diff options
author | Herton Ronaldo Krzesinski <herton@mandriva.com.br> | 2009-03-10 10:11:09 -0300 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-03-16 18:09:39 -0400 |
commit | 1a28c78b46caec7628985728e7f0c4aef68e33e7 (patch) | |
tree | ca2c3dc7e5bf426c579b4d363db769545a57865f /drivers/net/wireless/ath9k/main.c | |
parent | af88b9078d4aa31d667d2d82601ede9cae3bac37 (diff) |
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 <herton@mandriva.com.br>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath9k/main.c')
0 files changed, 0 insertions, 0 deletions