• Jouni Malinen's avatar
    nl80211: Add notification for dropped Deauth/Disassoc · cf4e594e
    Jouni Malinen authored
    Add a new notification to indicate that a received, unprotected
    Deauthentication or Disassociation frame was dropped due to
    management frame protection being in use. This notification is
    needed to allow user space (e.g., wpa_supplicant) to implement
    SA Query procedure to recover from association state mismatch
    between an AP and STA.
    This is needed to avoid getting stuck in non-working state when MFP
    (IEEE 802.11w) is used and a protected Deauthentication or
    Disassociation frame is dropped for any reason. After that, the
    station would silently discard any unprotected Deauthentication or
    Disassociation frame that could be indicating that the AP does not
    have association for the STA (when the Reason Code would be 6 or 7).
    IEEE Std 802.11w-2009, 11.13 describes this recovery mechanism.
    Signed-off-by: default avatarJouni Malinen <j@w1.fi>
    Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>