On Wed, 20 Dec 2000, Nadav Har'El wrote:
> I'm trying to program something (on Linux, of course) that will need to
> capture arbitrary packets coming to the machine (TCP segments, for example).
> One obvious solution is to use libpcap [1]. However, it apears that libpcap
> (even the latest version) uses a very inefficient method to capture packets
> that match some criterion (defined using a BPF program [2, 4]) - it moves
> all packets to user space, and does the matching there.
question - what types of packets exactly do you need to capture? is
this using a complex filter, or a simple one?
also, you want the original packets to keep on traveling to their
destinatin, or be captured by your software only, and not rich their
original destination directly?
--
guy
"For world domination - press 1,
or dial 0, and please hold, for the creator." -- nob o. dy
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