This is a note to let you know that I've just added the patch titled
ath9k: Fix STA disconnect issue due to received MIC failed bcast frames
to the 2.6.36-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ath9k-fix-sta-disconnect-issue-due-to-received-mic-failed-bcast-frames.patch
and it can be found in the queue-2.6.36 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 916448e77f6bcaaa7f13c3de0c3851783ae2bfd0 Mon Sep 17 00:00:00 2001
From: Senthil Balasubramanian <[email protected]>
Date: Tue, 30 Nov 2010 20:15:39 +0530
Subject: ath9k: Fix STA disconnect issue due to received MIC failed bcast frames
From: Senthil Balasubramanian <[email protected]>
commit 916448e77f6bcaaa7f13c3de0c3851783ae2bfd0 upstream.
AR_RxKeyIdxValid will not be set for bcast/mcast frames and so relying
this status for MIC failed frames is buggy.
Due to this, MIC failure events for broadcast frames are not sent to
supplicant resulted in AP disconnecting the STA.
Able to pass Wifi Test case 5.2.18 with this fix.
Signed-off-by: Senthil Balasubramanian <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/ath/ath9k/mac.c | 3 +--
drivers/net/wireless/ath/ath9k/recv.c | 4 +++-
2 files changed, 4 insertions(+), 3 deletions(-)
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -711,8 +711,7 @@ int ath9k_hw_rxprocdesc(struct ath_hw *a
rs->rs_phyerr = phyerr;
} else if (ads.ds_rxstatus8 & AR_DecryptCRCErr)
rs->rs_status |= ATH9K_RXERR_DECRYPT;
- else if ((ads.ds_rxstatus8 & AR_MichaelErr) &&
- rs->rs_keyix != ATH9K_RXKEYIX_INVALID)
+ else if (ads.ds_rxstatus8 & AR_MichaelErr)
rs->rs_status |= ATH9K_RXERR_MIC;
else if (ads.ds_rxstatus8 & AR_KeyMiss)
rs->rs_status |= ATH9K_RXERR_DECRYPT;
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -1035,9 +1035,11 @@ static void ath9k_rx_skb_postprocess(str
int hdrlen, padpos, padsize;
u8 keyix;
__le16 fc;
+ bool is_mc;
/* see if any padding is done by the hw and remove it */
hdr = (struct ieee80211_hdr *) skb->data;
+ is_mc = !!is_multicast_ether_addr(hdr->addr1);
hdrlen = ieee80211_get_hdrlen_from_skb(skb);
fc = hdr->frame_control;
padpos = ath9k_cmn_padpos(hdr->frame_control);
@@ -1058,7 +1060,7 @@ static void ath9k_rx_skb_postprocess(str
keyix = rx_stats->rs_keyix;
- if (!(keyix == ATH9K_RXKEYIX_INVALID) && !decrypt_error &&
+ if ((is_mc || !(keyix == ATH9K_RXKEYIX_INVALID)) && !decrypt_error &&
ieee80211_has_protected(fc)) {
rxs->flag |= RX_FLAG_DECRYPTED;
} else if (ieee80211_has_protected(fc)
Patches currently in stable-queue which might be from [email protected]
are
queue-2.6.36/ath9k-fix-sta-disconnect-issue-due-to-received-mic-failed-bcast-frames.patch
_______________________________________________
stable mailing list
[email protected]
http://linux.kernel.org/mailman/listinfo/stable
