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From: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH 05/28] wifi: cfg80211: support reporting failed links
Date: Thu, 6 Oct 2022 20:10:55 +0530	[thread overview]
Message-ID: <d837e231-7704-bdb0-4cc5-89a214d21d3c@quicinc.com> (raw)
In-Reply-To: <6d0333ef30624ef285c01dc2dd27da76450d613e.camel@sipsolutions.net>


On 10/6/2022 4:41 PM, Johannes Berg wrote:
> Right, but is there a fundamental difference between
>   "hey I roamed to this AP MLD with links 1, 2 and 5"
>   (with the right BSSIDs for the links etc.)
>
> and
>
>   "hey I roamed to this AP MLD and I tried links 1, 2, 3, 4, 5 but only
> 1, 2 and 5 were established"
>
> ?

supplicant must validate MLO Link KDEs(includes RSNE and RSNXE) for all 
the negotiated links but MLO GTK/IGTK/BIGTK only for accepted links 
while processing 3/4 msg.

So, during roaming if EAPOL 4HS is offload to supplicant it should know 
the requested and accepted links information.

non-AP MLD needs to select common AKM across all the links. The MLO Link 
KDEs validation helps to avoid downgrade attacks.

- veeru



  reply	other threads:[~2022-10-06 14:41 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-05 13:00 [PATCH 00/28] wifi: further MLO work Johannes Berg
2022-10-05 13:00 ` [PATCH 01/28] wifi: mac80211: add pointer from link STA to STA Johannes Berg
2022-10-05 13:00 ` [PATCH 02/28] wifi: mac80211: add API to show the link STAs in debugfs Johannes Berg
2022-10-05 13:00 ` [PATCH 03/28] wifi: mac80211: include link address " Johannes Berg
2022-10-05 13:00 ` [PATCH 04/28] wifi: mac80211: recalc station aggregate data during link switch Johannes Berg
2022-10-05 13:00 ` [PATCH 05/28] wifi: cfg80211: support reporting failed links Johannes Berg
2022-10-06 10:49   ` Veerendranath Jakkam
2022-10-06 10:51     ` Johannes Berg
2022-10-06 11:09       ` Veerendranath Jakkam
2022-10-06 11:11         ` Johannes Berg
2022-10-06 14:40           ` Veerendranath Jakkam [this message]
2022-10-05 13:00 ` [PATCH 06/28] wifi: ieee80211: Support validating ML station profile length Johannes Berg
2022-10-05 13:00 ` [PATCH 07/28] wifi: cfg80211/mac80211: Fix ML element common size calculation Johannes Berg
2022-10-05 13:00 ` [PATCH 08/28] wifi: cfg80211/mac80211: Fix ML element common size validation Johannes Berg
2022-10-05 13:00 ` [PATCH 09/28] wifi: mac80211: Parse station profile from association response Johannes Berg
2022-10-05 13:00 ` [PATCH 10/28] wifi: mac80211: Process association status for affiliated links Johannes Berg
2022-10-05 13:00 ` [PATCH 11/28] wifi: mac80211: wme: use ap_addr instead of deflink BSSID Johannes Berg
2022-10-05 13:00 ` [PATCH 12/28] wifi: mac80211: transmit AddBA with MLD address Johannes Berg
2022-10-05 13:00 ` [PATCH 13/28] wifi: nl80211: use link ID in NL80211_CMD_SET_BSS Johannes Berg
2022-10-05 13:00 ` [PATCH 14/28] wifi: mac80211: use link_id in ieee80211_change_bss() Johannes Berg
2022-10-05 13:00 ` [PATCH 15/28] wifi: mac80211: advertise TWT requester only with HW support Johannes Berg
2022-10-05 13:00 ` [PATCH 16/28] wifi: mac80211: set internal scan request BSSID Johannes Berg
2022-10-05 13:00 ` [PATCH 17/28] wifi: mac80211: fix AddBA response addressing Johannes Berg
2022-10-05 13:00 ` [PATCH 18/28] wifi: mac80211: add RCU _check() link access variants Johannes Berg
2022-10-05 13:00 ` [PATCH 19/28] wifi: fix multi-link element subelement iteration Johannes Berg
2022-10-05 13:00 ` [PATCH 20/28] wifi: mac80211: mlme: fix null-ptr deref on failed assoc Johannes Berg
2022-10-05 13:00 ` [PATCH 21/28] wifi: mac80211: check link ID in auth/assoc continuation Johannes Berg
2022-10-05 13:00 ` [PATCH 22/28] wifi: mac80211: mlme: mark assoc link in output Johannes Berg
2022-10-05 13:00 ` [PATCH 23/28] wifi: mac80211: change AddBA deny error message Johannes Berg
2022-10-05 13:00 ` [PATCH 24/28] wifi: mac80211: don't clear DTIM period after setting it Johannes Berg
2022-10-05 13:00 ` [PATCH 25/28] wifi: mac80211: prohibit IEEE80211_HT_CAP_DELAY_BA with MLO Johannes Berg
2022-10-05 13:00 ` [PATCH 26/28] wifi: mac80211: agg-rx: avoid band check Johannes Berg
2022-10-05 13:00 ` [PATCH 27/28] wifi: mac80211: remove support for AddBA with fragmentation Johannes Berg
2022-10-05 13:00 ` [PATCH 28/28] wifi: mac80211: fix ifdef symbol name Johannes Berg

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