1 files changed, 432 insertions, 65 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 3d1b091d9b2e..d06c65fa5526 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -12,6 +12,7 @@
 #include <linux/slab.h>
 #include <net/net_namespace.h>
 #include <linux/rcupdate.h>
+#include <linux/if_ether.h>
 #include <net/cfg80211.h>
 #include "ieee80211_i.h"
 #include "driver-ops.h"
@@ -62,7 +63,7 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 
 	if (type == NL80211_IFTYPE_AP_VLAN &&
 	    params && params->use_4addr == 0)
-		rcu_assign_pointer(sdata->u.vlan.sta, NULL);
+		RCU_INIT_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;
@@ -343,7 +344,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 			STATION_INFO_RX_BITRATE |
 			STATION_INFO_RX_DROP_MISC |
 			STATION_INFO_BSS_PARAM |
-			STATION_INFO_CONNECTED_TIME;
+			STATION_INFO_CONNECTED_TIME |
+			STATION_INFO_STA_FLAGS;
 
 	do_posix_clock_monotonic_gettime(&uptime);
 	sinfo->connected_time = uptime.tv_sec - sta->last_connected;
@@ -403,6 +405,23 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 		sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 	sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
 	sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
+
+	sinfo->sta_flags.set = 0;
+	sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
+				BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
+				BIT(NL80211_STA_FLAG_WME) |
+				BIT(NL80211_STA_FLAG_MFP) |
+				BIT(NL80211_STA_FLAG_AUTHENTICATED);
+	if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
+	if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
+	if (test_sta_flag(sta, WLAN_STA_WME))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
+	if (test_sta_flag(sta, WLAN_STA_MFP))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
+	if (test_sta_flag(sta, WLAN_STA_AUTH))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
 }
 
 
@@ -455,6 +474,20 @@ static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 	return ret;
 }
 
+static void ieee80211_config_ap_ssid(struct ieee80211_sub_if_data *sdata,
+				     struct beacon_parameters *params)
+{
+	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
+
+	bss_conf->ssid_len = params->ssid_len;
+
+	if (params->ssid_len)
+		memcpy(bss_conf->ssid, params->ssid, params->ssid_len);
+
+	bss_conf->hidden_ssid =
+		(params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
+}
+
 /*
  * This handles both adding a beacon and setting new beacon info
  */
@@ -542,14 +575,17 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 
 	sdata->vif.bss_conf.dtim_period = new->dtim_period;
 
-	rcu_assign_pointer(sdata->u.ap.beacon, new);
+	RCU_INIT_POINTER(sdata->u.ap.beacon, new);
 
 	synchronize_rcu();
 
 	kfree(old);
 
+	ieee80211_config_ap_ssid(sdata, params);
+
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
-						BSS_CHANGED_BEACON);
+						BSS_CHANGED_BEACON |
+						BSS_CHANGED_SSID);
 	return 0;
 }
 
@@ -594,7 +630,7 @@ static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 	if (!old)
 		return -ENOENT;
 
-	rcu_assign_pointer(sdata->u.ap.beacon, NULL);
+	RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
 	synchronize_rcu();
 	kfree(old);
 
@@ -650,7 +686,6 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 				 struct sta_info *sta,
 				 struct station_parameters *params)
 {
-	unsigned long flags;
 	u32 rates;
 	int i, j;
 	struct ieee80211_supported_band *sband;
@@ -659,43 +694,58 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 
 	sband = local->hw.wiphy->bands[local->oper_channel->band];
 
-	spin_lock_irqsave(&sta->flaglock, flags);
 	mask = params->sta_flags_mask;
 	set = params->sta_flags_set;
 
 	if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
-		sta->flags &= ~WLAN_STA_AUTHORIZED;
 		if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
-			sta->flags |= WLAN_STA_AUTHORIZED;
+			set_sta_flag(sta, WLAN_STA_AUTHORIZED);
+		else
+			clear_sta_flag(sta, WLAN_STA_AUTHORIZED);
 	}
 
 	if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
-		sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 		if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
-			sta->flags |= WLAN_STA_SHORT_PREAMBLE;
+			set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
+		else
+			clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
 	}
 
 	if (mask & BIT(NL80211_STA_FLAG_WME)) {
-		sta->flags &= ~WLAN_STA_WME;
-		sta->sta.wme = false;
 		if (set & BIT(NL80211_STA_FLAG_WME)) {
-			sta->flags |= WLAN_STA_WME;
+			set_sta_flag(sta, WLAN_STA_WME);
 			sta->sta.wme = true;
+		} else {
+			clear_sta_flag(sta, WLAN_STA_WME);
+			sta->sta.wme = false;
 		}
 	}
 
 	if (mask & BIT(NL80211_STA_FLAG_MFP)) {
-		sta->flags &= ~WLAN_STA_MFP;
 		if (set & BIT(NL80211_STA_FLAG_MFP))
-			sta->flags |= WLAN_STA_MFP;
+			set_sta_flag(sta, WLAN_STA_MFP);
+		else
+			clear_sta_flag(sta, WLAN_STA_MFP);
 	}
 
 	if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
-		sta->flags &= ~WLAN_STA_AUTH;
 		if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
-			sta->flags |= WLAN_STA_AUTH;
+			set_sta_flag(sta, WLAN_STA_AUTH);
+		else
+			clear_sta_flag(sta, WLAN_STA_AUTH);
+	}
+
+	if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
+		if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
+			set_sta_flag(sta, WLAN_STA_TDLS_PEER);
+		else
+			clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
+	}
+
+	if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
+		sta->sta.uapsd_queues = params->uapsd_queues;
+		sta->sta.max_sp = params->max_sp;
 	}
-	spin_unlock_irqrestore(&sta->flaglock, flags);
 
 	/*
 	 * cfg80211 validates this (1-2007) and allows setting the AID
@@ -782,11 +832,18 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 	if (is_multicast_ether_addr(mac))
 		return -EINVAL;
 
+	/* Only TDLS-supporting stations can add TDLS peers */
+	if ((params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
+	    !((wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
+	      sdata->vif.type == NL80211_IFTYPE_STATION))
+		return -ENOTSUPP;
+
 	sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 	if (!sta)
 		return -ENOMEM;
 
-	sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
+	set_sta_flag(sta, WLAN_STA_AUTH);
+	set_sta_flag(sta, WLAN_STA_ASSOC);
 
 	sta_apply_parameters(local, sta, params);
 
@@ -842,6 +899,14 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 		return -ENOENT;
 	}
 
+	/* The TDLS bit cannot be toggled after the STA was added */
+	if ((params->sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
+	    !!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) !=
+	    !!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
+		rcu_read_unlock();
+		return -EINVAL;
+	}
+
 	if (params->vlan && params->vlan != sta->sdata->dev) {
 		vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 
@@ -857,7 +922,7 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 				return -EBUSY;
 			}
 
-			rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
+			RCU_INIT_POINTER(vlansdata->u.vlan.sta, sta);
 		}
 
 		sta->sdata = vlansdata;
@@ -918,7 +983,7 @@ static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 	if (dst)
 		return mesh_path_del(dst, sdata);
 
-	mesh_path_flush(sdata);
+	mesh_path_flush_by_iface(sdata);
 	return 0;
 }
 
@@ -1137,6 +1202,22 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
 		conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
 		ieee80211_mesh_root_setup(ifmsh);
 	}
+	if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
+		/* our current gate announcement implementation rides on root
+		 * announcements, so require this ifmsh to also be a root node
+		 * */
+		if (nconf->dot11MeshGateAnnouncementProtocol &&
+		    !conf->dot11MeshHWMPRootMode) {
+			conf->dot11MeshHWMPRootMode = 1;
+			ieee80211_mesh_root_setup(ifmsh);
+		}
+		conf->dot11MeshGateAnnouncementProtocol =
+			nconf->dot11MeshGateAnnouncementProtocol;
+	}
+	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) {
+		conf->dot11MeshHWMPRannInterval =
+			nconf->dot11MeshHWMPRannInterval;
+	}
 	return 0;
 }
 
@@ -1235,9 +1316,11 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 }
 
 static int ieee80211_set_txq_params(struct wiphy *wiphy,
+				    struct net_device *dev,
 				    struct ieee80211_txq_params *params)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_tx_queue_params p;
 
 	if (!local->ops->conf_tx)
@@ -1258,8 +1341,8 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
 	if (params->queue >= local->hw.queues)
 		return -EINVAL;
 
-	local->tx_conf[params->queue] = p;
-	if (drv_conf_tx(local, params->queue, &p)) {
+	sdata->tx_conf[params->queue] = p;
+	if (drv_conf_tx(local, sdata, params->queue, &p)) {
 		wiphy_debug(local->hw.wiphy,
 			    "failed to set TX queue parameters for queue %d\n",
 			    params->queue);
@@ -1821,7 +1904,7 @@ ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
 	 * so in that case userspace will have to deal with it.
 	 */
 
-	if (wk->offchan_tx.wait && wk->offchan_tx.frame)
+	if (wk->offchan_tx.wait && !wk->offchan_tx.status)
 		cfg80211_mgmt_tx_status(wk->sdata->dev,
 					(unsigned long) wk->offchan_tx.frame,
 					wk->ie, wk->ie_len, false, GFP_KERNEL);
@@ -1833,7 +1916,8 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
 			     struct ieee80211_channel *chan, bool offchan,
 			     enum nl80211_channel_type channel_type,
 			     bool channel_type_valid, unsigned int wait,
-			     const u8 *buf, size_t len, u64 *cookie)
+			     const u8 *buf, size_t len, bool no_cck,
+			     u64 *cookie)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
@@ -1860,6 +1944,9 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
 		flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
 	}
 
+	if (no_cck)
+		flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
+
 	if (is_offchan && !offchan)
 		return -EBUSY;
 
@@ -1898,33 +1985,6 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
 
 	*cookie = (unsigned long) skb;
 
-	if (is_offchan && local->ops->offchannel_tx) {
-		int ret;
-
-		IEEE80211_SKB_CB(skb)->band = chan->band;
-
-		mutex_lock(&local->mtx);
-
-		if (local->hw_offchan_tx_cookie) {
-			mutex_unlock(&local->mtx);
-			return -EBUSY;
-		}
-
-		/* TODO: bitrate control, TX processing? */
-		ret = drv_offchannel_tx(local, skb, chan, channel_type, wait);
-
-		if (ret == 0)
-			local->hw_offchan_tx_cookie = *cookie;
-		mutex_unlock(&local->mtx);
-
-		/*
-		 * Allow driver to return 1 to indicate it wants to have the
-		 * frame transmitted with a remain_on_channel + regular TX.
-		 */
-		if (ret != 1)
-			return ret;
-	}
-
 	if (is_offchan && local->ops->remain_on_channel) {
 		unsigned int duration;
 		int ret;
@@ -2011,18 +2071,6 @@ static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
 
 	mutex_lock(&local->mtx);
 
-	if (local->ops->offchannel_tx_cancel_wait &&
-	    local->hw_offchan_tx_cookie == cookie) {
-		ret = drv_offchannel_tx_cancel_wait(local);
-
-		if (!ret)
-			local->hw_offchan_tx_cookie = 0;
-
-		mutex_unlock(&local->mtx);
-
-		return ret;
-	}
-
 	if (local->ops->cancel_remain_on_channel) {
 		cookie ^= 2;
 		ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
@@ -2123,6 +2171,323 @@ static int ieee80211_set_rekey_data(struct wiphy *wiphy,
 	return 0;
 }
 
+static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
+{
+	u8 *pos = (void *)skb_put(skb, 7);
+
+	*pos++ = WLAN_EID_EXT_CAPABILITY;
+	*pos++ = 5; /* len */
+	*pos++ = 0x0;
+	*pos++ = 0x0;
+	*pos++ = 0x0;
+	*pos++ = 0x0;
+	*pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
+}
+
+static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+	u16 capab;
+
+	capab = 0;
+	if (local->oper_channel->band != IEEE80211_BAND_2GHZ)
+		return capab;
+
+	if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
+		capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
+	if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
+		capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
+
+	return capab;
+}
+
+static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
+				       u8 *peer, u8 *bssid)
+{
+	struct ieee80211_tdls_lnkie *lnkid;
+
+	lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
+
+	lnkid->ie_type = WLAN_EID_LINK_ID;
+	lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
+
+	memcpy(lnkid->bssid, bssid, ETH_ALEN);
+	memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
+	memcpy(lnkid->resp_sta, peer, ETH_ALEN);
+}
+
+static int
+ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
+			       u8 *peer, u8 action_code, u8 dialog_token,
+			       u16 status_code, struct sk_buff *skb)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_tdls_data *tf;
+
+	tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
+
+	memcpy(tf->da, peer, ETH_ALEN);
+	memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
+	tf->ether_type = cpu_to_be16(ETH_P_TDLS);
+	tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
+
+	switch (action_code) {
+	case WLAN_TDLS_SETUP_REQUEST:
+		tf->category = WLAN_CATEGORY_TDLS;
+		tf->action_code = WLAN_TDLS_SETUP_REQUEST;
+
+		skb_put(skb, sizeof(tf->u.setup_req));
+		tf->u.setup_req.dialog_token = dialog_token;
+		tf->u.setup_req.capability =
+			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
+
+		ieee80211_add_srates_ie(&sdata->vif, skb);
+		ieee80211_add_ext_srates_ie(&sdata->vif, skb);
+		ieee80211_tdls_add_ext_capab(skb);
+		break;
+	case WLAN_TDLS_SETUP_RESPONSE:
+		tf->category = WLAN_CATEGORY_TDLS;
+		tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
+
+		skb_put(skb, sizeof(tf->u.setup_resp));
+		tf->u.setup_resp.status_code = cpu_to_le16(status_code);
+		tf->u.setup_resp.dialog_token = dialog_token;
+		tf->u.setup_resp.capability =
+			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
+
+		ieee80211_add_srates_ie(&sdata->vif, skb);
+		ieee80211_add_ext_srates_ie(&sdata->vif, skb);
+		ieee80211_tdls_add_ext_capab(skb);
+		break;
+	case WLAN_TDLS_SETUP_CONFIRM:
+		tf->category = WLAN_CATEGORY_TDLS;
+		tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
+
+		skb_put(skb, sizeof(tf->u.setup_cfm));
+		tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
+		tf->u.setup_cfm.dialog_token = dialog_token;
+		break;
+	case WLAN_TDLS_TEARDOWN:
+		tf->category = WLAN_CATEGORY_TDLS;
+		tf->action_code = WLAN_TDLS_TEARDOWN;
+
+		skb_put(skb, sizeof(tf->u.teardown));
+		tf->u.teardown.reason_code = cpu_to_le16(status_code);
+		break;
+	case WLAN_TDLS_DISCOVERY_REQUEST:
+		tf->category = WLAN_CATEGORY_TDLS;
+		tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
+
+		skb_put(skb, sizeof(tf->u.discover_req));
+		tf->u.discover_req.dialog_token = dialog_token;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int
+ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
+			   u8 *peer, u8 action_code, u8 dialog_token,
+			   u16 status_code, struct sk_buff *skb)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_mgmt *mgmt;
+
+	mgmt = (void *)skb_put(skb, 24);
+	memset(mgmt, 0, 24);
+	memcpy(mgmt->da, peer, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
+	memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
+
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_ACTION);
+
+	switch (action_code) {
+	case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
+		skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
+		mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
+		mgmt->u.action.u.tdls_discover_resp.action_code =
+			WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
+		mgmt->u.action.u.tdls_discover_resp.dialog_token =
+			dialog_token;
+		mgmt->u.action.u.tdls_discover_resp.capability =
+			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
+
+		ieee80211_add_srates_ie(&sdata->vif, skb);
+		ieee80211_add_ext_srates_ie(&sdata->vif, skb);
+		ieee80211_tdls_add_ext_capab(skb);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
+			       u8 *peer, u8 action_code, u8 dialog_token,
+			       u16 status_code, const u8 *extra_ies,
+			       size_t extra_ies_len)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_tx_info *info;
+	struct sk_buff *skb = NULL;
+	bool send_direct;
+	int ret;
+
+	if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
+		return -ENOTSUPP;
+
+	/* make sure we are in managed mode, and associated */
+	if (sdata->vif.type != NL80211_IFTYPE_STATION ||
+	    !sdata->u.mgd.associated)
+		return -EINVAL;
+
+#ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG
+	printk(KERN_DEBUG "TDLS mgmt action %d peer %pM\n", action_code, peer);
+#endif
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+			    max(sizeof(struct ieee80211_mgmt),
+				sizeof(struct ieee80211_tdls_data)) +
+			    50 + /* supported rates */
+			    7 + /* ext capab */
+			    extra_ies_len +
+			    sizeof(struct ieee80211_tdls_lnkie));
+	if (!skb)
+		return -ENOMEM;
+
+	info = IEEE80211_SKB_CB(skb);
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+
+	switch (action_code) {
+	case WLAN_TDLS_SETUP_REQUEST:
+	case WLAN_TDLS_SETUP_RESPONSE:
+	case WLAN_TDLS_SETUP_CONFIRM:
+	case WLAN_TDLS_TEARDOWN:
+	case WLAN_TDLS_DISCOVERY_REQUEST:
+		ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
+						     action_code, dialog_token,
+						     status_code, skb);
+		send_direct = false;
+		break;
+	case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
+		ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
+						 dialog_token, status_code,
+						 skb);
+		send_direct = true;
+		break;
+	default:
+		ret = -ENOTSUPP;
+		break;
+	}
+
+	if (ret < 0)
+		goto fail;
+
+	if (extra_ies_len)
+		memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
+
+	/* the TDLS link IE is always added last */
+	switch (action_code) {
+	case WLAN_TDLS_SETUP_REQUEST:
+	case WLAN_TDLS_SETUP_CONFIRM:
+	case WLAN_TDLS_TEARDOWN:
+	case WLAN_TDLS_DISCOVERY_REQUEST:
+		/* we are the initiator */
+		ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
+					   sdata->u.mgd.bssid);
+		break;
+	case WLAN_TDLS_SETUP_RESPONSE:
+	case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
+		/* we are the responder */
+		ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
+					   sdata->u.mgd.bssid);
+		break;
+	default:
+		ret = -ENOTSUPP;
+		goto fail;
+	}
+
+	if (send_direct) {
+		ieee80211_tx_skb(sdata, skb);
+		return 0;
+	}
+
+	/*
+	 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
+	 * we should default to AC_VI.
+	 */
+	switch (action_code) {
+	case WLAN_TDLS_SETUP_REQUEST:
+	case WLAN_TDLS_SETUP_RESPONSE:
+		skb_set_queue_mapping(skb, IEEE80211_AC_BK);
+		skb->priority = 2;
+		break;
+	default:
+		skb_set_queue_mapping(skb, IEEE80211_AC_VI);
+		skb->priority = 5;
+		break;
+	}
+
+	/* disable bottom halves when entering the Tx path */
+	local_bh_disable();
+	ret = ieee80211_subif_start_xmit(skb, dev);
+	local_bh_enable();
+
+	return ret;
+
+fail:
+	dev_kfree_skb(skb);
+	return ret;
+}
+
+static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
+			       u8 *peer, enum nl80211_tdls_operation oper)
+{
+	struct sta_info *sta;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
+		return -ENOTSUPP;
+
+	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+		return -EINVAL;
+
+#ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG
+	printk(KERN_DEBUG "TDLS oper %d peer %pM\n", oper, peer);
+#endif
+
+	switch (oper) {
+	case NL80211_TDLS_ENABLE_LINK:
+		rcu_read_lock();
+		sta = sta_info_get(sdata, peer);
+		if (!sta) {
+			rcu_read_unlock();
+			return -ENOLINK;
+		}
+
+		set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
+		rcu_read_unlock();
+		break;
+	case NL80211_TDLS_DISABLE_LINK:
+		return sta_info_destroy_addr(sdata, peer);
+	case NL80211_TDLS_TEARDOWN:
+	case NL80211_TDLS_SETUP:
+	case NL80211_TDLS_DISCOVERY_REQ:
+		/* We don't support in-driver setup/teardown/discovery */
+		return -ENOTSUPP;
+	default:
+		return -ENOTSUPP;
+	}
+
+	return 0;
+}
+
 struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -2186,4 +2551,6 @@ struct cfg80211_ops mac80211_config_ops = {
 	.set_ringparam = ieee80211_set_ringparam,
 	.get_ringparam = ieee80211_get_ringparam,
 	.set_rekey_data = ieee80211_set_rekey_data,
+	.tdls_oper = ieee80211_tdls_oper,
+	.tdls_mgmt = ieee80211_tdls_mgmt,
 };