NAME

wpa_cli —

text-based frontend program for interacting with wpa_supplicant

SYNOPSIS

wpa_cli [-p path_to_ctrl_sockets] [-i ifname] [-hvB] [-a action_file] [-P pid_file] [-g global_ctrl] [-G ping_interval] command ...

DESCRIPTION

The wpa_cli utility is a text-based frontend program for interacting with wpa_supplicant(8). It is used to query current status, change configuration, trigger events, and request interactive user input.

The wpa_cli utility can show the current authentication status, selected security mode, dot11 and dot1x MIBs, etc. In addition, wpa_cli can configure EAPOL state machine parameters and trigger events such as reassociation and IEEE 802.1X logoff/logon.

The wpa_cli utility provides an interface to supply authentication information such as username and password when it is not provided in the wpa_supplicant.conf(5) configuration file. This can be used, for example, to implement one-time passwords or generic token card authentication where the authentication is based on a challenge-response that uses an external device for generating the response.

The wpa_cli utility supports two modes: interactive and command line. Both modes share the same command set and the main difference is in interactive mode providing access to unsolicited messages (event messages, username/password requests).

Interactive mode is started when wpa_cli is executed without any parameters on the command line. Commands are then entered from the controlling terminal in response to the wpa_cli prompt. In command line mode, the same commands are entered as command line arguments.

The control interface of wpa_supplicant(8) can be configured to allow non-root user access by using the ctrl_interface_group parameter in the wpa_supplicant.conf(5) configuration file. This makes it possible to run wpa_cli with a normal user account.

AUTHENTICATION PARAMETERS

When wpa_supplicant(8) needs authentication parameters, such as username and password, that are not present in the configuration file, it sends a request message to all attached frontend programs, e.g., wpa_cli in interactive mode. The wpa_cli utility shows these requests with a “CTRL-REQ-⟨type⟩-⟨id⟩:⟨text⟩” prefix, where ⟨type⟩ is IDENTITY, PASSWORD, or OTP (One-Time Password), ⟨id⟩ is a unique identifier for the current network, ⟨text⟩ is a description of the request. In the case of an OTP (One-Time Password) request, it includes the challenge from the authentication server.

A user must supply wpa_supplicant(8) the needed parameters in response to these requests.

For example,

CTRL-REQ-PASSWORD-1:Password needed for SSID foobar
> password 1 mysecretpassword

Example request for generic token card challenge-response:

CTRL-REQ-OTP-2:Challenge 1235663 needed for SSID foobar
> otp 2 9876

OPTIONS

These options are available:

-p path: Control sockets path. This should match the ctrl_interface in wpa_supplicant.conf(5). The default path is /var/run/wpa_supplicant.
-i ifname: Interface to be configured. By default, the first interface found in the socket path is used.
-h: Show help.
-v: Show version information.
-B: Run the daemon in the background.
-a action_file: Run in daemon mode, executing the action file based on events from wpa_supplicant(8).
-P pid_file: PID file location.
-g global_ctrl: Use a global control interface to wpa_supplicant(8) rather than the default Unix domain sockets.
-G ping_interval: Wait “ping_interval” seconds before sending each ping to wpa_supplicant(8). See the ping command.
command: See available commands in the next section.

COMMANDS

These commands can be supplied on the command line or at a prompt when operating interactively.

status: Report the current WPA/EAPOL/EAP status for the current interface.
ifname: Show the current interface name. The default interface is the first interface found in the socket path.
ping: Ping the wpa_supplicant(8) utility. This command can be used to test the status of the wpa_supplicant(8) daemon.
mib: Report MIB variables (dot1x, dot11) for the current interface.
help: Show usage help.
interface [ifname]: Show available interfaces and/or set the current interface when multiple interfaces are available.
level debug_level: Change the debugging level in wpa_supplicant(8). Larger numbers generate more messages.
license: Display the full license for wpa_cli.
logoff: Send the IEEE 802.1X EAPOL state machine into the “logoff” state.
logon: Send the IEEE 802.1X EAPOL state machine into the “logon” state.
set [settings]: Set variables. When no arguments are supplied, the known variables and their settings are displayed.
pmksa: Show the contents of the PMKSA cache.
reassociate: Force a reassociation to the current access point.
reconfigure: Force wpa_supplicant(8) to re-read its configuration file.
preauthenticate BSSID: Force preauthentication of the specified BSSID.
identity network_id identity: Configure an identity for an SSID.
password network_id password: Configure a password for an SSID.
new_password network_id password: Change the password for an SSID.
PIN network_id pin: Configure a PIN for an SSID.
passphrase network_id passphrase: Configure a private key passphrase for an SSID.
bssid network_id bssid: Set a preferred BSSID for an SSID
blacklist [bssid | clear]: Add a BSSID to the blacklist. When invoked without any extra arguments, display the blacklist. Specifying clear causes wpa_cli to clear the blacklist.
list_networks: List configured networks.
select_network network_id: Select a network and disable others.
enable_network network_id: Enable a network.
disable_network network_id: Disable a network.
add_network: Add a network.
remove_network network_id: Remove a network.
set_network [network_id variable value]: Set network variables. Shows a list of variables when run without arguments.
get_network network_id variable: Get network variables.
disconnect: Disconnect and wait for reassociate/reconnect command before connecting.
reconnect: Similar to reassociate, but only takes effect if already disconnected.
scan: Request new BSS scan.
scan_results: Get the latest BSS scan results. This command can be invoked after running a BSS scan with scan.
bss [idx | bssid]: Get a detailed BSS scan result for the network identified by “bssid” or “idx”.
otp network_id password: Configure a one-time password for an SSID.
terminate: Force wpa_supplicant(8) to terminate.
interface_add ifname [confname driver ctrl_interface driver_param bridge_name]: Add a new interface with the given parameters.
interface_remove ifname: Remove the interface.
interface_list: List available interfaces.
quit: Exit wpa_cli.

HISTORY

The wpa_cli utility first appeared in FreeBSD 6.0.

AUTHORS

The wpa_cli utility was written by Jouni Malinen <j@w1.fi>. This manual page is derived from the README and wpa_cli.c files included in the wpa_supplicant distribution.