Patchwork pull request: batman-adv 2012-04-25

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Submitter Antonio Quartulli
Date April 25, 2012, 1:26 p.m.
Message ID <>
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Permalink /patch/154908/
State Changes Requested
Delegated to: David Miller
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git:// tags/batman-adv-for-davem


Antonio Quartulli - April 25, 2012, 1:26 p.m.
I'd like to propose the following changes for net-next/linux-3.5.

The first 8 patches introduce a new feature called D.A.T. (Distributed ARP
Table) which is the resulting implementation of Antonio Quartulli's GSOC 2011
Project[0]. This feature aims to improve reliability of ARP resolutions in
sparse wireless mesh networks by creating either a local and a
network-wide-distributed ARP cache. Major details can be found on its
It is an optional feature and it is possible to choose whether to compile it
or not by using the proper Kconfig option (=n by default). We are evaluating the
possibility of introducing a runtime switch to turn the behaviour on an off
without recompiling the module (like for the bridge loop avoidance).

Patch 1 also introduces a new packet type, but backward compatibility is
Patch 9 fixes a bug in the "gw propagation" feature introduced so far.
Patch 11 and 12 are yet other improvements for the new

The others are minor fixes and cleanups.

Thank you very much,


The following changes since commit 7a2a66a0ac1cf93d30869c4ecbfc71a2fda19397:

  Add linux-next specific files for 20120423 (2012-04-23 16:58:43 +1000)

are available in the git repository at:

  git:// tags/batman-adv-for-davem

for you to fetch changes up to cc01b7a1f16291cc48fa6d261aa952d45604f10c:

  batman-adv: split neigh_new function into generic and batman iv specific parts (2012-04-24 10:11:31 +0200)

Included changes:

* a new feature has been introduced: D.A.T. (Distributed ARP Table). It is a
  mechanism based on DHT theory that creates a distributed (mesh network wide)
  ARP cache in order to speed up ARP resolutions in sparse wireless mesh
* in order to satisfy DAT requirements a new unicast packet type, namely
  UNICAST_4ADDR, has been introduced. Backward compatibility has been kept: not
  updated nodes will simply drop the packet and ignore DAT mechanism.
* minor fixes and cleanups
* minor routing protocol API cleanups

Antonio Quartulli (9):
      batman-adv: add UNICAST_4ADDR packet type
      batman-adv: add a new log level for DAT debugging
      batman-adv: add biggest_unsigned_int(x) macro
      batman-adv: Distributed ARP Table - create DHT helper functions
      batman-adv: Distributed ARP Table - add ARP parsing functions
      batman-adv: Distributed ARP Table - add snooping functions for ARP messages
      batman-adv: Distributed ARP Table - increase default soft_iface ARP table timeout
      batman-adv: Distributed ARP Table - add compile option
      batman-adv: fix wrong dhcp option list browsing

Marek Lindner (6):
      batman-adv: introduce is_single_hop_neigh variable to increase readability
      batman-adv: introduce packet type handler array for incoming packets
      batman-adv: register batman ogm receive function during protocol init
      batman-adv: rename last_valid to last_seen
      batman-adv: replace HZ calculations with jiffies_to_msecs()
      batman-adv: split neigh_new function into generic and batman iv specific parts

 Documentation/networking/batman-adv.txt |    3 +-
 net/batman-adv/Kconfig                  |   10 +
 net/batman-adv/Makefile                 |    1 +
 net/batman-adv/bat_debugfs.c            |    4 +-
 net/batman-adv/bat_iv_ogm.c             |   95 +++--
 net/batman-adv/bat_sysfs.c              |    2 +-
 net/batman-adv/distributed-arp-table.c  |  605 +++++++++++++++++++++++++++++++
 net/batman-adv/distributed-arp-table.h  |  140 +++++++
 net/batman-adv/gateway_client.c         |    6 +-
 net/batman-adv/hard-interface.c         |  116 +-----
 net/batman-adv/main.c                   |  124 ++++++-
 net/batman-adv/main.h                   |   24 +-
 net/batman-adv/originator.c             |   52 +--
 net/batman-adv/originator.h             |    6 +-
 net/batman-adv/packet.h                 |   30 +-
 net/batman-adv/routing.c                |   30 +-
 net/batman-adv/routing.h                |    4 +-
 net/batman-adv/send.c                   |    6 +-
 net/batman-adv/soft-interface.c         |   17 +-
 net/batman-adv/types.h                  |   33 +-
 net/batman-adv/unicast.c                |  102 +++++-
 net/batman-adv/unicast.h                |   21 +-
 22 files changed, 1205 insertions(+), 226 deletions(-)
 create mode 100644 net/batman-adv/distributed-arp-table.c
 create mode 100644 net/batman-adv/distributed-arp-table.h
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