[PATCH 1/2] mac80211: Support iwconfig enc restricted with WEP

["Ortwin Glück" <odi@odi.ch>]

The mac80211 code doesn't handle WEP with shared keys correctly. Using the ath9k 
driver on my MacBook I am unable to put the driver into restricted mode (shared 
key). It stays in open mode. That is the following command has no effect: 
iwconfig wlan0 enc restricted. I can also confirm this when looking at the 
authentication packets that go over the air: they are sent with the open flag, 
and not the shared key flag.

Signed-off-by: Ortwin Glueck <odi@odi.ch>
---
  net/mac80211/wext.c |   12 ++++++++++++
  1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 34fa8ed..645c276 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -929,6 +929,18 @@ static int ieee80211_ioctl_siwencode(struct net_device *dev,
  	else
  		idx--;

+	if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
+		struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+		if (erq->flags & IW_ENCODE_OPEN) {
+			printk("wext: open\n");
+			ifsta->auth_alg = WLAN_AUTH_OPEN;
+		}
+		else if (erq->flags & IW_ENCODE_RESTRICTED) {
+			printk("wext: shared key\n");
+			ifsta->auth_alg = WLAN_AUTH_SHARED_KEY;
+		}
+	}
+
  	if (erq->flags & IW_ENCODE_DISABLED)
  		remove = 1;
  	else if (erq->length == 0) {
-- 
1.5.6.4