mac80211: Fix drop_unencrypted for MFP with hwaccel
Commit bef5d1c70d132145c0fc75b3586a19841a9a82e4 split
ieee80211_drop_unencrypted() into separate functions that are used for
Data and Management frames. However, it did not handle the
RX_FLAG_DECRYPTED correctly for Management frames:
ieee80211_drop_unencrypted() can only return 0 for Management frames,
so there is no point in calling it here. Instead, just check the
status->flag directly.
Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index ea71e1a..14366d4 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1408,12 +1408,15 @@
ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
__le16 fc = hdr->frame_control;
- int res;
- res = ieee80211_drop_unencrypted(rx, fc);
- if (unlikely(res))
- return res;
+ /*
+ * Pass through unencrypted frames if the hardware has
+ * decrypted them already.
+ */
+ if (status->flag & RX_FLAG_DECRYPTED)
+ return 0;
if (rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP)) {
if (unlikely(ieee80211_is_unicast_robust_mgmt_frame(rx->skb) &&