From d2859df5e7f00469011482d850fba652517a2eab Mon Sep 17 00:00:00 2001 From: Janusz Dziedzic Date: Wed, 6 Nov 2013 13:55:51 +0100 Subject: [PATCH] cfg80211/mac80211: DFS setup chandef for cac event To report channel width correctly we have to send correct channel parameters from mac80211 when calling cfg80211_cac_event(). This is required in case of using channel width higher than 20MHz and we have to set correct dfs channel state after CAC (NL80211_DFS_AVAILABLE). Signed-off-by: Janusz Dziedzic Reviewed-by: Luis R. Rodriguez Signed-off-by: Johannes Berg --- include/net/cfg80211.h | 2 ++ net/mac80211/cfg.c | 5 ++++- net/mac80211/iface.c | 5 ++++- net/mac80211/mlme.c | 6 ++++-- net/mac80211/util.c | 3 +++ net/wireless/mlme.c | 8 +++----- net/wireless/nl80211.c | 4 ++-- net/wireless/nl80211.h | 2 +- 8 files changed, 23 insertions(+), 12 deletions(-) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index b7a825ecff56..968f2ad40ccd 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -4150,6 +4150,7 @@ void cfg80211_radar_event(struct wiphy *wiphy, /** * cfg80211_cac_event - Channel availability check (CAC) event * @netdev: network device + * @chandef: chandef for the current channel * @event: type of event * @gfp: context flags * @@ -4158,6 +4159,7 @@ void cfg80211_radar_event(struct wiphy *wiphy, * also by full-MAC drivers. */ void cfg80211_cac_event(struct net_device *netdev, + const struct cfg80211_chan_def *chandef, enum nl80211_radar_event event, gfp_t gfp); diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 95667b088c5b..5232b0102143 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1050,6 +1050,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) struct ieee80211_local *local = sdata->local; struct beacon_data *old_beacon; struct probe_resp *old_probe_resp; + struct cfg80211_chan_def chandef; old_beacon = rtnl_dereference(sdata->u.ap.beacon); if (!old_beacon) @@ -1091,8 +1092,10 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); if (sdata->wdev.cac_started) { + chandef = sdata->vif.bss_conf.chandef; cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); - cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_ABORTED, + cfg80211_cac_event(sdata->dev, &chandef, + NL80211_RADAR_CAC_ABORTED, GFP_KERNEL); } diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index ff101ea1d9ae..c9b04425ffc7 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -749,6 +749,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, u32 hw_reconf_flags = 0; int i, flushed; struct ps_data *ps; + struct cfg80211_chan_def chandef; clear_bit(SDATA_STATE_RUNNING, &sdata->state); @@ -823,11 +824,13 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); if (sdata->wdev.cac_started) { + chandef = sdata->vif.bss_conf.chandef; WARN_ON(local->suspended); mutex_lock(&local->iflist_mtx); ieee80211_vif_release_channel(sdata); mutex_unlock(&local->iflist_mtx); - cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_ABORTED, + cfg80211_cac_event(sdata->dev, &chandef, + NL80211_RADAR_CAC_ABORTED, GFP_KERNEL); } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index eb660310ea7c..d39d27feb594 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1398,10 +1398,12 @@ void ieee80211_dfs_cac_timer_work(struct work_struct *work) struct ieee80211_sub_if_data *sdata = container_of(delayed_work, struct ieee80211_sub_if_data, dfs_cac_timer_work); + struct cfg80211_chan_def chandef = sdata->vif.bss_conf.chandef; ieee80211_vif_release_channel(sdata); - - cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_FINISHED, GFP_KERNEL); + cfg80211_cac_event(sdata->dev, &chandef, + NL80211_RADAR_CAC_FINISHED, + GFP_KERNEL); } /* MLME */ diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 592a18171f95..fd4fe5d61782 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -2259,14 +2259,17 @@ u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata; + struct cfg80211_chan_def chandef; mutex_lock(&local->iflist_mtx); list_for_each_entry(sdata, &local->interfaces, list) { cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); if (sdata->wdev.cac_started) { + chandef = sdata->vif.bss_conf.chandef; ieee80211_vif_release_channel(sdata); cfg80211_cac_event(sdata->dev, + &chandef, NL80211_RADAR_CAC_ABORTED, GFP_KERNEL); } diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index 6a6b1c8e907d..31f541f7e4ea 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -763,12 +763,12 @@ void cfg80211_radar_event(struct wiphy *wiphy, EXPORT_SYMBOL(cfg80211_radar_event); void cfg80211_cac_event(struct net_device *netdev, + const struct cfg80211_chan_def *chandef, enum nl80211_radar_event event, gfp_t gfp) { struct wireless_dev *wdev = netdev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); - struct cfg80211_chan_def chandef; unsigned long timeout; trace_cfg80211_cac_event(netdev, event); @@ -779,14 +779,12 @@ void cfg80211_cac_event(struct net_device *netdev, if (WARN_ON(!wdev->channel)) return; - cfg80211_chandef_create(&chandef, wdev->channel, NL80211_CHAN_NO_HT); - switch (event) { case NL80211_RADAR_CAC_FINISHED: timeout = wdev->cac_start_time + msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS); WARN_ON(!time_after_eq(jiffies, timeout)); - cfg80211_set_dfs_state(wiphy, &chandef, NL80211_DFS_AVAILABLE); + cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_AVAILABLE); break; case NL80211_RADAR_CAC_ABORTED: break; @@ -796,6 +794,6 @@ void cfg80211_cac_event(struct net_device *netdev, } wdev->cac_started = false; - nl80211_radar_notify(rdev, &chandef, event, netdev, gfp); + nl80211_radar_notify(rdev, chandef, event, netdev, gfp); } EXPORT_SYMBOL(cfg80211_cac_event); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 1ad11de6dd2f..04fa8bb1b4bb 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2168,7 +2168,7 @@ static inline u64 wdev_id(struct wireless_dev *wdev) } static int nl80211_send_chandef(struct sk_buff *msg, - struct cfg80211_chan_def *chandef) + const struct cfg80211_chan_def *chandef) { WARN_ON(!cfg80211_chandef_valid(chandef)); @@ -10874,7 +10874,7 @@ EXPORT_SYMBOL(cfg80211_cqm_txe_notify); void nl80211_radar_notify(struct cfg80211_registered_device *rdev, - struct cfg80211_chan_def *chandef, + const struct cfg80211_chan_def *chandef, enum nl80211_radar_event event, struct net_device *netdev, gfp_t gfp) { diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h index 2c0f2b3c07cb..b1b231324e10 100644 --- a/net/wireless/nl80211.h +++ b/net/wireless/nl80211.h @@ -70,7 +70,7 @@ int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, void nl80211_radar_notify(struct cfg80211_registered_device *rdev, - struct cfg80211_chan_def *chandef, + const struct cfg80211_chan_def *chandef, enum nl80211_radar_event event, struct net_device *netdev, gfp_t gfp); -- 2.39.5