From 98c8a60a04316e94ccea8221cf16768ce91bd214 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Tue, 17 Feb 2009 13:24:57 +0200 Subject: [PATCH] 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 Acked-by: Johannes Berg Signed-off-by: John W. Linville --- include/linux/nl80211.h | 5 +++++ include/net/cfg80211.h | 8 ++++++++ net/mac80211/cfg.c | 4 ++++ net/wireless/nl80211.c | 6 ++++++ 4 files changed, 23 insertions(+) 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 @@ enum nl80211_rate_info { * @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 @@ enum nl80211_sta_info { 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 @@ struct station_parameters { * @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 @@ enum station_info_flags { 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 @@ struct rate_info { * @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 @@ struct station_info { 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 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) 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 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, 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); -- 1.8.2.3