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nl80211: Add Michael MIC failure event

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Define a new nl80211 event, NL80211_CMD_MICHAEL_MIC_FAILURE, to be
used to notify user space about locally detected Michael MIC failures.
This matches with the MLME-MICHAELMICFAILURE.indication() primitive.

Since we do not actually have TSC in the skb anymore when
mac80211_ev_michael_mic_failure() is called, that function is changed
to take in the TSC as an optional parameter instead of as a
requirement to include the TSC after the hdr field (which we did not
really follow). For now, TSC is not included in the events from
mac80211, but it could be added at some point.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jouni Malinen
2009-03-27 21:59:49 +02:00
committed by John W. Linville
parent 53b46b8444
commit a3b8b0569f
9 changed files with 111 additions and 11 deletions
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2
net/mac80211/rx.c
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@@ -1932,7 +1932,7 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev,
!ieee80211_is_auth(hdr->frame_control))
goto ignore;
mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr);
mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr, NULL);
ignore:
dev_kfree_skb(rx->skb);
rx->skb = NULL;