Date: Mon, 28 Feb 2005 23:08:36 +0900 From: Hongying Liu <hongying.liu@fuji.waseda.jp> To: <freebsd-ipfw@freebsd.org> Cc: hongying.liu@fuji.waseda.jp Subject: Can anybody help me with understanding how IPFW works Message-ID: <20050228140837.10174.HONGYING.LIU@fuji.waseda.jp>
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Hi, I think the packets is checked by using rules in kernel. I am reading the code of IPFW. but I still can't understand how the rules are passed from userland to kernel. I found sysctl is used to pass some info. but I don't think rules also are passed by using sysctl because there may be too many data. I also found raw socket is used in the userland source code. is raw socket is used to pass rules from userland to kernel? Thanks Liu
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