---

yaml
---
r: 158892
b: refs/heads/master
c: 19957bb
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 517357c685ccc4b5783cc7dbdae8824ada19a97f
+refs/heads/master: 19957bb399e2722719c0e20c9ae91cf8b6aaff04

trunk/include/net/cfg80211.h

@@ -584,7 +584,6 @@ enum cfg80211_signal_type {
  *	is no guarantee that these are well-formed!)
  * @len_information_elements: total length of the information elements
  * @signal: signal strength value (type depends on the wiphy's signal_type)
- * @hold: BSS should not expire
  * @free_priv: function pointer to free private data
  * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
  */
@@ -642,66 +641,36 @@ struct cfg80211_crypto_settings {
  *
  * This structure provides information needed to complete IEEE 802.11
  * authentication.
- * NOTE: This structure will likely change when more code from mac80211 is
- * moved into cfg80211 so that non-mac80211 drivers can benefit from it, too.
- * Before using this in a driver that does not use mac80211, it would be better
- * to check the status of that work and better yet, volunteer to work on it.
- *
- * @chan: The channel to use or %NULL if not specified (auto-select based on
- *	scan results)
- * @peer_addr: The address of the peer STA (AP BSSID in infrastructure case);
- *	this field is required to be present; if the driver wants to help with
- *	BSS selection, it should use (yet to be added) MLME event to allow user
- *	space SME to be notified of roaming candidate, so that the SME can then
- *	use the authentication request with the recommended BSSID and whatever
- *	other data may be needed for authentication/association
- * @ssid: SSID or %NULL if not yet available
- * @ssid_len: Length of ssid in octets
+ *
+ * @bss: The BSS to authenticate with.
  * @auth_type: Authentication type (algorithm)
  * @ie: Extra IEs to add to Authentication frame or %NULL
  * @ie_len: Length of ie buffer in octets
  */
 struct cfg80211_auth_request {
-	struct ieee80211_channel *chan;
-	u8 *peer_addr;
-	const u8 *ssid;
-	size_t ssid_len;
-	enum nl80211_auth_type auth_type;
+	struct cfg80211_bss *bss;
 	const u8 *ie;
 	size_t ie_len;
+	enum nl80211_auth_type auth_type;
 };
 
 /**
  * struct cfg80211_assoc_request - (Re)Association request data
  *
  * This structure provides information needed to complete IEEE 802.11
  * (re)association.
- * NOTE: This structure will likely change when more code from mac80211 is
- * moved into cfg80211 so that non-mac80211 drivers can benefit from it, too.
- * Before using this in a driver that does not use mac80211, it would be better
- * to check the status of that work and better yet, volunteer to work on it.
- *
- * @chan: The channel to use or %NULL if not specified (auto-select based on
- *	scan results)
- * @peer_addr: The address of the peer STA (AP BSSID); this field is required
- *	to be present and the STA must be in State 2 (authenticated) with the
- *	peer STA
- * @ssid: SSID
- * @ssid_len: Length of ssid in octets
+ * @bss: The BSS to associate with.
  * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
  * @ie_len: Length of ie buffer in octets
  * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
  * @crypto: crypto settings
  */
 struct cfg80211_assoc_request {
-	struct ieee80211_channel *chan;
-	u8 *peer_addr;
-	const u8 *ssid;
-	size_t ssid_len;
+	struct cfg80211_bss *bss;
 	const u8 *ie;
 	size_t ie_len;
-	bool use_mfp;
 	struct cfg80211_crypto_settings crypto;
+	bool use_mfp;
 };
 
 /**
@@ -710,16 +679,16 @@ struct cfg80211_assoc_request {
  * This structure provides information needed to complete IEEE 802.11
  * deauthentication.
  *
- * @peer_addr: The address of the peer STA (AP BSSID); this field is required
- *	to be present and the STA must be authenticated with the peer STA
+ * @bss: the BSS to deauthenticate from
  * @ie: Extra IEs to add to Deauthentication frame or %NULL
  * @ie_len: Length of ie buffer in octets
+ * @reason_code: The reason code for the deauthentication
  */
 struct cfg80211_deauth_request {
-	u8 *peer_addr;
-	u16 reason_code;
+	struct cfg80211_bss *bss;
 	const u8 *ie;
 	size_t ie_len;
+	u16 reason_code;
 };
 
 /**
@@ -728,16 +697,16 @@ struct cfg80211_deauth_request {
  * This structure provides information needed to complete IEEE 802.11
  * disassocation.
  *
- * @peer_addr: The address of the peer STA (AP BSSID); this field is required
- *	to be present and the STA must be associated with the peer STA
+ * @bss: the BSS to disassociate from
  * @ie: Extra IEs to add to Disassociation frame or %NULL
  * @ie_len: Length of ie buffer in octets
+ * @reason_code: The reason code for the disassociation
  */
 struct cfg80211_disassoc_request {
-	u8 *peer_addr;
-	u16 reason_code;
+	struct cfg80211_bss *bss;
 	const u8 *ie;
 	size_t ie_len;
+	u16 reason_code;
 };
 
 /**
@@ -1252,6 +1221,9 @@ extern void wiphy_free(struct wiphy *wiphy);
 
 /* internal struct */
 struct cfg80211_conn;
+struct cfg80211_internal_bss;
+
+#define MAX_AUTH_BSSES		4
 
 /**
  * struct wireless_dev - wireless per-netdev state
@@ -1281,7 +1253,6 @@ struct wireless_dev {
 	struct net_device *netdev;
 
 	/* currently used for IBSS and SME - might be rearranged later */
-	struct cfg80211_bss *current_bss;
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
 	u8 ssid_len;
 	enum {
@@ -1291,6 +1262,10 @@ struct wireless_dev {
 	} sme_state;
 	struct cfg80211_conn *conn;
 
+	struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES];
+	struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
+	struct cfg80211_internal_bss *current_bss; /* associated / joined */
+
 #ifdef CONFIG_WIRELESS_EXT
 	/* wext data */
 	struct {
@@ -1812,23 +1787,6 @@ void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len, gfp
  */
 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp);
 
-/**
- * cfg80211_hold_bss - exclude bss from expiration
- * @bss: bss which should not expire
- *
- * In a case when the BSS is not updated but it shouldn't expire this
- * function can be used to mark the BSS to be excluded from expiration.
- */
-void cfg80211_hold_bss(struct cfg80211_bss *bss);
-
-/**
- * cfg80211_unhold_bss - remove expiration exception from the BSS
- * @bss: bss which can expire again
- *
- * This function marks the BSS to be expirable again.
- */
-void cfg80211_unhold_bss(struct cfg80211_bss *bss);
-
 /**
  * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
  * @dev: network device

trunk/net/mac80211/cfg.c

@@ -1173,6 +1173,7 @@ static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
 			  struct cfg80211_auth_request *req)
 {
 	struct ieee80211_sub_if_data *sdata;
+	const u8 *ssid;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
@@ -1193,15 +1194,16 @@ static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
 		return -EOPNOTSUPP;
 	}
 
-	memcpy(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN);
+	memcpy(sdata->u.mgd.bssid, req->bss->bssid, ETH_ALEN);
 
-	sdata->local->oper_channel = req->chan;
+	sdata->local->oper_channel = req->bss->channel;
 	ieee80211_hw_config(sdata->local, 0);
 
-	if (!req->ssid)
+	ssid = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID);
+	if (!ssid)
 		return -EINVAL;
-	memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len);
-	sdata->u.mgd.ssid_len = req->ssid_len;
+	sdata->u.mgd.ssid_len = *(ssid + 1);
+	memcpy(sdata->u.mgd.ssid, ssid + 2, sdata->u.mgd.ssid_len);
 
 	kfree(sdata->u.mgd.sme_auth_ie);
 	sdata->u.mgd.sme_auth_ie = NULL;
@@ -1227,7 +1229,7 @@ static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	if (memcmp(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN) != 0 ||
+	if (memcmp(sdata->u.mgd.bssid, req->bss->bssid, ETH_ALEN) != 0 ||
 	    !(sdata->u.mgd.flags & IEEE80211_STA_AUTHENTICATED))
 		return -ENOLINK; /* not authenticated */
 
@@ -1239,15 +1241,9 @@ static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
 		    req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104)
 			sdata->u.mgd.flags |= IEEE80211_STA_DISABLE_11N;
 
-	sdata->local->oper_channel = req->chan;
+	sdata->local->oper_channel = req->bss->channel;
 	ieee80211_hw_config(sdata->local, 0);
 
-	if (!req->ssid)
-		return -EINVAL;
-
-	memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len);
-	sdata->u.mgd.ssid_len = req->ssid_len;
-
 	ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len);
 	if (ret && ret != -EALREADY)
 		return ret;

trunk/net/mac80211/mlme.c

@@ -876,8 +876,6 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 		bss_info_changed |= ieee80211_handle_bss_capability(sdata,
 			bss->cbss.capability, bss->has_erp_value, bss->erp_value);
 
-		cfg80211_hold_bss(&bss->cbss);
-
 		ieee80211_rx_bss_put(local, bss);
 	}
 
@@ -1031,10 +1029,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 				   conf->channel->center_freq,
 				   ifmgd->ssid, ifmgd->ssid_len);
 
-	if (bss) {
-		cfg80211_unhold_bss(&bss->cbss);
+	if (bss)
 		ieee80211_rx_bss_put(local, bss);
-	}
 
 	if (self_disconnected) {
 		if (deauth)

trunk/net/wireless/core.c

@@ -583,15 +583,12 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
 #endif
 			cfg80211_disconnect(rdev, dev,
 					    WLAN_REASON_DEAUTH_LEAVING, true);
+			cfg80211_mlme_down(rdev, dev);
 			break;
 		default:
 			break;
 		}
 		break;
-	case NETDEV_DOWN:
-		kfree(wdev->conn);
-		wdev->conn = NULL;
-		break;
 	case NETDEV_UP:
 #ifdef CONFIG_WIRELESS_EXT
 		switch (wdev->iftype) {

trunk/net/wireless/core.h

@@ -110,12 +110,30 @@ struct cfg80211_internal_bss {
 	struct rb_node rbn;
 	unsigned long ts;
 	struct kref ref;
-	bool hold, ies_allocated;
+	atomic_t hold;
+	bool ies_allocated;
 
 	/* must be last because of priv member */
 	struct cfg80211_bss pub;
 };
 
+static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
+{
+	return container_of(pub, struct cfg80211_internal_bss, pub);
+}
+
+static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
+{
+	atomic_inc(&bss->hold);
+}
+
+static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
+{
+	int r = atomic_dec_return(&bss->hold);
+	WARN_ON(r < 0);
+}
+
+
 struct cfg80211_registered_device *cfg80211_drv_by_wiphy_idx(int wiphy_idx);
 int get_wiphy_idx(struct wiphy *wiphy);
 
@@ -176,6 +194,26 @@ void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
 int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
 			struct net_device *dev, bool nowext);
 
+/* MLME */
+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);
+int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+			struct net_device *dev, struct ieee80211_channel *chan,
+			const u8 *bssid, const u8 *ssid, int ssid_len,
+			const u8 *ie, int ie_len, bool use_mfp,
+			struct cfg80211_crypto_settings *crypt);
+int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev, const u8 *bssid,
+			 const u8 *ie, int ie_len, u16 reason);
+int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
+			   struct net_device *dev, const u8 *bssid,
+			   const u8 *ie, int ie_len, u16 reason);
+void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
+			struct net_device *dev);
+
 /* SME */
 int cfg80211_connect(struct cfg80211_registered_device *rdev,
 		     struct net_device *dev,
@@ -193,5 +231,6 @@ void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, u8 *ie,
 			     size_t ie_len, u16 reason, bool from_ap);
 void cfg80211_sme_scan_done(struct net_device *dev);
 void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
+void cfg80211_sme_disassoc(struct net_device *dev, int idx);
 
 #endif /* __NET_WIRELESS_CORE_H */

trunk/net/wireless/ibss.c

@@ -33,11 +33,11 @@ void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp)
 
 	if (wdev->current_bss) {
 		cfg80211_unhold_bss(wdev->current_bss);
-		cfg80211_put_bss(wdev->current_bss);
+		cfg80211_put_bss(&wdev->current_bss->pub);
 	}
 
-	cfg80211_hold_bss(bss);
-	wdev->current_bss = bss;
+	cfg80211_hold_bss(bss_from_pub(bss));
+	wdev->current_bss = bss_from_pub(bss);
 
 	nl80211_send_ibss_bssid(wiphy_to_dev(wdev->wiphy), dev, bssid, gfp);
 #ifdef CONFIG_WIRELESS_EXT
@@ -78,7 +78,7 @@ void cfg80211_clear_ibss(struct net_device *dev, bool nowext)
 
 	if (wdev->current_bss) {
 		cfg80211_unhold_bss(wdev->current_bss);
-		cfg80211_put_bss(wdev->current_bss);
+		cfg80211_put_bss(&wdev->current_bss->pub);
 	}
 
 	wdev->current_bss = NULL;
@@ -212,7 +212,7 @@ int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
 		return -EINVAL;
 
 	if (wdev->current_bss)
-		chan = wdev->current_bss->channel;
+		chan = wdev->current_bss->pub.channel;
 	else if (wdev->wext.ibss.channel)
 		chan = wdev->wext.ibss.channel;
 
@@ -352,7 +352,7 @@ int cfg80211_ibss_wext_giwap(struct net_device *dev,
 	ap_addr->sa_family = ARPHRD_ETHER;
 
 	if (wdev->current_bss)
-		memcpy(ap_addr->sa_data, wdev->current_bss->bssid, ETH_ALEN);
+		memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
 	else
 		memcpy(ap_addr->sa_data, wdev->wext.ibss.bssid, ETH_ALEN);
 	return 0;