1 files changed, 234 insertions, 9 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 543b1d4fc33d..fd6541f3ade3 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3,6 +3,7 @@
  *
  * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2015  Intel Mobile Communications GmbH
+ * Copyright (C) 2015-2016 Intel Deutschland GmbH
  *
  * This file is GPLv2 as found in COPYING.
  */
@@ -39,7 +40,7 @@ static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
 
 	if (type == NL80211_IFTYPE_MONITOR && flags) {
 		sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
-		sdata->u.mntr_flags = *flags;
+		sdata->u.mntr.flags = *flags;
 	}
 
 	return wdev;
@@ -73,8 +74,29 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 		sdata->u.mgd.use_4addr = params->use_4addr;
 	}
 
-	if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
+	if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 		struct ieee80211_local *local = sdata->local;
+		struct ieee80211_sub_if_data *monitor_sdata;
+		u32 mu_mntr_cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
+
+		monitor_sdata = rtnl_dereference(local->monitor_sdata);
+		if (monitor_sdata &&
+		    wiphy_ext_feature_isset(wiphy, mu_mntr_cap_flag)) {
+			memcpy(monitor_sdata->vif.bss_conf.mu_group.membership,
+			       params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
+			memcpy(monitor_sdata->vif.bss_conf.mu_group.position,
+			       params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
+			       WLAN_USER_POSITION_LEN);
+			monitor_sdata->vif.mu_mimo_owner = true;
+			ieee80211_bss_info_change_notify(monitor_sdata,
+							 BSS_CHANGED_MU_GROUPS);
+
+			ether_addr_copy(monitor_sdata->u.mntr.mu_follow_addr,
+					params->macaddr);
+		}
+
+		if (!flags)
+			return 0;
 
 		if (ieee80211_sdata_running(sdata)) {
 			u32 mask = MONITOR_FLAG_COOK_FRAMES |
@@ -89,11 +111,11 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 			 *	cooked_mntrs, monitor and all fif_* counters
 			 *	reconfigure hardware
 			 */
-			if ((*flags & mask) != (sdata->u.mntr_flags & mask))
+			if ((*flags & mask) != (sdata->u.mntr.flags & mask))
 				return -EBUSY;
 
 			ieee80211_adjust_monitor_flags(sdata, -1);
-			sdata->u.mntr_flags = *flags;
+			sdata->u.mntr.flags = *flags;
 			ieee80211_adjust_monitor_flags(sdata, 1);
 
 			ieee80211_configure_filter(local);
@@ -103,7 +125,7 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 			 * and ieee80211_do_open take care of "everything"
 			 * mentioned in the comment above.
 			 */
-			sdata->u.mntr_flags = *flags;
+			sdata->u.mntr.flags = *flags;
 		}
 	}
 
@@ -131,6 +153,149 @@ static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 	ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 }
 
+static int ieee80211_start_nan(struct wiphy *wiphy,
+			       struct wireless_dev *wdev,
+			       struct cfg80211_nan_conf *conf)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+	int ret;
+
+	mutex_lock(&sdata->local->chanctx_mtx);
+	ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
+	mutex_unlock(&sdata->local->chanctx_mtx);
+	if (ret < 0)
+		return ret;
+
+	ret = ieee80211_do_open(wdev, true);
+	if (ret)
+		return ret;
+
+	ret = drv_start_nan(sdata->local, sdata, conf);
+	if (ret)
+		ieee80211_sdata_stop(sdata);
+
+	sdata->u.nan.conf = *conf;
+
+	return ret;
+}
+
+static void ieee80211_stop_nan(struct wiphy *wiphy,
+			       struct wireless_dev *wdev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+
+	drv_stop_nan(sdata->local, sdata);
+	ieee80211_sdata_stop(sdata);
+}
+
+static int ieee80211_nan_change_conf(struct wiphy *wiphy,
+				     struct wireless_dev *wdev,
+				     struct cfg80211_nan_conf *conf,
+				     u32 changes)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+	struct cfg80211_nan_conf new_conf;
+	int ret = 0;
+
+	if (sdata->vif.type != NL80211_IFTYPE_NAN)
+		return -EOPNOTSUPP;
+
+	if (!ieee80211_sdata_running(sdata))
+		return -ENETDOWN;
+
+	new_conf = sdata->u.nan.conf;
+
+	if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
+		new_conf.master_pref = conf->master_pref;
+
+	if (changes & CFG80211_NAN_CONF_CHANGED_DUAL)
+		new_conf.dual = conf->dual;
+
+	ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
+	if (!ret)
+		sdata->u.nan.conf = new_conf;
+
+	return ret;
+}
+
+static int ieee80211_add_nan_func(struct wiphy *wiphy,
+				  struct wireless_dev *wdev,
+				  struct cfg80211_nan_func *nan_func)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+	int ret;
+
+	if (sdata->vif.type != NL80211_IFTYPE_NAN)
+		return -EOPNOTSUPP;
+
+	if (!ieee80211_sdata_running(sdata))
+		return -ENETDOWN;
+
+	spin_lock_bh(&sdata->u.nan.func_lock);
+
+	ret = idr_alloc(&sdata->u.nan.function_inst_ids,
+			nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
+			GFP_ATOMIC);
+	spin_unlock_bh(&sdata->u.nan.func_lock);
+
+	if (ret < 0)
+		return ret;
+
+	nan_func->instance_id = ret;
+
+	WARN_ON(nan_func->instance_id == 0);
+
+	ret = drv_add_nan_func(sdata->local, sdata, nan_func);
+	if (ret) {
+		spin_lock_bh(&sdata->u.nan.func_lock);
+		idr_remove(&sdata->u.nan.function_inst_ids,
+			   nan_func->instance_id);
+		spin_unlock_bh(&sdata->u.nan.func_lock);
+	}
+
+	return ret;
+}
+
+static struct cfg80211_nan_func *
+ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
+				  u64 cookie)
+{
+	struct cfg80211_nan_func *func;
+	int id;
+
+	lockdep_assert_held(&sdata->u.nan.func_lock);
+
+	idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
+		if (func->cookie == cookie)
+			return func;
+	}
+
+	return NULL;
+}
+
+static void ieee80211_del_nan_func(struct wiphy *wiphy,
+				  struct wireless_dev *wdev, u64 cookie)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+	struct cfg80211_nan_func *func;
+	u8 instance_id = 0;
+
+	if (sdata->vif.type != NL80211_IFTYPE_NAN ||
+	    !ieee80211_sdata_running(sdata))
+		return;
+
+	spin_lock_bh(&sdata->u.nan.func_lock);
+
+	func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
+	if (func)
+		instance_id = func->instance_id;
+
+	spin_unlock_bh(&sdata->u.nan.func_lock);
+
+	if (instance_id)
+		drv_del_nan_func(sdata->local, sdata, instance_id);
+}
+
 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 				  struct net_device *dev,
 				  u16 noack_map)
@@ -236,6 +401,7 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 	case NL80211_IFTYPE_WDS:
 	case NL80211_IFTYPE_MONITOR:
 	case NL80211_IFTYPE_P2P_DEVICE:
+	case NL80211_IFTYPE_NAN:
 	case NL80211_IFTYPE_UNSPECIFIED:
 	case NUM_NL80211_IFTYPES:
 	case NL80211_IFTYPE_P2P_CLIENT:
@@ -2015,6 +2181,7 @@ static int ieee80211_scan(struct wiphy *wiphy,
 		     !(req->flags & NL80211_SCAN_FLAG_AP)))
 			return -EOPNOTSUPP;
 		break;
+	case NL80211_IFTYPE_NAN:
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -2940,10 +3107,6 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 	}
 
 	chanctx = container_of(conf, struct ieee80211_chanctx, conf);
-	if (!chanctx) {
-		err = -EBUSY;
-		goto out;
-	}
 
 	ch_switch.timestamp = 0;
 	ch_switch.device_timestamp = 0;
@@ -3360,6 +3523,63 @@ static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
 	return -ENOENT;
 }
 
+void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
+				   u8 inst_id,
+				   enum nl80211_nan_func_term_reason reason,
+				   gfp_t gfp)
+{
+	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+	struct cfg80211_nan_func *func;
+	u64 cookie;
+
+	if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
+		return;
+
+	spin_lock_bh(&sdata->u.nan.func_lock);
+
+	func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
+	if (WARN_ON(!func)) {
+		spin_unlock_bh(&sdata->u.nan.func_lock);
+		return;
+	}
+
+	cookie = func->cookie;
+	idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
+
+	spin_unlock_bh(&sdata->u.nan.func_lock);
+
+	cfg80211_free_nan_func(func);
+
+	cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
+				     reason, cookie, gfp);
+}
+EXPORT_SYMBOL(ieee80211_nan_func_terminated);
+
+void ieee80211_nan_func_match(struct ieee80211_vif *vif,
+			      struct cfg80211_nan_match_params *match,
+			      gfp_t gfp)
+{
+	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+	struct cfg80211_nan_func *func;
+
+	if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
+		return;
+
+	spin_lock_bh(&sdata->u.nan.func_lock);
+
+	func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
+	if (WARN_ON(!func)) {
+		spin_unlock_bh(&sdata->u.nan.func_lock);
+		return;
+	}
+	match->cookie = func->cookie;
+
+	spin_unlock_bh(&sdata->u.nan.func_lock);
+
+	cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
+}
+EXPORT_SYMBOL(ieee80211_nan_func_match);
+
 const struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -3445,4 +3665,9 @@ const struct cfg80211_ops mac80211_config_ops = {
 	.set_ap_chanwidth = ieee80211_set_ap_chanwidth,
 	.add_tx_ts = ieee80211_add_tx_ts,
 	.del_tx_ts = ieee80211_del_tx_ts,
+	.start_nan = ieee80211_start_nan,
+	.stop_nan = ieee80211_stop_nan,
+	.nan_change_conf = ieee80211_nan_change_conf,
+	.add_nan_func = ieee80211_add_nan_func,
+	.del_nan_func = ieee80211_del_nan_func,
 };