mac80211: notify the driver about deauth

This can allow the driver to take action based on the reason
of the deauth.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 42 insertions, 18 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index b6817c4c4449..22b125913661 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2345,6 +2345,24 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL(ieee80211_ap_probereq_get);
 
+static void ieee80211_report_disconnect(struct ieee80211_sub_if_data *sdata,
+                                        const u8 *buf, size_t len, bool tx,
+                                        u16 reason)
+{
+        struct ieee80211_event event = {
+                .type = MLME_EVENT,
+                .u.mlme.data = tx ? DEAUTH_TX_EVENT : DEAUTH_RX_EVENT,
+                .u.mlme.reason = reason,
+        };
+
+        if (tx)
+                cfg80211_tx_mlme_mgmt(sdata->dev, buf, len);
+        else
+                cfg80211_rx_mlme_mgmt(sdata->dev, buf, len);
+
+        drv_event_callback(sdata->local, sdata, &event);
+}
+
 static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
 {
         struct ieee80211_local *local = sdata->local;
@@ -2370,8 +2388,9 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
         }
         mutex_unlock(&local->mtx);
 
-        cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
-                              IEEE80211_DEAUTH_FRAME_LEN);
+        ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true,
+                                    WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
+
         sdata_unlock(sdata);
 }
 
@@ -2676,7 +2695,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 
         ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
 
-        cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
+        ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, reason_code);
 }
 
 
@@ -2702,7 +2721,7 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 
         ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
 
-        cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
+        ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, reason_code);
 }
 
 static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
@@ -3509,8 +3528,9 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
                 ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
                                        WLAN_REASON_DEAUTH_LEAVING,
                                        true, deauth_buf);
-                cfg80211_tx_mlme_mgmt(sdata->dev, deauth_buf,
-                                      sizeof(deauth_buf));
+                ieee80211_report_disconnect(sdata, deauth_buf,
+                                            sizeof(deauth_buf), true,
+                                            WLAN_REASON_DEAUTH_LEAVING);
                 return;
         }
 
@@ -3628,8 +3648,8 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
         ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason,
                                tx, frame_buf);
 
-        cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
-                              IEEE80211_DEAUTH_FRAME_LEN);
+        ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true,
+                                    reason);
 }
 
 static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
@@ -4507,8 +4527,9 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
                                        WLAN_REASON_UNSPECIFIED,
                                        false, frame_buf);
 
-                cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
-                                      sizeof(frame_buf));
+                ieee80211_report_disconnect(sdata, frame_buf,
+                                            sizeof(frame_buf), true,
+                                            WLAN_REASON_UNSPECIFIED);
         }
 
         sdata_info(sdata, "authenticate with %pM\n", req->bss->bssid);
@@ -4608,8 +4629,9 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
                                        WLAN_REASON_UNSPECIFIED,
                                        false, frame_buf);
 
-                cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
-                                      sizeof(frame_buf));
+                ieee80211_report_disconnect(sdata, frame_buf,
+                                            sizeof(frame_buf), true,
+                                            WLAN_REASON_UNSPECIFIED);
         }
 
         if (ifmgd->auth_data && !ifmgd->auth_data->done) {
@@ -4899,8 +4921,9 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
                                                req->reason_code, tx,
                                                frame_buf);
                 ieee80211_destroy_auth_data(sdata, false);
-                cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
-                                      IEEE80211_DEAUTH_FRAME_LEN);
+                ieee80211_report_disconnect(sdata, frame_buf,
+                                            sizeof(frame_buf), true,
+                                            req->reason_code);
 
                 return 0;
         }
@@ -4914,8 +4937,9 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 
                 ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
                                        req->reason_code, tx, frame_buf);
-                cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
-                                      IEEE80211_DEAUTH_FRAME_LEN);
+                ieee80211_report_disconnect(sdata, frame_buf,
+                                            sizeof(frame_buf), true,
+                                            req->reason_code);
                 return 0;
         }
 
@@ -4947,8 +4971,8 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
                                req->reason_code, !req->local_state_change,
                                frame_buf);
 
-        cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
-                              IEEE80211_DEAUTH_FRAME_LEN);
+        ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true,
+                                    req->reason_code);
 
         return 0;
 }