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-rw-r--r--package/mac80211/patches/550-ath9k_mmic_verify.patch103
1 files changed, 0 insertions, 103 deletions
diff --git a/package/mac80211/patches/550-ath9k_mmic_verify.patch b/package/mac80211/patches/550-ath9k_mmic_verify.patch
deleted file mode 100644
index a6b2502bf..000000000
--- a/package/mac80211/patches/550-ath9k_mmic_verify.patch
+++ /dev/null
@@ -1,103 +0,0 @@
---- a/drivers/net/wireless/ath/ath9k/recv.c
-+++ b/drivers/net/wireless/ath/ath9k/recv.c
-@@ -814,16 +814,19 @@ static bool ath9k_rx_accept(struct ath_c
- struct ath_rx_status *rx_stats,
- bool *decrypt_error)
- {
--#define is_mc_or_valid_tkip_keyix ((is_mc || \
-- (rx_stats->rs_keyix != ATH9K_RXKEYIX_INVALID && \
-- test_bit(rx_stats->rs_keyix, common->tkip_keymap))))
--
-+ bool is_mc, is_valid_tkip, strip_mic, mic_error = false;
- struct ath_hw *ah = common->ah;
- __le16 fc;
- u8 rx_status_len = ah->caps.rx_status_len;
-
- fc = hdr->frame_control;
-
-+ is_mc = !!is_multicast_ether_addr(hdr->addr1);
-+ is_valid_tkip = rx_stats->rs_keyix != ATH9K_RXKEYIX_INVALID &&
-+ test_bit(rx_stats->rs_keyix, common->tkip_keymap);
-+ strip_mic = is_valid_tkip && !(rx_stats->rs_status &
-+ (ATH9K_RXERR_DECRYPT | ATH9K_RXERR_CRC | ATH9K_RXERR_MIC));
-+
- if (!rx_stats->rs_datalen)
- return false;
- /*
-@@ -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) {
- *decrypt_error = true;
-- } else if (rx_stats->rs_status & ATH9K_RXERR_MIC) {
-- bool is_mc;
-- /*
-- * The MIC error bit is only valid if the frame
-- * is not a control frame or fragment, and it was
-- * 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) &&
-- is_mc_or_valid_tkip_keyix)
-- 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 +882,18 @@ static bool ath9k_rx_accept(struct ath_c
- }
- }
- }
-+
-+ /*
-+ * For unicast frames the MIC error bit can have false positives,
-+ * so all MIC error reports need to be validated in software.
-+ * False negatives are not common, so skip software verification
-+ * if the hardware considers the MIC valid.
-+ */
-+ if (strip_mic)
-+ rxs->flag |= RX_FLAG_MMIC_STRIPPED;
-+ else if (is_mc && mic_error)
-+ rxs->flag |= RX_FLAG_MMIC_ERROR;
-+
- return true;
- }
-
-@@ -1940,6 +1948,9 @@ int ath_rx_tasklet(struct ath_softc *sc,
- sc->rx.rxotherant = 0;
- }
-
-+ if (rxs->flag & RX_FLAG_MMIC_STRIPPED)
-+ skb_trim(skb, skb->len - 8);
-+
- spin_lock_irqsave(&sc->sc_pm_lock, flags);
-
- if ((sc->ps_flags & (PS_WAIT_FOR_BEACON |