Bug 178379

Summary:	[net80211] [ath] WPA rekey on the STA side fails when transmitting lots of UDP traffic
Product:	Base System	Reporter:	Adrian Chadd <adrian>
Component:	wireless	Assignee:	freebsd-wireless (Nobody) <wireless>
Status:	Open ---
Severity:	Affects Only Me
Priority:	Normal
Version:	1.0-CURRENT
Hardware:	Any
OS:	Any

Description Adrian Chadd freebsd_committer

2013-05-06 23:10:00 UTC

When UDP iperf transmit is going on, a WPA group rekey fails and the AP ditches the station.

What's going on:

* FreeBSD AP -> FreeBSD STA (both ath)
* AP sends a WPA rekey EAPOL message to the STA
* STA updates the key, sends an EAPOL message back
* AP doesn't get it, so it eventually disconnects the station.

What's breaking:

* The STA gets the EAPOL group rekey frame
* the STA updates the keycache entry
* The STA sends the EAPOL response
* .. but it doesn't actually send the frame, it gets dropped by ath_start() because the buffers are all allocated.

I'll dig into it some more.

Comment 1 Mark Linimon freebsd_committer

2013-05-07 02:38:02 UTC

Responsible Changed
From-To: freebsd-bugs->freebsd-wireless

Over to maintainer(s).

Comment 2 Eitan Adler freebsd_committer

2018-05-28 19:50:15 UTC

batch change:

For bugs that match the following
-  Status Is In progress 
AND
- Untouched since 2018-01-01.
AND
- Affects Base System OR Documentation

DO:

Reset to open status.


Note:
I did a quick pass but if you are getting this email it might be worthwhile to double check to see if this bug ought to be closed.