From: Herton Ronaldo Krzesinski Date: Tue, 10 Mar 2009 13:11:09 +0000 (-0300) Subject: mac80211: deauth before flushing STA information X-Git-Tag: v2.6.30-rc1~662^2~195^2~24 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a28c78b46caec7628985728e7f0c4aef68e33e7;p=pandora-kernel.git mac80211: deauth before flushing STA information Even after commit "mac80211: deauth when interface is marked down" (e327b847 on Linus tree), userspace still isn't notified when interface goes down. There isn't a problem with this commit, but because of other code changes it doesn't work on kernels >= 2.6.28 (works if same/similar change applied on 2.6.27 for example). The issue is as follows: after commit "mac80211: restructure disassoc/deauth flows" in 2.6.28, the call to ieee80211_sta_deauthenticate added by commit e327b847 will not work: because we do sta_info_flush(local, sdata) inside ieee80211_stop (iface.c), all stations in interface are cleared, so when calling ieee80211_sta_deauthenticate->ieee80211_set_disassoc (mlme.c), inside ieee80211_set_disassoc we have this in the beginning: sta = sta_info_get(local, ifsta->bssid); if (!sta) { The !sta check triggers, thus the function returns early and ieee80211_sta_send_apinfo(sdata, ifsta) later isn't called, so wpa_supplicant/userspace isn't notified with SIOCGIWAP. This commit moves deauthentication to before flushing STA info (sta_info_flush), thus the above can't happen and userspace is really notified when interface goes down. Signed-off-by: Herton Ronaldo Krzesinski Signed-off-by: John W. Linville --- Reading git-diff-tree failed