Return-path: Received: from mail-ey0-f202.google.com ([209.85.215.202]:60683 "EHLO mail-ey0-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751190Ab1LIWbf (ORCPT ); Fri, 9 Dec 2011 17:31:35 -0500 Received: by eaad1 with SMTP id d1so21317eaa.1 for ; Fri, 09 Dec 2011 14:31:34 -0800 (PST) Received: from wpaz9.hot.corp.google.com (wpaz9.hot.corp.google.com [172.24.198.73]) by hpza10.eem.corp.google.com (Postfix) with ESMTPS id 95FCA20004E for ; Fri, 9 Dec 2011 14:31:33 -0800 (PST) Received: from glenhelen.mtv.corp.google.com (glenhelen.mtv.corp.google.com [172.22.72.223]) by wpaz9.hot.corp.google.com with ESMTP id pB9MVVsH032537 for ; Fri, 9 Dec 2011 14:31:32 -0800 From: Paul Stewart Date: Fri, 9 Dec 2011 11:01:49 -0800 Subject: [PATCH] cfg80211: Return beacon loss count in station To: linux-wireless@vger.kernel.org Message-Id: <20111209223131.71B17206F0@glenhelen.mtv.corp.google.com> (sfid-20111209_233139_912049_EC569042) Sender: linux-wireless-owner@vger.kernel.org List-ID: If station info contains a beacon loss count, return it to userspace. Signed-off-by: Paul Stewart --- include/linux/nl80211.h | 2 ++ include/net/cfg80211.h | 7 ++++++- net/mac80211/cfg.c | 4 +++- net/mac80211/mlme.c | 8 ++++++++ net/mac80211/sta_info.h | 2 ++ net/wireless/nl80211.c | 3 +++ 6 files changed, 24 insertions(+), 2 deletions(-) diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index a187606..3c88e7a 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -1651,6 +1651,7 @@ enum nl80211_sta_bss_param { * containing info as possible, see &enum nl80211_sta_bss_param * @NL80211_STA_INFO_CONNECTED_TIME: time since the station is last connected * @NL80211_STA_INFO_STA_FLAGS: Contains a struct nl80211_sta_flag_update. + * @NL80211_STA_INFO_BEACON_LOSS: count of times beacon loss was detected (u32) * @__NL80211_STA_INFO_AFTER_LAST: internal * @NL80211_STA_INFO_MAX: highest possible station info attribute */ @@ -1673,6 +1674,7 @@ enum nl80211_sta_info { NL80211_STA_INFO_BSS_PARAM, NL80211_STA_INFO_CONNECTED_TIME, NL80211_STA_INFO_STA_FLAGS, + NL80211_STA_INFO_BEACON_LOSS, /* keep last */ __NL80211_STA_INFO_AFTER_LAST, diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 3de1c39..0144de8 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -505,6 +505,7 @@ struct station_parameters { * @STATION_INFO_CONNECTED_TIME: @connected_time filled * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled * @STATION_INFO_STA_FLAGS: @sta_flags filled + * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled */ enum station_info_flags { STATION_INFO_INACTIVE_TIME = 1<<0, @@ -525,7 +526,8 @@ enum station_info_flags { STATION_INFO_BSS_PARAM = 1<<15, STATION_INFO_CONNECTED_TIME = 1<<16, STATION_INFO_ASSOC_REQ_IES = 1<<17, - STATION_INFO_STA_FLAGS = 1<<18 + STATION_INFO_STA_FLAGS = 1<<18, + STATION_INFO_BEACON_LOSS_COUNT = 1<<19 }; /** @@ -623,6 +625,7 @@ struct sta_bss_parameters { * the cfg80211_new_sta() calls to notify user space of the IEs. * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets. * @sta_flags: station flags mask & values + * @beacon_loss_count: Number of times beacon loss event has triggered. */ struct station_info { u32 filled; @@ -650,6 +653,8 @@ struct station_info { const u8 *assoc_req_ies; size_t assoc_req_ies_len; + u32 beacon_loss_count; + /* * Note: Add a new enum station_info_flags value for each new field and * use it to check which fields are initialized. diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 393b2a4..4b9c8ce 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -355,7 +355,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) STATION_INFO_RX_DROP_MISC | STATION_INFO_BSS_PARAM | STATION_INFO_CONNECTED_TIME | - STATION_INFO_STA_FLAGS; + STATION_INFO_STA_FLAGS | + STATION_INFO_BEACON_LOSS_COUNT; do_posix_clock_monotonic_gettime(&uptime); sinfo->connected_time = uptime.tv_sec - sta->last_connected; @@ -368,6 +369,7 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) sinfo->tx_retries = sta->tx_retry_count; sinfo->tx_failed = sta->tx_retry_failed; sinfo->rx_dropped_misc = sta->rx_dropped; + sinfo->beacon_loss_count = sta->beacon_loss_count; if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 09019d1..b9f6fe3 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1381,6 +1381,14 @@ void ieee80211_beacon_connection_loss_work(struct work_struct *work) struct ieee80211_sub_if_data *sdata = container_of(work, struct ieee80211_sub_if_data, u.mgd.beacon_connection_loss_work); + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct sta_info *sta; + + if (ifmgd->associated) { + sta = sta_info_get(sdata, ifmgd->bssid); + if (sta) + sta->beacon_loss_count++; + } if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR) __ieee80211_connection_loss(sdata); diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 1a14fab..75dfc10 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -262,6 +262,7 @@ struct sta_ampdu_mlme { * @dummy: indicate a dummy station created for receiving * EAP frames before association * @sta: station information we share with the driver + * @beacon_loss_count: number of times beacon loss has triggered */ struct sta_info { /* General information, mostly static */ @@ -352,6 +353,7 @@ struct sta_info { #endif unsigned int lost_packets; + unsigned int beacon_loss_count; /* should be right in front of sta to be in the same cache line */ bool dummy; diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index ba43966..a39d1b3 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2390,6 +2390,9 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, if (sinfo->filled & STATION_INFO_TX_FAILED) NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED, sinfo->tx_failed); + if (sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) + NLA_PUT_U32(msg, NL80211_STA_INFO_BEACON_LOSS, + sinfo->beacon_loss_count); if (sinfo->filled & STATION_INFO_BSS_PARAM) { bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); if (!bss_param) -- 1.7.3.1