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From: Jouni Malinen <j@w1.fi>
To: Avinash Patil <patila@marvell.com>
Cc: Johannes Berg <johannes@sipsolutions.net>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
	Amitkumar Karwar <akarwar@marvell.com>,
	Cathy Luo <cluo@marvell.com>, Xinming Hu <huxm@marvell.com>,
	Li Long <longli@marvell.com>
Subject: Re: [PATCH 1/3] mwifiex: add cfg80211 set_default_mgmt_key handler
Date: Tue, 31 Mar 2015 17:59:10 +0300	[thread overview]
Message-ID: <20150331145910.GA8244@w1.fi> (raw)
In-Reply-To: <CBACCFA0AEB13A41977475BCF3E896FC689F4C7E9B@SC-VEXCH2.marvell.com>

On Tue, Mar 31, 2015 at 07:33:39AM -0700, Avinash Patil wrote:
> We feel set_default_key_mgmt handler is required for devices which supports 2 pair of GTKs.

Why would a device not support multiple GTKs/IGTKs? It does not sound
possible to implement RSN correctly without such support.. AP side could
kind of try to work with only a single GTK/IGTK, but non-AP STA would
not handle GTK/IGTK rekeying. In any case, IEEE Std 802.11-2012 seems to
be pretty clear on the assumption being that the device (including
AP-only cases) supports multiple GTK/IGTK. The authenticator state
machines use key index values 1 and 2 and swap between these when doing
rekeying.

-- 
Jouni Malinen                                            PGP id EFC895FA

      reply	other threads:[~2015-03-31 14:59 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-12 18:15 [PATCH 1/3] mwifiex: add cfg80211 set_default_mgmt_key handler Avinash Patil
2015-02-12 18:15 ` [PATCH 2/3] mwifiex: WMM AC parameter configuration for AP mode Avinash Patil
2015-02-12 18:15 ` [PATCH 3/3] mwifiex: add cfg80211 set_mac_acl handler " Avinash Patil
2015-02-13 18:06 ` [PATCH 1/3] mwifiex: add cfg80211 set_default_mgmt_key handler Johannes Berg
2015-02-23  7:47   ` Avinash Patil
2015-03-17 11:25   ` Avinash Patil
2015-03-31 14:33   ` Avinash Patil
2015-03-31 14:59     ` Jouni Malinen [this message]

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