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| author | Felix Fietkau <nbd@openwrt.org> | 2010-08-28 16:23:45 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2010-08-28 16:23:45 +0000 |
| commit | c3bcd846e9d36948fad886ac416db396e335d0e2 (patch) | |
| tree | b93d872b48d8bf5abf1470002091161be12db55b /package/mac80211 | |
| parent | e874503f3fa18e01da269006802db589cebdf23e (diff) | |
| download | upstream-c3bcd846e9d36948fad886ac416db396e335d0e2.tar.gz upstream-c3bcd846e9d36948fad886ac416db396e335d0e2.tar.bz2 upstream-c3bcd846e9d36948fad886ac416db396e335d0e2.zip | |
ath9k: add some extra checks to the mic failure fix
SVN-Revision: 22825
Diffstat (limited to 'package/mac80211')
| -rw-r--r-- | package/mac80211/patches/570-ath9k_mic_failure_fix.patch | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/package/mac80211/patches/570-ath9k_mic_failure_fix.patch b/package/mac80211/patches/570-ath9k_mic_failure_fix.patch index 73c6347c5c..fbd188d6fa 100644 --- a/package/mac80211/patches/570-ath9k_mic_failure_fix.patch +++ b/package/mac80211/patches/570-ath9k_mic_failure_fix.patch @@ -44,7 +44,7 @@ EXPORT_SYMBOL(ath9k_cmn_key_delete); --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c -@@ -870,15 +870,19 @@ static bool ath9k_rx_accept(struct ath_c +@@ -870,15 +870,18 @@ static bool ath9k_rx_accept(struct ath_c if (rx_stats->rs_status & ATH9K_RXERR_DECRYPT) { *decrypt_error = true; } else if (rx_stats->rs_status & ATH9K_RXERR_MIC) { @@ -58,17 +58,28 @@ - else + /* + * The MIC error bit is only valid if the frame -+ * is not a control frame, and it was decrypted using -+ * a TKIP key. ++ * is not a control frame or fragment, and it was ++ * decrypted using a valid TKIP key. + */ + if (!ieee80211_is_ctl(fc) && -+ rx_stats->rs_keyix != ATH9K_RXKEYIX_INVALID && -+ test_bit(rx_stats->rs_keyix, common->tkip_keymap)) { ++ !ieee80211_has_morefrags(fc) && ++ !(le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG) && ++ test_bit(rx_stats->rs_keyix, common->tkip_keymap)) rxs->flag |= RX_FLAG_MMIC_ERROR; -+ } else { ++ else + rx_stats->rs_status &= ~ATH9K_RXERR_MIC; -+ *decrypt_error = true; -+ } } /* * Reject error frames with the exception of +--- a/drivers/net/wireless/ath/ath9k/mac.c ++++ b/drivers/net/wireless/ath/ath9k/mac.c +@@ -711,7 +711,8 @@ 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) ++ 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; |