Post-Dissection包分析

對于與特定過濾器匹配或具有特定分路的每個數據包，都會調用一次偵聽器。它可以讀取樹、數據包的TVB緩沖區以及分路數據，但不能向樹中添加元素。

Listener.new([tap], [filter], [allfields])

創建一個新的Listener 點擊對象
參數：
tap (optional)

The name of this tap. See Listener.list() for a way to print valid listener names.

filter (optional)

A display filter to apply to the tap. The tap.packet function will be called for each matching packet. The default is nil, which matches every packet. Example: “m2tp”.

allfields (optional)

Whether to generate all fields. The default is false. Note: This impacts performance.

Returns

The newly created Listener listener object

Errors

• tap registration error