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Re: [RFC] cfg80211: Let mgmt_tx accept frames destined for its own stack.

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On Mon, 2011-04-04 at 19:06 -0700, Javier Cardona wrote:
> This is useful for implementing frame protection in userspace. The kernel may
> request a userspace daemon to verify a frame (sent to userspace via
> cfg80211_rx_mgmt()).  The userspace daemon can then pass back the
> verified/unprotected frame to the stack for further processing (via a
> self-addressed frame sent with cfg80211_mlme_mgmt_tx())
> 
> We are using this for our implementation authenticated peering.  11s defines
> two versions of mesh peering, the non-secure mesh peering management (MPM) and
> the Authenticated Mesh Peering Exchange (AMPE).  The latter is based on the
> exact same state machine as MPM.  It is really convenient to use the in-kernel
> MPM with a minimal userspace daemon to add the security bits introduced by
> AMPE.  This way both secured and open mesh networks can use exact same peering
> code.
> 
> What do you think... will this fly?

Seems very strange to me. I guess if you're after unification in my mind
it makes more sense to declare the in-kernel state machine legacy, copy
it into the userspace tool and use it even for unprotected MPM?

johannes

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