[MAC80211]: make userspace-mlme a per-interface setting

Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/mac80211/ieee80211.c

@@ -254,7 +254,7 @@ static int ieee80211_open(struct net_device *dev)
 		ieee80211_enable_keys(sdata);
 
 		if (sdata->type == IEEE80211_IF_TYPE_STA &&
-		    !local->user_space_mlme)
+		    !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
 			netif_carrier_off(dev);
 		else
 			netif_carrier_on(dev);

net/mac80211/ieee80211_i.h

@@ -287,6 +287,7 @@ struct ieee80211_if_sta {
  * generator reports that there are no present stations that cannot support short
  * preambles */
 #define IEEE80211_SDATA_SHORT_PREAMBLE	BIT(3)
+#define IEEE80211_SDATA_USERSPACE_MLME	BIT(4)
 struct ieee80211_sub_if_data {
 	struct list_head list;
 	enum ieee80211_if_types type;
@@ -553,8 +554,6 @@ struct ieee80211_local {
 	unsigned int hw_modes; /* bitfield of supported hardware modes;
 				* (1 << MODE_*) */
 
-	int user_space_mlme;
-
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct local_debugfsdentries {
 		struct dentry *channel;

net/mac80211/ieee80211_ioctl.c

@@ -105,12 +105,12 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 				    struct iw_point *data, char *extra)
 {
 	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 
-	if (local->user_space_mlme)
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
 		return -EOPNOTSUPP;
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (sdata->type == IEEE80211_IF_TYPE_STA ||
 	    sdata->type == IEEE80211_IF_TYPE_IBSS) {
 		int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
@@ -374,7 +374,6 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 				    struct iw_request_info *info,
 				    struct iw_point *data, char *ssid)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee80211_sub_if_data *sdata;
 	size_t len = data->length;
 
@@ -386,7 +385,7 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 	if (sdata->type == IEEE80211_IF_TYPE_STA ||
 	    sdata->type == IEEE80211_IF_TYPE_IBSS) {
 		int ret;
-		if (local->user_space_mlme) {
+		if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
 			if (len > IEEE80211_MAX_SSID_LEN)
 				return -EINVAL;
 			memcpy(sdata->u.sta.ssid, ssid, len);
@@ -451,14 +450,13 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
 				 struct iw_request_info *info,
 				 struct sockaddr *ap_addr, char *extra)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee80211_sub_if_data *sdata;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (sdata->type == IEEE80211_IF_TYPE_STA ||
 	    sdata->type == IEEE80211_IF_TYPE_IBSS) {
 		int ret;
-		if (local->user_space_mlme) {
+		if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
 			memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
 			       ETH_ALEN);
 			return 0;

net/mac80211/rx.c

@@ -1199,7 +1199,7 @@ ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
 	sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 	if ((sdata->type == IEEE80211_IF_TYPE_STA ||
 	     sdata->type == IEEE80211_IF_TYPE_IBSS) &&
-	    !rx->local->user_space_mlme)
+	    !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
 		ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
 	else
 		return TXRX_DROP;