4 files changed, 22 insertions, 3 deletions

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index f3eec989662b..5f8ad885a48a 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -258,6 +258,7 @@ struct mesh_preq_queue {
 #define IEEE80211_STA_AUTO_BSSID_SEL    BIT(11)
 #define IEEE80211_STA_AUTO_CHANNEL_SEL  BIT(12)
 #define IEEE80211_STA_PRIVACY_INVOKED   BIT(13)
+#define IEEE80211_STA_TKIP_WEP_USED     BIT(14)
 /* flags for MLME request */
 #define IEEE80211_STA_REQ_SCAN 0
 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index b9074824862a..1eefc5df4954 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -459,7 +459,8 @@ static int ieee80211_stop(struct net_device *dev)
                 synchronize_rcu();
                 skb_queue_purge(&sdata->u.sta.skb_queue);
 
-                sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
+                sdata->u.sta.flags &= ~(IEEE80211_STA_PRIVACY_INVOKED |
+                                        IEEE80211_STA_TKIP_WEP_USED);
                 kfree(sdata->u.sta.extra_ie);
                 sdata->u.sta.extra_ie = NULL;
                 sdata->u.sta.extra_ie_len = 0;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 2b890af01ba4..b688425d7555 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -391,10 +391,17 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
         }
 
         /* wmm support is a must to HT */
+        /*
+         * IEEE802.11n does not allow TKIP/WEP as pairwise
+         * ciphers in HT mode. We still associate in non-ht
+         * mode (11a/b/g) if any one of these ciphers is
+         * configured as pairwise.
+         */
         if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) &&
             sband->ht_cap.ht_supported &&
             (ht_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_INFORMATION)) &&
-            ht_ie[1] >= sizeof(struct ieee80211_ht_info)) {
+            ht_ie[1] >= sizeof(struct ieee80211_ht_info) &&
+            (!(ifsta->flags & IEEE80211_STA_TKIP_WEP_USED))) {
                 struct ieee80211_ht_info *ht_info =
                         (struct ieee80211_ht_info *)(ht_ie + 2);
                 u16 cap = sband->ht_cap.cap;
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 7162d5816f39..011592fd4528 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -903,12 +903,22 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
 
         switch (data->flags & IW_AUTH_INDEX) {
         case IW_AUTH_WPA_VERSION:
-        case IW_AUTH_CIPHER_PAIRWISE:
         case IW_AUTH_CIPHER_GROUP:
         case IW_AUTH_WPA_ENABLED:
         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
         case IW_AUTH_KEY_MGMT:
                 break;
+        case IW_AUTH_CIPHER_PAIRWISE:
+                if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+                        if (data->value & (IW_AUTH_CIPHER_WEP40 |
+                            IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_TKIP))
+                                sdata->u.sta.flags |=
+                                        IEEE80211_STA_TKIP_WEP_USED;
+                        else
+                                sdata->u.sta.flags &=
+                                        ~IEEE80211_STA_TKIP_WEP_USED;
+                }
+                break;
         case IW_AUTH_DROP_UNENCRYPTED:
                 sdata->drop_unencrypted = !!data->value;
                 break;