  (åȤǤʬ)
  Linux Socket Filter  Berkeley Packet Filter ͳ褷Ƥ
  ޤ Y ȡ桼֤ưץब
  åȤ˥ե륿֤ǤˤäƤΥåȾ
  Υǡ̤̤ʤ褦˥ͥ˻
  ޤ Linux Socket Filtering TCP ʳƤ
  åȷǻȤޤܤ
  linux/Documentation/networking/filter.txt 򸫤Ƥ
  ʬʤʤ N Ƥ

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