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ath9k: add some more fixes to the mic failure handling rework patch 

SVN-Revision: 27607
lede-17.01
Felix Fietkau 2011-07-13 15:37:36 +00:00
parent 9ef09af36d
commit e084d0e92a
1 changed files with 28 additions and 7 deletions
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35
package/mac80211/patches/550-ath9k_mmic_verify.patch
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@ -24,12 +24,31 @@
if (!rx_stats->rs_datalen) if (!rx_stats->rs_datalen)
return false; return false;
/* /*
@@ -850,25 +853,9 @@ static bool ath9k_rx_accept(struct ath_c @@ -838,6 +841,11 @@ static bool ath9k_rx_accept(struct ath_c
if (rx_stats->rs_more)
return true;
+ mic_error = is_valid_tkip && !ieee80211_is_ctl(fc) &&
+ !ieee80211_has_morefrags(fc) &&
+ !(le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG) &&
+ (rx_stats->rs_status & ATH9K_RXERR_MIC);
+
/*
* The rx_stats->rs_status will not be set until the end of the
* chained descriptors so it can be ignored if rs_more is set. The
@@ -845,30 +853,18 @@ static bool ath9k_rx_accept(struct ath_c
* descriptors.
*/
if (rx_stats->rs_status != 0) {
- if (rx_stats->rs_status & ATH9K_RXERR_CRC)
+ if (rx_stats->rs_status & ATH9K_RXERR_CRC) {
rxs->flag |= RX_FLAG_FAILED_FCS_CRC;
+ mic_error = false;
+ }
if (rx_stats->rs_status & ATH9K_RXERR_PHY) if (rx_stats->rs_status & ATH9K_RXERR_PHY)
return false; return false;
- if (rx_stats->rs_status & ATH9K_RXERR_DECRYPT) { if (rx_stats->rs_status & ATH9K_RXERR_DECRYPT) {
+ if (rx_stats->rs_status & ATH9K_RXERR_DECRYPT)
*decrypt_error = true; *decrypt_error = true;
- } else if (rx_stats->rs_status & ATH9K_RXERR_MIC) { - } else if (rx_stats->rs_status & ATH9K_RXERR_MIC) {
- bool is_mc; - bool is_mc;
@ -39,7 +58,7 @@
- * decrypted using a valid TKIP key. - * decrypted using a valid TKIP key.
- */ - */
- is_mc = !!is_multicast_ether_addr(hdr->addr1); - is_mc = !!is_multicast_ether_addr(hdr->addr1);
-
- if (!ieee80211_is_ctl(fc) && - if (!ieee80211_is_ctl(fc) &&
- !ieee80211_has_morefrags(fc) && - !ieee80211_has_morefrags(fc) &&
- !(le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG) && - !(le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG) &&
@ -47,11 +66,13 @@
- rxs->flag |= RX_FLAG_MMIC_ERROR; - rxs->flag |= RX_FLAG_MMIC_ERROR;
- else - else
- rx_stats->rs_status &= ~ATH9K_RXERR_MIC; - rx_stats->rs_status &= ~ATH9K_RXERR_MIC;
- } + mic_error = false;
}
+
/* /*
* Reject error frames with the exception of * Reject error frames with the exception of
* decryption and MIC failures. For monitor mode, * decryption and MIC failures. For monitor mode,
@@ -886,6 +873,18 @@ static bool ath9k_rx_accept(struct ath_c @@ -886,6 +882,18 @@ static bool ath9k_rx_accept(struct ath_c
} }
} }
} }
@ -70,7 +91,7 @@
return true; return true;
} }
@@ -1940,6 +1939,9 @@ int ath_rx_tasklet(struct ath_softc *sc, @@ -1940,6 +1948,9 @@ int ath_rx_tasklet(struct ath_softc *sc,
sc->rx.rxotherant = 0; sc->rx.rxotherant = 0;
} }