Subject: Re: [PATCH 1/1] mac80211: sends HT IE to user level through wext
From: Johannes Berg <johannes@sipsolutions.net>
To: Jouni Malinen <j@w1.fi>
Cc: Tomas Winkler <tomas.winkler@intel.com>, linville@tuxdriver.com,
	yi.zhu@intel.com, linux-wireless@vger.kernel.org,
	Emmanuel Grumbach <emmanuel.grumbach@intel.com>
In-Reply-To: <20080527172032.GN4932@jm.kir.nu>
References: <1211907611-27979-1-git-send-email-tomas.winkler@intel.com>
	 <1211907892.3930.19.camel@johannes.berg>  <20080527172032.GN4932@jm.kir.nu>
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Date: Tue, 27 May 2008 19:24:15 +0200
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> I would prefer to get all IEs in one blob (assuming WEXT does not have
> length limits on this data that could be up to about 2250 bytes long).

Good point. That should actually be doable quite easily.

> This would avoid need to add new IEs one by one in the future (e.g., for
> IEEE 802.11r).

Yeah, precisely.

> wpa_supplicant should be able to combine multiple IEs (or even multiple
> IE groups) together, so I'm not too concerned of this being done
> separately, but in general, it would be simpler to just pass all IEs as
> a single blob. It might even be worthwhile to start storing the IEs as a
> single buffer and have helper functions to fetch pointer to the
> beginning of whatever IE is needed in the MLME code (this is how the
> current wpa_supplicant processes IEs from scan results).

Actually, we do store them in one blob and then hand out pointers to the
various parts.

johannes

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