIG_ENDIAN); offset += 8; proto_tree_add_item(ecmp_tree, hf_ecmp_process_time, tvb, offset, 8, ENC_BIG_ENDIAN); offset += 8; } /* create the Cyclic Data Display (guint32 format) sub-tree */ ecmp_cyclic_data_32_bit_display_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 2, ett_ecmp_cyclic_data_32_bit_display, NULL, "Cyclic Data (32-bit hex unsigned format): "); /* display the raw hex data for the cyclic data in a 32-bit format */ display_raw_cyclic_data(cyclic_display_long_format, offset, framelen - offset, tvb, ecmp_cyclic_data_32_bit_display_tree); /* create the Cyclic Data Display (guint16 format) sub-tree */ ecmp_cyclic_data_16_bit_display_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 2, ett_ecmp_cyclic_data_16_bit_display, NULL, "Cyclic Data (16-bit hex unsigned format): "); /* display the raw hex data for the cyclic data in a 16-bit format */ display_raw_cyclic_data(cyclic_display_word_format, offset, framelen - offset, tvb, ecmp_cyclic_data_16_bit_display_tree); /* display the raw hex data for the cyclic data in a guint8 format */ ecmp_cyclic_data_8_bit_display_tree = proto_tree_add_subtree(ecmp_tree, tvb, offset, 2, ett_ecmp_cyclic_data_8_bit_display, NULL, "Cyclic Data (8-bit hex unsigned format): "); /* display the raw hex data for the cyclic data in 8-bit format */ display_raw_cyclic_data(cyclic_display_byte_format, offset, framelen - offset, tvb, ecmp_cyclic_data_8_bit_display_tree); } return tvb_reported_length(tvb); } /* Function to register the protcol*/ /* Wireshark literally scans this file (packet-ecmp.c) to find this function */ /* note: this function MUST start in column 1, due to the scanning mentioned above */ void proto_register_ecmp (void) { /* A header field is something you can search/filter on. * * We create a structure to register our fields. It consists of an * array of hf_register_info structures, each of which are of the format * {&(field id), {name, abbrev, type, display, strings, bitmask, blurb, HFILL}}. */ static hf_register_info hf[] = { { &hf_ecmp_destination_address, { "Destination Address scheme", "ecmp.destination_address", FT_UINT8, BASE_DEC, VALS(address_scheme), 0, NULL, HFILL }}, { &hf_ecmp_source_address, { "Source Address scheme", "ecmp.source_address", FT_UINT8, BASE_DEC, VALS(address_scheme), 0, NULL, HFILL }}, { &hf_ecmp_diagnostic, { "Diagnostic group", "ecmp.diagnostic", FT_UINT8, BASE_DEC, VALS(diagnostic), 0, NULL, HFILL }}, { &hf_ecmp_command, { "Command", "ecmp.command", FT_UINT8, BASE_DEC, VALS(command_vals), 0x7F, NULL, HFILL }}, { &hf_ecmp_option, { "Option", "ecmp.option", FT_UINT8, BASE_DEC, VALS(option_code), 0x0, NULL, HFILL }}, { &hf_ecmp_type_rr, { "Type", "ecmp.type", FT_UINT8, BASE_DEC, VALS(type_rr), 0x80, "ECMP Type (request/response)", HFILL }}, { &hf_ecmp_chunking, { "Chunks allowed","ecmp.chunking", FT_UINT16, BASE_DEC, NULL,0xF000, "ECMP number of chunks allowed", HFILL}}, { &hf_ecmp_max_response_size, { "Maximum Response Size","ecmp.response_size", FT_UINT16, BASE_DEC, NULL,0x0FFF, NULL, HFILL}}, { &hf_ecmp_category, { "Device", "ecmp.category", FT_UINT8, BASE_DEC, VALS(category), 0x0, "ECMP Category (drive or option module)", HFILL }}, { &hf_ecmp_attribute, { "Attribute", "ecmp.attribute", FT_UINT8, BASE_DEC, VALS(attribute), 0x0, NULL, HFILL }}, { &hf_ecmp_no_of_attributes, { "Number of attributes", "ecmp.attribute_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_status, { "Status", "ecmp.status", FT_INT8, BASE_DEC, VALS(status), 0x0, NULL, HFILL }}, { &hf_ecmp_chunk_id, { "Chunk ID", "ecmp.chunkID", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_transaction_id, { "Transaction ID", "ecmp.transactionID", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_drive_type, { "Product Type", "ecmp.drive_type", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_drive_derivative, { "Drive Derivative", "ecmp.drive_derivative", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_drive_factory_fit_category_id, { "Factory Fitted Option ID", "ecmp.drive_factory_fit_category_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_category_id, { "Option ID", "ecmp.category_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_cyclic_link_num, { "Cyclic Link Number", "ecmp.link_num", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_cyclic_align, { "Alignment", "ecmp.cyclic_align", FT_UINT8, BASE_DEC, VALS(cyclic_align), 0x0, "ECMP Cyclic Data Alignment", HFILL }}, { &hf_ecmp_cyclic_scheme, { "Scheme", "ecmp.cyclic_scheme", FT_UINT8, BASE_DEC, VALS(cyclic_scheme), 0x0, "ECMP Cyclic Scheme", HFILL }}, { &hf_ecmp_cyclic_link_number_display, { "Cyclic Link Number Display", "ecmp.link_num_display", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_buffer_size, {"Buffer Size", "ecmp.buffer_size", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_ecmp_max_response, {"Maximum Response Time", "ecmp.max_response", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_ecmp_max_handle, {"Maximum Handle Period", "ecmp.max_handle", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_ecmp_info_address, {"Number of Default Route Addresses", "ecmp.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_ecmp_parameter_address, {"Parameter Addressing Scheme", "ecmp.parameter.address", FT_UINT8, BASE_DEC, VALS(parameter_address_scheme), 0x0, NULL, HFILL}}, { &hf_ecmp_number_of_parameter_definitions, {"Number of Parameter Definitions", "ecmp.parameter.definitions", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_ecmp_number_of_parameter_responses, {"Number of Parameter Responses", "ecmp.parameter.response", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_ecmp_parameter_status, {"Parameter Status", "ecmp.parameter.status", FT_INT8, BASE_DEC, VALS(parameter_access_status), 0x0, NULL, HFILL}}, { &hf_ecmp_data_type, {"Parameter Data Type", "ecmp.parameter.data_type", FT_UINT8, BASE_DEC, VALS(parameter_data_types), 0x0, NULL, HFILL}}, { &hf_ecmp_info_type, {"Info Type", "ecmp.info_type", FT_UINT8, BASE_DEC, VALS(info_type), 0x0, NULL, HFILL}}, { &hf_ecmp_file_status, {"File Status", "ecmp.file.status", FT_INT8, BASE_DEC, VALS(file_status), 0x0, NULL, HFILL}}, { &hf_ecmp_file_handle, {"File Handle", "ecmp.file.handle", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_ecmp_file_attributes, {"Attribute", "ecmp.file.attribute", FT_UINT8, BASE_DEC, VALS(file_attributes), 0x0, "File attributes", HFILL}}, { &hf_ecmp_file_ref_point, {"Reference Point", "ecmp.file.reference", FT_UINT8, BASE_DEC, VALS(file_ref_point), 0x0, "File reference points", HFILL}}, { &hf_ecmp_tunnel_control, {"Control", "ecmp.tunnel_control", FT_UINT8, BASE_DEC, NULL, 0x0, "Tunnel frame control field", HFILL}}, { &hf_ecmp_tunnel_start_flag, {"Start", "ecmp.tunnel_control.start", FT_BOOLEAN, 8, NULL, TUNNEL_START_FLAG, "Tunnel frame control field start flag", HFILL}}, { &hf_ecmp_tunnel_end_flag, {"End", "ecmp.tunnel_control.end", FT_BOOLEAN, 8, NULL, TUNNEL_END_FLAG, "Tunnel frame control field end flag", HFILL}}, { &hf_ecmp_tunnel_check_output_flag, {"Check Output", "ecmp.tunnel_control.check", FT_BOOLEAN, 8, NULL, TUNNEL_CHECK_OUTPUT_FLAG, "Tunnel frame control field check output flag", HFILL}}, { &hf_ecmp_tunnel_size, {"Size", "ecmp.tunnel_size", FT_UINT16, BASE_DEC, NULL, 0x0, "Tunnel frame payload size", HFILL}}, { &hf_ecmp_cyclic_setup_mode, {"Mode", "ecmp.cyclic_setup.mode", FT_UINT8, BASE_DEC, VALS(cyclic_setup_mode), 0x0, "Cyclic setup mode", HFILL}}, { &hf_ecmp_cyclic_setup_linkno, {"Link No", "ecmp.cyclic_setup.linkno", FT_UINT8, BASE_DEC, NULL, 0x0, "Cyclic setup link no", HFILL}}, { &hf_ecmp_cyclic_setup_dir, {"Direction", "ecmp.cyclic_setup.direction", FT_UINT8, BASE_DEC, VALS(cyclic_setup_link_dir), 0x0, "Cyclic setup link direction", HFILL}}, { &hf_ecmp_cyclic_setup_attrib_count, {"Count", "ecmp.cyclic_setup.attrib_count", FT_UINT8, BASE_DEC, NULL, 0x0, "Cyclic setup attribute count", HFILL}}, { &hf_ecmp_cyclic_setup_attrib, {"Attribute", "ecmp.cyclic_setup.attrib", FT_UINT8, BASE_DEC, VALS(cyclic_attributes), 0x0, "Cyclic setup attribute", HFILL}}, { &hf_ecmp_cyclic_setup_rsp_status, {"Status", "ecmp.cyclic_setup.rsp_status", FT_INT8, BASE_DEC, NULL, 0x0, "Cyclic setup status", HFILL}}, { &hf_ecmp_cyclic_setup_rsp_err_idx, {"Error Index", "ecmp.cyclic_setup.rsp_err_idx", FT_UINT8, BASE_DEC, NULL, 0x0, "Cyclic setup error index", HFILL}}, { &hf_ecmp_cyclic_setup_link_exists, {"Existence State", "ecmp.cyclic_setup.exists.state", FT_UINT8, BASE_DEC, VALS(cyclic_setup_link_exists), 0x0, "Cyclic setup exists state", HFILL}}, { &hf_ecmp_cyclic_link_req_resp, {"Cyclic Link - Request-Response", "ecmp.cyclic_link.request.response", FT_UINT8, BASE_DEC, VALS(cyclic_link_req_resp), 0x0, "Cyclic link request - response", HFILL}}, { &hf_ecmp_attribute_string, { "Attribute string", "ecmp.attribute_string", FT_UINT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_file_name, { "File name", "ecmp.file_name", FT_UINT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_directory, { "Directory", "ecmp.directory", FT_UINT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_names_scheme, { "Names Scheme", "ecmp.names_scheme", FT_UINT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_variable_name, { "Variable name", "ecmp.variable_name", FT_UINT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_unit_id_string, { "Unit ID String", "ecmp.unit_id_string", FT_UINT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_ecmp_string, { "ECMP string", "ecmp.ecmp_string", FT_UINT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_info_command, { "Info command data", "ecmp.info_command", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_process_time, { "ProcessAt time", "ecmp.processat_time", FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_cyclic_frame_time, { "Cyclic frame time", "ecmp.cyclic_frame_time", FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_grandmaster, { "Grandmaster", "ecmp.grandmaster", FT_EUI64, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data, { "Data", "ecmp.data", FT_BYTES, SEP_SPACE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_response_data, { "Response Data", "ecmp.response_data", FT_BYTES, SEP_SPACE, NULL, 0x0, NULL, HFILL }}, /* Generated from convert_proto_tree_add_text.pl */ { &hf_ecmp_physical_address, { "Physical address", "ecmp.physical_address", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL }}, { &hf_ecmp_logical_address, { "Logical address", "ecmp.logical_address", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL }}, { &hf_ecmp_primary_colour, { "Primary Colour", "ecmp.primary_colour", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_secondary_colour, { "Secondary Colour", "ecmp.secondary_colour", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_number_of_subsequent_object_requests, { "Number of subsequent object requests", "ecmp.number_of_subsequent_object_requests", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_number_of_decimal_places, { "Number of decimal places", "ecmp.number_of_decimal_places", FT_INT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_no_information_available, { "No Information available", "ecmp.no_information_available", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_param_format_bit_default_unipolar, { "BU- Bit default/Unipolar", "ecmp.param_format.bit_default_unipolar", FT_UINT32, BASE_DEC, NULL, 0x00000001, NULL, HFILL }}, { &hf_ecmp_param_format_write_allowed, { "W- Write allowed", "ecmp.param_format.write_allowed", FT_UINT32, BASE_DEC, NULL, 0x00000002, NULL, HFILL }}, { &hf_ecmp_param_format_read_not_allowed, { "NR- Read not allowed", "ecmp.param_format.read_not_allowed", FT_UINT32, BASE_DEC, NULL, 0x00000004, NULL, HFILL }}, { &hf_ecmp_param_format_protected_from_destinations, { "PT- Protected from destinations", "ecmp.param_format.protected_from_destinations", FT_UINT32, BASE_DEC, NULL, 0x00000008, NULL, HFILL }}, { &hf_ecmp_param_format_parameter_not_visible, { "NV- Parameter not visible", "ecmp.param_format.parameter_not_visible", FT_UINT32, BASE_DEC, NULL, 0x00000010, NULL, HFILL }}, { &hf_ecmp_param_format_not_clonable, { "NC- Not clonable", "ecmp.param_format.not_clonable", FT_UINT32, BASE_DEC, NULL, 0x00000020, NULL, HFILL }}, { &hf_ecmp_param_format_voltage_or_current_rating_dependant, { "RA- Voltage or current rating dependant", "ecmp.param_format.voltage_or_current_rating_dependant", FT_UINT32, BASE_DEC, NULL, 0x00000040, NULL, HFILL }}, { &hf_ecmp_param_format_parameter_has_no_default, { "ND- Parameter has no default", "ecmp.param_format.parameter_has_no_default", FT_UINT32, BASE_DEC, NULL, 0x00000080, NULL, HFILL }}, { &hf_ecmp_param_format_number_of_decimal_places, { "DP- Number of Decimal places", "ecmp.param_format.number_of_decimal_places", FT_UINT32, BASE_DEC, NULL, 0x00000F00, NULL, HFILL }}, { &hf_ecmp_param_format_variable_maximum_and_minimum, { "VM- Variable maximum and minimum", "ecmp.param_format.variable_maximum_and_minimum", FT_UINT32, BASE_DEC, NULL, 0x00001000, NULL, HFILL }}, { &hf_ecmp_param_format_string_parameter, { "TE- String parameter", "ecmp.param_format.string_parameter", FT_UINT32, BASE_DEC, NULL, 0x00002000, NULL, HFILL }}, { &hf_ecmp_param_format_desitination_set_up_parameter, { "DE- Desitination set-up parameter", "ecmp.param_format.desitination_set_up_parameter", FT_UINT32, BASE_DEC, NULL, 0x00004000, NULL, HFILL }}, { &hf_ecmp_param_format_filtered_when_displayed, { "FI- Filtered when displayed", "ecmp.param_format.filtered_when_displayed", FT_UINT32, BASE_DEC, NULL, 0x00008000, NULL, HFILL }}, { &hf_ecmp_param_format_pseudo_read_only, { "PR- Pseudo read only", "ecmp.param_format.pseudo_read_only", FT_UINT32, BASE_DEC, NULL, 0x00010000, NULL, HFILL }}, { &hf_ecmp_param_format_display_format, { "DF- Display Format", "ecmp.param_format.display_format", FT_UINT32, BASE_DEC, VALS(display_format), 0x001E0000, NULL, HFILL }}, { &hf_ecmp_param_format_floating_point_value, { "FL- Floating point value", "ecmp.param_format.floating_point_value", FT_UINT32, BASE_DEC, NULL, 0x00200000, NULL, HFILL }}, { &hf_ecmp_param_format_units, { "UNITS", "ecmp.param_format.units", FT_UINT32, BASE_DEC, VALS(format_units), 0x0FC00000, NULL, HFILL }}, { &hf_ecmp_string_id, { "String ID", "ecmp.string_id", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_address_scheme_menu, { "Menu", "ecmp.address_scheme.menu", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_address_scheme_parameter, { "Parameter", "ecmp.address_scheme.parameter", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_address_scheme_slot, { "Slot", "ecmp.address_scheme.slot", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_address_scheme_null_byte_size, { "NULL byte size", "ecmp.address_scheme.null_byte_size", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_display_unit_id, { "Unit ID", "ecmp.display_unit_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data_boolean, { "Data", "ecmp.data.boolean", FT_UINT8, BASE_DEC, NULL, 0x01, NULL, HFILL }}, { &hf_ecmp_data_int8, { "Data", "ecmp.data.int8", FT_INT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data_uint8, { "Data", "ecmp.data.uint8", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data_int16, { "Data", "ecmp.data.int16", FT_INT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data_uint16, { "Data", "ecmp.data.uint16", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data_int32, { "Data", "ecmp.data.int32", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data_uint32, { "Data", "ecmp.data.uint32", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data_int64, { "Data", "ecmp.data.int64", FT_INT64, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data_uint64, { "Data", "ecmp.data.uint64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data_float, { "Data", "ecmp.data.float", FT_FLOAT, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_data_double, { "Data", "ecmp.data.double", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_access_mode, { "Access Mode", "ecmp.access_mode", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_open_in_non_blocking_mode, { "Open in non-blocking mode", "ecmp.open_in_non_blocking_mode", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL }}, { &hf_ecmp_open_file_relative_to_specified_directory_handle, { "Open file relative to specified directory handle", "ecmp.open_file_relative_to_specified_directory_handle", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL }}, { &hf_ecmp_file_access_mode, { "File Access Mode", "ecmp.file_access_mode", FT_UINT8, BASE_DEC, VALS(file_status_mode), 0x0F, NULL, HFILL }}, { &hf_ecmp_additional_scheme, { "Additional Scheme", "ecmp.additional_scheme", FT_UINT8, BASE_DEC, VALS(additional_scheme_vals), 0x0, NULL, HFILL }}, { &hf_ecmp_scheme_data_length, { "Length", "ecmp.scheme_data_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_number_of_requested_bytes, { "Number of requested bytes", "ecmp.number_of_requested_bytes", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_number_of_bytes_transferred, { "Number of bytes transferred", "ecmp.number_of_bytes_transferred", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_crc, { "CRC", "ecmp.crc", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_ref_offset, { "Offset", "ecmp.ref_offset", FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_number_of_files_to_list, { "Number of files to list", "ecmp.number_of_files_to_list", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_file_hash, { "Hash", "ecmp.file_hash", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_item_type, { "Item type", "ecmp.item_type", FT_UINT8, BASE_DEC, VALS(item_type_vals), 0x0, NULL, HFILL }}, { &hf_ecmp_file_integrity, { "File Integrity", "ecmp.file_integrity", FT_UINT8, BASE_DEC, VALS(file_integrity_vals), 0x01, NULL, HFILL }}, { &hf_ecmp_display_attr_read_only, { "Read Only", "ecmp.display_attr.read_only", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL }}, { &hf_ecmp_display_attr_hidden, { "Hidden", "ecmp.display_attr.hidden", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL }}, { &hf_ecmp_display_attr_system, { "System", "ecmp.display_attr.system", FT_BOOLEAN, 8, NULL, 0x04, NULL, HFILL }}, { &hf_ecmp_display_attr_volume_label, { "Volume Label", "ecmp.display_attr.volume_label", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL }}, { &hf_ecmp_display_attr_subdirectory, { "Subdirectory", "ecmp.display_attr.subdirectory", FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL }}, { &hf_ecmp_display_attr_archive, { "Archive", "ecmp.display_attr.archive", FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL }}, { &hf_ecmp_display_creation, { "Display creation", "ecmp.display_creation", FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_display_modification, { "Display modification", "ecmp.display_modification", FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_interrogate_item_type, { "Item Type", "ecmp.interrogate_item_type", FT_UINT8, BASE_DEC, VALS(Interrogate_command_option_state), 0x0, NULL, HFILL }}, { &hf_ecmp_interrogate_count, { "Count", "ecmp.interrogate_count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_modbus_pdu_size, { "Size", "ecmp.modbus_pdu_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, #if 0 { &hf_ecmp_destination_scheme, { "Destination Scheme", "ecmp.destination_scheme", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, #endif { &hf_ecmp_program_control_target, { "Target", "ecmp.program_control_target", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_program_control_command, { "Command", "ecmp.program_control_command", FT_UINT8, BASE_DEC, VALS(command_code_list), 0x0, NULL, HFILL }}, { &hf_ecmp_program_control_sub_command, { "Sub-Command", "ecmp.program_control_sub_command", FT_UINT8, BASE_DEC, VALS(sub_command_code_list), 0x0, NULL, HFILL }}, { &hf_ecmp_program_control_status, { "Status", "ecmp.program_control_status", FT_UINT8, BASE_DEC, VALS(status_list), 0x0, NULL, HFILL }}, { &hf_ecmp_program_status_target, { "Target", "ecmp.program_status_target", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_program_status_status, { "Status", "ecmp.program_status_status", FT_UINT8, BASE_DEC, VALS(running_state_list), 0x0, NULL, HFILL }}, { &hf_ecmp_program_status_additional_items, { "Additional Items", "ecmp.program_status_additional_items", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_cyclic_setup_max_mappings, { "Max Mappings", "ecmp.cyclic_setup.max_mappings", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_cyclic_setup_start_offset, { "Start Offset", "ecmp.cyclic_setup.start_offset", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_cyclic_setup_tx_count, { "Tx Count", "ecmp.cyclic_setup.tx_count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_cyclic_setup_rx_count, { "Rx Count", "ecmp.cyclic_setup.rx_count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_udp_alignment, { "Alignment", "ecmp.udp_alignment", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_udp_scheme, { "Scheme", "ecmp.udp_scheme", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_cyclic_data, { "Cyclic Data", "ecmp.cyclic_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_version_summary, { "Version summary", "ecmp.version_summary", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_min_param_menu, { "Min parameter in menu", "ecmp.min_param_menu", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_max_param_menu, { "Max parameter in menu", "ecmp.max_param_menu", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_file_length, { "File length", "ecmp.file_length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_mec_offset, { "mec_offset", "ecmp.mec_offset", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_sample_period, { "Sample period", "ecmp.sample_period", FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_rx_timeout, { "RX Timeout", "ecmp.rx_timeout", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_rx_action, { "Action", "ecmp.rx_action", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_rx_event_destination, { "Event Destination", "ecmp.rx_event_destination", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_rx_event, { "Event", "ecmp.rx_event", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_rx_late_handler_action, { "Action", "ecmp.rx_late_handler_action", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_rx_late_handler_event_destination, { "Event Destination", "ecmp.rx_late_handler_event_destination", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_rx_late_handler_event, { "Event", "ecmp.rx_late_handler_event", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_transport_addr_scheme, { "Scheme", "ecmp.transport_addr_scheme", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_transport_addr, { "Transport address", "ecmp.transport_addr", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_mapping_item_offset, { "Offset", "ecmp.mapping_item_offset", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_mapping_item_scheme, { "Scheme", "ecmp.mapping_item_scheme", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_setup_attribute, { "Attribute", "ecmp.setup_attribute", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_mec_period, { "mec period", "ecmp.mec_period", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, { &hf_ecmp_interrogate_command, { "Command", "ecmp.interrogate_command", FT_UINT8, BASE_DEC, VALS(command_vals), 0x0, NULL, HFILL }} }; /* array to store pointers to the ids of the subtrees that we may be creating */ static gint *ett[] = { &ett_ecmp, &ett_ecmp_address, &ett_ecmp_response_size, &ett_ecmp_command, &ett_ecmp_category, &ett_ecmp_option, &ett_ecmp_option_data, &ett_ecmp_attribute, &ett_ecmp_attribute_data, &ett_ecmp_cyclic_scheme, &ett_ecmp_interrogate_message, &ett_ecmp_info_type, &ett_ecmp_info_count, &ett_ecmp_param_address, &ett_ecmp_access_mode, &ett_ecmp_access_file, &ett_ecmp_file_read, &ett_ecmp_file_write, &ett_ecmp_file_info, &ett_ecmp_file_info_att, &ett_ecmp_file_position, &ett_ecmp_file_list_no, &ett_ecmp_file_list, &ett_ecmp_tunnel_3s_goodframe, &ett_ecmp_tunnel_3s_size, &ett_ecmp_tunnel_3s_service, &ett_cyclic_setup_attribs, &ett_cyclic_setup_transport_addr, &ett_cyclic_setup_attrib_item, &ett_ecmp_cyclic_data_32_bit_display, &ett_ecmp_cyclic_data_16_bit_display, &ett_ecmp_cyclic_data_8_bit_display, &ett_ecmp_modbus_pdu_message, &ett_ecmp_program_control_message, &ett_ecmp_program_status_message }; static ei_register_info ei[] = { { &ei_ecmp_unknown_command, { "ecmp.unknown_command", PI_PROTOCOL, PI_WARN, "Unknown Command", EXPFILL }}, { &ei_ecmp_color, { "ecmp.color_invalid", PI_PROTOCOL, PI_WARN, "Invalid color data value", EXPFILL }}, { &ei_ecmp_option, { "ecmp.ecmp_option.unknown", PI_PROTOCOL, PI_WARN, "ERROR - Unrecognised Option Code", EXPFILL }}, { &ei_ecmp_data_type, { "ecmp.data_type.unknown", PI_PROTOCOL, PI_WARN, "Unknown Data Type", EXPFILL }}, { &ei_ecmp_parameter_addressing_scheme, { "ecmp.incorrect_parameter_addressing_scheme", PI_PROTOCOL, PI_WARN, "Incorrect parameter addressing scheme", EXPFILL }}, { &ei_ecmp_info_type, { "ecmp.info_type.unknown", PI_PROTOCOL, PI_WARN, "Unknown info type", EXPFILL }}, { &ei_ecmp_attribute_type, { "ecmp.attribute_type.unknown", PI_PROTOCOL, PI_WARN, "Wrong attribute type", EXPFILL }}, { &ei_ecmp_item_type, { "ecmp.item_type.unknown", PI_PROTOCOL, PI_WARN, "Unknown item type", EXPFILL }}, { &ei_ecmp_options_not_implemented, { "ecmp.options_not_implemented", PI_UNDECODED, PI_WARN, "ECMP Options Not Implemented", EXPFILL }} }; expert_module_t* expert_ecmp; proto_ecmp = proto_register_protocol ("ECMP", PROTO_TAG_ECMP, "ecmp"); /* full name short name and abbreviation (display filter name)*/ proto_register_field_array(proto_ecmp, hf, array_length (hf)); proto_register_subtree_array (ett, array_length (ett)); expert_ecmp = expert_register_protocol(proto_ecmp); expert_register_field_array(expert_ecmp, ei, array_length(ei)); } /* Function to initialise the dissector*/ /* Wireshark literally scans this file (packet-ecmp.c) to find this function */ void proto_reg_handoff_ecmp(void) { static gboolean initialized = FALSE; static dissector_handle_t ecmp_tcp_handle, ecmp_udp_handle; if (!initialized) { ecmp_tcp_handle = create_dissector_handle(dissect_ecmp_tcp, proto_ecmp); ecmp_udp_handle = create_dissector_handle(dissect_ecmp_udp, proto_ecmp); /* Cyclic frames are over UDP and non-cyclic are over TCP */ dissector_add_uint("udp.port", global_ecmp_port, ecmp_udp_handle); dissector_add_uint("tcp.port", global_ecmp_port, ecmp_tcp_handle); initialized = TRUE; } /* Modbus dissector hooks */ modbus_handle = find_dissector("modbus"); proto_modbus = proto_get_id_by_filter_name( "modbus" ); } /* * Editor modelines - http://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 8 * tab-width: 8 * indent-tabs-mode: t * End: * * vi: set shiftwidth=8 tabstop=8 noexpandtab: * :indentSize=8:tabSize=8:noTabs=false: */