init commit, import blob plugin

.gitignore

@@ -0,0 +1,47 @@
+
+# Created by https://www.gitignore.io/api/lua
+
+### Lua ###
+# Compiled Lua sources
+luac.out
+
+# luarocks build files
+*.src.rock
+*.zip
+*.tar.gz
+
+# Object files
+*.o
+*.os
+*.ko
+*.obj
+*.elf
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+*.def
+*.exp
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+
+# End of https://www.gitignore.io/api/lua

src/b2ws-plugin/b2ws.config

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+{
+	["blob_src"] = "/path/to/blob-file",
+	["eth_fake_header_src"] = "00 00 00 00 00 00",
+	["eth_fake_header_dst"] = "11 11 11 11 11 11",
+	["eth_fake_header_type"] = "47 11"
+}

src/b2ws-plugin/b2ws_import.lua

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+
+local PLUGIN_PATH = "plugins/b2ws-plugin/"
+local PLUGIN_CONFIG_FILE_NAME = "b2ws.config"
+
+-- from http://lua-users.org/wiki/StringRecipes
+local function string_starts(String,Start)
+	return string.sub(String,1,string.len(Start))==Start
+end
+
+-- from http://lua-users.org/wiki/StringTrim
+function b2ws_trim(s)
+ local from = s:match"^%s*()"
+ return from > #s and "" or s:match(".*%S", from)
+end
+
+local function create_b2ws_config_file_path(plugin_path, plugin_config_file_name)
+	return persconffile_path(plugin_path) .. plugin_config_file_name
+end
+
+local function write_b2ws_file(file_path, content)
+	local config_inp = assert(io.open(file_path, "w"))
+	config_inp:write(content)
+	assert(config_inp:close())
+end
+
+local function read_b2ws_file(file_path)
+	local config_inp = assert(io.open(file_path, "r"))
+	local config_string = config_inp:read("*all")
+	assert(config_inp:close())
+	return config_string
+end
+
+local function read_b2ws_config_file(plugin_path, plugin_config_file_name)
+	local path = create_b2ws_config_file_path(plugin_path, plugin_config_file_name)
+	return read_b2ws_file(path)
+end
+
+local function write_b2ws_config_file(plugin_path, plugin_config_file_name, settings)
+	local path = create_b2ws_config_file_path(plugin_path, plugin_config_file_name)
+	write_b2ws_file(path, settings)
+end
+
+local function b2ws_import_blob(config_string)
+
+	local tmp_config_func = assert(loadstring(string.gsub(config_string, "[\n\r]", "")))
+	b2ws_config = tmp_config_func()
+
+	-- read blob file
+	local bytes = read_b2ws_file(b2ws_config.blob_src)
+
+	-- convert to hex string
+	local data = {}
+	bytes:gsub(".", function(c)	table.insert(data,string.format("%02X ", string.byte(c))) end)
+	local data_string = table.concat(data)
+
+	-- create fake ethernet frame
+	local header = PseudoHeader.eth()
+	local eth_fake_header = b2ws_config.eth_fake_header_src .. b2ws_config.eth_fake_header_dst .. b2ws_config.eth_fake_header_type
+	local eth_fake_frame = eth_fake_header .. data_string
+	local pcapPath = b2ws_config.blob_src .. ".pcap"
+
+	-- write fake frame to pcap file
+	local dmp = Dumper.new(pcapPath)
+	dmp:dump(os.time(),header, ByteArray.new(eth_fake_frame))
+	dmp:flush()
+	dmp:close()
+	return pcapPath
+end
+
+if (gui_enabled()) then
+	-- gui part
+	local IMPORT_BLOB_MENU_TITLE = "b2ws/Import Blob"
+	local IMPORT_BLOB_BTN_TITLE = "Import Blob"
+	local SAVE_SETTINGS_BTN_TITLE = "Save current settings"
+	local IMPORT_BLOB_WIN_TITLE = "Import Blob"
+
+	local function b2ws_win_import_blob()
+		local win = TextWindow.new(IMPORT_BLOB_WIN_TITLE)
+		win:set_editable()
+		win:set(read_b2ws_config_file(PLUGIN_PATH, PLUGIN_CONFIG_FILE_NAME))
+
+		local function b2ws_win_btn_import_blob()
+
+			-- load config from text field
+			local win_text = win:get_text();
+			if not (string_starts(win_text, "return ")) then
+				win_text = "return " .. win_text
+			end
+
+			-- import to and show in pcap file
+			output_path = b2ws_import_blob(win_text)
+			open_capture_file(output_path, "")
+		end
+
+		local function b2ws_win_btn_save_settings()
+			-- load config from text field
+			local win_text = b2ws_trim(win:get_text());
+			write_b2ws_config_file(PLUGIN_PATH, PLUGIN_CONFIG_FILE_NAME, win_text)
+		end
+
+	   win:add_button(IMPORT_BLOB_BTN_TITLE, b2ws_win_btn_import_blob)
+	   win:add_button(SAVE_SETTINGS_BTN_TITLE, b2ws_win_btn_save_settings)
+	end
+
+	register_menu(IMPORT_BLOB_MENU_TITLE, b2ws_win_import_blob, MENU_TOOLS_UNSORTED)
+end