wpa_cli_with_wpa_supplicant_20091227

This document had described the way to inform the wpa_supplicant to do the WiFi connection by using the wpa_cli. The wpa_supplicant had supported all kinds of security connections and WPS defined in the 802.11 specification. So, we suggest use the wpa_supplicant to do the WiFi connection rather than the iwconfig wireless tool. (A) WPA_SUPPLICANT + WPA_CLI User Guide 1.start wpa_supplicant in the background wpa_supplicant -Dwext -iwlan0 -c /tmp/net/wpa.conf -B 2.Scaning AP and See Results wpa_cli -p/var/run/wpa_supplicant scan wpa_cli -p/var/run/wpa_supplicant scan_results 3.Connect to AP a.OPEN wpa_cli -p/var/run/wpa_supplicant remove_network 0 wpa_cli -p/var/run/wpa_supplicant ap_scan 1 wpa_cli -p/var/run/wpa_supplicant add_network wpa_cli -p/var/run/wpa_supplicant set_network 0 ssid '"dlink"' wpa_cli -p/var/run/wpa_supplicant set_network 0 key_mgmt NONE wpa_cli -p/var/run/wpa_supplicant select_network 0 b.WEP40 wpa_cli -p/var/run/wpa_supplicant remove_network 0 wpa_cli -p/var/run/wpa_supplicant ap_scan 1 wpa_cli -p/var/run/wpa_supplicant add_network wpa_cli -p/var/run/wpa_supplicant set_network 0 ssid '"dlink"' wpa_cli -p/var/run/wpa_supplicant set_network 0 key_mgmt NONE wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_key0 1234567890 wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_tx_keyidx 0 wpa_cli -p/var/run/wpa_supplicant select_network 0 c.WEP104 wpa_cli -p/var/run/wpa_supplicant remove_network 0 wpa_cli -p/var/run/wpa_supplicant ap_scan 1 wpa_cli -p/var/run/wpa_supplicant add_network wpa_cli -p/var/run/wpa_supplicant set_network 0 ssid '"dlink"' wpa_cli -p/var/run/wpa_supplicant set_network 0 key_mgmt NONE wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_key0 12345678901234567890123456 wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_tx_keyidx 0 wpa_cli -p/var/run/wpa_supplicant select_network 0 #If wep key is ASCII type,use the following cmd: #WEP40: wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_key0 '"12345"' #WEP104: wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_key0 '"1234567890123"' #WEP key index is X from 0 to 3, change X for other key index and select it. #wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_keyX 12345678901234567890123456 #wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_tx_keyidx X d.TKIP and AES wpa_cli -p/var/run/wpa_supplicant remove_network 0 wpa_cli -p/var/run/wpa_supplicant ap_scan 1 wpa_cli -p/var/run/wpa_supplicant add_network wpa_cli -p/var/run/wpa_supplicant set_network 0 ssid '"dlink"' wpa_cli -p/var/run/wpa_supplicant set_network 0 psk '"12345678"' wpa_cli -p/var/run/wpa_supplicant select_network 0 4.Ad-hoc mode a.OPEN wpa_cli -p/var/run/wpa_supplicant scan wpa_cli -p/var/run/wpa_supplicant scan_results wpa_cli -p/var/run/wpa_supplicant remove_network 0 wpa_cli -p/var/run/wpa_supplicant ap_scan 2 wpa_cli -p/var/run/wpa_supplicant add_network wpa_cli -p/var/run/wpa_supplicant set_network 0 ssid '"Adhoc_test"' wpa_cli -p/var/run/wpa_supplicant set_network 0 mode 1 wpa_cli -p/var/run/wpa_supplicant set_network 0 key_mgmt NONE wpa_cli -p/var/run/wpa_supplicant select_network 0 b.WEP40 wpa_cli -p/var/run/wpa_supplicant scan wpa_cli -p/var/run/wpa_supplicant scan_results wpa_cli -p/var/run/wpa_supplicant remove_network 0 wpa_cli -p/var/run/wpa_supplicant ap_scan 2 wpa_cli -p/var/run/wpa_supplicant add_network wpa_cli -p/var/run/wpa_supplicant set_network 0 ssid '"Adhoc_test"' wpa_cli -p/var/run/wpa_supplicant set_network 0 mode 1 wpa_cli -p/var/run/wpa_supplicant set_network 0 key_mgmt NONE wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_key0 1234567890 wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_tx_keyidx 0 wpa_cli -p/var/run/wpa_supplicant select_network 0 c.WEP104 wpa_cli -p/var/run/wpa_supplicant scan wpa_cli -p/var/run/wpa_supplicant scan_results wpa_cli -p/var/run/wpa_supplicant remove_network 0 wpa_cli -p/var/run/wpa_supplicant ap_scan 2 wpa_cli -p/var/run/wpa_supplicant add_network wpa_cli -p/var/run/wpa_supplicant set_network 0 ssid '"Adhoc_test"' wpa_cli -p/var/run/wpa_supplicant set_network 0 mode 1 wpa_cli -p/var/run/wpa_supplicant set_network 0 key_mgmt NONE wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_key0 12345678901234567890123456 wpa_cli -p/var/run/wpa_supplicant set_network 0 wep_tx_keyidx 0 wpa_cli -p/var/run/wpa_supplicant select_network 0 5.Save the Current Connection AP configuration file wpa_cli -p/var/run/wpa_supplicant save_config 6.WPS Connection Push Button: wpa_cli -p/var/run/wpa_supplicant remove_network 0 wpa_cli -p/var/run/wpa_supplicant wps_pbc any Pin Code: wpa_cli -p/var/run/wpa_supplicant remove_network 0 wpa_cli -p/var/run/wpa_supplicant wps_pin any 12345670 or wpa_cli -p/var/run/wpa_supplicant remove_network 0 wpa_cli -p/var/run/wpa_supplicant wps_pin any 7.Get Current Status of wpa_supplicant wpa_cli -p/var/run/wpa_supplicant status 8.Disable current network connection wpa_cli -p/var/run/wpa_supplicant disable_network 0 (B) WPA_SUPPLICANT + WPA_CLI - Control interface commands Following commands can be used with wpa_cli PING This command can be used to test whether wpa_supplicant is replying to the control interface commands. The expected reply is PONG if the connection is open and wpa_supplicant is processing commands. STATUS Request current status information. The output is a text block with each line in variable=value format. For example: bssid=02:00:01:02:03:04 ssid=test network pairwise_cipher=CCMP group_cipher=CCMP key_mgmt=WPA-PSK wpa_state=COMPLETED LIST_NETWORKS List configured networks. network id / ssid / bssid / flags 0 example network any [CURRENT] (note: fields are separated with tabs) SCAN Request a new BSS scan. SCAN_RESULTS Get the latest scan results. bssid / frequency / signal level / flags / ssid 00:09:5b:95:e0:4e 2412 208 [WPA-PSK-CCMP] jkm private 02:55:24:33:77:a3 2462 187 [WPA-PSK-TKIP] testing 00:09:5b:95:e0:4f 2412 209 jkm guest (note: fields are separated with tabs) ADD_NETWORK Add a new network. This command creates a new network with empty configuration. The new network is disabled and once it has been configured it can be enabled with ENABLE_NETWORK command. ADD_- NETWORK returns the network id of the new network or FAIL on failure SELECT_NETWORK Select a network (disable others). Network id can be received from the LIST_NETWORKS command output. ENABLE_NETWORK Enable a network. Network id can be received from the LIST_NETWORKS command output. DISABLE_NETWORK Disable a network. Network id can be received from the LIST_NETWORKS command output. Special network id all can be used to disable all network. . REMOVE_NETWORK Remove a network. Network id can be received from the LIST_NETWORKS command output. Special network id all can be used to remove all network. SET_NETWORK Set network variables. Network id can be received from the LIST_NETWORKS command output. This command uses the same variables and data formats as the configuration file. • ssid (network name, SSID) • psk (WPA passphrase or pre-shared key) • key_mgmt (key management protocol, NONE, WPA-PSK, WPA-EAP) • proto ( WPA WPA2) • pairwise ( CCMP TKIP) • group ( CCMP TKIP WEP40 WEP104) • wep_key0 ( set wep key for key index 0) • wep_tx_keyidx ( select wep key index) GET_NETWORK Get network variables. Network id can be received from the LIST_NETWORKS command output. SAVE_CONFIG Save the current configuration. AP_SCAN Change ap_scan value: 0 = no scanning, 1 = wpa_supplicant requests scans and uses scan results to select the AP, 2 = wpa_supplicant does not use scanning and just requests driver to associate and take care of AP selection