wpa_supplicant wifi-direct connection between Linux and Android
It needs not only wpa_supplicant but also iwpriv, hostapd, dhcpd.
here is what I did for wifi-direct connect.
Device Mode ( Linux requests connection to Android)
ifconfig wlan0 192.168.1.15 up
iwpriv wlan0 p2p_set enable=0
iwpriv wlan0 p2p_get status
iwpriv wlan0 p2p_get role
iwpriv wlan0 p2p_set enable=1
iwpriv wlan0 p2p_set intent=1
iwpriv wlan0 p2p_get status
iwpriv wlan0 p2p_set op_ch=6
iwpriv wlan0 p2p_set ssid=DIRECT-RT
iwpriv wlan0 p2p_set setDN="RTL8192CU"
iwlist wlan0 scan
iwpriv wlan0 p2p_get2 wpsCM=<MAC_ADDRESS_OF_TARGET_DEVICE>
iwpriv wlan0 p2p_get2 devN=<MAC_ADDRESS_OF_TARGET_DEVICE>
iwpriv wlan0 p2p_set prov_disc=<MAC_ADDRESS_OF_TARGET_DEVICE>
iwpriv wlan0 p2p_set got_wpsinfo=3
iwpriv wlan0 p2p_set nego=<MAC_ADDRESS_OF_TARGET_DEVICE>
wpa_supplicant -i wlan0 -c ./wpa_0_8.conf -B
wpa_cli wps_pbc <MAC_ADDRESS_OF_TARGET_DEVICE>
GO Mode ( Android requests connection to Linux)
iwpriv wlan0 p2p_set enable=3
iwpriv wlan0 p2p_get status
iwpriv wlan0 p2p_get role
iwpriv wlan0 p2p_set intent=1
iwpriv wlan0 p2p_set op_ch=6
iwpriv wlan0 p2p_set ssid=DIRECT-RT
./hostapd -B ./p2p_hostapd.conf
<<<<< Request connection from Android >>>>
iwpriv wlan0 p2p_get peer_deva
iwpriv wlan0 p2p_get req_cm
iwpriv wlan0 p2p_set got_wpsinfo=3
iwpriv wlan0 p2p_get peer_ifa
./hostapd_cli wps_pbc any
ifconfig wlan0 192.168.1.254
dhcpd
But there's some necessary conditions for wifi-direct connection.
- Your wireless driver should support nl80211.
- Configure 'nl80211' option when MAKE wpa_supplicant, hostapd.
- dhcpd configuration files.(dhcpd.conf, dhcpd.lease)
- wpa_supplicant, hostapd configurations( conf files )
I hope this article may be useful for who wants wifi-direct between Linux and Android.
Related videos on Youtube
GTKoo
Updated on September 18, 2022Comments
-
GTKoo over 1 year
I'm trying to make wifi-direct connection between Android and Linux. I'm using rtl8188au.
I found some tips about wifi direct by using wpa_supplicant, so I get wpa_supplicant v2.0. and this is what I did for wifi-direct.
1.Compiled rtl8288au driver, activated nl80211. 2.Compiled wpa_supplicant and wpa_cli for nl80211. 3.Run wpa_supplicant on linux, with option -Dnl80211. success. 4.Set ip address for wlan0. 5.Run wpa_cli, and try to connect to android device.
The connection can made success at once, but disconnected soon.
Here is wpa_cli logs.
wpa_cli -p /var/run/wpa_supplicant
> p2p_find OK <3>P2P-DEVICE-FOUND e6:fa:ed:8a:5e:e8 p2p_dev_addr=e6:fa:ed:8a:5e:e8 pri_dev_type=10-0050F204-5 name='[Phone] Kulong' config_methods=0x188 dev_capab=0x25 group_capab=0x0 > > > p2p_connect e6:fa:ed:8a:5e:e8 pbc OK <3>P2P-FIND-STOPPED <3>P2P-DEVICE-FOUND e6:fa:ed:8a:5e:e8 p2p_dev_addr=e6:fa:ed:8a:5e:e8 pri_dev_type=10-0050F204-5 name='[Phone] Kulong' config_methods=0x80 dev_capab=0x25 group_capab=0x8 <3>P2P-GO-NEG-SUCCESS <3>CTRL-EVENT-STATE-CHANGE id=-1 state=3 BSSID=00:00:00:00:00:00 SSID= <3>CTRL-EVENT-CONNECTED - Connection to 38:1d:d9:d4:db:70 completed (auth) [id=0 id_str=] <3>CTRL-EVENT-STATE-CHANGE id=0 state=9 BSSID=38:1d:d9:d4:db:70 SSID=DIRECT-4J <3>CTRL-EVENT-EAP-STARTED e6:fa:ed:8a:de:e8 <3>CTRL-EVENT-EAP-PROPOSED-METHOD vendor=0 method=1 <3>CTRL-EVENT-EAP-PROPOSED-METHOD vendor=14122 method=254 <3>WPS-REG-SUCCESS e6:fa:ed:8a:de:e8 2d96823c-8a30-5dd0-a267-e3adae8b1564 <3>P2P-GROUP-FORMATION-SUCCESS <3>P2P-GROUP-STARTED wlan0 GO ssid="DIRECT-4J" freq=2412 passphrase="xZbKV6sF" go_dev_addr=38:1d:d9:d4:db:70 <3>WPS-SUCCESS <3>CTRL-EVENT-EAP-FAILURE e6:fa:ed:8a:de:e8 <3>AP-STA-CONNECTED e6:fa:ed:8a:de:e8 p2p_dev_addr=e6:fa:ed:8a:5e:e8 <3>AP-STA-DISCONNECTED e6:fa:ed:8a:de:e8 p2p_dev_addr=e6:fa:ed:8a:5e:e8 <3>P2P-DEVICE-LOST p2p_dev_addr=e6:fa:ed:8a:5e:e8
Is there anything wrong?
If so, what should I do for complete wifi-direct connection?