cfg80211: emulate connect with auth/assoc

This adds code to cfg80211 so that drivers (mac80211 right
now) that don't implement connect but rather auth/assoc can
still be used with the nl80211 connect command. This will
also be necessary for the wext compat code.

Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

include/net/cfg80211.h

@@ -1209,6 +1209,9 @@ extern void wiphy_unregister(struct wiphy *wiphy);
  */
 extern void wiphy_free(struct wiphy *wiphy);
 
+/* internal struct */
+struct cfg80211_conn;
+
 /**
  * struct wireless_dev - wireless per-netdev state
  *
@@ -1242,9 +1245,10 @@ struct wireless_dev {
 	u8 ssid_len;
 	enum {
 		CFG80211_SME_IDLE,
-		CFG80211_SME_CONNECTING, /* ->connect called */
+		CFG80211_SME_CONNECTING,
 		CFG80211_SME_CONNECTED,
 	} sme_state;
+	struct cfg80211_conn *conn;
 
 #ifdef CONFIG_WIRELESS_EXT
 	/* wext data */