1 files changed, 181 insertions, 55 deletions

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 0d2d94881f1f..ded5c3843e06 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -17,10 +17,10 @@
 #include <linux/skbuff.h>
 #include <linux/etherdevice.h>
 #include <linux/if_arp.h>
-#include <linux/wireless.h>
 #include <linux/rtnetlink.h>
 #include <linux/bitmap.h>
 #include <linux/pm_qos_params.h>
+#include <linux/inetdevice.h>
 #include <net/net_namespace.h>
 #include <net/cfg80211.h>
 
@@ -32,7 +32,12 @@
 #include "led.h"
 #include "cfg.h"
 #include "debugfs.h"
-#include "debugfs_netdev.h"
+
+
+bool ieee80211_disable_40mhz_24ghz;
+module_param(ieee80211_disable_40mhz_24ghz, bool, 0644);
+MODULE_PARM_DESC(ieee80211_disable_40mhz_24ghz,
+                 "Disable 40MHz support in the 2.4GHz band");
 
 void ieee80211_configure_filter(struct ieee80211_local *local)
 {
@@ -67,7 +72,7 @@ void ieee80211_configure_filter(struct ieee80211_local *local)
         spin_lock_bh(&local->filter_lock);
         changed_flags = local->filter_flags ^ new_flags;
 
-        mc = drv_prepare_multicast(local, local->mc_count, local->mc_list);
+        mc = drv_prepare_multicast(local, &local->mc_list);
         spin_unlock_bh(&local->filter_lock);
 
         /* be a bit nasty */
@@ -102,9 +107,15 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
         if (scan_chan) {
                 chan = scan_chan;
                 channel_type = NL80211_CHAN_NO_HT;
+                local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
+        } else if (local->tmp_channel) {
+                chan = scan_chan = local->tmp_channel;
+                channel_type = local->tmp_channel_type;
+                local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL;
         } else {
                 chan = local->oper_channel;
-                channel_type = local->oper_channel_type;
+                channel_type = local->_oper_channel_type;
+                local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL;
         }
 
         if (chan != local->hw.conf.channel ||
@@ -114,6 +125,18 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
                 changed |= IEEE80211_CONF_CHANGE_CHANNEL;
         }
 
+        if (!conf_is_ht(&local->hw.conf)) {
+                /*
+                 * mac80211.h documents that this is only valid
+                 * when the channel is set to an HT type, and
+                 * that otherwise STATIC is used.
+                 */
+                local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC;
+        } else if (local->hw.conf.smps_mode != local->smps_mode) {
+                local->hw.conf.smps_mode = local->smps_mode;
+                changed |= IEEE80211_CONF_CHANGE_SMPS;
+        }
+
         if (scan_chan)
                 power = chan->max_power;
         else
@@ -173,7 +196,7 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
         } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
                 sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid;
         else if (sdata->vif.type == NL80211_IFTYPE_AP)
-                sdata->vif.bss_conf.bssid = sdata->dev->dev_addr;
+                sdata->vif.bss_conf.bssid = sdata->vif.addr;
         else if (ieee80211_vif_is_mesh(&sdata->vif)) {
                 sdata->vif.bss_conf.bssid = zero;
         } else {
@@ -195,7 +218,7 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
         }
 
         if (changed & BSS_CHANGED_BEACON_ENABLED) {
-                if (local->quiescing || !netif_running(sdata->dev) ||
+                if (local->quiescing || !ieee80211_sdata_running(sdata) ||
                     test_bit(SCAN_SW_SCANNING, &local->scanning)) {
                         sdata->vif.bss_conf.enable_beacon = false;
                 } else {
@@ -206,11 +229,11 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
                         switch (sdata->vif.type) {
                         case NL80211_IFTYPE_AP:
                                 sdata->vif.bss_conf.enable_beacon =
-                                        !!rcu_dereference(sdata->u.ap.beacon);
+                                        !!sdata->u.ap.beacon;
                                 break;
                         case NL80211_IFTYPE_ADHOC:
                                 sdata->vif.bss_conf.enable_beacon =
-                                        !!rcu_dereference(sdata->u.ibss.presp);
+                                        !!sdata->u.ibss.presp;
                                 break;
                         case NL80211_IFTYPE_MESH_POINT:
                                 sdata->vif.bss_conf.enable_beacon = true;
@@ -223,8 +246,7 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
                 }
         }
 
-        drv_bss_info_changed(local, &sdata->vif,
-                             &sdata->vif.bss_conf, changed);
+        drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed);
 }
 
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
@@ -241,7 +263,6 @@ static void ieee80211_tasklet_handler(unsigned long data)
 {
         struct ieee80211_local *local = (struct ieee80211_local *) data;
         struct sk_buff *skb;
-        struct ieee80211_ra_tid *ra_tid;
 
         while ((skb = skb_dequeue(&local->skb_queue)) ||
                (skb = skb_dequeue(&local->skb_queue_unreliable))) {
@@ -256,18 +277,6 @@ static void ieee80211_tasklet_handler(unsigned long data)
                         skb->pkt_type = 0;
                         ieee80211_tx_status(local_to_hw(local), skb);
                         break;
-                case IEEE80211_DELBA_MSG:
-                        ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
-                        ieee80211_stop_tx_ba_cb(ra_tid->vif, ra_tid->ra,
-                                                ra_tid->tid);
-                        dev_kfree_skb(skb);
-                        break;
-                case IEEE80211_ADDBA_MSG:
-                        ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
-                        ieee80211_start_tx_ba_cb(ra_tid->vif, ra_tid->ra,
-                                                 ra_tid->tid);
-                        dev_kfree_skb(skb);
-                        break ;
                 default:
                         WARN(1, "mac80211: Packet is of unknown type %d\n",
                              skb->pkt_type);
@@ -291,6 +300,8 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw)
 {
         struct ieee80211_local *local = hw_to_local(hw);
 
+        trace_api_restart_hw(local);
+
         /* use this reason, __ieee80211_resume will unblock it */
         ieee80211_stop_queues_by_reason(hw,
                 IEEE80211_QUEUE_STOP_REASON_SUSPEND);
@@ -299,6 +310,86 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL(ieee80211_restart_hw);
 
+static void ieee80211_recalc_smps_work(struct work_struct *work)
+{
+        struct ieee80211_local *local =
+                container_of(work, struct ieee80211_local, recalc_smps);
+
+        mutex_lock(&local->iflist_mtx);
+        ieee80211_recalc_smps(local, NULL);
+        mutex_unlock(&local->iflist_mtx);
+}
+
+#ifdef CONFIG_INET
+static int ieee80211_ifa_changed(struct notifier_block *nb,
+                                 unsigned long data, void *arg)
+{
+        struct in_ifaddr *ifa = arg;
+        struct ieee80211_local *local =
+                container_of(nb, struct ieee80211_local,
+                             ifa_notifier);
+        struct net_device *ndev = ifa->ifa_dev->dev;
+        struct wireless_dev *wdev = ndev->ieee80211_ptr;
+        struct in_device *idev;
+        struct ieee80211_sub_if_data *sdata;
+        struct ieee80211_bss_conf *bss_conf;
+        struct ieee80211_if_managed *ifmgd;
+        int c = 0;
+
+        if (!netif_running(ndev))
+                return NOTIFY_DONE;
+
+        /* Make sure it's our interface that got changed */
+        if (!wdev)
+                return NOTIFY_DONE;
+
+        if (wdev->wiphy != local->hw.wiphy)
+                return NOTIFY_DONE;
+
+        sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
+        bss_conf = &sdata->vif.bss_conf;
+
+        /* ARP filtering is only supported in managed mode */
+        if (sdata->vif.type != NL80211_IFTYPE_STATION)
+                return NOTIFY_DONE;
+
+        idev = sdata->dev->ip_ptr;
+        if (!idev)
+                return NOTIFY_DONE;
+
+        ifmgd = &sdata->u.mgd;
+        mutex_lock(&ifmgd->mtx);
+
+        /* Copy the addresses to the bss_conf list */
+        ifa = idev->ifa_list;
+        while (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN && ifa) {
+                bss_conf->arp_addr_list[c] = ifa->ifa_address;
+                ifa = ifa->ifa_next;
+                c++;
+        }
+
+        /* If not all addresses fit the list, disable filtering */
+        if (ifa) {
+                sdata->arp_filter_state = false;
+                c = 0;
+        } else {
+                sdata->arp_filter_state = true;
+        }
+        bss_conf->arp_addr_cnt = c;
+
+        /* Configure driver only if associated */
+        if (ifmgd->associated) {
+                bss_conf->arp_filter_enabled = sdata->arp_filter_state;
+                ieee80211_bss_info_change_notify(sdata,
+                                                 BSS_CHANGED_ARP_FILTER);
+        }
+
+        mutex_unlock(&ifmgd->mtx);
+
+        return NOTIFY_DONE;
+}
+#endif
+
 struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
                                         const struct ieee80211_ops *ops)
 {
@@ -333,9 +424,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
                         WIPHY_FLAG_4ADDR_STATION;
         wiphy->privid = mac80211_wiphy_privid;
 
-        /* Yes, putting cfg80211_bss into ieee80211_bss is a hack */
-        wiphy->bss_priv_size = sizeof(struct ieee80211_bss) -
-                               sizeof(struct cfg80211_bss);
+        wiphy->bss_priv_size = sizeof(struct ieee80211_bss);
 
         local = wiphy_priv(wiphy);
 
@@ -358,20 +447,29 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
         local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
         local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
         local->user_power_level = -1;
+        local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES;
+        local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN;
 
         INIT_LIST_HEAD(&local->interfaces);
+
+        __hw_addr_init(&local->mc_list);
+
         mutex_init(&local->iflist_mtx);
         mutex_init(&local->scan_mtx);
 
-        spin_lock_init(&local->key_lock);
+        mutex_init(&local->key_mtx);
         spin_lock_init(&local->filter_lock);
         spin_lock_init(&local->queue_stop_reason_lock);
 
         INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work);
 
+        ieee80211_work_init(local);
+
         INIT_WORK(&local->restart_work, ieee80211_restart_work);
 
         INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter);
+        INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work);
+        local->smps_mode = IEEE80211_SMPS_OFF;
 
         INIT_WORK(&local->dynamic_ps_enable_work,
                   ieee80211_dynamic_ps_enable_work);
@@ -382,8 +480,10 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
         sta_info_init(local);
 
-        for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
+        for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
                 skb_queue_head_init(&local->pending[i]);
+                atomic_set(&local->agg_queue_stop[i], 0);
+        }
         tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
                      (unsigned long)local);
 
@@ -394,8 +494,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
         skb_queue_head_init(&local->skb_queue);
         skb_queue_head_init(&local->skb_queue_unreliable);
 
-        spin_lock_init(&local->ampdu_lock);
-
         return local_to_hw(local);
 }
 EXPORT_SYMBOL(ieee80211_alloc_hw);
@@ -405,7 +503,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
         struct ieee80211_local *local = hw_to_local(hw);
         int result;
         enum ieee80211_band band;
-        int channels, i, j, max_bitrates;
+        int channels, max_bitrates;
         bool supp_ht;
         static const u32 cipher_suites[] = {
                 WLAN_CIPHER_SUITE_WEP40,
@@ -461,6 +559,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
         else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
                 local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
 
+        WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
+             && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK),
+             "U-APSD not supported with HW_PS_NULLFUNC_STACK\n");
+
         /*
          * Calculate scan IE length -- we need this to alloc
          * memory and to subtract from the driver limit. It
@@ -522,21 +624,25 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
         debugfs_hw_add(local);
 
+        /*
+         * if the driver doesn't specify a max listen interval we
+         * use 5 which should be a safe default
+         */
         if (local->hw.max_listen_interval == 0)
-                local->hw.max_listen_interval = 1;
+                local->hw.max_listen_interval = 5;
 
         local->hw.conf.listen_interval = local->hw.max_listen_interval;
 
+        local->dynamic_ps_forced_timeout = -1;
+
         result = sta_info_start(local);
         if (result < 0)
                 goto fail_sta_info;
 
         result = ieee80211_wep_init(local);
-        if (result < 0) {
+        if (result < 0)
                 printk(KERN_DEBUG "%s: Failed to initialize wep: %d\n",
                        wiphy_name(local->hw.wiphy), result);
-                goto fail_wep;
-        }
 
         rtnl_lock();
 
@@ -561,40 +667,36 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
         ieee80211_led_init(local);
 
-        /* alloc internal scan request */
-        i = 0;
-        local->int_scan_req->ssids = &local->scan_ssid;
-        local->int_scan_req->n_ssids = 1;
-        for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
-                if (!hw->wiphy->bands[band])
-                        continue;
-                for (j = 0; j < hw->wiphy->bands[band]->n_channels; j++) {
-                        local->int_scan_req->channels[i] =
-                                &hw->wiphy->bands[band]->channels[j];
-                        i++;
-                }
-        }
-        local->int_scan_req->n_channels = i;
-
         local->network_latency_notifier.notifier_call =
                 ieee80211_max_network_latency;
         result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY,
                                      &local->network_latency_notifier);
-
         if (result) {
                 rtnl_lock();
                 goto fail_pm_qos;
         }
 
+#ifdef CONFIG_INET
+        local->ifa_notifier.notifier_call = ieee80211_ifa_changed;
+        result = register_inetaddr_notifier(&local->ifa_notifier);
+        if (result)
+                goto fail_ifa;
+#endif
+
         return 0;
 
+#ifdef CONFIG_INET
+ fail_ifa:
+        pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY,
+                               &local->network_latency_notifier);
+        rtnl_lock();
+#endif
  fail_pm_qos:
         ieee80211_led_exit(local);
         ieee80211_remove_interfaces(local);
  fail_rate:
         rtnl_unlock();
         ieee80211_wep_free(local);
- fail_wep:
         sta_info_stop(local);
  fail_sta_info:
         destroy_workqueue(local->workqueue);
@@ -615,6 +717,9 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 
         pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY,
                                &local->network_latency_notifier);
+#ifdef CONFIG_INET
+        unregister_inetaddr_notifier(&local->ifa_notifier);
+#endif
 
         rtnl_lock();
 
@@ -627,6 +732,12 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 
         rtnl_unlock();
 
+        /*
+         * Now all work items will be gone, but the
+         * timer might still be armed, so delete it
+         */
+        del_timer_sync(&local->work_timer);
+
         cancel_work_sync(&local->reconfig_filter);
 
         ieee80211_clear_tx_pending(local);
@@ -672,18 +783,33 @@ static int __init ieee80211_init(void)
         if (ret)
                 return ret;
 
+        ret = rc80211_minstrel_ht_init();
+        if (ret)
+                goto err_minstrel;
+
         ret = rc80211_pid_init();
         if (ret)
-                return ret;
+                goto err_pid;
 
-        ieee80211_debugfs_netdev_init();
+        ret = ieee80211_iface_init();
+        if (ret)
+                goto err_netdev;
 
         return 0;
+ err_netdev:
+        rc80211_pid_exit();
+ err_pid:
+        rc80211_minstrel_ht_exit();
+ err_minstrel:
+        rc80211_minstrel_exit();
+
+        return ret;
 }
 
 static void __exit ieee80211_exit(void)
 {
         rc80211_pid_exit();
+        rc80211_minstrel_ht_exit();
         rc80211_minstrel_exit();
 
         /*
@@ -695,7 +821,7 @@ static void __exit ieee80211_exit(void)
         if (mesh_allocated)
                 ieee80211s_stop();
 
-        ieee80211_debugfs_netdev_exit();
+        ieee80211_iface_exit();
 }