1 files changed, 40 insertions, 15 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 7b5131bd6fa1..93ee1fd5c08d 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -36,6 +36,15 @@ static bool nl80211_type_check(enum nl80211_iftype type)
 	}
 }
 
+static bool nl80211_params_check(enum nl80211_iftype type,
+				 struct vif_params *params)
+{
+	if (!nl80211_type_check(type))
+		return false;
+
+	return true;
+}
+
 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
 			       enum nl80211_iftype type, u32 *flags,
 			       struct vif_params *params)
@@ -45,7 +54,7 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
 	struct ieee80211_sub_if_data *sdata;
 	int err;
 
-	if (!nl80211_type_check(type))
+	if (!nl80211_params_check(type, params))
 		return -EINVAL;
 
 	err = ieee80211_if_add(local, name, &dev, type, params);
@@ -75,7 +84,7 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 	if (netif_running(dev))
 		return -EBUSY;
 
-	if (!nl80211_type_check(type))
+	if (!nl80211_params_check(type, params))
 		return -EINVAL;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -92,6 +101,13 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 	if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
 		return 0;
 
+	if (type == NL80211_IFTYPE_AP_VLAN &&
+	    params && params->use_4addr == 0)
+		rcu_assign_pointer(sdata->u.vlan.sta, NULL);
+	else if (type == NL80211_IFTYPE_STATION &&
+		 params && params->use_4addr >= 0)
+		sdata->u.mgd.use_4addr = params->use_4addr;
+
 	sdata->u.mntr_flags = *flags;
 	return 0;
 }
@@ -377,13 +393,13 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 				 int idx, u8 *mac, struct station_info *sinfo)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct sta_info *sta;
 	int ret = -ENOENT;
 
 	rcu_read_lock();
 
-	sta = sta_info_get_by_idx(local, idx, dev);
+	sta = sta_info_get_by_idx(sdata, idx);
 	if (sta) {
 		ret = 0;
 		memcpy(mac, sta->sta.addr, ETH_ALEN);
@@ -738,13 +754,6 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 
 	err = sta_info_insert(sta);
 	if (err) {
-		/* STA has been freed */
-		if (err == -EEXIST && layer2_update) {
-			/* Need to update layer 2 devices on reassociation */
-			sta = sta_info_get(local, mac);
-			if (sta)
-				ieee80211_send_layer2_update(sta);
-		}
 		rcu_read_unlock();
 		return err;
 	}
@@ -813,6 +822,15 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 			return -EINVAL;
 		}
 
+		if (params->vlan->ieee80211_ptr->use_4addr) {
+			if (vlansdata->u.vlan.sta) {
+				rcu_read_unlock();
+				return -EBUSY;
+			}
+
+			rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
+		}
+
 		sta->sdata = vlansdata;
 		ieee80211_send_layer2_update(sta);
 	}
@@ -914,7 +932,7 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 	pinfo->generation = mesh_paths_generation;
 
 	pinfo->filled = MPATH_INFO_FRAME_QLEN |
-			MPATH_INFO_DSN |
+			MPATH_INFO_SN |
 			MPATH_INFO_METRIC |
 			MPATH_INFO_EXPTIME |
 			MPATH_INFO_DISCOVERY_TIMEOUT |
@@ -922,7 +940,7 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 			MPATH_INFO_FLAGS;
 
 	pinfo->frame_qlen = mpath->frame_queue.qlen;
-	pinfo->dsn = mpath->dsn;
+	pinfo->sn = mpath->sn;
 	pinfo->metric = mpath->metric;
 	if (time_before(jiffies, mpath->exp_time))
 		pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
@@ -934,8 +952,8 @@ static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 		pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 	if (mpath->flags & MESH_PATH_RESOLVING)
 		pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
-	if (mpath->flags & MESH_PATH_DSN_VALID)
-		pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID;
+	if (mpath->flags & MESH_PATH_SN_VALID)
+		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)
@@ -1008,7 +1026,10 @@ static int ieee80211_set_mesh_params(struct wiphy *wiphy,
 {
 	struct mesh_config *conf;
 	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_if_mesh *ifmsh;
+
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	ifmsh = &sdata->u.mesh;
 
 	/* Set the config options which we are interested in setting */
 	conf = &(sdata->u.mesh.mshcfg);
@@ -1043,6 +1064,10 @@ static int ieee80211_set_mesh_params(struct wiphy *wiphy,
 			   mask))
 		conf->dot11MeshHWMPnetDiameterTraversalTime =
 			nconf->dot11MeshHWMPnetDiameterTraversalTime;
+	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
+		conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
+		ieee80211_mesh_root_setup(ifmsh);
+	}
 	return 0;
 }