Hi, while trying to get rx over nl80211 control port to work, I noticed the following issue when using pre-auth. The current kernel behavior is: after enabling control port, ETH_P_PAE frames and ETH_P_PREAUTH frames get forwarded to user user space. These frames only have one MAC address attached from the kernel API. In the scenario STA s -> AP a1 -> AP a2, where s sends a pre-auth frame to a2, a1 gets this frame over the nl80211 control port and only knows its source address (s' address). In order to forward it to a2 (re-inject it on a l2_packet interface), knowing the destination mac would be necessary. I'm currently working on kernel patches, which can use src and dst mac for forwarding control port frames with nl80211. Next steps/possible direction: As these patches may don't get into mainline or take some time, I will enable rx over control port only for wpa_supplicant and disable it for hostapd. I already include code for hostapd, which deals with src/dst addresses for forwarding. Advantages: Using nl80211 control port made wpa_supplicant connections really fast in my use cases. _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
