Commit f92e0cf1 authored Oct 09, 2024 by Felix Fietkau Committed by Johannes Berg Oct 23, 2024

wifi: mac80211: filter on monitor interfaces based on configured channel

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>
Link: https://patch.msgid.link/1bbe55107ba0f2e62ea90f305faeb7ba9247ef29.1728462320.git-series.nbd@nbd.name

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 342afe69

net/mac80211/rx.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -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;