1 files changed, 602 insertions, 25 deletions

diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 4218436..79d2eec 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -8,75 +8,652 @@
 #include <linux/module.h>
 #include <linux/netdevice.h>
 #include <linux/nl80211.h>
+#include <linux/wireless.h>
 #include <net/cfg80211.h>
+#include <net/iw_handler.h>
 #include "core.h"
 #include "nl80211.h"
 
 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
 {
-	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-	nl80211_send_rx_auth(rdev, dev, buf, len);
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
+	u8 *bssid = mgmt->bssid;
+	int i;
+	u16 status = le16_to_cpu(mgmt->u.auth.status_code);
+	bool done = false;
+
+	wdev_lock(wdev);
+
+	for (i = 0; i < MAX_AUTH_BSSES; i++) {
+		if (wdev->authtry_bsses[i] &&
+		    memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid,
+							ETH_ALEN) == 0) {
+			if (status == WLAN_STATUS_SUCCESS) {
+				wdev->auth_bsses[i] = wdev->authtry_bsses[i];
+			} else {
+				cfg80211_unhold_bss(wdev->authtry_bsses[i]);
+				cfg80211_put_bss(&wdev->authtry_bsses[i]->pub);
+			}
+			wdev->authtry_bsses[i] = NULL;
+			done = true;
+			break;
+		}
+	}
+
+	WARN_ON(!done);
+
+	nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
+	cfg80211_sme_rx_auth(dev, buf, len);
+
+	wdev_unlock(wdev);
 }
 EXPORT_SYMBOL(cfg80211_send_rx_auth);
 
 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
 {
-	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	u16 status_code;
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-	nl80211_send_rx_assoc(rdev, dev, buf, len);
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
+	u8 *ie = mgmt->u.assoc_resp.variable;
+	int i, ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
+	struct cfg80211_internal_bss *bss = NULL;
+
+	wdev_lock(wdev);
+
+	status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
+
+	/*
+	 * This is a bit of a hack, we don't notify userspace of
+	 * a (re-)association reply if we tried to send a reassoc
+	 * and got a reject -- we only try again with an assoc
+	 * frame instead of reassoc.
+	 */
+	if (status_code != WLAN_STATUS_SUCCESS && wdev->conn &&
+	    cfg80211_sme_failed_reassoc(wdev))
+		goto out;
+
+	nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL);
+
+	if (status_code == WLAN_STATUS_SUCCESS) {
+		for (i = 0; i < MAX_AUTH_BSSES; i++) {
+			if (!wdev->auth_bsses[i])
+				continue;
+			if (memcmp(wdev->auth_bsses[i]->pub.bssid, mgmt->bssid,
+				   ETH_ALEN) == 0) {
+				bss = wdev->auth_bsses[i];
+				wdev->auth_bsses[i] = NULL;
+				/* additional reference to drop hold */
+				cfg80211_ref_bss(bss);
+				break;
+			}
+		}
+
+		WARN_ON(!bss);
+	}
+
+	if (!wdev->conn && wdev->sme_state == CFG80211_SME_IDLE) {
+		/*
+		 * This is for the userspace SME, the CONNECTING
+		 * state will be changed to CONNECTED by
+		 * __cfg80211_connect_result() below.
+		 */
+		wdev->sme_state = CFG80211_SME_CONNECTING;
+	}
+
+	/* this consumes one bss reference (unless bss is NULL) */
+	__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
+				  status_code,
+				  status_code == WLAN_STATUS_SUCCESS,
+				  bss ? &bss->pub : NULL);
+	/* drop hold now, and also reference acquired above */
+	if (bss) {
+		cfg80211_unhold_bss(bss);
+		cfg80211_put_bss(&bss->pub);
+	}
+
+ out:
+	wdev_unlock(wdev);
 }
 EXPORT_SYMBOL(cfg80211_send_rx_assoc);
 
-void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len)
+static void __cfg80211_send_deauth(struct net_device *dev,
+				   const u8 *buf, size_t len)
 {
-	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-	nl80211_send_deauth(rdev, dev, buf, len);
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
+	const u8 *bssid = mgmt->bssid;
+	int i;
+	bool done = false;
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL);
+
+	if (wdev->current_bss &&
+	    memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
+		done = true;
+		cfg80211_unhold_bss(wdev->current_bss);
+		cfg80211_put_bss(&wdev->current_bss->pub);
+		wdev->current_bss = NULL;
+	} else for (i = 0; i < MAX_AUTH_BSSES; i++) {
+		if (wdev->auth_bsses[i] &&
+		    memcmp(wdev->auth_bsses[i]->pub.bssid, bssid, ETH_ALEN) == 0) {
+			cfg80211_unhold_bss(wdev->auth_bsses[i]);
+			cfg80211_put_bss(&wdev->auth_bsses[i]->pub);
+			wdev->auth_bsses[i] = NULL;
+			done = true;
+			break;
+		}
+		if (wdev->authtry_bsses[i] &&
+		    memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid, ETH_ALEN) == 0) {
+			cfg80211_unhold_bss(wdev->authtry_bsses[i]);
+			cfg80211_put_bss(&wdev->authtry_bsses[i]->pub);
+			wdev->authtry_bsses[i] = NULL;
+			done = true;
+			break;
+		}
+	}
+
+	WARN_ON(!done);
+
+	if (wdev->sme_state == CFG80211_SME_CONNECTED) {
+		u16 reason_code;
+		bool from_ap;
+
+		reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
+
+		from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
+		__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
+	} else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
+		__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
+					  WLAN_STATUS_UNSPECIFIED_FAILURE,
+					  false, NULL);
+	}
+}
+
+
+void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len,
+			  void *cookie)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	BUG_ON(cookie && wdev != cookie);
+
+	if (cookie) {
+		/* called within callback */
+		__cfg80211_send_deauth(dev, buf, len);
+	} else {
+		wdev_lock(wdev);
+		__cfg80211_send_deauth(dev, buf, len);
+		wdev_unlock(wdev);
+	}
 }
 EXPORT_SYMBOL(cfg80211_send_deauth);
 
-void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len)
+static void __cfg80211_send_disassoc(struct net_device *dev,
+				     const u8 *buf, size_t len)
 {
-	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-	nl80211_send_disassoc(rdev, dev, buf, len);
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
+	const u8 *bssid = mgmt->bssid;
+	int i;
+	u16 reason_code;
+	bool from_ap;
+	bool done = false;
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL);
+
+	if (wdev->sme_state != CFG80211_SME_CONNECTED)
+		return;
+
+	if (wdev->current_bss &&
+	    memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
+		for (i = 0; i < MAX_AUTH_BSSES; i++) {
+			if (wdev->authtry_bsses[i] || wdev->auth_bsses[i])
+				continue;
+			wdev->auth_bsses[i] = wdev->current_bss;
+			wdev->current_bss = NULL;
+			done = true;
+			cfg80211_sme_disassoc(dev, i);
+			break;
+		}
+		WARN_ON(!done);
+	} else
+		WARN_ON(1);
+
+
+	reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
+
+	from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
+	__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
 }
-EXPORT_SYMBOL(cfg80211_send_disassoc);
 
-static void cfg80211_wext_disconnected(struct net_device *dev)
+void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len,
+			    void *cookie)
 {
-#ifdef CONFIG_WIRELESS_EXT
-	union iwreq_data wrqu;
-	memset(&wrqu, 0, sizeof(wrqu));
-	wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
-#endif
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+	BUG_ON(cookie && wdev != cookie);
+
+	if (cookie) {
+		/* called within callback */
+		__cfg80211_send_disassoc(dev, buf, len);
+	} else {
+		wdev_lock(wdev);
+		__cfg80211_send_disassoc(dev, buf, len);
+		wdev_unlock(wdev);
+	}
 }
+EXPORT_SYMBOL(cfg80211_send_disassoc);
 
 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
 {
-	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-	nl80211_send_auth_timeout(rdev, dev, addr);
-	cfg80211_wext_disconnected(dev);
+	int i;
+	bool done = false;
+
+	wdev_lock(wdev);
+
+	nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
+	if (wdev->sme_state == CFG80211_SME_CONNECTING)
+		__cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
+					  WLAN_STATUS_UNSPECIFIED_FAILURE,
+					  false, NULL);
+
+	for (i = 0; addr && i < MAX_AUTH_BSSES; i++) {
+		if (wdev->authtry_bsses[i] &&
+		    memcmp(wdev->authtry_bsses[i]->pub.bssid,
+			   addr, ETH_ALEN) == 0) {
+			cfg80211_unhold_bss(wdev->authtry_bsses[i]);
+			cfg80211_put_bss(&wdev->authtry_bsses[i]->pub);
+			wdev->authtry_bsses[i] = NULL;
+			done = true;
+			break;
+		}
+	}
+
+	WARN_ON(!done);
+
+	wdev_unlock(wdev);
 }
 EXPORT_SYMBOL(cfg80211_send_auth_timeout);
 
 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
 {
-	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-	nl80211_send_assoc_timeout(rdev, dev, addr);
-	cfg80211_wext_disconnected(dev);
+	int i;
+	bool done = false;
+
+	wdev_lock(wdev);
+
+	nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL);
+	if (wdev->sme_state == CFG80211_SME_CONNECTING)
+		__cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
+					  WLAN_STATUS_UNSPECIFIED_FAILURE,
+					  false, NULL);
+
+	for (i = 0; addr && i < MAX_AUTH_BSSES; i++) {
+		if (wdev->auth_bsses[i] &&
+		    memcmp(wdev->auth_bsses[i]->pub.bssid,
+			   addr, ETH_ALEN) == 0) {
+			cfg80211_unhold_bss(wdev->auth_bsses[i]);
+			cfg80211_put_bss(&wdev->auth_bsses[i]->pub);
+			wdev->auth_bsses[i] = NULL;
+			done = true;
+			break;
+		}
+	}
+
+	WARN_ON(!done);
+
+	wdev_unlock(wdev);
 }
 EXPORT_SYMBOL(cfg80211_send_assoc_timeout);
 
 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
 				  enum nl80211_key_type key_type, int key_id,
-				  const u8 *tsc)
+				  const u8 *tsc, gfp_t gfp)
 {
 	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-	nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc);
+#ifdef CONFIG_WIRELESS_EXT
+	union iwreq_data wrqu;
+	char *buf = kmalloc(128, gfp);
+
+	if (buf) {
+		sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
+			"keyid=%d %scast addr=%pM)", key_id,
+			key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni",
+			addr);
+		memset(&wrqu, 0, sizeof(wrqu));
+		wrqu.data.length = strlen(buf);
+		wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
+		kfree(buf);
+	}
+#endif
+
+	nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp);
 }
 EXPORT_SYMBOL(cfg80211_michael_mic_failure);
+
+/* some MLME handling for userspace SME */
+int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev,
+			 struct ieee80211_channel *chan,
+			 enum nl80211_auth_type auth_type,
+			 const u8 *bssid,
+			 const u8 *ssid, int ssid_len,
+			 const u8 *ie, int ie_len,
+			 const u8 *key, int key_len, int key_idx)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_auth_request req;
+	struct cfg80211_internal_bss *bss;
+	int i, err, slot = -1, nfree = 0;
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
+		if (!key || !key_len || key_idx < 0 || key_idx > 4)
+			return -EINVAL;
+
+	if (wdev->current_bss &&
+	    memcmp(bssid, wdev->current_bss->pub.bssid, ETH_ALEN) == 0)
+		return -EALREADY;
+
+	for (i = 0; i < MAX_AUTH_BSSES; i++) {
+		if (wdev->authtry_bsses[i] &&
+		    memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid,
+						ETH_ALEN) == 0)
+			return -EALREADY;
+		if (wdev->auth_bsses[i] &&
+		    memcmp(bssid, wdev->auth_bsses[i]->pub.bssid,
+						ETH_ALEN) == 0)
+			return -EALREADY;
+	}
+
+	memset(&req, 0, sizeof(req));
+
+	req.ie = ie;
+	req.ie_len = ie_len;
+	req.auth_type = auth_type;
+	req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
+				   WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
+	req.key = key;
+	req.key_len = key_len;
+	req.key_idx = key_idx;
+	if (!req.bss)
+		return -ENOENT;
+
+	bss = bss_from_pub(req.bss);
+
+	for (i = 0; i < MAX_AUTH_BSSES; i++) {
+		if (!wdev->auth_bsses[i] && !wdev->authtry_bsses[i]) {
+			slot = i;
+			nfree++;
+		}
+	}
+
+	/* we need one free slot for disassoc and one for this auth */
+	if (nfree < 2) {
+		err = -ENOSPC;
+		goto out;
+	}
+
+	wdev->authtry_bsses[slot] = bss;
+	cfg80211_hold_bss(bss);
+
+	err = rdev->ops->auth(&rdev->wiphy, dev, &req);
+	if (err) {
+		wdev->authtry_bsses[slot] = NULL;
+		cfg80211_unhold_bss(bss);
+	}
+
+ out:
+	if (err)
+		cfg80211_put_bss(req.bss);
+	return err;
+}
+
+int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev, struct ieee80211_channel *chan,
+		       enum nl80211_auth_type auth_type, const u8 *bssid,
+		       const u8 *ssid, int ssid_len,
+		       const u8 *ie, int ie_len,
+		       const u8 *key, int key_len, int key_idx)
+{
+	int err;
+
+	wdev_lock(dev->ieee80211_ptr);
+	err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
+				   ssid, ssid_len, ie, ie_len,
+				   key, key_len, key_idx);
+	wdev_unlock(dev->ieee80211_ptr);
+
+	return err;
+}
+
+int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+			  struct net_device *dev,
+			  struct ieee80211_channel *chan,
+			  const u8 *bssid, const u8 *prev_bssid,
+			  const u8 *ssid, int ssid_len,
+			  const u8 *ie, int ie_len, bool use_mfp,
+			  struct cfg80211_crypto_settings *crypt)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_assoc_request req;
+	struct cfg80211_internal_bss *bss;
+	int i, err, slot = -1;
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	memset(&req, 0, sizeof(req));
+
+	if (wdev->current_bss)
+		return -EALREADY;
+
+	req.ie = ie;
+	req.ie_len = ie_len;
+	memcpy(&req.crypto, crypt, sizeof(req.crypto));
+	req.use_mfp = use_mfp;
+	req.prev_bssid = prev_bssid;
+	req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
+				   WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
+	if (!req.bss)
+		return -ENOENT;
+
+	bss = bss_from_pub(req.bss);
+
+	for (i = 0; i < MAX_AUTH_BSSES; i++) {
+		if (bss == wdev->auth_bsses[i]) {
+			slot = i;
+			break;
+		}
+	}
+
+	if (slot < 0) {
+		err = -ENOTCONN;
+		goto out;
+	}
+
+	err = rdev->ops->assoc(&rdev->wiphy, dev, &req);
+ out:
+	/* still a reference in wdev->auth_bsses[slot] */
+	cfg80211_put_bss(req.bss);
+	return err;
+}
+
+int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+			struct net_device *dev,
+			struct ieee80211_channel *chan,
+			const u8 *bssid, const u8 *prev_bssid,
+			const u8 *ssid, int ssid_len,
+			const u8 *ie, int ie_len, bool use_mfp,
+			struct cfg80211_crypto_settings *crypt)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	int err;
+
+	wdev_lock(wdev);
+	err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
+				    ssid, ssid_len, ie, ie_len, use_mfp, crypt);
+	wdev_unlock(wdev);
+
+	return err;
+}
+
+int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
+			   struct net_device *dev, const u8 *bssid,
+			   const u8 *ie, int ie_len, u16 reason)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_deauth_request req;
+	int i;
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	memset(&req, 0, sizeof(req));
+	req.reason_code = reason;
+	req.ie = ie;
+	req.ie_len = ie_len;
+	if (wdev->current_bss &&
+	    memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
+		req.bss = &wdev->current_bss->pub;
+	} else for (i = 0; i < MAX_AUTH_BSSES; i++) {
+		if (wdev->auth_bsses[i] &&
+		    memcmp(bssid, wdev->auth_bsses[i]->pub.bssid, ETH_ALEN) == 0) {
+			req.bss = &wdev->auth_bsses[i]->pub;
+			break;
+		}
+		if (wdev->authtry_bsses[i] &&
+		    memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid, ETH_ALEN) == 0) {
+			req.bss = &wdev->authtry_bsses[i]->pub;
+			break;
+		}
+	}
+
+	if (!req.bss)
+		return -ENOTCONN;
+
+	return rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
+}
+
+int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev, const u8 *bssid,
+			 const u8 *ie, int ie_len, u16 reason)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	int err;
+
+	wdev_lock(wdev);
+	err = __cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason);
+	wdev_unlock(wdev);
+
+	return err;
+}
+
+static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
+				    struct net_device *dev, const u8 *bssid,
+				    const u8 *ie, int ie_len, u16 reason)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_disassoc_request req;
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	if (wdev->sme_state != CFG80211_SME_CONNECTED)
+		return -ENOTCONN;
+
+	if (WARN_ON(!wdev->current_bss))
+		return -ENOTCONN;
+
+	memset(&req, 0, sizeof(req));
+	req.reason_code = reason;
+	req.ie = ie;
+	req.ie_len = ie_len;
+	if (memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0)
+		req.bss = &wdev->current_bss->pub;
+	else
+		return -ENOTCONN;
+
+	return rdev->ops->disassoc(&rdev->wiphy, dev, &req, wdev);
+}
+
+int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
+			   struct net_device *dev, const u8 *bssid,
+			   const u8 *ie, int ie_len, u16 reason)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	int err;
+
+	wdev_lock(wdev);
+	err = __cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason);
+	wdev_unlock(wdev);
+
+	return err;
+}
+
+void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
+			struct net_device *dev)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct cfg80211_deauth_request req;
+	int i;
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	if (!rdev->ops->deauth)
+		return;
+
+	memset(&req, 0, sizeof(req));
+	req.reason_code = WLAN_REASON_DEAUTH_LEAVING;
+	req.ie = NULL;
+	req.ie_len = 0;
+
+	if (wdev->current_bss) {
+		req.bss = &wdev->current_bss->pub;
+		rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
+		if (wdev->current_bss) {
+			cfg80211_unhold_bss(wdev->current_bss);
+			cfg80211_put_bss(&wdev->current_bss->pub);
+			wdev->current_bss = NULL;
+		}
+	}
+
+	for (i = 0; i < MAX_AUTH_BSSES; i++) {
+		if (wdev->auth_bsses[i]) {
+			req.bss = &wdev->auth_bsses[i]->pub;
+			rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
+			if (wdev->auth_bsses[i]) {
+				cfg80211_unhold_bss(wdev->auth_bsses[i]);
+				cfg80211_put_bss(&wdev->auth_bsses[i]->pub);
+				wdev->auth_bsses[i] = NULL;
+			}
+		}
+		if (wdev->authtry_bsses[i]) {
+			req.bss = &wdev->authtry_bsses[i]->pub;
+			rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
+			if (wdev->authtry_bsses[i]) {
+				cfg80211_unhold_bss(wdev->authtry_bsses[i]);
+				cfg80211_put_bss(&wdev->authtry_bsses[i]->pub);
+				wdev->authtry_bsses[i] = NULL;
+			}
+		}
+	}
+}