1 files changed, 84 insertions, 28 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index d41974aacf5..05f3a313db8 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -20,7 +20,8 @@
 #include "rate.h"
 #include "mesh.h"
 
-static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, char *name,
+static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
+                                                const char *name,
                                                 enum nl80211_iftype type,
                                                 u32 *flags,
                                                 struct vif_params *params)
@@ -102,6 +103,18 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
         return 0;
 }
 
+static int ieee80211_start_p2p_device(struct wiphy *wiphy,
+                                      struct wireless_dev *wdev)
+{
+        return ieee80211_do_open(wdev, true);
+}
+
+static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
+                                      struct wireless_dev *wdev)
+{
+        ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
+}
+
 static int ieee80211_set_noack_map(struct wiphy *wiphy,
                                   struct net_device *dev,
                                   u16 noack_map)
@@ -158,6 +171,38 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
                 }
         }
 
+        switch (sdata->vif.type) {
+        case NL80211_IFTYPE_STATION:
+                if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
+                        key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
+                break;
+        case NL80211_IFTYPE_AP:
+        case NL80211_IFTYPE_AP_VLAN:
+                /* Keys without a station are used for TX only */
+                if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
+                        key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
+                break;
+        case NL80211_IFTYPE_ADHOC:
+                /* no MFP (yet) */
+                break;
+        case NL80211_IFTYPE_MESH_POINT:
+#ifdef CONFIG_MAC80211_MESH
+                if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
+                        key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
+                break;
+#endif
+        case NL80211_IFTYPE_WDS:
+        case NL80211_IFTYPE_MONITOR:
+        case NL80211_IFTYPE_P2P_DEVICE:
+        case NL80211_IFTYPE_UNSPECIFIED:
+        case NUM_NL80211_IFTYPES:
+        case NL80211_IFTYPE_P2P_CLIENT:
+        case NL80211_IFTYPE_P2P_GO:
+                /* shouldn't happen */
+                WARN_ON_ONCE(1);
+                break;
+        }
+
         err = ieee80211_key_link(key, sdata, sta);
         if (err)
                 ieee80211_key_free(sdata->local, key);
@@ -330,7 +375,7 @@ static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, in
         if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
                 struct ieee80211_supported_band *sband;
                 sband = sta->local->hw.wiphy->bands[
-                                sta->local->hw.conf.channel->band];
+                                sta->local->oper_channel->band];
                 rate->legacy = sband->bitrates[idx].bitrate;
         } else
                 rate->mcs = idx;
@@ -725,25 +770,23 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
                                     const u8 *resp, size_t resp_len)
 {
-        struct sk_buff *new, *old;
+        struct probe_resp *new, *old;
 
         if (!resp || !resp_len)
                 return 1;
 
         old = rtnl_dereference(sdata->u.ap.probe_resp);
 
-        new = dev_alloc_skb(resp_len);
+        new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
         if (!new)
                 return -ENOMEM;
 
-        memcpy(skb_put(new, resp_len), resp, resp_len);
+        new->len = resp_len;
+        memcpy(new->data, resp, resp_len);
 
         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
-        if (old) {
-                /* TODO: use call_rcu() */
-                synchronize_rcu();
-                dev_kfree_skb(old);
-        }
+        if (old)
+                kfree_rcu(old, rcu_head);
 
         return 0;
 }
@@ -950,7 +993,7 @@ static void ieee80211_send_layer2_update(struct sta_info *sta)
         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 
-        memset(msg->da, 0xff, ETH_ALEN);
+        eth_broadcast_addr(msg->da);
         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
         msg->len = htons(6);
         msg->dsap = 0;
@@ -1285,9 +1328,10 @@ static int ieee80211_change_station(struct wiphy *wiphy,
         mutex_unlock(&local->sta_mtx);
 
         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
-            params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
+            params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
                 ieee80211_recalc_ps(local, -1);
-
+                ieee80211_recalc_ps_vif(sdata);
+        }
         return 0;
 }
 
@@ -1378,6 +1422,8 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
         else
                 memset(next_hop, 0, ETH_ALEN);
 
+        memset(pinfo, 0, sizeof(*pinfo));
+
         pinfo->generation = mesh_paths_generation;
 
         pinfo->filled = MPATH_INFO_FRAME_QLEN |
@@ -1396,7 +1442,6 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
         pinfo->discovery_timeout =
                         jiffies_to_msecs(mpath->discovery_timeout);
         pinfo->discovery_retries = mpath->discovery_retries;
-        pinfo->flags = 0;
         if (mpath->flags & MESH_PATH_ACTIVE)
                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
         if (mpath->flags & MESH_PATH_RESOLVING)
@@ -1405,10 +1450,8 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
         if (mpath->flags & MESH_PATH_FIXED)
                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
-        if (mpath->flags & MESH_PATH_RESOLVING)
-                pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
-
-        pinfo->flags = mpath->flags;
+        if (mpath->flags & MESH_PATH_RESOLVED)
+                pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
 }
 
 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
@@ -1661,7 +1704,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
         }
 
         if (!sdata->vif.bss_conf.use_short_slot &&
-            sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
+            sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ) {
                 sdata->vif.bss_conf.use_short_slot = true;
                 changed |= BSS_CHANGED_ERP_SLOT;
         }
@@ -1775,6 +1818,7 @@ static int ieee80211_scan(struct wiphy *wiphy,
         case NL80211_IFTYPE_ADHOC:
         case NL80211_IFTYPE_MESH_POINT:
         case NL80211_IFTYPE_P2P_CLIENT:
+        case NL80211_IFTYPE_P2P_DEVICE:
                 break;
         case NL80211_IFTYPE_P2P_GO:
                 if (sdata->local->ops->hw_scan)
@@ -1927,7 +1971,7 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy,
                                   enum nl80211_tx_power_setting type, int mbm)
 {
         struct ieee80211_local *local = wiphy_priv(wiphy);
-        struct ieee80211_channel *chan = local->hw.conf.channel;
+        struct ieee80211_channel *chan = local->oper_channel;
         u32 changes = 0;
 
         switch (type) {
@@ -2027,9 +2071,7 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
          */
         if (!sdata->u.mgd.associated ||
             sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
-                mutex_lock(&sdata->local->iflist_mtx);
                 ieee80211_recalc_smps(sdata->local);
-                mutex_unlock(&sdata->local->iflist_mtx);
                 return 0;
         }
 
@@ -2079,6 +2121,7 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 
         ieee80211_recalc_ps(local, -1);
+        ieee80211_recalc_ps_vif(sdata);
 
         return 0;
 }
@@ -2461,6 +2504,9 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
                 if (!sdata->u.mgd.associated)
                         need_offchan = true;
                 break;
+        case NL80211_IFTYPE_P2P_DEVICE:
+                need_offchan = true;
+                break;
         default:
                 return -EOPNOTSUPP;
         }
@@ -2653,6 +2699,7 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
                                u16 status_code, struct sk_buff *skb)
 {
         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+        struct ieee80211_local *local = sdata->local;
         struct ieee80211_tdls_data *tf;
 
         tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
@@ -2672,8 +2719,10 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
                 tf->u.setup_req.capability =
                         cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-                ieee80211_add_srates_ie(sdata, skb, false);
-                ieee80211_add_ext_srates_ie(sdata, skb, false);
+                ieee80211_add_srates_ie(sdata, skb, false,
+                                        local->oper_channel->band);
+                ieee80211_add_ext_srates_ie(sdata, skb, false,
+                                            local->oper_channel->band);
                 ieee80211_tdls_add_ext_capab(skb);
                 break;
         case WLAN_TDLS_SETUP_RESPONSE:
@@ -2686,8 +2735,10 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
                 tf->u.setup_resp.capability =
                         cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-                ieee80211_add_srates_ie(sdata, skb, false);
-                ieee80211_add_ext_srates_ie(sdata, skb, false);
+                ieee80211_add_srates_ie(sdata, skb, false,
+                                        local->oper_channel->band);
+                ieee80211_add_ext_srates_ie(sdata, skb, false,
+                                            local->oper_channel->band);
                 ieee80211_tdls_add_ext_capab(skb);
                 break;
         case WLAN_TDLS_SETUP_CONFIRM:
@@ -2725,6 +2776,7 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
                            u16 status_code, struct sk_buff *skb)
 {
         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+        struct ieee80211_local *local = sdata->local;
         struct ieee80211_mgmt *mgmt;
 
         mgmt = (void *)skb_put(skb, 24);
@@ -2747,8 +2799,10 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
                 mgmt->u.action.u.tdls_discover_resp.capability =
                         cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-                ieee80211_add_srates_ie(sdata, skb, false);
-                ieee80211_add_ext_srates_ie(sdata, skb, false);
+                ieee80211_add_srates_ie(sdata, skb, false,
+                                        local->oper_channel->band);
+                ieee80211_add_ext_srates_ie(sdata, skb, false,
+                                            local->oper_channel->band);
                 ieee80211_tdls_add_ext_capab(skb);
                 break;
         default:
@@ -3005,6 +3059,8 @@ struct cfg80211_ops mac80211_config_ops = {
         .add_virtual_intf = ieee80211_add_iface,
         .del_virtual_intf = ieee80211_del_iface,
         .change_virtual_intf = ieee80211_change_iface,
+        .start_p2p_device = ieee80211_start_p2p_device,
+        .stop_p2p_device = ieee80211_stop_p2p_device,
         .add_key = ieee80211_add_key,
         .del_key = ieee80211_del_key,
         .get_key = ieee80211_get_key,