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>

1 files changed, 63 insertions, 16 deletions

diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index c4e6d4b84a46..3427fe73d3c3 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -16,58 +16,105 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len, gf
 {
         struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
         struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
         nl80211_send_rx_auth(rdev, dev, buf, len, gfp);
+        cfg80211_sme_rx_auth(dev, buf, len);
 }
 EXPORT_SYMBOL(cfg80211_send_rx_auth);
 
 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
 {
-        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);
+        struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
+        u8 *ie = mgmt->u.assoc_resp.variable;
+        int ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
+
+        status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
+
         nl80211_send_rx_assoc(rdev, dev, buf, len, gfp);
+
+        cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
+                                status_code, gfp);
 }
 EXPORT_SYMBOL(cfg80211_send_rx_assoc);
 
 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
 {
-        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);
+        struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
+
         nl80211_send_deauth(rdev, dev, buf, len, gfp);
+
+        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->da, dev->dev_addr, ETH_ALEN) == 0;
+                __cfg80211_disconnected(dev, gfp, NULL, 0,
+                                        reason_code, from_ap);
+
+                wdev->sme_state = CFG80211_SME_IDLE;
+        } else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
+                cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
+                                        WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
+        }
 }
 EXPORT_SYMBOL(cfg80211_send_deauth);
 
 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
 {
-        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);
+        struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
+
         nl80211_send_disassoc(rdev, dev, buf, len, gfp);
-}
-EXPORT_SYMBOL(cfg80211_send_disassoc);
 
-static void cfg80211_wext_disconnected(struct net_device *dev)
-{
-#ifdef CONFIG_WIRELESS_EXT
-        union iwreq_data wrqu;
-        memset(&wrqu, 0, sizeof(wrqu));
-        wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
-#endif
+        if (wdev->sme_state == CFG80211_SME_CONNECTED) {
+                u16 reason_code;
+                bool from_ap;
+
+                reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
+
+                from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0;
+                __cfg80211_disconnected(dev, gfp, NULL, 0,
+                                        reason_code, from_ap);
+
+                wdev->sme_state = CFG80211_SME_IDLE;
+        }
 }
+EXPORT_SYMBOL(cfg80211_send_disassoc);
 
 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp)
 {
-        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, gfp);
-        cfg80211_wext_disconnected(dev);
+        if (wdev->sme_state == CFG80211_SME_CONNECTING)
+                cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
+                                        WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
+        wdev->sme_state = CFG80211_SME_IDLE;
 }
 EXPORT_SYMBOL(cfg80211_send_auth_timeout);
 
 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp)
 {
-        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, gfp);
-        cfg80211_wext_disconnected(dev);
+        if (wdev->sme_state == CFG80211_SME_CONNECTING)
+                cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
+                                        WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
+        wdev->sme_state = CFG80211_SME_IDLE;
 }
 EXPORT_SYMBOL(cfg80211_send_assoc_timeout);