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+[[!meta copyright="Copyright © 2009 Free Software Foundation, Inc."]]
+
+[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
+is included in the section entitled [[GNU Free Documentation
+License|/fdl]]."]]"""]]
+
+[[!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 6624]] -- gnumach provides the interface for the
+        program to set the kernel device into promiscuous mode
+
+      * [[!GNU_Savannah_patch 6851]] -- fix a bug in BPF