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[[!meta copyright="Copyright © 2009 Free Software Foundation, Inc."]]

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[[!meta title=BPF]]

[[!tag open_issue_gnumach open_issue_hurd]]

This is a collection of resources concerning *Berkeley Packet Filter*s.


# Documentation

  * Wikipedia: [[!wikipedia "Berkeley Packet Filter"]]

  * [The Packet Filter: An Efficient Mechanism for User-level Network
    Code](http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.36.8755),
    1987, Jeffrey C. Mogul, Richard F. Rashid, Michael J. Accetta

  * [The BSD Packet Filter: A New Architecture for User-level Packet
    Capture](http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.43.7849),
    1992, Steven Mccanne, Van Jacobson

  * [Protocol Service Decomposition for High-Performance
    Networking](http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.30.8387),
    1993, Chris Maeda, Brian N. Bershad

  * [Efficient Packet Demultiplexing for Multiple Endpoints and Large
    Messages](http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.46.44),
    1994, Masanobu Yuhara Fujitsu, Masanobu Yuhara, Brian N. Bershad, Chris
    Maeda, J. Eliot, B. Moss

  * ... and many more


# Implementation

  * [[community/HurdFr]]

      * <http://wiki.hurdfr.org/index.php/BPF>

      * <http://wiki.hurdfr.org/index.php/Reseau_dans_gnumach>

      * Git repository: <http://rcs-git.duckcorp.org/hurdfr/bpf.git/>

    The patch for [[GNU Mach|microkernel/mach/gnumach]] is expected to be
    complete and functional, the [[hurd/translator]] less so -- amongst others,
    there are unresolved issues concerning support of [[hurd/glibc/IOCTL]]s.

  * [[zhengda]]

      * [[!GNU_Savannah_bug 25054]] -- Kernel panic with eth-multiplexer

      * [[!GNU_Savannah_patch 6619]] -- pfinet uses the virtual interface

      * [[!GNU_Savannah_patch 6620]] -- pfinet changes its filter rules with
        its IP address

      * [[!GNU_Savannah_patch 6621]] -- pfinet sets the mach device into the
        promiscuous mode

      * [[!GNU_Savannah_patch 6622]] -- pfinet uses the BPF filter

      * [[!GNU_Savannah_patch 6851]] -- fix a bug in BPF