Re: [B.A.T.M.A.N.] [PATCHv2 4/4] batman-adv: enable nodes to detect not yet announced clients

[Antonio Quartulli <ordex@autistici.org>]

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On Wed, Apr 04, 2012 at 02:42:12PM +0200, Antonio Quartulli wrote:
> A client that connects to the mesh network is not visible to any node until it
> has been announced by its serving node in the next TT diff sent out by means of
> the next OGM.
> 
> During this period the client is not able to communicate to anyone because no
> node has a route towards it yet. This is usually acceptable in networks with
> short OGM interval (=the maximum waiting time before the next announcement), but
> it is definitely problematic in networks where the OGM interval has been set to
> an higher value (e.g. 5 seconds). The client, that probably issued an ARP or
> DHCP request upon connection will suffer from several timeouts before being able
> to communicate with the rest of the network.
> 
> This patch enable nodes to detect such "new born" clients and to add a temporary
> route towards them in order to be able to communicate. If the client is not
> claimed by any node within a certain amount of time, it will then be deleted.
> 
> Roaming operations have been adapted accordingly in order to be let clients
> switch serving node even during the first OGM interval (when they have not been
> announced yet)
> 
> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
> ---
>  main.h              |    2 +
>  packet.h            |   15 +++----
>  routing.c           |   26 +++++++++---
>  soft-interface.c    |    6 ++-
>  soft-interface.h    |    2 +-
>  translation-table.c |  111 +++++++++++++++++++++++++++++++++++++++++----------
>  translation-table.h |    4 +-
>  types.h             |    1 +
>  8 files changed, 130 insertions(+), 37 deletions(-)


We definitely need to keep TEMP entries away from global CRC computation and full
table response! So please, drop this patchset. I'll send a new one later.

Cheers,

/me acting as schizophrenic


-- 
Antonio Quartulli

..each of us alone is worth nothing..
Ernesto "Che" Guevara

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