wpa_supplicant receives dissociate event

Wed May 20 22:57:44 PDT 2009

I monitored traffic on wireshark, AP is not sending dissociate frame. It is
the driver/card at wpa_supplicant end initiating the the dissociate.

One observation is when i run command "iwconfig wlan0" while wpa_supplicant
is running , i see the frequecy/channel varying. My AP works at channel 6 so
i think station card should be tuned to same channel, but instead i see it
changing continuosly.

 Is it a correct combination of wlan0 and wext to be used to make it work?
or i should try madwifi instead?

- Paresh

On Thu, May 21, 2009 at 12:51 AM, Dan Williams <dcbw at redhat.com> wrote:

> On Wed, 2009-05-20 at 17:34 +0530, Paresh Sawant wrote:
> >
> > Hi,
> >
> > I've built wpa_supplicant on Linux (kernel 2.6.25-14.fc9.i686), with
> > wext driver, and runing it on netgear wg311T(atheros AR5212). I start
> > the wpa_supplicant with -i wlan0 and -D wext, but it fails to do the
> > connection with WPA2-PSK configured AP. wireshark shows me that it
> > reaches till 2/4 of 4-way-hshake. But then it seems to receive
> > dissociate event from the hardware/driver. I'm passing correct key for
> > PSK auth.
>
> You'll have to find out from the driver why the disassociation is
> happening.  It might also be triggered by the AP itself, so you could
> also sniff packets from the air to figure out if the AP has
> disassociated you for some reason.
>
> Dan
>
> > Following is the log message -
> >
> > /******************debug
> > log****************************************************
> >
> > State: ASSOCIATED -> DISCONNECTED
> > wpa_driver_wext_set_operstate: operstate 0->0 (DORMANT)
> > WEXT: Operstate: linkmode=-1, operstate=5
> > EAPOL: External notification - portEnabled=0
> > EAPOL: SUPP_PAE entering state DISCONNECTED
> > EAPOL: SUPP_BE entering state INITIALIZE
> > EAPOL: External notification - portValid=0
> > EAPOL: External notification - EAP success=0
> > RX EAPOL from 00:1d:7e:f4:d7:07
> > RX EAPOL - hexdump(len=121): 02 03 00 75 02 00 8a 00 10 00 00 00 00 00
> > 00 00 00 fd cc 9e 98 1d 47 b3 25 9a 6d 8d fd 3d 71 55 8e e4 ef 5f ea
> > 9a 08 21 b1 be d0 20 55 2d 4a c7 a9 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 00 00 00 00 00 00 00 16 dd 14 00 0f ac 04 b0
> > 2a ff fe db bc a9 c5 e2 9d 88 ae d1 df 84 ba
> > Setting authentication timeout: 10 sec 0 usec
> > IEEE 802.1X RX: version=2 type=3 length=117
> >   EAPOL-Key type=2
> >   key_info 0x8a (ver=2 keyidx=0 rsvd=0 Pairwise Ack)
> >   key_length=16 key_data_length=22
> >   replay_counter - hexdump(len=8): 00 00 00 00 00 00 00 00
> >   key_nonce - hexdump(len=32): fd cc 9e 98 1d 47 b3 25 9a 6d 8d fd 3d
> > 71 55 8e e4 ef 5f ea 9a 08 21 b1 be d0 20 55 2d 4a c7 a9
> >   key_iv - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > 00 00
> >   key_rsc - hexdump(len=8): 00 00 00 00 00 00 00 00
> >   key_id (reserved) - hexdump(len=8): 00 00 00 00 00 00 00 00
> >   key_mic - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > 00 00
> > WPA: RX EAPOL-Key - hexdump(len=121): 02 03 00 75 02 00 8a 00 10 00 00
> > 00 00 00 00 00 00 fd cc 9e 98 1d 47 b3 25 9a 6d 8d fd 3d 71 55 8e e4
> > ef 5f ea 9a 08 21 b1 be d0 20 55 2d 4a c7 a9 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 00 00 00 00 00 00 00 16 dd 14 00 0f
> > ac 04 b0 2a ff fe db bc a9 c5 e2 9d 88 ae d1 df 84 ba
> > State: DISCONNECTED -> 4WAY_HANDSHAKE
> > WPA: RX message 1 of 4-Way Handshake from 00:1d:7e:f4:d7:07 (ver=2)
> > RSN: msg 1/4 key data - hexdump(len=22): dd 14 00 0f ac 04 b0 2a ff fe
> > db bc a9 c5 e2 9d 88 ae d1 df 84 ba
> > RSN: PMKID from Authenticator - hexdump(len=16): b0 2a ff fe db bc a9
> > c5 e2 9d 88 ae d1 df 84 ba
> > RSN: no matching PMKID found
> > WPA: Renewed SNonce - hexdump(len=32): d8 f1 69 54 1a e7 9f 46 16 b2
> > b4 97 00 4b 1f 35 52 1d 9f 87 0a 49 fd df 46 70 4e d7 04 ec d9 bd
> > WPA: PMK - hexdump(len=32): [REMOVED]
> > WPA: PTK - hexdump(len=64): [REMOVED]
> > WPA: WPA IE for msg 2/4 - hexdump(len=22): 30 14 01 00 00 0f ac 02 01
> > 00 00 0f ac 04 01 00 00 0f ac 02 00 00
> > WPA: Sending EAPOL-Key 2/4
> > WPA: TX EAPOL-Key - hexdump(len=121): 01 03 00 75 02 01 0a 00 00 00 00
> > 00 00 00 00 00 00 d8 f1 69 54 1a e7 9f 46 16 b2 b4 97 00 4b 1f 35 52
> > 1d 9f 87 0a 49 fd df 46 70 4e d7 04 ec d9 bd 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 63 b4 56 74 f3 18 fc f5 14 f4 64 57 d3 4e 2e 84 00 16 30 14 01 00
> > 00 0f ac 02 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00
> > RTM_NEWLINK: operstate=0 ifi_flags=0x1003 ([UP])
> > Wireless event: cmd=0x8b15 len=20
> > Wireless event: new AP: 00:00:00:00:00:00
> > WPA: 4-Way Handshake failed - pre-shared key may be incorrect
> > Setting scan request: 0 sec 100000 usec
> > Added BSSID 00:00:00:00:00:00 into blacklist
> > CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
> > wpa_driver_wext_set_key: alg=0 key_idx=0 set_tx=0 seq_len=0 key_len=0
> > wpa_driver_wext_set_key: alg=0 key_idx=1 set_tx=0 seq_len=0 key_len=0
> > wpa_driver_wext_set_key: alg=0 key_idx=2 set_tx=0 seq_len=0 key_len=0
> > wpa_driver_wext_set_key: alg=0 key_idx=3 set_tx=0 seq_len=0 key_len=0
> > wpa_driver_wext_set_key: alg=0 key_idx=0 set_tx=0 seq_len=0 key_len=0
> > ioctl[SIOCSIWENCODEEXT]: No such file or directory
> > Driver did not support SIOCSIWENCODEEXT
> > State: 4WAY_HANDSHAKE -> DISCONNECTED
> >
> >
> /***********************************************end************************************************************/
> >
> >
> > Thanks
> > - Paresh
> > _______________________________________________
> > HostAP mailing list
> > HostAP at lists.shmoo.com
> > http://lists.shmoo.com/mailman/listinfo/hostap
>
>
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