This logic is already implemented in ieee80211_rx_mgmt_beacon.
The purpose is to ignore probe responses that are received
on adjacent channels. This can happen in 2.4GHz since
channels overlap.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
---
net/mac80211/mlme.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index e3f71b0..d982d61 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2805,6 +2805,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb)
{
struct ieee80211_mgmt *mgmt = (void *)skb->data;
+ struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_if_managed *ifmgd;
struct ieee80211_rx_status *rx_status = (void *) skb->cb;
size_t baselen, len = skb->len;
@@ -2814,6 +2815,19 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
sdata_assert_lock(sdata);
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ if (!chanctx_conf) {
+ rcu_read_unlock();
+ return;
+ }
+
+ if (rx_status->freq != chanctx_conf->def.chan->center_freq) {
+ rcu_read_unlock();
+ return;
+ }
+ rcu_read_unlock();
+
if (!ether_addr_equal(mgmt->da, sdata->vif.addr))
return; /* ignore ProbeResp to foreign address */
--
1.8.3.2
--
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