From 863981e96738983919de841ec669e157e6bdaeb0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Sun, 11 Sep 2016 04:34:46 -0300
Subject: Linux-libre 4.7.1-gnu

---
 net/wireless/sme.c | 54 +++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 41 insertions(+), 13 deletions(-)

(limited to 'net/wireless/sme.c')

diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 544558171..584fdc347 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -81,7 +81,7 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
 		return -ENOMEM;
 
 	if (wdev->conn->params.channel) {
-		enum ieee80211_band band = wdev->conn->params.channel->band;
+		enum nl80211_band band = wdev->conn->params.channel->band;
 		struct ieee80211_supported_band *sband =
 			wdev->wiphy->bands[band];
 
@@ -93,11 +93,11 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
 		request->rates[band] = (1 << sband->n_bitrates) - 1;
 	} else {
 		int i = 0, j;
-		enum ieee80211_band band;
+		enum nl80211_band band;
 		struct ieee80211_supported_band *bands;
 		struct ieee80211_channel *channel;
 
-		for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		for (band = 0; band < NUM_NL80211_BANDS; band++) {
 			bands = wdev->wiphy->bands[band];
 			if (!bands)
 				continue;
@@ -119,6 +119,8 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
 		wdev->conn->params.ssid_len);
 	request->ssids[0].ssid_len = wdev->conn->params.ssid_len;
 
+	eth_broadcast_addr(request->bssid);
+
 	request->wdev = wdev;
 	request->wiphy = &rdev->wiphy;
 	request->scan_start = jiffies;
@@ -221,7 +223,7 @@ void cfg80211_conn_work(struct work_struct *work)
 
 	rtnl_lock();
 
-	list_for_each_entry(wdev, &rdev->wdev_list, list) {
+	list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
 		if (!wdev->netdev)
 			continue;
 
@@ -490,8 +492,18 @@ static int cfg80211_sme_connect(struct wireless_dev *wdev,
 	if (!rdev->ops->auth || !rdev->ops->assoc)
 		return -EOPNOTSUPP;
 
-	if (wdev->current_bss)
-		return -EALREADY;
+	if (wdev->current_bss) {
+		if (!prev_bssid)
+			return -EALREADY;
+		if (prev_bssid &&
+		    !ether_addr_equal(prev_bssid, wdev->current_bss->pub.bssid))
+			return -ENOTCONN;
+		cfg80211_unhold_bss(wdev->current_bss);
+		cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
+		wdev->current_bss = NULL;
+
+		cfg80211_sme_free(wdev);
+	}
 
 	if (WARN_ON(wdev->conn))
 		return -EINPROGRESS;
@@ -605,7 +617,7 @@ static bool cfg80211_is_all_idle(void)
 	 * count as new regulatory hints.
 	 */
 	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
-		list_for_each_entry(wdev, &rdev->wdev_list, list) {
+		list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
 			wdev_lock(wdev);
 			if (wdev->conn || wdev->current_bss)
 				is_all_idle = false;
@@ -741,19 +753,32 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 	kfree(country_ie);
 }
 
-void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
-			     const u8 *req_ie, size_t req_ie_len,
-			     const u8 *resp_ie, size_t resp_ie_len,
-			     u16 status, gfp_t gfp)
+/* Consumes bss object one way or another */
+void cfg80211_connect_bss(struct net_device *dev, const u8 *bssid,
+			  struct cfg80211_bss *bss, const u8 *req_ie,
+			  size_t req_ie_len, const u8 *resp_ie,
+			  size_t resp_ie_len, u16 status, gfp_t gfp)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct cfg80211_event *ev;
 	unsigned long flags;
 
+	if (bss) {
+		/* Make sure the bss entry provided by the driver is valid. */
+		struct cfg80211_internal_bss *ibss = bss_from_pub(bss);
+
+		if (WARN_ON(list_empty(&ibss->list))) {
+			cfg80211_put_bss(wdev->wiphy, bss);
+			return;
+		}
+	}
+
 	ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp);
-	if (!ev)
+	if (!ev) {
+		cfg80211_put_bss(wdev->wiphy, bss);
 		return;
+	}
 
 	ev->type = EVENT_CONNECT_RESULT;
 	if (bssid)
@@ -768,6 +793,9 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 		ev->cr.resp_ie_len = resp_ie_len;
 		memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len);
 	}
+	if (bss)
+		cfg80211_hold_bss(bss_from_pub(bss));
+	ev->cr.bss = bss;
 	ev->cr.status = status;
 
 	spin_lock_irqsave(&wdev->event_lock, flags);
@@ -775,7 +803,7 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 	spin_unlock_irqrestore(&wdev->event_lock, flags);
 	queue_work(cfg80211_wq, &rdev->event_work);
 }
-EXPORT_SYMBOL(cfg80211_connect_result);
+EXPORT_SYMBOL(cfg80211_connect_bss);
 
 /* Consumes bss object one way or another */
 void __cfg80211_roamed(struct wireless_dev *wdev,
-- 
cgit v1.2.3-54-g00ecf