nl80211: Provide access to STA TX/RX packet counters
The TX/RX packet counters are needed to fill in RADIUS Accounting
attributes Acct-Output-Packets and Acct-Input-Packets. We already
collect the needed information, but only the TX/RX bytes were
previously exposed through nl80211. Allow applications to fetch the
packet counters, too, to provide more complete support for accounting.
Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 8802d1b..f6e5637 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -526,6 +526,9 @@
* @NL80211_STA_INFO_SIGNAL: signal strength of last received PPDU (u8, dBm)
* @NL80211_STA_INFO_TX_BITRATE: current unicast tx rate, nested attribute
* containing info as possible, see &enum nl80211_sta_info_txrate.
+ * @NL80211_STA_INFO_RX_PACKETS: total received packet (u32, from this station)
+ * @NL80211_STA_INFO_TX_PACKETS: total transmitted packets (u32, to this
+ * station)
*/
enum nl80211_sta_info {
__NL80211_STA_INFO_INVALID,
@@ -537,6 +540,8 @@
NL80211_STA_INFO_PLINK_STATE,
NL80211_STA_INFO_SIGNAL,
NL80211_STA_INFO_TX_BITRATE,
+ NL80211_STA_INFO_RX_PACKETS,
+ NL80211_STA_INFO_TX_PACKETS,
/* keep last */
__NL80211_STA_INFO_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 33f43b0..8dcc464 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -178,6 +178,8 @@
* @STATION_INFO_SIGNAL: @signal filled
* @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled
* (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
+ * @STATION_INFO_RX_PACKETS: @rx_packets filled
+ * @STATION_INFO_TX_PACKETS: @tx_packets filled
*/
enum station_info_flags {
STATION_INFO_INACTIVE_TIME = 1<<0,
@@ -188,6 +190,8 @@
STATION_INFO_PLINK_STATE = 1<<5,
STATION_INFO_SIGNAL = 1<<6,
STATION_INFO_TX_BITRATE = 1<<7,
+ STATION_INFO_RX_PACKETS = 1<<8,
+ STATION_INFO_TX_PACKETS = 1<<9,
};
/**
@@ -235,6 +239,8 @@
* @plink_state: mesh peer link state
* @signal: signal strength of last received packet in dBm
* @txrate: current unicast bitrate to this station
+ * @rx_packets: packets received from this station
+ * @tx_packets: packets transmitted to this station
*/
struct station_info {
u32 filled;
@@ -246,6 +252,8 @@
u8 plink_state;
s8 signal;
struct rate_info txrate;
+ u32 rx_packets;
+ u32 tx_packets;
};
/**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index f453bb7..c43129e 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -341,11 +341,15 @@
sinfo->filled = STATION_INFO_INACTIVE_TIME |
STATION_INFO_RX_BYTES |
STATION_INFO_TX_BYTES |
+ STATION_INFO_RX_PACKETS |
+ STATION_INFO_TX_PACKETS |
STATION_INFO_TX_BITRATE;
sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
sinfo->rx_bytes = sta->rx_bytes;
sinfo->tx_bytes = sta->tx_bytes;
+ sinfo->rx_packets = sta->rx_packets;
+ sinfo->tx_packets = sta->tx_packets;
if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
sinfo->filled |= STATION_INFO_SIGNAL;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 67b18b3..badccf9 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1206,6 +1206,12 @@
nla_nest_end(msg, txrate);
}
+ if (sinfo->filled & STATION_INFO_RX_PACKETS)
+ NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
+ sinfo->rx_packets);
+ if (sinfo->filled & STATION_INFO_TX_PACKETS)
+ NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
+ sinfo->tx_packets);
nla_nest_end(msg, sinfoattr);
return genlmsg_end(msg, hdr);