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Eurex/Eurex.Derivatives.Eti.T7.v1.0.Script.Dissector.lua
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,327 @@ | ||
| ----------------------------------------------------------------------- | ||
| -- Lua Script Wireshark Dissector | ||
| -- | ||
| -- Please see end of file for rules and regulations | ||
| ----------------------------------------------------------------------- | ||
|
|
||
| -- Eurex Derivatives Eti T7 1.0 Protocol | ||
| local eurex_derivatives_eti_t7_v1_0 = Proto("Eurex.Derivatives.Eti.T7.v1.0.Lua", "Eurex Derivatives Eti T7 1.0") | ||
|
|
||
| -- Component Tables | ||
| local show = {} | ||
| local format = {} | ||
| local eurex_derivatives_eti_t7_v1_0_display = {} | ||
| local eurex_derivatives_eti_t7_v1_0_dissect = {} | ||
| local eurex_derivatives_eti_t7_v1_0_size_of = {} | ||
| local verify = {} | ||
|
|
||
| ----------------------------------------------------------------------- | ||
| -- Declare Protocol Fields | ||
| ----------------------------------------------------------------------- | ||
|
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| -- Eurex Derivatives Eti T7 1.0 Fields | ||
| eurex_derivatives_eti_t7_v1_0.fields.body_len = ProtoField.new("Body Len", "eurex.derivatives.eti.t7.v1.0.bodylen", ftypes.UINT32) | ||
| eurex_derivatives_eti_t7_v1_0.fields.message = ProtoField.new("Message", "eurex.derivatives.eti.t7.v1.0.message", ftypes.STRING) | ||
| eurex_derivatives_eti_t7_v1_0.fields.message_header = ProtoField.new("Message Header", "eurex.derivatives.eti.t7.v1.0.messageheader", ftypes.STRING) | ||
| eurex_derivatives_eti_t7_v1_0.fields.packet = ProtoField.new("Packet", "eurex.derivatives.eti.t7.v1.0.packet", ftypes.STRING) | ||
| eurex_derivatives_eti_t7_v1_0.fields.payload = ProtoField.new("Payload", "eurex.derivatives.eti.t7.v1.0.payload", ftypes.BYTES) | ||
| eurex_derivatives_eti_t7_v1_0.fields.template_id = ProtoField.new("Template Id", "eurex.derivatives.eti.t7.v1.0.templateid", ftypes.UINT16) | ||
|
|
||
| ----------------------------------------------------------------------- | ||
| -- Declare Dissection Options | ||
| ----------------------------------------------------------------------- | ||
|
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||
| -- Eurex Derivatives Eti T7 1.0 Element Dissection Options | ||
| show.message = true | ||
| show.message_header = true | ||
| show.packet = true | ||
|
|
||
| -- Register Eurex Derivatives Eti T7 1.0 Show Options | ||
| eurex_derivatives_eti_t7_v1_0.prefs.show_message = Pref.bool("Show Message", show.message, "Parse and add Message to protocol tree") | ||
| eurex_derivatives_eti_t7_v1_0.prefs.show_message_header = Pref.bool("Show Message Header", show.message_header, "Parse and add Message Header to protocol tree") | ||
| eurex_derivatives_eti_t7_v1_0.prefs.show_packet = Pref.bool("Show Packet", show.packet, "Parse and add Packet to protocol tree") | ||
|
|
||
| -- Handle changed preferences | ||
| function eurex_derivatives_eti_t7_v1_0.prefs_changed() | ||
| local changed = false | ||
|
|
||
| -- Check if show options have changed | ||
| if show.message ~= eurex_derivatives_eti_t7_v1_0.prefs.show_message then | ||
| show.message = eurex_derivatives_eti_t7_v1_0.prefs.show_message | ||
| changed = true | ||
| end | ||
| if show.message_header ~= eurex_derivatives_eti_t7_v1_0.prefs.show_message_header then | ||
| show.message_header = eurex_derivatives_eti_t7_v1_0.prefs.show_message_header | ||
| changed = true | ||
| end | ||
| if show.packet ~= eurex_derivatives_eti_t7_v1_0.prefs.show_packet then | ||
| show.packet = eurex_derivatives_eti_t7_v1_0.prefs.show_packet | ||
| changed = true | ||
| end | ||
|
|
||
| -- Reload on changed preference | ||
| if changed then | ||
| reload() | ||
| end | ||
| end | ||
|
|
||
|
|
||
| ----------------------------------------------------------------------- | ||
| -- Dissect Eurex Derivatives Eti T7 1.0 | ||
| ----------------------------------------------------------------------- | ||
|
|
||
| -- Display: Payload | ||
| eurex_derivatives_eti_t7_v1_0_display.payload = function(value) | ||
| return "Payload: "..value | ||
| end | ||
|
|
||
| -- Dissect runtime sized field: Payload | ||
| eurex_derivatives_eti_t7_v1_0_dissect.payload = function(buffer, offset, packet, parent, size) | ||
| local range = buffer(offset, size) | ||
| local value = range:bytes():tohex(false, " ") | ||
| local display = eurex_derivatives_eti_t7_v1_0_display.payload(value, buffer, offset, packet, parent, size) | ||
|
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||
| parent:add(eurex_derivatives_eti_t7_v1_0.fields.payload, range, value, display) | ||
|
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||
| return offset + size | ||
| end | ||
|
|
||
| -- Size: Template Id | ||
| eurex_derivatives_eti_t7_v1_0_size_of.template_id = 2 | ||
|
|
||
| -- Display: Template Id | ||
| eurex_derivatives_eti_t7_v1_0_display.template_id = function(value) | ||
| return "Template Id: "..value | ||
| end | ||
|
|
||
| -- Dissect: Template Id | ||
| eurex_derivatives_eti_t7_v1_0_dissect.template_id = function(buffer, offset, packet, parent) | ||
| local length = eurex_derivatives_eti_t7_v1_0_size_of.template_id | ||
| local range = buffer(offset, length) | ||
| local value = range:le_uint() | ||
| local display = eurex_derivatives_eti_t7_v1_0_display.template_id(value, buffer, offset, packet, parent) | ||
|
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||
| parent:add(eurex_derivatives_eti_t7_v1_0.fields.template_id, range, value, display) | ||
|
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| return offset + length, value | ||
| end | ||
|
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||
| -- Size: Body Len | ||
| eurex_derivatives_eti_t7_v1_0_size_of.body_len = 4 | ||
|
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||
| -- Display: Body Len | ||
| eurex_derivatives_eti_t7_v1_0_display.body_len = function(value) | ||
| return "Body Len: "..value | ||
| end | ||
|
|
||
| -- Dissect: Body Len | ||
| eurex_derivatives_eti_t7_v1_0_dissect.body_len = function(buffer, offset, packet, parent) | ||
| local length = eurex_derivatives_eti_t7_v1_0_size_of.body_len | ||
| local range = buffer(offset, length) | ||
| local value = range:le_uint() | ||
| local display = eurex_derivatives_eti_t7_v1_0_display.body_len(value, buffer, offset, packet, parent) | ||
|
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| parent:add(eurex_derivatives_eti_t7_v1_0.fields.body_len, range, value, display) | ||
|
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| return offset + length, value | ||
| end | ||
|
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||
| -- Calculate size of: Message Header | ||
| eurex_derivatives_eti_t7_v1_0_size_of.message_header = function(buffer, offset) | ||
| local index = 0 | ||
|
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||
| index = index + eurex_derivatives_eti_t7_v1_0_size_of.body_len | ||
|
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| index = index + eurex_derivatives_eti_t7_v1_0_size_of.template_id | ||
|
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| return index | ||
| end | ||
|
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||
| -- Display: Message Header | ||
| eurex_derivatives_eti_t7_v1_0_display.message_header = function(buffer, offset, size, packet, parent) | ||
| return "" | ||
| end | ||
|
|
||
| -- Dissect Fields: Message Header | ||
| eurex_derivatives_eti_t7_v1_0_dissect.message_header_fields = function(buffer, offset, packet, parent) | ||
| local index = offset | ||
|
|
||
| -- Body Len: 4 Byte Unsigned Fixed Width Integer | ||
| index, body_len = eurex_derivatives_eti_t7_v1_0_dissect.body_len(buffer, index, packet, parent) | ||
|
|
||
| -- Template Id: 2 Byte Unsigned Fixed Width Integer | ||
| index, template_id = eurex_derivatives_eti_t7_v1_0_dissect.template_id(buffer, index, packet, parent) | ||
|
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||
| return index | ||
| end | ||
|
|
||
| -- Dissect: Message Header | ||
| eurex_derivatives_eti_t7_v1_0_dissect.message_header = function(buffer, offset, packet, parent) | ||
| -- Optionally add struct element to protocol tree | ||
| if show.message_header then | ||
| local length = eurex_derivatives_eti_t7_v1_0_size_of.message_header(buffer, offset) | ||
| local range = buffer(offset, length) | ||
| local display = eurex_derivatives_eti_t7_v1_0_display.message_header(buffer, packet, parent) | ||
| parent = parent:add(eurex_derivatives_eti_t7_v1_0.fields.message_header, range, display) | ||
| end | ||
|
|
||
| return eurex_derivatives_eti_t7_v1_0_dissect.message_header_fields(buffer, offset, packet, parent) | ||
| end | ||
|
|
||
| -- Display: Message | ||
| eurex_derivatives_eti_t7_v1_0_display.message = function(buffer, offset, size, packet, parent) | ||
| return "" | ||
| end | ||
|
|
||
| -- Dissect Fields: Message | ||
| eurex_derivatives_eti_t7_v1_0_dissect.message_fields = function(buffer, offset, packet, parent, size_of_message) | ||
| local index = offset | ||
|
|
||
| -- Message Header: Struct of 2 fields | ||
| index, message_header = eurex_derivatives_eti_t7_v1_0_dissect.message_header(buffer, index, packet, parent) | ||
|
|
||
| -- Dependency element: Body Len | ||
| local body_len = buffer(index - 6, 4):le_uint() | ||
|
|
||
| -- Runtime Size Of: Payload | ||
| local size_of_payload = body_len - 6 | ||
|
|
||
| -- Payload: 0 Byte | ||
| index = eurex_derivatives_eti_t7_v1_0_dissect.payload(buffer, index, packet, parent, size_of_payload) | ||
|
|
||
| return index | ||
| end | ||
|
|
||
| -- Dissect: Message | ||
| eurex_derivatives_eti_t7_v1_0_dissect.message = function(buffer, offset, packet, parent, size_of_message) | ||
| -- Optionally add struct element to protocol tree | ||
| if show.message then | ||
| local range = buffer(offset, size_of_message) | ||
| local display = eurex_derivatives_eti_t7_v1_0_display.message(buffer, packet, parent) | ||
| parent = parent:add(eurex_derivatives_eti_t7_v1_0.fields.message, range, display) | ||
| end | ||
|
|
||
| eurex_derivatives_eti_t7_v1_0_dissect.message_fields(buffer, offset, packet, parent, size_of_message) | ||
|
|
||
| return offset + size_of_message | ||
| end | ||
|
|
||
| -- Remaining Bytes For: Message | ||
| local message_bytes_remaining = function(buffer, index, available) | ||
| -- Calculate the number of bytes remaining | ||
| local remaining = available - index | ||
|
|
||
| -- Check if packet size can be read | ||
| if remaining < eurex_derivatives_eti_t7_v1_0_size_of.message_header(buffer, index) then | ||
| return -DESEGMENT_ONE_MORE_SEGMENT | ||
| end | ||
|
|
||
| -- Parse runtime size | ||
| local current = buffer(index, 4):le_uint() | ||
|
|
||
| -- Check if enough bytes remain | ||
| if remaining < current then | ||
| return -(current - remaining) | ||
| end | ||
|
|
||
| return remaining, current | ||
| end | ||
|
|
||
| -- Dissect Packet | ||
| eurex_derivatives_eti_t7_v1_0_dissect.packet = function(buffer, packet, parent) | ||
| local index = 0 | ||
|
|
||
| -- Dependency for Message | ||
| local end_of_payload = buffer:len() | ||
|
|
||
| -- Message: Struct of 2 fields | ||
| while index < end_of_payload do | ||
|
|
||
| -- Are minimum number of bytes are available? | ||
| local available, size_of_message = message_bytes_remaining(buffer, index, end_of_payload) | ||
|
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||
| if available > 0 then | ||
| index = eurex_derivatives_eti_t7_v1_0_dissect.message(buffer, index, packet, parent, size_of_message) | ||
| else | ||
| -- More bytes needed, so set packet information | ||
| packet.desegment_offset = index | ||
| packet.desegment_len = -(available) | ||
|
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||
| break | ||
| end | ||
| end | ||
|
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||
| return index | ||
| end | ||
|
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||
|
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||
| ----------------------------------------------------------------------- | ||
| -- Protocol Dissector and Components | ||
| ----------------------------------------------------------------------- | ||
|
|
||
| -- Initialize Dissector | ||
| function eurex_derivatives_eti_t7_v1_0.init() | ||
| end | ||
|
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||
| -- Dissector for Eurex Derivatives Eti T7 1.0 | ||
| function eurex_derivatives_eti_t7_v1_0.dissector(buffer, packet, parent) | ||
|
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||
| -- Set protocol name | ||
| packet.cols.protocol = eurex_derivatives_eti_t7_v1_0.name | ||
|
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||
| -- Dissect protocol | ||
| local protocol = parent:add(eurex_derivatives_eti_t7_v1_0, buffer(), eurex_derivatives_eti_t7_v1_0.description, "("..buffer:len().." Bytes)") | ||
| return eurex_derivatives_eti_t7_v1_0_dissect.packet(buffer, packet, protocol) | ||
| end | ||
|
|
||
| -- Register With Tcp Table | ||
| local tcp_table = DissectorTable.get("tcp.port") | ||
| tcp_table:add(65333, eurex_derivatives_eti_t7_v1_0) | ||
|
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||
|
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||
| ----------------------------------------------------------------------- | ||
| -- Protocol Heuristics | ||
| ----------------------------------------------------------------------- | ||
|
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| -- Verify size of packet | ||
| verify.eurex_derivatives_eti_t7_v1_0_packet_size = function(buffer) | ||
|
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| return true | ||
| end | ||
|
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||
| -- Dissector Heuristic for Eurex Derivatives Eti T7 1.0 | ||
| local function eurex_derivatives_eti_t7_v1_0_heuristic(buffer, packet, parent) | ||
| -- Verify packet length | ||
| if not verify.eurex_derivatives_eti_t7_v1_0_packet_size(buffer) then return false end | ||
|
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||
| -- Protocol is valid, set conversation and dissect this packet | ||
| packet.conversation = eurex_derivatives_eti_t7_v1_0 | ||
| eurex_derivatives_eti_t7_v1_0.dissector(buffer, packet, parent) | ||
|
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| return true | ||
| end | ||
|
|
||
| -- Register Heuristic for Eurex Derivatives Eti T7 1.0 | ||
| eurex_derivatives_eti_t7_v1_0:register_heuristic("tcp", eurex_derivatives_eti_t7_v1_0_heuristic) | ||
|
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||
| ----------------------------------------------------------------------- | ||
| -- Lua dissectors are an easily edited and modified cross platform dissection solution. | ||
| -- Feel free to modify. Enjoy. | ||
| ----------------------------------------------------------------------- | ||
| -- | ||
| -- Protocol: | ||
| -- Organization: Eurex Exchange | ||
| -- Version: 1.0 | ||
| -- Date: Thursday, January 1, 2015 | ||
| -- | ||
| -- Script: | ||
| -- Generator: 1.5.0.0 | ||
| -- Compiler: 2.0 | ||
| -- License: Public/GPLv3 | ||
| -- Authors: Omi Developers | ||
| -- | ||
| -- This script was generated by the Open Markets Initiative (Omi). | ||
| -- | ||
| -- For full Omi information: | ||
| -- https://github.com/Open-Markets-Initiative/Directory | ||
| ----------------------------------------------------------------------- |
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This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters