Felix Fietkau
002fcaf065
Commit da4be02fcd ("hostapd: fix a race condition on adding AP mode
wds sta interfaces") made netifd the only process that adds WDS station
interfaces to the bridge. Its hostapd patch 711 copies bridge into
wds_bridge when it parses bridge= and wds_bridge is still empty, and
hostapd.sh writes an empty wds_bridge= after bridge=.
ap.uc does not write the empty wds_bridge=, so hostapd adds each WDS
station interface to the bridge, and netifd adds it again. The commit
above names the effects of the race: incomplete bridge vlan settings,
or a client that hostapd refuses.
Write an empty wds_bridge= for a BSS with a bridge, as hostapd.sh does.
The line must follow bridge=, because patch 711 fills an empty
wds_bridge at parse time; append_vars() writes bridge first. A
wds_bridge that the config sets for a wds BSS still applies, as in
mac80211.sh.
The previous change makes netifd link WDS station interfaces that
appeared while it had no data for their vif.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
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