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authorJouni Malinen <j@w1.fi>2010-12-16 00:52:40 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-12-16 15:22:30 -0500
commitcf4e594ea7e55555e81647b74a3a8e8b2826a529 (patch)
tree794013429d9613ef253111fb50f993600ab14a55 /include/net
parent5928b91acae97622a6f2e679eb7a9f19bed68e3e (diff)
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nl80211: Add notification for dropped Deauth/Disassoc
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: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/cfg80211.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index f45e15f..3d1c09b 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2360,6 +2360,32 @@ void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
size_t len);
/**
+ * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
+ * @dev: network device
+ * @buf: deauthentication frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever a received Deauthentication frame has been
+ * dropped in station mode because of MFP being used but the Deauthentication
+ * frame was not protected. This function may sleep.
+ */
+void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
+ size_t len);
+
+/**
+ * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
+ * @dev: network device
+ * @buf: disassociation frame (header + body)
+ * @len: length of the frame data
+ *
+ * This function is called whenever a received Disassociation frame has been
+ * dropped in station mode because of MFP being used but the Disassociation
+ * frame was not protected. This function may sleep.
+ */
+void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
+ size_t len);
+
+/**
* cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
* @dev: network device
* @addr: The source MAC address of the frame
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