1 files changed, 250 insertions, 43 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index d06c65fa5526..850bb96bd680 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -102,6 +102,16 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 	return 0;
 }
 
+static int ieee80211_set_noack_map(struct wiphy *wiphy,
+				  struct net_device *dev,
+				  u16 noack_map)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	sdata->noack_map = noack_map;
+	return 0;
+}
+
 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 			     u8 key_idx, bool pairwise, const u8 *mac_addr,
 			     struct key_params *params)
@@ -345,7 +355,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 			STATION_INFO_RX_DROP_MISC |
 			STATION_INFO_BSS_PARAM |
 			STATION_INFO_CONNECTED_TIME |
-			STATION_INFO_STA_FLAGS;
+			STATION_INFO_STA_FLAGS |
+			STATION_INFO_BEACON_LOSS_COUNT;
 
 	do_posix_clock_monotonic_gettime(&uptime);
 	sinfo->connected_time = uptime.tv_sec - sta->last_connected;
@@ -358,6 +369,7 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 	sinfo->tx_retries = sta->tx_retry_count;
 	sinfo->tx_failed = sta->tx_retry_failed;
 	sinfo->rx_dropped_misc = sta->rx_dropped;
+	sinfo->beacon_loss_count = sta->beacon_loss_count;
 
 	if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 	    (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
@@ -411,7 +423,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 				BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
 				BIT(NL80211_STA_FLAG_WME) |
 				BIT(NL80211_STA_FLAG_MFP) |
-				BIT(NL80211_STA_FLAG_AUTHENTICATED);
+				BIT(NL80211_STA_FLAG_AUTHENTICATED) |
+				BIT(NL80211_STA_FLAG_TDLS_PEER);
 	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))
@@ -422,6 +435,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 		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);
+	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
+		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
 }
 
 
@@ -488,6 +503,31 @@ static void ieee80211_config_ap_ssid(struct ieee80211_sub_if_data *sdata,
 		(params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
 }
 
+static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
+				    u8 *resp, size_t resp_len)
+{
+	struct sk_buff *new, *old;
+
+	if (!resp || !resp_len)
+		return -EINVAL;
+
+	old = rtnl_dereference(sdata->u.ap.probe_resp);
+
+	new = dev_alloc_skb(resp_len);
+	if (!new)
+		return -ENOMEM;
+
+	memcpy(skb_put(new, resp_len), resp, resp_len);
+
+	rcu_assign_pointer(sdata->u.ap.probe_resp, new);
+	synchronize_rcu();
+
+	if (old)
+		dev_kfree_skb(old);
+
+	return 0;
+}
+
 /*
  * This handles both adding a beacon and setting new beacon info
  */
@@ -498,6 +538,7 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 	int new_head_len, new_tail_len;
 	int size;
 	int err = -EINVAL;
+	u32 changed = 0;
 
 	old = rtnl_dereference(sdata->u.ap.beacon);
 
@@ -581,11 +622,17 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 
 	kfree(old);
 
+	err = ieee80211_set_probe_resp(sdata, params->probe_resp,
+				       params->probe_resp_len);
+	if (!err)
+		changed |= BSS_CHANGED_AP_PROBE_RESP;
+
 	ieee80211_config_ap_ssid(sdata, params);
+	changed |= BSS_CHANGED_BEACON_ENABLED |
+		   BSS_CHANGED_BEACON |
+		   BSS_CHANGED_SSID;
 
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
-						BSS_CHANGED_BEACON |
-						BSS_CHANGED_SSID);
+	ieee80211_bss_info_change_notify(sdata, changed);
 	return 0;
 }
 
@@ -594,6 +641,8 @@ static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 {
 	struct ieee80211_sub_if_data *sdata;
 	struct beacon_data *old;
+	struct ieee80211_sub_if_data *vlan;
+	int ret;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
@@ -601,7 +650,24 @@ static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 	if (old)
 		return -EALREADY;
 
-	return ieee80211_config_beacon(sdata, params);
+	ret = ieee80211_config_beacon(sdata, params);
+	if (ret)
+		return ret;
+
+	/*
+	 * Apply control port protocol, this allows us to
+	 * not encrypt dynamic WEP control frames.
+	 */
+	sdata->control_port_protocol = params->crypto.control_port_ethertype;
+	sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
+	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
+		vlan->control_port_protocol =
+			params->crypto.control_port_ethertype;
+		vlan->control_port_no_encrypt =
+			params->crypto.control_port_no_encrypt;
+	}
+
+	return 0;
 }
 
 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
@@ -682,10 +748,11 @@ static void ieee80211_send_layer2_update(struct sta_info *sta)
 	netif_rx_ni(skb);
 }
 
-static void sta_apply_parameters(struct ieee80211_local *local,
-				 struct sta_info *sta,
-				 struct station_parameters *params)
+static int sta_apply_parameters(struct ieee80211_local *local,
+				struct sta_info *sta,
+				struct station_parameters *params)
 {
+	int ret = 0;
 	u32 rates;
 	int i, j;
 	struct ieee80211_supported_band *sband;
@@ -697,13 +764,59 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 	mask = params->sta_flags_mask;
 	set = params->sta_flags_set;
 
+	/*
+	 * In mesh mode, we can clear AUTHENTICATED flag but must
+	 * also make ASSOCIATED follow appropriately for the driver
+	 * API. See also below, after AUTHORIZED changes.
+	 */
+	if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
+		/* cfg80211 should not allow this in non-mesh modes */
+		if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
+			return -EINVAL;
+
+		if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
+		    !test_sta_flag(sta, WLAN_STA_AUTH)) {
+			ret = sta_info_move_state_checked(sta,
+					IEEE80211_STA_AUTH);
+			if (ret)
+				return ret;
+			ret = sta_info_move_state_checked(sta,
+					IEEE80211_STA_ASSOC);
+			if (ret)
+				return ret;
+		}
+	}
+
 	if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 		if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
-			set_sta_flag(sta, WLAN_STA_AUTHORIZED);
+			ret = sta_info_move_state_checked(sta,
+					IEEE80211_STA_AUTHORIZED);
 		else
-			clear_sta_flag(sta, WLAN_STA_AUTHORIZED);
+			ret = sta_info_move_state_checked(sta,
+					IEEE80211_STA_ASSOC);
+		if (ret)
+			return ret;
+	}
+
+	if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
+		/* cfg80211 should not allow this in non-mesh modes */
+		if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
+			return -EINVAL;
+
+		if (!(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
+		    test_sta_flag(sta, WLAN_STA_AUTH)) {
+			ret = sta_info_move_state_checked(sta,
+					IEEE80211_STA_AUTH);
+			if (ret)
+				return ret;
+			ret = sta_info_move_state_checked(sta,
+					IEEE80211_STA_NONE);
+			if (ret)
+				return ret;
+		}
 	}
 
+
 	if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 		if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 			set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
@@ -728,13 +841,6 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 			clear_sta_flag(sta, WLAN_STA_MFP);
 	}
 
-	if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
-		if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
-			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);
@@ -778,7 +884,7 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 	}
 
 	if (params->ht_capa)
-		ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
+		ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
 						  params->ht_capa,
 						  &sta->sta.ht_cap);
 
@@ -806,6 +912,8 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 			}
 #endif
 	}
+
+	return 0;
 }
 
 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
@@ -832,22 +940,25 @@ 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;
 
-	set_sta_flag(sta, WLAN_STA_AUTH);
-	set_sta_flag(sta, WLAN_STA_ASSOC);
+	sta_info_move_state(sta, IEEE80211_STA_AUTH);
+	sta_info_move_state(sta, IEEE80211_STA_ASSOC);
 
-	sta_apply_parameters(local, sta, params);
+	err = sta_apply_parameters(local, sta, params);
+	if (err) {
+		sta_info_free(local, sta);
+		return err;
+	}
 
-	rate_control_rate_init(sta);
+	/*
+	 * for TDLS, rate control should be initialized only when supported
+	 * rates are known.
+	 */
+	if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
+		rate_control_rate_init(sta);
 
 	layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 		sdata->vif.type == NL80211_IFTYPE_AP;
@@ -891,19 +1002,19 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *vlansdata;
 
-	rcu_read_lock();
+	mutex_lock(&local->sta_mtx);
 
 	sta = sta_info_get_bss(sdata, mac);
 	if (!sta) {
-		rcu_read_unlock();
+		mutex_unlock(&local->sta_mtx);
 		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();
+	/* in station mode, supported rates are only valid with TDLS */
+	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+	    params->supported_rates &&
+	    !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
+		mutex_unlock(&local->sta_mtx);
 		return -EINVAL;
 	}
 
@@ -912,13 +1023,13 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 
 		if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 		    vlansdata->vif.type != NL80211_IFTYPE_AP) {
-			rcu_read_unlock();
+			mutex_unlock(&local->sta_mtx);
 			return -EINVAL;
 		}
 
 		if (params->vlan->ieee80211_ptr->use_4addr) {
 			if (vlansdata->u.vlan.sta) {
-				rcu_read_unlock();
+				mutex_unlock(&local->sta_mtx);
 				return -EBUSY;
 			}
 
@@ -931,7 +1042,10 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 
 	sta_apply_parameters(local, sta, params);
 
-	rcu_read_unlock();
+	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates)
+		rate_control_rate_init(sta);
+
+	mutex_unlock(&local->sta_mtx);
 
 	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
 	    params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
@@ -1123,6 +1237,8 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
 {
 	u8 *new_ie;
 	const u8 *old_ie;
+	struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
+					struct ieee80211_sub_if_data, u.mesh);
 
 	/* allocate information elements */
 	new_ie = NULL;
@@ -1149,6 +1265,10 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
 	if (setup->is_secure)
 		ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
 
+	/* mcast rate setting in Mesh Node */
+	memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
+						sizeof(setup->mcast_rate));
+
 	return 0;
 }
 
@@ -1194,6 +1314,9 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
 		conf->dot11MeshHWMPpreqMinInterval =
 			nconf->dot11MeshHWMPpreqMinInterval;
+	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
+		conf->dot11MeshHWMPperrMinInterval =
+			nconf->dot11MeshHWMPperrMinInterval;
 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
 			   mask))
 		conf->dot11MeshHWMPnetDiameterTraversalTime =
@@ -1394,7 +1517,7 @@ static int ieee80211_set_channel(struct wiphy *wiphy,
 	    (old_oper_type != local->_oper_channel_type))
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
 
-	if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
+	if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR &&
 	    old_vif_oper_type != sdata->vif.bss_conf.channel_type)
 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
 
@@ -1917,7 +2040,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
 			     enum nl80211_channel_type channel_type,
 			     bool channel_type_valid, unsigned int wait,
 			     const u8 *buf, size_t len, bool no_cck,
-			     u64 *cookie)
+			     bool dont_wait_for_ack, u64 *cookie)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
@@ -1925,10 +2048,15 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
 	struct sta_info *sta;
 	struct ieee80211_work *wk;
 	const struct ieee80211_mgmt *mgmt = (void *)buf;
-	u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
-		    IEEE80211_TX_CTL_REQ_TX_STATUS;
+	u32 flags;
 	bool is_offchan = false;
 
+	if (dont_wait_for_ack)
+		flags = IEEE80211_TX_CTL_NO_ACK;
+	else
+		flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
+			IEEE80211_TX_CTL_REQ_TX_STATUS;
+
 	/* Check that we are on the requested channel for transmission */
 	if (chan != local->tmp_channel &&
 	    chan != local->oper_channel)
@@ -2488,6 +2616,82 @@ static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
 	return 0;
 }
 
+static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
+				  const u8 *peer, u64 *cookie)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_qos_hdr *nullfunc;
+	struct sk_buff *skb;
+	int size = sizeof(*nullfunc);
+	__le16 fc;
+	bool qos;
+	struct ieee80211_tx_info *info;
+	struct sta_info *sta;
+
+	rcu_read_lock();
+	sta = sta_info_get(sdata, peer);
+	if (sta) {
+		qos = test_sta_flag(sta, WLAN_STA_WME);
+		rcu_read_unlock();
+	} else {
+		rcu_read_unlock();
+		return -ENOLINK;
+	}
+
+	if (qos) {
+		fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
+				 IEEE80211_STYPE_QOS_NULLFUNC |
+				 IEEE80211_FCTL_FROMDS);
+	} else {
+		size -= 2;
+		fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
+				 IEEE80211_STYPE_NULLFUNC |
+				 IEEE80211_FCTL_FROMDS);
+	}
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
+	if (!skb)
+		return -ENOMEM;
+
+	skb->dev = dev;
+
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+
+	nullfunc = (void *) skb_put(skb, size);
+	nullfunc->frame_control = fc;
+	nullfunc->duration_id = 0;
+	memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
+	memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
+	memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
+	nullfunc->seq_ctrl = 0;
+
+	info = IEEE80211_SKB_CB(skb);
+
+	info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
+		       IEEE80211_TX_INTFL_NL80211_FRAME_TX;
+
+	skb_set_queue_mapping(skb, IEEE80211_AC_VO);
+	skb->priority = 7;
+	if (qos)
+		nullfunc->qos_ctrl = cpu_to_le16(7);
+
+	local_bh_disable();
+	ieee80211_xmit(sdata, skb);
+	local_bh_enable();
+
+	*cookie = (unsigned long) skb;
+	return 0;
+}
+
+static struct ieee80211_channel *
+ieee80211_wiphy_get_channel(struct wiphy *wiphy)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+
+	return local->oper_channel;
+}
+
 struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -2553,4 +2757,7 @@ struct cfg80211_ops mac80211_config_ops = {
 	.set_rekey_data = ieee80211_set_rekey_data,
 	.tdls_oper = ieee80211_tdls_oper,
 	.tdls_mgmt = ieee80211_tdls_mgmt,
+	.probe_client = ieee80211_probe_client,
+	.get_channel = ieee80211_wiphy_get_channel,
+	.set_noack_map = ieee80211_set_noack_map,
 };