commit 4375d08350e3661d5e8860d33eea084e47ba01cf
author Jouni Malinen <j@w1.fi> Thu Jan 08 13:32:11 2009 +0200
committer John W. Linville <linville@tuxdriver.com> Thu Jan 29 16:00:08 2009 -0500
tree bb4df587cbe044700e0f29900c51e54ebd06ddd3
parent 1f7d77ab69789980dad44e1af7afd3a68cd48276

mac80211: 802.11w - Add driver capability flag for MFP

This allows user space to determine whether a driver supports MFP and
behave properly without having to ask user to configure this in
MFP-optional mode.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/mac80211/wext.c

diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 2dd3874..70a29b6 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -976,6 +976,10 @@
 			ret = -EOPNOTSUPP;
 		break;
 	case IW_AUTH_MFP:
+		if (!(sdata->local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) {
+			ret = -EOPNOTSUPP;
+			break;
+		}
 		if (sdata->vif.type == NL80211_IFTYPE_STATION ||
 		    sdata->vif.type == NL80211_IFTYPE_ADHOC)
 			sdata->u.sta.mfp = data->value;