WPA in adhoc mode

[Johann Hugo]

I'm trying to setup WPA between two Atheros wifi adapters in adhoc mode, but I 
cannot get it to work. Any hints to get it to work ?

According to the "wpa_supplicant Reference Manual 0.4.x" it should be 
possible:
---------------------------------------------
IEEE 802.11 operation mode (Infrastucture/IBSS).
0 = infrastructure (Managed) mode, i.e., associate with an AP.
1 = IBSS (ad-hoc, peer-to-peer)
Note: IBSS can only be used with key_mgmt NONE (plaintext and static WEP) and 
key_mgmt=WPA-NONE (fixed group key TKIP/CCMP). In addition, ap_scan has to be 
set to 2 for IBSS. WPA-None requires following network block options: 
proto=WPA, key_mgmt=WPA-NONE, pairwise=NONE, group=TKIP
(or CCMP, but not both), and psk must also be set (either directly or using 
ASCII passphrase).
--------------------------------------------

I'm running 7.0-STABLE, build on 30 Jul 2008.
hw.ath.hal.version: 0.9.20.3

ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 00:80:48:50:9d:dd
        inet6 fe80::280:48ff:fe50:9ddd%ath0 prefixlen 64 scopeid 0x1
        inet6 fd9c:6829:597c:20:280:48ff:fe50:9ddd prefixlen 64
        inet6 fd9c:6829:597c:20:: prefixlen 64 anycast
        media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <adhoc>
        status: associated
        ssid ptamesh channel 13 (2472 Mhz 11g) bssid 02:15:6d:53:39:75
        authmode OPEN privacy OFF txpower 31.5 scanvalid 60 bgscan
        bgscanintvl 300 bgscanidle 250 roam:rssi11g 7 roam:rate11g 5
        protmode CTS burst

mesh-9ddd:~ # more /etc/wpa_supplicant.conf
ap_scan=2

network={
  ssid="ptamesh"
  mode=1
  proto=WPA
  key_mgmt=WPA-NONE
  pairwise=NONE
  group=TKIP
  psk="mesh-ipv6"
}

mesh-9ddd:~ # wpa_supplicant -d -i ath0 -c /etc/wpa_supplicant.conf
Initializing interface 'ath0' conf '/etc/wpa_supplicant.conf' driver 'default' 
ctrl_interface 'N/A' bridge 'N/A'
Configuration file '/etc/wpa_supplicant.conf' -> '/etc/wpa_supplicant.conf'
Reading configuration file '/etc/wpa_supplicant.conf'
ap_scan=2
Priority group 0
   id=0 ssid='ptamesh'
Initializing interface (2) 'ath0'
EAPOL: SUPP_PAE entering state DISCONNECTED
EAPOL: KEY_RX entering state NO_KEY_RECEIVE
EAPOL: SUPP_BE entering state INITIALIZE
EAP: EAP entering state DISABLED
EAPOL: External notification - portEnabled=0
EAPOL: External notification - portValid=0
Own MAC address: 00:80:48:50:9d:dd
wpa_driver_bsd_set_wpa: enabled=1
wpa_driver_bsd_set_wpa_internal: wpa=3 privacy=1
wpa_driver_bsd_del_key: keyidx=0
wpa_driver_bsd_del_key: keyidx=1
wpa_driver_bsd_del_key: keyidx=2
wpa_driver_bsd_del_key: keyidx=3
wpa_driver_bsd_set_countermeasures: enabled=0
wpa_driver_bsd_set_drop_unencrypted: enabled=1
Setting scan request: 0 sec 100000 usec
Added interface ath0
State: DISCONNECTED -> SCANNING
Trying to associate with SSID 'ptamesh'
Cancelling scan request
WPA: clearing own WPA/RSN IE
Automatic auth_alg selection: 0x1
wpa_driver_bsd_set_auth_alg alg 0x1 authmode 1
WPA: No WPA/RSN IE available from association info
WPA: Set cipher suites based on configuration
WPA: Selected cipher suites: group 8 pairwise 1 key_mgmt 16 proto 1
WPA: clearing AP WPA IE
WPA: clearing AP RSN IE
WPA: using GTK TKIP
WPA: using PTK NONE
WPA: using KEY_MGMT WPA-NONE
WPA: Set own WPA IE default - hexdump(len=24): dd 16 00 50 f2 01 01 00 00 50 
f2 02 01 00 00 50 f2 00 01 00 00 50 f2 00
No keys have been configured - skip key clearing
wpa_driver_bsd_set_key: alg=TKIP addr=ff:ff:ff:ff:ff:ff key_idx=0 set_tx=1 
seq_len=6 key_len=32
wpa_driver_bsd_set_drop_unencrypted: enabled=1
State: SCANNING -> ASSOCIATING
wpa_driver_bsd_associate: ssid 'ptamesh' wpa ie len 24 pairwise 0 group 2 key 
mgmt 4
ioctl[SIOCS80211, op 22, len 24]: Invalid argument
Association request to the driver failed
wpa_driver_bsd_set_key: alg=TKIP addr=ff:ff:ff:ff:ff:ff key_idx=0 set_tx=1 
seq_len=6 key_len=32
Cancelling authentication timeout
State: ASSOCIATING -> COMPLETED
CTRL-EVENT-CONNECTED - Connection to 00:00:00:00:00:00 completed (auth) [id=-1 
id_str=]
EAPOL: External notification - portControl=ForceAuthorized