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[11/11] wifi: mac80211: filter on monitor interfaces based on configured channel

Message ID 859d0e2138e7d918f9f10926bc2a937370033a94.1727869380.git-series.nbd@nbd.name
State New
Headers show
Series wifi: cfg80211/mac80211: improve support for multiple radios | expand

Commit Message

Felix Fietkau Oct. 2, 2024, 11:45 a.m. UTC 
When a monitor interface has an assigned channel (only happens with the
NO_VIRTUAL_MONITOR feature), only pass packets received on that channel.
This is useful for monitoring on multiple channels at the same time using
multiple monitor interfaces.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 net/mac80211/rx.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 5e43905fd26c..6df0f3953eec 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -837,6 +837,13 @@  ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 	ieee80211_handle_mu_mimo_mon(monitor_sdata, origskb, rtap_space);
 
 	list_for_each_entry_rcu(sdata, &local->mon_list, u.mntr.list) {
+		struct cfg80211_chan_def *chandef;
+
+		chandef = &sdata->vif.bss_conf.chanreq.oper;
+		if (chandef->chan &&
+		    chandef->chan->center_freq != status->freq)
+			continue;
+
 		if (!prev_sdata) {
 			prev_sdata = sdata;
 			continue;