BPF for Linux

BPF for Linux

Post by Ashish B. Sha » Thu, 08 Jul 1999 04:00:00



Hi,

I would like to know if Berkeley Packet Filter (BPF) is implemented in
Linux kernel. If not, what is the best way to implement packet filtering?

Thanks.
Ashish

---------------------------------------
Ashish B. Shah
Graduate Student
Electrical and Computer Engineering
University of California, Santa Barbara
CA 93106
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1. BPF for Linux

Does anyone know if there is any kind of implementation of BSD Packet
Filter (BPF) for Linux?  Since it's a kernel level implementation, I'm
hoping that there's a loadable module out there.                  

Right now tcpdump for Linux uses RAW socket types, but I'm thinking that
using BPF will give me greater speed (for my project, not tcpdump).  Does
anybody know of the performance of such RAW socket types vs. BPF?

Thanks for any help,

Amit Kulkarni

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/  Amit Kulkarni                                  \

/  www.cen.uiuc.edu/~akulkarn                     \

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