Roaming and 4-Way Handshake issues
Michael Voorhaen
michael.voorhaen
Wed Feb 4 01:56:25 PST 2009
Hi,
I sent this mail a couple of days ago, but haven't seen any replies
come by. Has anyone seen this problem? Can anyone help me out or point
me in the right direction?
Regards,
Michael
-------------------------
IBBT - PATS research group
Dept. of Mathematics and Computer Sciences
University of Antwerp
Campus Middelheim, G3.30
Middelheimlaan 1
B-2020 Antwerpen, Belgium
Phone: +32 (0)3 265.32.91
Fax: +32 (0)3 265.37.77
Web: www.pats.ua.ac.be/michael.voorhaen
On 26 Jan 2009, at 15:19, Michael Voorhaen wrote:
> Hi,
>
> I'm experimenting with a node roaming between APs and have set up the
> following test:
>
> Two APs and one host. I force the host to move from one AP to another
> by having the host connected to one AP, then starting hostap on the
> second AP and then stopping hostap on the first. The idea being that
> the host would each time fall back to the other remaining AP.
>
> Settings for security are:
>
> wpa=1
> wpa_passphrase=settosomething
> wpa_key_mgmt=WPA-PSK
> wpa_pairwise=TKIP CCMP
>
> I've tested hostapd 0.5.5 (default on voyage-linux-0.5.2) and tested
> 0.5.11 and 0.6.7 on the same distro and all have the same behaviour. I
> haven't tested this on the most recent voyage-linux yet as there I am
> experiencing troubles with the madwifi driver in AP mode.
>
> The setup works fine most of the time, however sometimes the host
> fails to move to the other AP because it can not authenticate. The
> host in this example is a Macbook Pro. I've tested this over and over
> again with my iPhone and there the problem does not occur. There is a
> difference in the output though, the following output occurs for the
> iPhone and not for the MBP:
>
> ath0: STA 00:21:e9:2d:64:7d RADIUS: starting accounting session
> 44209244-00000000
>
> This is the output of hostap for when it fails for my MBP:
>
> voyage:~# ./hostapd -d /etc/hostapd/hostapd.conf
> Configuration file: /etc/hostapd/hostapd.conf
> Line 44: DEPRECATED: 'debug' configuration variable is not used
> anymore
> ctrl_interface_group=0
> madwifi_set_iface_flags: dev_up=0
> madwifi_set_privacy: enabled=0
> BSS count 1, BSSID mask ff:ff:ff:ff:ff:ff (0 bits)
> SIOCGIWRANGE: WE(compiled)=22 WE(source)=13 enc_capa=0xf
> ath0: IEEE 802.11 Fetching hardware channel/rate support not
> supported.
> Flushing old station entries
> madwifi_sta_deauth: addr=ff:ff:ff:ff:ff:ff reason_code=3
> ioctl[IEEE80211_IOCTL_SETMLME]: Invalid argument
> madwifi_sta_deauth: Failed to deauth STA (addr ff:ff:ff:ff:ff:ff
> reason 3)
> Could not connect to kernel driver.
> Deauthenticate all stations
> madwifi_sta_deauth: addr=ff:ff:ff:ff:ff:ff reason_code=2
> ioctl[IEEE80211_IOCTL_SETMLME]: Invalid argument
> madwifi_sta_deauth: Failed to deauth STA (addr ff:ff:ff:ff:ff:ff
> reason 2)
> madwifi_set_privacy: enabled=0
> Mode: IEEE 802.11g Channel: 1 Frequency: 0 MHz
> madwifi_del_key: addr=00:00:00:00:00:00 key_idx=0
> madwifi_del_key: addr=00:00:00:00:00:00 key_idx=1
> madwifi_del_key: addr=00:00:00:00:00:00 key_idx=2
> madwifi_del_key: addr=00:00:00:00:00:00 key_idx=3
> Using interface ath0 with hwaddr 00:80:48:53:00:3b and ssid 'roaming'
> SSID - hexdump_ascii(len=7):
> 72 6f 61 6d 69 6e 67 roaming
> PSK (ASCII passphrase) - hexdump_ascii(len=8):
> 62 6f 6e 65 77 69 73 68 bonewish
> PSK (from passphrase) - hexdump(len=32): 53 f2 9f f8 ab ab a0 53 74 9b
> dd 39 fb 59 0c 0b 83 f3 fe b9 8c f8 22 c7 7b 72 32 2f ae 7d 9b 37
> madwifi_set_ieee8021x: enabled=1
> madwifi_configure_wpa: group key cipher=1
> madwifi_configure_wpa: pairwise key ciphers=0xa
> madwifi_configure_wpa: key management algorithms=0x2
> madwifi_configure_wpa: rsn capabilities=0x0
> madwifi_configure_wpa: enable WPA=0x1
> WPA: group state machine entering state GTK_INIT (VLAN-ID 0)
> GMK - hexdump(len=32): [REMOVED]
> GTK - hexdump(len=32): [REMOVED]
> WPA: group state machine entering state SETKEYSDONE (VLAN-ID 0)
> madwifi_set_key: alg=TKIP addr=00:00:00:00:00:00 key_idx=1
> madwifi_set_privacy: enabled=1
> madwifi_set_iface_flags: dev_up=1
> ath0: Setup of interface done.
> l2_packet_receive - recvfrom: Network is down
> ath0: STA 00:1e:c2:bc:f4:a5 IEEE 802.11: associated
> New STA
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: event 1 notification
> madwifi_del_key: addr=00:1e:c2:bc:f4:a5 key_idx=0
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: start authentication
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state INITIALIZE
> madwifi_del_key: addr=00:1e:c2:bc:f4:a5 key_idx=0
> madwifi_set_sta_authorized: addr=00:1e:c2:bc:f4:a5 authorized=0
> ath0: STA 00:1e:c2:bc:f4:a5 IEEE 802.1X: unauthorizing port
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK_GROUP entering state IDLE
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state AUTHENTICATION
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state AUTHENTICATION2
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state INITPSK
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state PTKSTART
> ath0: STA 00:1e:c2:bc:f4:a5 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 keyidx=0 encr=0)
> IEEE 802.1X: 123 bytes from 00:1e:c2:bc:f4:a5
> IEEE 802.1X: version=1 type=3 length=119
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: received EAPOL-Key frame (2/4
> Pairwise)
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state PTKCALCNEGOTIATING
> WPA: PTK derivation - A1=00:80:48:53:00:3b A2=00:1e:c2:bc:f4:a5
> WPA: PMK - hexdump(len=32): [REMOVED]
> WPA: PTK - hexdump(len=64): [REMOVED]
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: invalid MIC in msg 2/4 of 4-Way
> Handshake
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: EAPOL-Key timeout
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state PTKSTART
> ath0: STA 00:1e:c2:bc:f4:a5 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 keyidx=0 encr=0)
> IEEE 802.1X: 123 bytes from 00:1e:c2:bc:f4:a5
> IEEE 802.1X: version=1 type=3 length=119
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: received EAPOL-Key frame (2/4
> Pairwise)
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state PTKCALCNEGOTIATING
> WPA: PTK derivation - A1=00:80:48:53:00:3b A2=00:1e:c2:bc:f4:a5
> WPA: PMK - hexdump(len=32): [REMOVED]
> WPA: PTK - hexdump(len=64): [REMOVED]
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: invalid MIC in msg 2/4 of 4-Way
> Handshake
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: EAPOL-Key timeout
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state PTKSTART
> ath0: STA 00:1e:c2:bc:f4:a5 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 keyidx=0 encr=0)
> IEEE 802.1X: 123 bytes from 00:1e:c2:bc:f4:a5
> IEEE 802.1X: version=1 type=3 length=119
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: received EAPOL-Key frame (2/4
> Pairwise)
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state PTKCALCNEGOTIATING
> WPA: PTK derivation - A1=00:80:48:53:00:3b A2=00:1e:c2:bc:f4:a5
> WPA: PMK - hexdump(len=32): [REMOVED]
> WPA: PTK - hexdump(len=64): [REMOVED]
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: invalid MIC in msg 2/4 of 4-Way
> Handshake
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: EAPOL-Key timeout
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state PTKSTART
> ath0: STA 00:1e:c2:bc:f4:a5 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 keyidx=0 encr=0)
> Custom wireless event: 'STA-TRAFFIC-STAT
> mac=00:1e:c2:bc:f4:a5
> rx_packets=3
> rx_bytes=411
> tx_packets=4
> tx_bytes=428
> '
> ath0: STA 00:1e:c2:bc:f4:a5 IEEE 802.11: disassociated
> ath0: STA 00:1e:c2:bc:f4:a5 WPA: event 2 notification
> madwifi_del_key: addr=00:1e:c2:bc:f4:a5 key_idx=0
> ioctl[IEEE80211_IOCTL_DELKEY]: Invalid argument
> madwifi_del_key: Failed to delete key (addr 00:1e:c2:bc:f4:a5
> key_idx 0)
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state DISCONNECTED
> WPA: 00:1e:c2:bc:f4:a5 WPA_PTK entering state INITIALIZE
> madwifi_del_key: addr=00:1e:c2:bc:f4:a5 key_idx=0
> ioctl[IEEE80211_IOCTL_DELKEY]: Invalid argument
> madwifi_del_key: Failed to delete key (addr 00:1e:c2:bc:f4:a5
> key_idx 0)
> madwifi_set_sta_authorized: addr=00:1e:c2:bc:f4:a5 authorized=0
> ioctl[IEEE80211_IOCTL_SETMLME]: Invalid argument
> madwifi_set_sta_authorized: Failed to unauthorize STA
> 00:1e:c2:bc:f4:a5
> ath0: STA 00:1e:c2:bc:f4:a5 IEEE 802.1X: unauthorizing port
> Could not set station 00:1e:c2:bc:f4:a5 flags for kernel driver
> (errno=29).
>
>
> Regards,
> Michael
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