1 files changed, 180 insertions, 79 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 841b8450b3de..7ecda9d59d8a 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -30,7 +30,7 @@
 #define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
 #define IEEE80211_ASSOC_MAX_TRIES 3
 #define IEEE80211_MONITORING_INTERVAL (2 * HZ)
-#define IEEE80211_PROBE_INTERVAL (60 * HZ)
+#define IEEE80211_PROBE_IDLE_TIME (60 * HZ)
 #define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
 
 /* utils */
@@ -82,38 +82,23 @@ static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
 
 /* frame sending functions */
 
-static void add_extra_ies(struct sk_buff *skb, u8 *ies, size_t ies_len)
-{
-        if (ies)
-                memcpy(skb_put(skb, ies_len), ies, ies_len);
-}
-
 static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 {
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
         struct ieee80211_local *local = sdata->local;
         struct sk_buff *skb;
         struct ieee80211_mgmt *mgmt;
-        u8 *pos, *ies, *ht_ie, *e_ies;
+        u8 *pos, *ies, *ht_ie;
         int i, len, count, rates_len, supp_rates_len;
         u16 capab;
         struct ieee80211_bss *bss;
         int wmm = 0;
         struct ieee80211_supported_band *sband;
         u32 rates = 0;
-        size_t e_ies_len;
-
-        if (ifmgd->flags & IEEE80211_IBSS_PREV_BSSID_SET) {
-                e_ies = sdata->u.mgd.ie_reassocreq;
-                e_ies_len = sdata->u.mgd.ie_reassocreq_len;
-        } else {
-                e_ies = sdata->u.mgd.ie_assocreq;
-                e_ies_len = sdata->u.mgd.ie_assocreq_len;
-        }
 
         skb = dev_alloc_skb(local->hw.extra_tx_headroom +
                             sizeof(*mgmt) + 200 + ifmgd->extra_ie_len +
-                            ifmgd->ssid_len + e_ies_len);
+                            ifmgd->ssid_len);
         if (!skb) {
                 printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
                        "frame\n", sdata->dev->name);
@@ -304,8 +289,6 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
                 memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
         }
 
-        add_extra_ies(skb, e_ies, e_ies_len);
-
         kfree(ifmgd->assocreq_ies);
         ifmgd->assocreq_ies_len = (skb->data + skb->len) - ies;
         ifmgd->assocreq_ies = kmalloc(ifmgd->assocreq_ies_len, GFP_KERNEL);
@@ -323,19 +306,8 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
         struct sk_buff *skb;
         struct ieee80211_mgmt *mgmt;
-        u8 *ies;
-        size_t ies_len;
-
-        if (stype == IEEE80211_STYPE_DEAUTH) {
-                ies = sdata->u.mgd.ie_deauth;
-                ies_len = sdata->u.mgd.ie_deauth_len;
-        } else {
-                ies = sdata->u.mgd.ie_disassoc;
-                ies_len = sdata->u.mgd.ie_disassoc_len;
-        }
 
-        skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) +
-                            ies_len);
+        skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
         if (!skb) {
                 printk(KERN_DEBUG "%s: failed to allocate buffer for "
                        "deauth/disassoc frame\n", sdata->dev->name);
@@ -353,8 +325,6 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
         /* u.deauth.reason_code == u.disassoc.reason_code */
         mgmt->u.deauth.reason_code = cpu_to_le16(reason);
 
-        add_extra_ies(skb, ies, ies_len);
-
         ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
 }
 
@@ -640,6 +610,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
                 bss_info_changed |= ieee80211_handle_bss_capability(sdata,
                         bss->cbss.capability, bss->has_erp_value, bss->erp_value);
 
+                cfg80211_hold_bss(&bss->cbss);
+
                 ieee80211_rx_bss_put(local, bss);
         }
 
@@ -682,6 +654,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
 {
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+        struct ieee80211_local *local = sdata->local;
 
         ifmgd->direct_probe_tries++;
         if (ifmgd->direct_probe_tries > IEEE80211_AUTH_MAX_TRIES) {
@@ -697,6 +670,13 @@ static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
                 ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
                                 sdata->local->hw.conf.channel->center_freq,
                                 ifmgd->ssid, ifmgd->ssid_len);
+
+                /*
+                 * We might have a pending scan which had no chance to run yet
+                 * due to state == IEEE80211_STA_MLME_DIRECT_PROBE.
+                 * Hence, queue the STAs work again
+                 */
+                queue_work(local->hw.workqueue, &ifmgd->work);
                 return;
         }
 
@@ -721,6 +701,9 @@ static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
 static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
 {
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+        struct ieee80211_local *local = sdata->local;
+        u8 *ies;
+        size_t ies_len;
 
         ifmgd->auth_tries++;
         if (ifmgd->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
@@ -732,6 +715,13 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
                 ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
                                 sdata->local->hw.conf.channel->center_freq,
                                 ifmgd->ssid, ifmgd->ssid_len);
+
+                /*
+                 * We might have a pending scan which had no chance to run yet
+                 * due to state == IEEE80211_STA_MLME_AUTHENTICATE.
+                 * Hence, queue the STAs work again
+                 */
+                queue_work(local->hw.workqueue, &ifmgd->work);
                 return;
         }
 
@@ -739,7 +729,14 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
         printk(KERN_DEBUG "%s: authenticate with AP %pM\n",
                sdata->dev->name, ifmgd->bssid);
 
-        ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, NULL, 0,
+        if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
+                ies = ifmgd->sme_auth_ie;
+                ies_len = ifmgd->sme_auth_ie_len;
+        } else {
+                ies = NULL;
+                ies_len = 0;
+        }
+        ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, ies, ies_len,
                             ifmgd->bssid, 0);
         ifmgd->auth_transaction = 2;
 
@@ -756,6 +753,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 {
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
         struct ieee80211_local *local = sdata->local;
+        struct ieee80211_conf *conf = &local_to_hw(local)->conf;
+        struct ieee80211_bss *bss;
         struct sta_info *sta;
         u32 changed = 0, config_changed = 0;
 
@@ -779,6 +778,15 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
         ieee80211_sta_tear_down_BA_sessions(sta);
 
+        bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
+                                   conf->channel->center_freq,
+                                   ifmgd->ssid, ifmgd->ssid_len);
+
+        if (bss) {
+                cfg80211_unhold_bss(&bss->cbss);
+                ieee80211_rx_bss_put(local, bss);
+        }
+
         if (self_disconnected) {
                 if (deauth)
                         ieee80211_send_deauth_disassoc(sdata,
@@ -854,7 +862,7 @@ static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata)
         int wep_privacy;
         int privacy_invoked;
 
-        if (!ifmgd || (ifmgd->flags & IEEE80211_STA_MIXED_CELL))
+        if (!ifmgd || (ifmgd->flags & IEEE80211_STA_EXT_SME))
                 return 0;
 
         bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
@@ -878,6 +886,7 @@ static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata)
 static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
 {
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+        struct ieee80211_local *local = sdata->local;
 
         ifmgd->assoc_tries++;
         if (ifmgd->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
@@ -889,6 +898,12 @@ static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
                 ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
                                 sdata->local->hw.conf.channel->center_freq,
                                 ifmgd->ssid, ifmgd->ssid_len);
+                /*
+                 * We might have a pending scan which had no chance to run yet
+                 * due to state == IEEE80211_STA_MLME_ASSOCIATE.
+                 * Hence, queue the STAs work again
+                 */
+                queue_work(local->hw.workqueue, &ifmgd->work);
                 return;
         }
 
@@ -907,13 +922,55 @@ static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
         mod_timer(&ifmgd->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
 }
 
+void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
+                             struct ieee80211_hdr *hdr)
+{
+        /*
+         * We can postpone the mgd.timer whenever receiving unicast frames
+         * from AP because we know that the connection is working both ways
+         * at that time. But multicast frames (and hence also beacons) must
+         * be ignored here, because we need to trigger the timer during
+         * data idle periods for sending the periodical probe request to
+         * the AP.
+         */
+        if (!is_multicast_ether_addr(hdr->addr1))
+                mod_timer(&sdata->u.mgd.timer,
+                          jiffies + IEEE80211_MONITORING_INTERVAL);
+}
+
+void ieee80211_beacon_loss_work(struct work_struct *work)
+{
+        struct ieee80211_sub_if_data *sdata =
+                container_of(work, struct ieee80211_sub_if_data,
+                             u.mgd.beacon_loss_work);
+        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+        printk(KERN_DEBUG "%s: driver reports beacon loss from AP %pM "
+               "- sending probe request\n", sdata->dev->name,
+               sdata->u.mgd.bssid);
+
+        ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+        ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
+                                 ifmgd->ssid_len, NULL, 0);
+
+        mod_timer(&ifmgd->timer, jiffies + IEEE80211_MONITORING_INTERVAL);
+}
+
+void ieee80211_beacon_loss(struct ieee80211_vif *vif)
+{
+        struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+
+        queue_work(sdata->local->hw.workqueue,
+                   &sdata->u.mgd.beacon_loss_work);
+}
+EXPORT_SYMBOL(ieee80211_beacon_loss);
 
 static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
 {
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
         struct ieee80211_local *local = sdata->local;
         struct sta_info *sta;
-        int disassoc;
+        bool disassoc = false;
 
         /* TODO: start monitoring current AP signal quality and number of
          * missed beacons. Scan other channels every now and then and search
@@ -928,36 +985,45 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
         if (!sta) {
                 printk(KERN_DEBUG "%s: No STA entry for own AP %pM\n",
                        sdata->dev->name, ifmgd->bssid);
-                disassoc = 1;
-        } else {
-                disassoc = 0;
-                if (time_after(jiffies,
-                               sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
-                        if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) {
-                                printk(KERN_DEBUG "%s: No ProbeResp from "
-                                       "current AP %pM - assume out of "
-                                       "range\n",
-                                       sdata->dev->name, ifmgd->bssid);
-                                disassoc = 1;
-                        } else
-                                ieee80211_send_probe_req(sdata, ifmgd->bssid,
-                                                         ifmgd->ssid,
-                                                         ifmgd->ssid_len,
-                                                         NULL, 0);
-                        ifmgd->flags ^= IEEE80211_STA_PROBEREQ_POLL;
-                } else {
-                        ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
-                        if (time_after(jiffies, ifmgd->last_probe +
-                                       IEEE80211_PROBE_INTERVAL)) {
-                                ifmgd->last_probe = jiffies;
-                                ieee80211_send_probe_req(sdata, ifmgd->bssid,
-                                                         ifmgd->ssid,
-                                                         ifmgd->ssid_len,
-                                                         NULL, 0);
-                        }
-                }
+                disassoc = true;
+                goto unlock;
         }
 
+        if ((ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) &&
+            time_after(jiffies, sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
+                printk(KERN_DEBUG "%s: no probe response from AP %pM "
+                       "- disassociating\n",
+                       sdata->dev->name, ifmgd->bssid);
+                disassoc = true;
+                ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
+                goto unlock;
+        }
+
+        /*
+         * Beacon filtering is only enabled with power save and then the
+         * stack should not check for beacon loss.
+         */
+        if (!((local->hw.flags & IEEE80211_HW_BEACON_FILTER) &&
+              (local->hw.conf.flags & IEEE80211_CONF_PS)) &&
+            time_after(jiffies,
+                       ifmgd->last_beacon + IEEE80211_MONITORING_INTERVAL)) {
+                printk(KERN_DEBUG "%s: beacon loss from AP %pM "
+                       "- sending probe request\n",
+                       sdata->dev->name, ifmgd->bssid);
+                ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+                ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
+                                         ifmgd->ssid_len, NULL, 0);
+                goto unlock;
+
+        }
+
+        if (time_after(jiffies, sta->last_rx + IEEE80211_PROBE_IDLE_TIME)) {
+                ifmgd->flags |= IEEE80211_STA_PROBEREQ_POLL;
+                ieee80211_send_probe_req(sdata, ifmgd->bssid, ifmgd->ssid,
+                                         ifmgd->ssid_len, NULL, 0);
+        }
+
+ unlock:
         rcu_read_unlock();
 
         if (disassoc)
@@ -975,7 +1041,11 @@ static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata)
 
         printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name);
         ifmgd->flags |= IEEE80211_STA_AUTHENTICATED;
-        ieee80211_associate(sdata);
+        if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
+                /* Wait for SME to request association */
+                ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+        } else
+                ieee80211_associate(sdata);
 }
 
 
@@ -1061,12 +1131,15 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
         switch (ifmgd->auth_alg) {
         case WLAN_AUTH_OPEN:
         case WLAN_AUTH_LEAP:
+        case WLAN_AUTH_FT:
                 ieee80211_auth_completed(sdata);
+                cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
                 break;
         case WLAN_AUTH_SHARED_KEY:
-                if (ifmgd->auth_transaction == 4)
+                if (ifmgd->auth_transaction == 4) {
                         ieee80211_auth_completed(sdata);
-                else
+                        cfg80211_send_rx_auth(sdata->dev, (u8 *) mgmt, len);
+                } else
                         ieee80211_auth_challenge(sdata, mgmt, len);
                 break;
         }
@@ -1092,9 +1165,10 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
                 printk(KERN_DEBUG "%s: deauthenticated (Reason: %u)\n",
                                 sdata->dev->name, reason_code);
 
-        if (ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE ||
-            ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE ||
-            ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) {
+        if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
+            (ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE ||
+             ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE ||
+             ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)) {
                 ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
                 mod_timer(&ifmgd->timer, jiffies +
                                       IEEE80211_RETRY_AUTH_INTERVAL);
@@ -1102,6 +1176,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 
         ieee80211_set_disassoc(sdata, true, false, 0);
         ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED;
+        cfg80211_send_rx_deauth(sdata->dev, (u8 *) mgmt, len);
 }
 
 
@@ -1124,13 +1199,15 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
                 printk(KERN_DEBUG "%s: disassociated (Reason: %u)\n",
                                 sdata->dev->name, reason_code);
 
-        if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) {
+        if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
+            ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) {
                 ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE;
                 mod_timer(&ifmgd->timer, jiffies +
                                       IEEE80211_RETRY_AUTH_INTERVAL);
         }
 
         ieee80211_set_disassoc(sdata, false, false, reason_code);
+        cfg80211_send_rx_disassoc(sdata->dev, (u8 *) mgmt, len);
 }
 
 
@@ -1346,7 +1423,14 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
         bss_conf->assoc_capability = capab_info;
         ieee80211_set_associated(sdata, changed);
 
+        /*
+         * initialise the time of last beacon to be the association time,
+         * otherwise beacon loss check will trigger immediately
+         */
+        ifmgd->last_beacon = jiffies;
+
         ieee80211_associated(sdata);
+        cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len);
 }
 
 
@@ -1393,9 +1477,12 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
                                          size_t len,
                                          struct ieee80211_rx_status *rx_status)
 {
+        struct ieee80211_if_managed *ifmgd;
         size_t baselen;
         struct ieee802_11_elems elems;
 
+        ifmgd = &sdata->u.mgd;
+
         if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
                 return; /* ignore ProbeResp to foreign address */
 
@@ -1410,11 +1497,14 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 
         /* direct probe may be part of the association flow */
         if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE,
-            &sdata->u.mgd.request)) {
+                               &ifmgd->request)) {
                 printk(KERN_DEBUG "%s direct probe responded\n",
                        sdata->dev->name);
                 ieee80211_authenticate(sdata);
         }
+
+        if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL)
+                ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
 }
 
 static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
@@ -1636,6 +1726,8 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata)
                 ifmgd->auth_alg = WLAN_AUTH_SHARED_KEY;
         else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP)
                 ifmgd->auth_alg = WLAN_AUTH_LEAP;
+        else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_FT)
+                ifmgd->auth_alg = WLAN_AUTH_FT;
         else
                 ifmgd->auth_alg = WLAN_AUTH_OPEN;
         ifmgd->auth_transaction = -1;
@@ -1659,7 +1751,8 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata)
         u16 capa_val = WLAN_CAPABILITY_ESS;
         struct ieee80211_channel *chan = local->oper_channel;
 
-        if (ifmgd->flags & (IEEE80211_STA_AUTO_SSID_SEL |
+        if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) &&
+            ifmgd->flags & (IEEE80211_STA_AUTO_SSID_SEL |
                             IEEE80211_STA_AUTO_BSSID_SEL |
                             IEEE80211_STA_AUTO_CHANNEL_SEL)) {
                 capa_mask |= WLAN_CAPABILITY_PRIVACY;
@@ -1822,6 +1915,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
         ifmgd = &sdata->u.mgd;
         INIT_WORK(&ifmgd->work, ieee80211_sta_work);
         INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work);
+        INIT_WORK(&ifmgd->beacon_loss_work, ieee80211_beacon_loss_work);
         setup_timer(&ifmgd->timer, ieee80211_sta_timer,
                     (unsigned long) sdata);
         setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer,
@@ -1834,7 +1928,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
         ifmgd->flags |= IEEE80211_STA_CREATE_IBSS |
                 IEEE80211_STA_AUTO_BSSID_SEL |
                 IEEE80211_STA_AUTO_CHANNEL_SEL;
-        if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4)
+        if (sdata->local->hw.queues >= 4)
                 ifmgd->flags |= IEEE80211_STA_WMM_ENABLED;
 }
 
@@ -1856,7 +1950,11 @@ void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata)
                         ieee80211_set_disassoc(sdata, true, true,
                                                WLAN_REASON_DEAUTH_LEAVING);
 
-                set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
+                if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) ||
+                    ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE)
+                        set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
+                else if (ifmgd->flags & IEEE80211_STA_EXT_SME)
+                        set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request);
                 queue_work(local->hw.workqueue, &ifmgd->work);
         }
 }
@@ -1865,8 +1963,6 @@ int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata)
 {
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-        ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
-
         if (ifmgd->ssid_len)
                 ifmgd->flags |= IEEE80211_STA_SSID_SET;
         else
@@ -1885,6 +1981,10 @@ int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size
         ifmgd = &sdata->u.mgd;
 
         if (ifmgd->ssid_len != len || memcmp(ifmgd->ssid, ssid, len) != 0) {
+                /*
+                 * Do not use reassociation if SSID is changed (different ESS).
+                 */
+                ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
                 memset(ifmgd->ssid, 0, sizeof(ifmgd->ssid));
                 memcpy(ifmgd->ssid, ssid, len);
                 ifmgd->ssid_len = len;
@@ -1923,7 +2023,8 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
         return ieee80211_sta_commit(sdata);
 }
 
-int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len)
+int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
+                               const char *ie, size_t len)
 {
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;