]> Pileus Git - ~andy/linux/blobdiff - net/wireless/mlme.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
[~andy/linux] / net / wireless / mlme.c
index 5e8123ee63fd316d48e224fe65b8336300ec2b79..caddca35d6865b4506d5d98466f54c7b82eabeba 100644 (file)
@@ -58,7 +58,7 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
         */
        if (status_code != WLAN_STATUS_SUCCESS && wdev->conn &&
            cfg80211_sme_failed_reassoc(wdev)) {
-               cfg80211_put_bss(bss);
+               cfg80211_put_bss(wiphy, bss);
                goto out;
        }
 
@@ -70,7 +70,7 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
                 * do not call connect_result() now because the
                 * sme will schedule work that does it later.
                 */
-               cfg80211_put_bss(bss);
+               cfg80211_put_bss(wiphy, bss);
                goto out;
        }
 
@@ -108,7 +108,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
        if (wdev->current_bss &&
            ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
                cfg80211_unhold_bss(wdev->current_bss);
-               cfg80211_put_bss(&wdev->current_bss->pub);
+               cfg80211_put_bss(wiphy, &wdev->current_bss->pub);
                wdev->current_bss = NULL;
                was_current = true;
        }
@@ -164,7 +164,7 @@ void __cfg80211_send_disassoc(struct net_device *dev,
            ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
                cfg80211_sme_disassoc(dev, wdev->current_bss);
                cfg80211_unhold_bss(wdev->current_bss);
-               cfg80211_put_bss(&wdev->current_bss->pub);
+               cfg80211_put_bss(wiphy, &wdev->current_bss->pub);
                wdev->current_bss = NULL;
        } else
                WARN_ON(1);
@@ -324,7 +324,7 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
        err = rdev_auth(rdev, dev, &req);
 
 out:
-       cfg80211_put_bss(req.bss);
+       cfg80211_put_bss(&rdev->wiphy, req.bss);
        return err;
 }
 
@@ -432,7 +432,7 @@ out:
        if (err) {
                if (was_connected)
                        wdev->sme_state = CFG80211_SME_CONNECTED;
-               cfg80211_put_bss(req.bss);
+               cfg80211_put_bss(&rdev->wiphy, req.bss);
        }
 
        return err;
@@ -514,7 +514,7 @@ static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
        if (wdev->sme_state != CFG80211_SME_CONNECTED)
                return -ENOTCONN;
 
-       if (WARN_ON(!wdev->current_bss))
+       if (WARN(!wdev->current_bss, "sme_state=%d\n", wdev->sme_state))
                return -ENOTCONN;
 
        memset(&req, 0, sizeof(req));
@@ -572,7 +572,7 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 
        if (wdev->current_bss) {
                cfg80211_unhold_bss(wdev->current_bss);
-               cfg80211_put_bss(&wdev->current_bss->pub);
+               cfg80211_put_bss(&rdev->wiphy, &wdev->current_bss->pub);
                wdev->current_bss = NULL;
        }
 }
@@ -988,64 +988,122 @@ void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
 }
 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
 
-void cfg80211_ch_switch_notify(struct net_device *dev,
-                              struct cfg80211_chan_def *chandef)
+void cfg80211_dfs_channels_update_work(struct work_struct *work)
 {
-       struct wireless_dev *wdev = dev->ieee80211_ptr;
-       struct wiphy *wiphy = wdev->wiphy;
-       struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+       struct delayed_work *delayed_work;
+       struct cfg80211_registered_device *rdev;
+       struct cfg80211_chan_def chandef;
+       struct ieee80211_supported_band *sband;
+       struct ieee80211_channel *c;
+       struct wiphy *wiphy;
+       bool check_again = false;
+       unsigned long timeout, next_time = 0;
+       int bandid, i;
+
+       delayed_work = container_of(work, struct delayed_work, work);
+       rdev = container_of(delayed_work, struct cfg80211_registered_device,
+                           dfs_update_channels_wk);
+       wiphy = &rdev->wiphy;
+
+       mutex_lock(&cfg80211_mutex);
+       for (bandid = 0; bandid < IEEE80211_NUM_BANDS; bandid++) {
+               sband = wiphy->bands[bandid];
+               if (!sband)
+                       continue;
 
-       trace_cfg80211_ch_switch_notify(dev, chandef);
+               for (i = 0; i < sband->n_channels; i++) {
+                       c = &sband->channels[i];
 
-       wdev_lock(wdev);
+                       if (c->dfs_state != NL80211_DFS_UNAVAILABLE)
+                               continue;
 
-       if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
-                   wdev->iftype != NL80211_IFTYPE_P2P_GO))
-               goto out;
+                       timeout = c->dfs_state_entered +
+                                 IEEE80211_DFS_MIN_NOP_TIME_MS;
 
-       wdev->channel = chandef->chan;
-       nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
-out:
-       wdev_unlock(wdev);
-       return;
+                       if (time_after_eq(jiffies, timeout)) {
+                               c->dfs_state = NL80211_DFS_USABLE;
+                               cfg80211_chandef_create(&chandef, c,
+                                                       NL80211_CHAN_NO_HT);
+
+                               nl80211_radar_notify(rdev, &chandef,
+                                                    NL80211_RADAR_NOP_FINISHED,
+                                                    NULL, GFP_ATOMIC);
+                               continue;
+                       }
+
+                       if (!check_again)
+                               next_time = timeout - jiffies;
+                       else
+                               next_time = min(next_time, timeout - jiffies);
+                       check_again = true;
+               }
+       }
+       mutex_unlock(&cfg80211_mutex);
+
+       /* reschedule if there are other channels waiting to be cleared again */
+       if (check_again)
+               queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk,
+                                  next_time);
 }
-EXPORT_SYMBOL(cfg80211_ch_switch_notify);
 
-bool cfg80211_rx_spurious_frame(struct net_device *dev,
-                               const u8 *addr, gfp_t gfp)
+
+void cfg80211_radar_event(struct wiphy *wiphy,
+                         struct cfg80211_chan_def *chandef,
+                         gfp_t gfp)
 {
-       struct wireless_dev *wdev = dev->ieee80211_ptr;
-       bool ret;
+       struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+       unsigned long timeout;
 
-       trace_cfg80211_rx_spurious_frame(dev, addr);
+       trace_cfg80211_radar_event(wiphy, chandef);
 
-       if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
-                   wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
-               trace_cfg80211_return_bool(false);
-               return false;
-       }
-       ret = nl80211_unexpected_frame(dev, addr, gfp);
-       trace_cfg80211_return_bool(ret);
-       return ret;
+       /* only set the chandef supplied channel to unavailable, in
+        * case the radar is detected on only one of multiple channels
+        * spanned by the chandef.
+        */
+       cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_UNAVAILABLE);
+
+       timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_NOP_TIME_MS);
+       queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk,
+                          timeout);
+
+       nl80211_radar_notify(rdev, chandef, NL80211_RADAR_DETECTED, NULL, gfp);
 }
-EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
+EXPORT_SYMBOL(cfg80211_radar_event);
 
-bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
-                                       const u8 *addr, gfp_t gfp)
+void cfg80211_cac_event(struct net_device *netdev,
+                       enum nl80211_radar_event event, gfp_t gfp)
 {
-       struct wireless_dev *wdev = dev->ieee80211_ptr;
-       bool ret;
+       struct wireless_dev *wdev = netdev->ieee80211_ptr;
+       struct wiphy *wiphy = wdev->wiphy;
+       struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+       struct cfg80211_chan_def chandef;
+       unsigned long timeout;
 
-       trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
+       trace_cfg80211_cac_event(netdev, event);
 
-       if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
-                   wdev->iftype != NL80211_IFTYPE_P2P_GO &&
-                   wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
-               trace_cfg80211_return_bool(false);
-               return false;
+       if (WARN_ON(!wdev->cac_started))
+               return;
+
+       if (WARN_ON(!wdev->channel))
+               return;
+
+       cfg80211_chandef_create(&chandef, wdev->channel, NL80211_CHAN_NO_HT);
+
+       switch (event) {
+       case NL80211_RADAR_CAC_FINISHED:
+               timeout = wdev->cac_start_time +
+                         msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
+               WARN_ON(!time_after_eq(jiffies, timeout));
+               cfg80211_set_dfs_state(wiphy, &chandef, NL80211_DFS_AVAILABLE);
+               break;
+       case NL80211_RADAR_CAC_ABORTED:
+               break;
+       default:
+               WARN_ON(1);
+               return;
        }
-       ret = nl80211_unexpected_4addr_frame(dev, addr, gfp);
-       trace_cfg80211_return_bool(ret);
-       return ret;
+       wdev->cac_started = false;
+
+       nl80211_radar_notify(rdev, &chandef, event, netdev, gfp);
 }
-EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
+EXPORT_SYMBOL(cfg80211_cac_event);