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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27607 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/mac80211/patches/550-ath9k_mmic_verify.patch b/package/mac80211/patches/550-ath9k_mmic_verify.patch
index 1918e11..a6b2502 100644 (file)
--- a/package/mac80211/patches/550-ath9k_mmic_verify.patch
+++ b/package/mac80211/patches/550-ath9k_mmic_verify.patch
@@ -24,12 +24,31 @@
        if (!rx_stats->rs_datalen)
                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)
                        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;
 -              } else if (rx_stats->rs_status & ATH9K_RXERR_MIC) {
 -                      bool is_mc;
@@ -39,7 +58,7 @@
 -                       * decrypted using a valid TKIP key.
 -                       */
 -                      is_mc = !!is_multicast_ether_addr(hdr->addr1);
- 
+-
 -                      if (!ieee80211_is_ctl(fc) &&
 -                          !ieee80211_has_morefrags(fc) &&
 -                          !(le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG) &&
@@ -47,11 +66,13 @@
 -                              rxs->flag |= RX_FLAG_MMIC_ERROR;
 -                      else
 -                              rx_stats->rs_status &= ~ATH9K_RXERR_MIC;
--              }
++                      mic_error = false;
+               }
++
                /*
                 * Reject error frames with the exception of
                 * 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;
  }
  
-@@ -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;
                }