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ath9k_hw: handle rx key miss 

If AR_KeyMiss is set in the rx descriptor and AR_RxFrameOK is unset,
the hardware could not locate a valid key during a decryption attempt.

In this case, the frame must not be reported as decrypted, otherwise
mac80211 sees only random garbage.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2010-09-14 18:38:26 +02:00 committed by John W. Linville
parent 2944f45d9d
commit 3ae74c33c4
2 changed files with 4 additions and 1 deletions
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3
drivers/net/wireless/ath/ath9k/ar9003_mac.c
View File

@ -616,7 +616,8 @@ int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah, struct ath_rx_status *rxs,
rxs->rs_status |= ATH9K_RXERR_DECRYPT;
} else if (rxsp->status11 & AR_MichaelErr) {
rxs->rs_status |= ATH9K_RXERR_MIC;
}
} else if (rxsp->status11 & AR_KeyMiss)
rxs->rs_status |= ATH9K_RXERR_DECRYPT;
}
return 0;

2
drivers/net/wireless/ath/ath9k/mac.c
View File

@ -714,6 +714,8 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
else if ((ads.ds_rxstatus8 & AR_MichaelErr) &&
rs->rs_keyix != ATH9K_RXKEYIX_INVALID)
rs->rs_status |= ATH9K_RXERR_MIC;
else if (ads.ds_rxstatus8 & AR_KeyMiss)
rs->rs_status |= ATH9K_RXERR_DECRYPT;
}
return 0;