Hostap Problem "Deauthenticate all stations". What's the problem?

[Douglas Diniz]

Hi, I'm running Hostap 0.6.8 in a powerpc terminal. This terminal has a
Ubiquiti wireless card (SR5) and the latest madwifi release by Ubiquiti
(descontinued now, and a bit old).

I configured hostap to work with WPA/CCMP. Everything is ok. I can connect 2
laptops and a iphone everything works fine.
The problem is that sometimes when I connect one of the laptops, all the
connections go down.

When this happen I see in the hostap log that the hostap try to connect the
laptop several times, and the following messages appear:


Wireless event: cmd=0x8c04 len=20
ath0: STA 00:1f:3c:12:ed:45 IEEE 802.11: disassociated
ath0: STA 00:1f:3c:12:ed:45 WPA: event 2 notification
madwifi_del_key: addr=00:1f:3c:12:ed:45 key_idx=0
ioctl[IEEE80211_IOCTL_DELKEY]: No such file or directory
madwifi_del_key: Failed to delete key (addr 00:1f:3c:12:ed:45 key_idx 0)
WPA: 00:1f:3c:12:ed:45 WPA_PTK entering state DISCONNECTED
WPA: 00:1f:3c:12:ed:45 WPA_PTK entering state INITIALIZE
madwifi_del_key: addr=00:1f:3c:12:ed:45 key_idx=0
ioctl[IEEE80211_IOCTL_DELKEY]: No such file or directory
madwifi_del_key: Failed to delete key (addr 00:1f:3c:12:ed:45 key_idx 0)
madwifi_set_sta_authorized: addr=00:1f:3c:12:ed:45 authorized=0
ioctl[IEEE80211_IOCTL_SETMLME]: No such file or directory
madwifi_set_sta_authorized: Failed to unauthorize STA 00:1f:3c:12:ed:45
ath0: STA 00:1f:3c:12:ed:45 IEEE 802.1X: unauthorizing port
Could not set station 00:1f:3c:12:ed:45 flags for kernel driver (errno=29).


After that all the connections go down and the following appears:



ath0: STA 00:1f:3c:12:ed:45 WPA: EAPOL-Key timeout
WPA: 00:1f:3c:12:ed:45 WPA_PTK entering state PTKSTART
ath0: STA 00:1f:3c:12:ed:45 WPA: sending 1/4 msg of 4-Way Handshake
WPA: Send EAPOL(version=2 secure=0 mic=0 ack=1 install=0 pairwise=8
kde_len=0 ke
yidx=0 encr=0)
TX EAPOL - hexdump(len=113): 00 1f 3c 12 ed 45 00 15 6d 54 c8 4d 88 8e 02 03
00
5f fe 00 8a 00 10 00 00 00 00 00 00 00 04 26 94 74 d0 09 52 39 6c 2c 8a cd
66 3b
 3b fc 3d 49 b1 6d 3f 7c f5 db 93 12 fe c5 00 11 3b 82 6e 00 00 00 00 00 00
00 0
0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Wireless event: cmd=0x8c02 len=96
Custom wireless event: 'STA-TRAFFIC-STAT
mac=00:1f:3c:12:ed:45
rx_packets=1
rx_bytes=19
tx_packets=0
tx_bytes=0
'
Wireless event: cmd=0x8c04 len=20
ath0: STA 00:1f:3c:12:ed:45 IEEE 802.11: disassociated
ath0: STA 00:1f:3c:12:ed:45 WPA: event 2 notification
madwifi_del_key: addr=00:1f:3c:12:ed:45 key_idx=0
ioctl[IEEE80211_IOCTL_DELKEY]: No such file or directory
madwifi_del_key: Failed to delete key (addr 00:1f:3c:12:ed:45 key_idx 0)
WPA: 00:1f:3c:12:ed:45 WPA_PTK entering state DISCONNECTED
WPA: 00:1f:3c:12:ed:45 WPA_PTK entering state INITIALIZE
madwifi_del_key: addr=00:1f:3c:12:ed:45 key_idx=0
ioctl[IEEE80211_IOCTL_DELKEY]: No such file or directory
madwifi_del_key: Failed to delete key (addr 00:1f:3c:12:ed:45 key_idx 0)
madwifi_set_sta_authorized: addr=00:1f:3c:12:ed:45 authorized=0
ioctl[IEEE80211_IOCTL_SETMLME]: No such file or directory
madwifi_set_sta_authorized: Failed to unauthorize STA 00:1f:3c:12:ed:45
ath0: STA 00:1f:3c:12:ed:45 IEEE 802.1X: unauthorizing port
Could not set station 00:1f:3c:12:ed:45 flags for kernel driver (errno=29).
Signal 2 received - terminating
ath0: STA 00:1e:c2:c7:b9:3d MLME:
MLME-DEAUTHENTICATE.indication(00:1e:c2:c7:b9:
3d, 1)
ath0: STA 00:1e:c2:c7:b9:3d MLME: MLME-DELETEKEYS.request(00:1e:c2:c7:b9:3d)

madwifi_del_key: addr=00:1e:c2:c7:b9:3d key_idx=0
Removing station 00:1e:c2:c7:b9:3d
ath0: STA 00:19:7d:af:fd:f4 MLME:
MLME-DEAUTHENTICATE.indication(00:19:7d:af:fd:
f4, 1)
ath0: STA 00:19:7d:af:fd:f4 MLME: MLME-DELETEKEYS.request(00:19:7d:af:fd:f4)

madwifi_del_key: addr=00:19:7d:af:fd:f4 key_idx=0
Removing station 00:19:7d:af:fd:f4
Flushing old station entries
madwifi_sta_deauth: addr=ff:ff:ff:ff:ff:ff reason_code=3
Deauthenticate all stations
madwifi_sta_deauth: addr=ff:ff:ff:ff:ff:ff reason_code=2
madwifi_set_privacy: enabled=0
madwifi_set_ieee8021x: enabled=0
madwifi_set_iface_flags: dev_up=0





My hostap.conf is like that:


interface=ath0
driver=madwifi
logger_syslog=-1
logger_syslog_level=2
logger_stdout=-1
logger_stdout_level=2
debug=0
dump_file=/tmp/hostapd.dump
ctrl_interface=/var/run/
hostapd
ctrl_interface_group=0
ssid=testeDouglas
auth_algs=3
eapol_key_index_workaround=0
eap_server=0
wpa=1
wpa_passphrase=testewpa
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP


Someone knows what is happen?

Thanks
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