mac80211: implement station stats retrieval

This implements the required cfg80211 callback in mac80211
to allow userspace to get station statistics.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 26 insertions, 0 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 4c1ce353c662..11156b381ec3 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -269,6 +269,31 @@ static int ieee80211_config_default_key(struct wiphy *wiphy,
         return 0;
 }
 
+static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
+                                 u8 *mac, struct station_stats *stats)
+{
+        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+        struct sta_info *sta;
+
+        sta = sta_info_get(local, mac);
+        if (!sta)
+                return -ENOENT;
+
+        /* XXX: verify sta->dev == dev */
+
+        stats->filled = STATION_STAT_INACTIVE_TIME |
+                        STATION_STAT_RX_BYTES |
+                        STATION_STAT_TX_BYTES;
+
+        stats->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
+        stats->rx_bytes = sta->rx_bytes;
+        stats->tx_bytes = sta->tx_bytes;
+
+        sta_info_put(sta);
+
+        return 0;
+}
+
 struct cfg80211_ops mac80211_config_ops = {
         .add_virtual_intf = ieee80211_add_iface,
         .del_virtual_intf = ieee80211_del_iface,
@@ -277,4 +302,5 @@ struct cfg80211_ops mac80211_config_ops = {
         .del_key = ieee80211_del_key,
         .get_key = ieee80211_get_key,
         .set_default_key = ieee80211_config_default_key,
+        .get_station = ieee80211_get_station,
 };