Messages in this thread |  | | Date | Mon, 18 Mar 2002 13:40:36 -0500 (EST) | From | <> | Subject | RE: Trapping all Incoming Network Packets |
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On Mon, 18 Mar 2002, Robert Pfister wrote:
> There are ways to accomplish similar things in user space. Is there some > reason that you need to do this in the kernel? What is your end-goal with > this? > > Robb >
To do it in user space, you have to use the raw socket interface. This by-passes the entire TCP/IP stack. I want to sniff the packets, and make a decision based on certain characteristics of each packet. So I need to have a filter between the IP and link-layer. Also, I do not want the filter to slow down traffic. Hence I believe implementing inside kernel will be more efficient.
-- pradipta
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