cfg80211: deauth doesn't always imply disconnect
Johannes Berg [Thu, 5 Aug 2010 08:20:27 +0000 (10:20 +0200)]
When an AP sends a deauth frame, or we send one
to an AP, that only means we lost our connection
if we were actually connected to that AP. Check
this to avoid sending spurious "disconnected"
events and breaking "iw ... link" reporting.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/wireless/mlme.c

index d1a3fb9..ee0af32 100644 (file)
@@ -149,7 +149,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
        struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
        const u8 *bssid = mgmt->bssid;
        int i;
-       bool found = false;
+       bool found = false, was_current = false;
 
        ASSERT_WDEV_LOCK(wdev);
 
@@ -159,6 +159,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
                cfg80211_put_bss(&wdev->current_bss->pub);
                wdev->current_bss = NULL;
                found = true;
+               was_current = true;
        } else for (i = 0; i < MAX_AUTH_BSSES; i++) {
                if (wdev->auth_bsses[i] &&
                    memcmp(wdev->auth_bsses[i]->pub.bssid, bssid, ETH_ALEN) == 0) {
@@ -183,7 +184,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
 
        nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL);
 
-       if (wdev->sme_state == CFG80211_SME_CONNECTED) {
+       if (wdev->sme_state == CFG80211_SME_CONNECTED && was_current) {
                u16 reason_code;
                bool from_ap;