wpa_supplication: ath9k wds mode with wpa2 , station will block.

[孙建希]

all:

lede wpa_supplicant v2.7-devel.

Ath9k in 4addr wds mode. After a while the station will break off.
Station connectivity remains. But `ifconfig` cannot see any recv
packet.

wlan0     Link encap:Ethernet  HWaddr C8:EE:A6:2E:60:D8
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:17402577 errors:0 dropped:0 overruns:0 frame:0
          TX packets:33065526 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1165838023 (1.0 GiB)  TX bytes:51166664044 (47.6 GiB)

RX packets count stop increase.


/sys/kernel/debug/ieee80211/phy0/ath9k/recv
         PKTS-ALL :   21445223
         BYTES-ALL : 2458906640


  PKTS-ALL still increase.


my wireless config is :

config wifi-iface 'default_radio0'
        option device 'radio0'
        option network 'lan'
        option mode 'sta'
        option ssid 'ap-jianxi'
        option encryption 'psk2'
        option key 12345600
        option wds 1


when use encryption none or psk , everything is ok.