mac80211: fix broadcast frame handling for 4-addr AP VLANs
PATCH 1/1 mac80211: fix broadcast frame handling for 4-addr AP VLANs
Without this patch, broadcast frames from the station behind a 4-addr AP VLAN would be reflected back to the source. Fix this by checking the 4-addr flag before bridging multicast frames in the cell.
Signed-off-by Felix Fietkau <[email protected]>
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I hadn't noticed that v2 of my mac80211 4-addr patch had been merged already, so here's the fix from v3 as a separate patch
net/mac80211/rx.c +1 -1
@@ -1292,7 +1292,7 @@ ieee80211_deliver_skb(struct ieee80211_rif ((sdata->vif.type ==NL80211_IFTYPE_AP || sdata->vif.type ==NL80211_IFTYPE_AP_VLAN ) && !(sdata->flags &IEEE80211_SDATA_DONT_BRIDGE_PACKETS ) && - (rx->flags &IEEE80211_RX_RA_MATCH )) { + (rx->flags &IEEE80211_RX_RA_MATCH ) && !rx->sdata->use_4addr) {if (is_multicast_ether_addr (ehdr->h_dest)) {/* * send multicast frames both to higher layers in