rt2x00: Fix WPA TKIP Michael MIC failures.

As reported and found by Johannes Stezenbach:
rt2800{pci,usb} do not report the Michael MIC in RXed frames, but do check
the Michael MIC in hardware. Therefore we have to report to mac80211 that the
received frame does not include the Michael MIC.

https://bugzilla.kernel.org/show_bug.cgi?id=16608

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 7951cdaa9c0147e70631f2bc1fa103df63030a43..3b3f1e45ab3e58e7538a3ae02c5a4058caaad29b 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -652,6 +652,12 @@ static void rt2800pci_fill_rxdone(struct queue_entry *entry,
                 */
                rxdesc->flags |= RX_FLAG_IV_STRIPPED;
 
+               /*
+                * The hardware has already checked the Michael Mic and has
+                * stripped it from the frame. Signal this to mac80211.
+                */
+               rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
+
                if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
                        rxdesc->flags |= RX_FLAG_DECRYPTED;
                else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)

diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index b97a4a54ff4cb2eb9499014cb8647df74efd9982..197a36c05fdaf18a294000b9eae8b5dad2073eea 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -486,6 +486,12 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
                 */
                rxdesc->flags |= RX_FLAG_IV_STRIPPED;
 
+               /*
+                * The hardware has already checked the Michael Mic and has
+                * stripped it from the frame. Signal this to mac80211.
+                */
+               rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
+
                if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
                        rxdesc->flags |= RX_FLAG_DECRYPTED;
                else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)