From: Volker Braun <volker.braun@physik.hu-berlin.de>
Date: Mon, 24 Oct 2005 15:15:36 +0000 (-0500)
Subject: Fix problem with WEP unicast key > index 0
X-Git-Tag: v2.6.15-rc1~69^2~11^2~1
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e189277a3f1cbb0f1282e0f4b8fa8c91e004c286;p=linux-2.6

Fix problem with WEP unicast key > index 0

The functions ieee80211_wx_{get,set}_encodeext fail if one tries to set
unicast (IW_ENCODE_EXT_GROUP_KEY not set) keys at key indices>0. But at
least some Cisco APs dish out dynamic WEP unicast keys at index !=0.

Signed-off-by: Volker Braun <volker.braun@physik.hu-berlin.de>
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
---

diff --git a/net/ieee80211/ieee80211_wx.c b/net/ieee80211/ieee80211_wx.c
index f5b8053550..181755f2aa 100644
--- a/net/ieee80211/ieee80211_wx.c
+++ b/net/ieee80211/ieee80211_wx.c
@@ -522,7 +522,8 @@ int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
 		crypt = &ieee->crypt[idx];
 		group_key = 1;
 	} else {
-		if (idx != 0)
+		/* some Cisco APs use idx>0 for unicast in dynamic WEP */
+		if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
 			return -EINVAL;
 		if (ieee->iw_mode == IW_MODE_INFRA)
 			crypt = &ieee->crypt[idx];
@@ -690,7 +691,8 @@ int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
 	} else
 		idx = ieee->tx_keyidx;
 
-	if (!ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
+	if (!ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY &&
+	    ext->alg != IW_ENCODE_ALG_WEP)
 		if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA)
 			return -EINVAL;