From: Johannes Berg <johannes.berg@xxxxxxxxx>
In the NL80211_CMD_CH_SWITCH_STARTED_NOTIFY event, include the
NL80211_ATTR_CH_SWITCH_BLOCK_TX flag attribute if block-tx was
requested by the AP.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
include/net/cfg80211.h | 3 ++-
include/uapi/linux/nl80211.h | 3 ++-
net/mac80211/cfg.c | 2 +-
net/mac80211/mlme.c | 2 +-
net/wireless/nl80211.c | 17 +++++++++++------
5 files changed, 17 insertions(+), 10 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 4a5ae7fb7d59..23bc74d2523f 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -7531,6 +7531,7 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
* @dev: the device on which the channel switch started
* @chandef: the future channel definition
* @count: the number of TBTTs until the channel switch happens
+ * @quiet: whether or not immediate quiet was requested by the AP
*
* Inform the userspace about the channel switch that has just
* started, so that it can take appropriate actions (eg. starting
@@ -7538,7 +7539,7 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
*/
void cfg80211_ch_switch_started_notify(struct net_device *dev,
struct cfg80211_chan_def *chandef,
- u8 count);
+ u8 count, bool quiet);
/**
* ieee80211_operating_class_to_band - convert operating class to band
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 3e0d4a038ab6..83c860395dd6 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2079,7 +2079,8 @@ enum nl80211_commands {
* until the channel switch event.
* @NL80211_ATTR_CH_SWITCH_BLOCK_TX: flag attribute specifying that transmission
* must be blocked on the current channel (before the channel switch
- * operation).
+ * operation). Also included in the channel switch started event if quiet
+ * was requested by the AP.
* @NL80211_ATTR_CSA_IES: Nested set of attributes containing the IE information
* for the time while performing a channel switch.
* @NL80211_ATTR_CNTDWN_OFFS_BEACON: An array of offsets (u16) to the channel
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 454432ced0c9..f9d8ebf96e92 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3448,7 +3448,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
IEEE80211_QUEUE_STOP_REASON_CSA);
cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
- params->count);
+ params->count, params->block_tx);
if (changed) {
ieee80211_bss_info_change_notify(sdata, changed);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 67829667d394..d4da9822a111 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1509,7 +1509,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
mutex_unlock(&local->mtx);
cfg80211_ch_switch_started_notify(sdata->dev, &csa_ie.chandef,
- csa_ie.count);
+ csa_ie.count, csa_ie.mode);
if (local->ops->channel_switch) {
/* use driver's channel switch callback */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 67c52f4b45fa..ff9b162259fb 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -17061,7 +17061,7 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
struct cfg80211_chan_def *chandef,
gfp_t gfp,
enum nl80211_commands notif,
- u8 count)
+ u8 count, bool quiet)
{
struct sk_buff *msg;
void *hdr;
@@ -17082,9 +17082,13 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
if (nl80211_send_chandef(msg, chandef))
goto nla_put_failure;
- if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
- (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
+ if (notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) {
+ if (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count))
goto nla_put_failure;
+ if (quiet &&
+ nla_put_flag(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX))
+ goto nla_put_failure;
+ }
genlmsg_end(msg, hdr);
@@ -17117,13 +17121,13 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
cfg80211_sched_dfs_chan_update(rdev);
nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
- NL80211_CMD_CH_SWITCH_NOTIFY, 0);
+ NL80211_CMD_CH_SWITCH_NOTIFY, 0, false);
}
EXPORT_SYMBOL(cfg80211_ch_switch_notify);
void cfg80211_ch_switch_started_notify(struct net_device *dev,
struct cfg80211_chan_def *chandef,
- u8 count)
+ u8 count, bool quiet)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
@@ -17132,7 +17136,8 @@ void cfg80211_ch_switch_started_notify(struct net_device *dev,
trace_cfg80211_ch_switch_started_notify(dev, chandef);
nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
- NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
+ NL80211_CMD_CH_SWITCH_STARTED_NOTIFY,
+ count, quiet);
}
EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
--
2.29.2
