Hi
When I connect to an AP with wpa, then I receive deauth frame,
ieee80211_rx_mgmt_deauth will be called, which will call
ieee80211_set_associated(dev, ifsta, 0); to disconnect. In function
ieee80211_set_associated, it calls wireless_send_event with SIOCGIWAP
event and memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN). wpa_supplicant will
receives this event then call mac80211 to remove any old security key,
the problem it will pass 00:00:00:00:00:00 as station address.
ieee80211_set_encryption will fail since there are no station with
00:00:00:00:00:00. This will leave the old key which causes the problems
in the next reconnection.
Below is the work around to this problem, I am not very familiar with
security in mac80211 so I appreciate any comment on how to fix this
problem the right way.
Mohamed
diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c
index c84a26e..e08df5e 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/net/mac80211/ieee80211_ioctl.c
@@ -97,7 +97,10 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
return -EINVAL;
}
- sta = sta_info_get(local, sta_addr);
+ if (is_zero_ether_addr(sta_addr))
+ sta = sta_info_get(local, sdata->u.sta.bssid);
+ else
+ sta = sta_info_get(local, sta_addr);
if (!sta) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
-
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