cfg80211/nl80211: implement station attribute retrieval
After a station is added to the kernel's structures, userspace
has to be able to retrieve statistics about that station, especially
whether the station was idle and how much bytes were transferred
to and from it. This adds the necessary code to nl80211.
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>
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 85e2d7d..9fecf90 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -157,6 +157,9 @@
* restriction (at most %NL80211_MAX_SUPP_RATES).
* @NL80211_ATTR_STA_VLAN: interface index of VLAN interface to move station
* to, or the AP interface the station was originally added to to.
+ * @NL80211_ATTR_STA_STATS: statistics for a station, part of station info
+ * given for %NL80211_CMD_GET_STATION, nested attribute containing
+ * info as possible, see &enum nl80211_sta_stats.
*
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -190,6 +193,7 @@
NL80211_ATTR_STA_LISTEN_INTERVAL,
NL80211_ATTR_STA_SUPPORTED_RATES,
NL80211_ATTR_STA_VLAN,
+ NL80211_ATTR_STA_STATS,
/* add attributes here, update the policy in nl80211.c */
@@ -252,4 +256,28 @@
NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1
};
+/**
+ * enum nl80211_sta_stats - station statistics
+ *
+ * These attribute types are used with %NL80211_ATTR_STA_STATS
+ * when getting information about a station.
+ *
+ * @__NL80211_STA_STAT_INVALID: attribute number 0 is reserved
+ * @NL80211_STA_STAT_INACTIVE_TIME: time since last activity (u32, msecs)
+ * @NL80211_STA_STAT_RX_BYTES: total received bytes (u32, from this station)
+ * @NL80211_STA_STAT_TX_BYTES: total transmitted bytes (u32, to this station)
+ * @__NL80211_STA_STAT_AFTER_LAST: internal
+ * @NL80211_STA_STAT_MAX: highest possible station stats attribute
+ */
+enum nl80211_sta_stats {
+ __NL80211_STA_STAT_INVALID,
+ NL80211_STA_STAT_INACTIVE_TIME,
+ NL80211_STA_STAT_RX_BYTES,
+ NL80211_STA_STAT_TX_BYTES,
+
+ /* keep last */
+ __NL80211_STA_STAT_AFTER_LAST,
+ NL80211_STA_STAT_MAX = __NL80211_STA_STAT_AFTER_LAST - 1
+};
+
#endif /* __LINUX_NL80211_H */