git.openwrt.org Git - openwrt/staging/nbd.git/blob

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Wed, 2 Oct 2024 12:35:13 +0200
   3 Subject: [PATCH] wifi: mac80211: filter on monitor interfaces based on
   4  configured channel
   5
   6 When a monitor interface has an assigned channel (only happens with the
   7 NO_VIRTUAL_MONITOR feature), only pass packets received on that channel.
   8 This is useful for monitoring on multiple channels at the same time using
   9 multiple monitor interfaces.
  10
  11 Signed-off-by: Felix Fietkau <nbd@nbd.name>
  12 ---
  13
  14 --- a/net/mac80211/rx.c
  15 +++ b/net/mac80211/rx.c
  16 @@ -837,6 +837,13 @@ ieee80211_rx_monitor(struct ieee80211_lo
  17         ieee80211_handle_mu_mimo_mon(monitor_sdata, origskb, rtap_space);
  18
  19         list_for_each_entry_rcu(sdata, &local->mon_list, u.mntr.list) {
  20 +               struct cfg80211_chan_def *chandef;
  21 +
  22 +               chandef = &sdata->vif.bss_conf.chanreq.oper;
  23 +               if (chandef->chan &&
  24 +                   chandef->chan->center_freq != status->freq)
  25 +                       continue;
  26 +
  27                 if (!prev_sdata) {
  28                         prev_sdata = sdata;
  29                         continue;