/dev/bpf is a user-land hook into the magical world of the kernel's packet handling. It's what lets things like tcpdump work. See http://www.openbsd.com/cgi-bin/man.cgi?query=bpf for a great explanation of it (the linux docs are really bad on it).
-kousue $@$ gmail dot com
The Berkely Packet Filter
/dev/bpf is a user-land hook into the magical world of the kernel's packet handling. It's what lets things like tcpdump work. See http://www.openbsd.com/cgi-bin/man.cgi?query=bpf for a great explanation of it (the linux docs are really bad on it).
-kousue $@$ gmail dot com