diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index e77e508..55a28ab 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -10,7 +10,7 @@
 obj-$(CONFIG_WEXT_PRIV) += wext-priv.o
 
 cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o
-cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o
+cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o mesh.o
 cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o
 cfg80211-$(CONFIG_CFG80211_WEXT) += wext-compat.o wext-sme.o
 cfg80211-$(CONFIG_CFG80211_INTERNAL_REGDB) += regdb.o
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 630bcf0..79772fc 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -332,6 +332,7 @@
 	WARN_ON(ops->add_virtual_intf && !ops->del_virtual_intf);
 	WARN_ON(ops->add_station && !ops->del_station);
 	WARN_ON(ops->add_mpath && !ops->del_mpath);
+	WARN_ON(ops->join_mesh && !ops->leave_mesh);
 
 	alloc_size = sizeof(*rdev) + sizeof_priv;
 
@@ -752,6 +753,9 @@
 			cfg80211_mlme_down(rdev, dev);
 			wdev_unlock(wdev);
 			break;
+		case NL80211_IFTYPE_MESH_POINT:
+			cfg80211_leave_mesh(rdev, dev);
+			break;
 		default:
 			break;
 		}
@@ -775,20 +779,27 @@
 		}
 		cfg80211_lock_rdev(rdev);
 		mutex_lock(&rdev->devlist_mtx);
-#ifdef CONFIG_CFG80211_WEXT
 		wdev_lock(wdev);
 		switch (wdev->iftype) {
+#ifdef CONFIG_CFG80211_WEXT
 		case NL80211_IFTYPE_ADHOC:
 			cfg80211_ibss_wext_join(rdev, wdev);
 			break;
 		case NL80211_IFTYPE_STATION:
 			cfg80211_mgd_wext_connect(rdev, wdev);
 			break;
+#endif
+		case NL80211_IFTYPE_MESH_POINT:
+			/* backward compat code ... */
+			if (wdev->mesh_id_up_len)
+				__cfg80211_join_mesh(rdev, dev, wdev->ssid,
+						     wdev->mesh_id_up_len,
+						     &default_mesh_config);
+			break;
 		default:
 			break;
 		}
 		wdev_unlock(wdev);
-#endif
 		rdev->opencount++;
 		mutex_unlock(&rdev->devlist_mtx);
 		cfg80211_unlock_rdev(rdev);
diff --git a/net/wireless/core.h b/net/wireless/core.h
index ee80ad8..743203b 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -285,6 +285,19 @@
 int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
 			    struct wireless_dev *wdev);
 
+/* mesh */
+extern const struct mesh_config default_mesh_config;
+int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev,
+			 const u8 *mesh_id, u8 mesh_id_len,
+			 const struct mesh_config *conf);
+int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev,
+		       const u8 *mesh_id, u8 mesh_id_len,
+		       const struct mesh_config *conf);
+int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
+			struct net_device *dev);
+
 /* MLME */
 int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 			 struct net_device *dev,
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
new file mode 100644
index 0000000..e0b9747
--- /dev/null
+++ b/net/wireless/mesh.c
@@ -0,0 +1,140 @@
+#include <linux/ieee80211.h>
+#include <net/cfg80211.h>
+#include "core.h"
+
+/* Default values, timeouts in ms */
+#define MESH_TTL 		31
+#define MESH_DEFAULT_ELEMENT_TTL 31
+#define MESH_MAX_RETR	 	3
+#define MESH_RET_T 		100
+#define MESH_CONF_T 		100
+#define MESH_HOLD_T 		100
+
+#define MESH_PATH_TIMEOUT	5000
+
+/*
+ * Minimum interval between two consecutive PREQs originated by the same
+ * interface
+ */
+#define MESH_PREQ_MIN_INT	10
+#define MESH_DIAM_TRAVERSAL_TIME 50
+
+/*
+ * A path will be refreshed if it is used PATH_REFRESH_TIME milliseconds
+ * before timing out.  This way it will remain ACTIVE and no data frames
+ * will be unnecessarily held in the pending queue.
+ */
+#define MESH_PATH_REFRESH_TIME			1000
+#define MESH_MIN_DISCOVERY_TIMEOUT (2 * MESH_DIAM_TRAVERSAL_TIME)
+
+/* Default maximum number of established plinks per interface */
+#define MESH_MAX_ESTAB_PLINKS	32
+
+#define MESH_MAX_PREQ_RETRIES	4
+
+
+const struct mesh_config default_mesh_config = {
+	.dot11MeshRetryTimeout = MESH_RET_T,
+	.dot11MeshConfirmTimeout = MESH_CONF_T,
+	.dot11MeshHoldingTimeout = MESH_HOLD_T,
+	.dot11MeshMaxRetries = MESH_MAX_RETR,
+	.dot11MeshTTL = MESH_TTL,
+	.element_ttl = MESH_DEFAULT_ELEMENT_TTL,
+	.auto_open_plinks = true,
+	.dot11MeshMaxPeerLinks = MESH_MAX_ESTAB_PLINKS,
+	.dot11MeshHWMPactivePathTimeout = MESH_PATH_TIMEOUT,
+	.dot11MeshHWMPpreqMinInterval = MESH_PREQ_MIN_INT,
+	.dot11MeshHWMPnetDiameterTraversalTime = MESH_DIAM_TRAVERSAL_TIME,
+	.dot11MeshHWMPmaxPREQretries = MESH_MAX_PREQ_RETRIES,
+	.path_refresh_time = MESH_PATH_REFRESH_TIME,
+	.min_discovery_timeout = MESH_MIN_DISCOVERY_TIMEOUT,
+};
+
+
+int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev,
+			 const u8 *mesh_id, u8 mesh_id_len,
+			 const struct mesh_config *conf)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct mesh_setup setup = {
+		.mesh_id = mesh_id,
+		.mesh_id_len = mesh_id_len,
+	};
+	int err;
+
+	BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != IEEE80211_MAX_MESH_ID_LEN);
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
+		return -EOPNOTSUPP;
+
+	if (wdev->mesh_id_len)
+		return -EALREADY;
+
+	if (!mesh_id_len)
+		return -EINVAL;
+
+	if (!rdev->ops->join_mesh)
+		return -EOPNOTSUPP;
+
+	err = rdev->ops->join_mesh(&rdev->wiphy, dev, conf, &setup);
+	if (!err) {
+		memcpy(wdev->ssid, mesh_id, mesh_id_len);
+		wdev->mesh_id_len = mesh_id_len;
+	}
+
+	return err;
+}
+
+int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev,
+		       const u8 *mesh_id, u8 mesh_id_len,
+		       const struct mesh_config *conf)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	int err;
+
+	wdev_lock(wdev);
+	err = __cfg80211_join_mesh(rdev, dev, mesh_id, mesh_id_len, conf);
+	wdev_unlock(wdev);
+
+	return err;
+}
+
+static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
+				 struct net_device *dev)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	int err;
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
+		return -EOPNOTSUPP;
+
+	if (!rdev->ops->leave_mesh)
+		return -EOPNOTSUPP;
+
+	if (!wdev->mesh_id_len)
+		return -ENOTCONN;
+
+	err = rdev->ops->leave_mesh(&rdev->wiphy, dev);
+	if (!err)
+		wdev->mesh_id_len = 0;
+	return err;
+}
+
+int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
+			struct net_device *dev)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	int err;
+
+	wdev_lock(wdev);
+	err = __cfg80211_leave_mesh(rdev, dev);
+	wdev_unlock(wdev);
+
+	return err;
+}
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index c8d4d53..56508d4 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -661,13 +661,14 @@
 	CMD(add_beacon, NEW_BEACON);
 	CMD(add_station, NEW_STATION);
 	CMD(add_mpath, NEW_MPATH);
-	CMD(set_mesh_params, SET_MESH_PARAMS);
+	CMD(update_mesh_params, SET_MESH_PARAMS);
 	CMD(change_bss, SET_BSS);
 	CMD(auth, AUTHENTICATE);
 	CMD(assoc, ASSOCIATE);
 	CMD(deauth, DEAUTHENTICATE);
 	CMD(disassoc, DISASSOCIATE);
 	CMD(join_ibss, JOIN_IBSS);
+	CMD(join_mesh, JOIN_MESH);
 	CMD(set_pmksa, SET_PMKSA);
 	CMD(del_pmksa, DEL_PMKSA);
 	CMD(flush_pmksa, FLUSH_PMKSA);
@@ -1324,11 +1325,21 @@
 	}
 
 	if (info->attrs[NL80211_ATTR_MESH_ID]) {
+		struct wireless_dev *wdev = dev->ieee80211_ptr;
+
 		if (ntype != NL80211_IFTYPE_MESH_POINT)
 			return -EINVAL;
-		params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
-		params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
-		change = true;
+		if (netif_running(dev))
+			return -EBUSY;
+
+		wdev_lock(wdev);
+		BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
+			     IEEE80211_MAX_MESH_ID_LEN);
+		wdev->mesh_id_up_len =
+			nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
+		memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
+		       wdev->mesh_id_up_len);
+		wdev_unlock(wdev);
 	}
 
 	if (info->attrs[NL80211_ATTR_4ADDR]) {
@@ -1388,12 +1399,6 @@
 	    !(rdev->wiphy.interface_modes & (1 << type)))
 		return -EOPNOTSUPP;
 
-	if (type == NL80211_IFTYPE_MESH_POINT &&
-	    info->attrs[NL80211_ATTR_MESH_ID]) {
-		params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
-		params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
-	}
-
 	if (info->attrs[NL80211_ATTR_4ADDR]) {
 		params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
 		err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
@@ -1410,6 +1415,20 @@
 	if (IS_ERR(dev))
 		return PTR_ERR(dev);
 
+	if (type == NL80211_IFTYPE_MESH_POINT &&
+	    info->attrs[NL80211_ATTR_MESH_ID]) {
+		struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+		wdev_lock(wdev);
+		BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
+			     IEEE80211_MAX_MESH_ID_LEN);
+		wdev->mesh_id_up_len =
+			nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
+		memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
+		       wdev->mesh_id_up_len);
+		wdev_unlock(wdev);
+	}
+
 	return 0;
 }
 
@@ -2543,21 +2562,32 @@
 }
 
 static int nl80211_get_mesh_params(struct sk_buff *skb,
-	struct genl_info *info)
+				   struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
-	struct mesh_config cur_params;
-	int err;
 	struct net_device *dev = info->user_ptr[1];
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct mesh_config cur_params;
+	int err = 0;
 	void *hdr;
 	struct nlattr *pinfoattr;
 	struct sk_buff *msg;
 
+	if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
+		return -EOPNOTSUPP;
+
 	if (!rdev->ops->get_mesh_params)
 		return -EOPNOTSUPP;
 
-	/* Get the mesh params */
-	err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
+	wdev_lock(wdev);
+	/* If not connected, get default parameters */
+	if (!wdev->mesh_id_len)
+		memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
+	else
+		err = rdev->ops->get_mesh_params(&rdev->wiphy, dev,
+						 &cur_params);
+	wdev_unlock(wdev);
+
 	if (err)
 		return err;
 
@@ -2705,23 +2735,37 @@
 #undef FILL_IN_MESH_PARAM_IF_SET
 }
 
-static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
+static int nl80211_update_mesh_params(struct sk_buff *skb,
+				      struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
 	struct net_device *dev = info->user_ptr[1];
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct mesh_config cfg;
 	u32 mask;
 	int err;
 
-	if (!rdev->ops->set_mesh_params)
+	if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
+		return -EOPNOTSUPP;
+
+	if (!rdev->ops->update_mesh_params)
 		return -EOPNOTSUPP;
 
 	err = nl80211_parse_mesh_params(info, &cfg, &mask);
 	if (err)
 		return err;
 
-	/* Apply changes */
-	return rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
+	wdev_lock(wdev);
+	if (!wdev->mesh_id_len)
+		err = -ENOLINK;
+
+	if (!err)
+		err = rdev->ops->update_mesh_params(&rdev->wiphy, dev,
+						    mask, &cfg);
+
+	wdev_unlock(wdev);
+
+	return err;
 }
 
 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
@@ -4505,6 +4549,41 @@
 	return err;
 }
 
+static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *rdev = info->user_ptr[0];
+	struct net_device *dev = info->user_ptr[1];
+	struct mesh_config cfg;
+	int err;
+
+	/* start with default */
+	memcpy(&cfg, &default_mesh_config, sizeof(cfg));
+
+	if (info->attrs[NL80211_ATTR_MESH_PARAMS]) {
+		/* and parse parameters if given */
+		err = nl80211_parse_mesh_params(info, &cfg, NULL);
+		if (err)
+			return err;
+	}
+
+	if (!info->attrs[NL80211_ATTR_MESH_ID] ||
+	    !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
+		return -EINVAL;
+
+	return cfg80211_join_mesh(rdev, dev,
+				  nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
+				  nla_len(info->attrs[NL80211_ATTR_MESH_ID]),
+				  &cfg);
+}
+
+static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *rdev = info->user_ptr[0];
+	struct net_device *dev = info->user_ptr[1];
+
+	return cfg80211_leave_mesh(rdev, dev);
+}
+
 #define NL80211_FLAG_NEED_WIPHY		0x01
 #define NL80211_FLAG_NEED_NETDEV	0x02
 #define NL80211_FLAG_NEED_RTNL		0x04
@@ -4769,10 +4848,10 @@
 	},
 	{
 		.cmd = NL80211_CMD_SET_MESH_PARAMS,
-		.doit = nl80211_set_mesh_params,
+		.doit = nl80211_update_mesh_params,
 		.policy = nl80211_policy,
 		.flags = GENL_ADMIN_PERM,
-		.internal_flags = NL80211_FLAG_NEED_NETDEV |
+		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
 				  NL80211_FLAG_NEED_RTNL,
 	},
 	{
@@ -4987,6 +5066,22 @@
 		.internal_flags = NL80211_FLAG_NEED_NETDEV |
 				  NL80211_FLAG_NEED_RTNL,
 	},
+	{
+		.cmd = NL80211_CMD_JOIN_MESH,
+		.doit = nl80211_join_mesh,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
+				  NL80211_FLAG_NEED_RTNL,
+	},
+	{
+		.cmd = NL80211_CMD_LEAVE_MESH,
+		.doit = nl80211_leave_mesh,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
+				  NL80211_FLAG_NEED_RTNL,
+	},
 };
 
 static struct genl_multicast_group nl80211_mlme_mcgrp = {
diff --git a/net/wireless/util.c b/net/wireless/util.c
index fee020b..4de624c 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -792,6 +792,7 @@
 
 	if (ntype != otype) {
 		dev->ieee80211_ptr->use_4addr = false;
+		dev->ieee80211_ptr->mesh_id_up_len = 0;
 
 		switch (otype) {
 		case NL80211_IFTYPE_ADHOC: