wpa/wpa_cli/wpa_cli.8

.\" Copyright (c) 2005 Sam Leffler <sam@errno.com>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.Dd January 24, 2017
.Dt WPA_CLI 8
.Os
.Sh NAME
.Nm wpa_cli
.Nd "text-based frontend program for interacting with wpa_supplicant"
.Sh SYNOPSIS
.Nm wpa_cli
.Op Fl p Ar path_to_ctrl_sockets
.Op Fl i Ar ifname
.Op Fl hvB
.Op Fl a Ar action_file
.Op Fl P Ar pid_file
.Op Fl g Ar global_ctrl
.Op Fl G Ar ping_interval
.Ar command ...
.Sh DESCRIPTION
The
.Nm
utility
is a text-based frontend program for interacting with
.Xr wpa_supplicant 8 .
It is used to query current status,
change configuration,
trigger events,
and
request interactive user input.
.Pp
The
.Nm
utility
can show the
current authentication status,
selected security
mode, dot11 and dot1x MIBs, etc.
In addition,
.Nm
can configure EAPOL state machine
parameters and trigger events such as reassociation
and IEEE 802.1X logoff/logon.
.Pp
The
.Nm
utility
provides an interface to supply authentication information
such as username and password when it is not provided in the
.Xr 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.
.Pp
The
.Nm
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).
.Pp
Interactive mode is started when
.Nm
is executed without any parameters on the command line.
Commands are then entered from the controlling terminal in
response to the
.Nm
prompt.
In command line mode, the same commands are
entered as command line arguments.
.Pp
The control interface of
.Xr wpa_supplicant 8
can be configured to allow
non-root user access by using the
.Va ctrl_interface_group
parameter
in the
.Xr wpa_supplicant.conf 5
configuration file.
This makes it possible to run
.Nm
with a normal user account.
.Sh AUTHENTICATION PARAMETERS
When
.Xr 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.,
.Nm
in interactive mode.
The
.Nm
utility
shows these requests with a
.Dq Li CTRL-REQ- Ns Ao Ar type Ac Ns Li - Ns Ao Ar id Ac Ns : Ns Aq Ar text
prefix, where
.Aq Ar type
is
.Li IDENTITY , PASSWORD ,
or
.Li OTP
(One-Time Password),
.Aq Ar id
is a unique identifier for the current network,
.Aq Ar text
is a description of the request.
In the case of an
.Li OTP
(One-Time Password) request,
it includes the challenge from the authentication server.
.Pp
A user must supply
.Xr wpa_supplicant 8
the needed parameters in response to these requests.
.Pp
For example,
.Bd -literal -offset indent
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
.Ed
.Sh OPTIONS
These options are available:
.Bl -tag -width indent
.It Fl p Ar path
Control sockets path.
This should match the
.Ic ctrl_interface
in
.Xr wpa_supplicant.conf 5 .
The default path is
.Pa /var/run/wpa_supplicant .
.It Fl i Ar ifname
Interface to be configured.
By default, the first interface found in the socket path is used.
.It Fl h
Show help.
.It Fl v
Show version information.
.It Fl B
Run the daemon in the background.
.It Fl a Ar action_file
Run in daemon mode, executing the action file based on events from
.Xr wpa_supplicant 8 .
.It Fl P Ar pid_file
PID file location.
.It Fl g Ar global_ctrl
Use a global control interface to
.Xr wpa_supplicant 8
rather than the default Unix domain sockets.
.It Fl G Ar ping_interval
Wait
.Dq ping_interval
seconds before sending each ping to
.Xr wpa_supplicant 8 .
See the
.Ic ping
command.
.It command
See available commands in the next section.
.El
.Sh COMMANDS
These commands can be supplied on the command line
or at a prompt when operating interactively.
.Bl -tag -width indent
.It Ic status
Report the current WPA/EAPOL/EAP status for the current interface.
.It Ic ifname
Show the current interface name.
The default interface is the first interface found in the socket path.
.It Ic ping
Ping the
.Xr wpa_supplicant 8
utility.
This command can be used to test the status of the
.Xr wpa_supplicant 8
daemon.
.It Ic mib
Report MIB variables (dot1x, dot11) for the current interface.
.It Ic help
Show usage help.
.It Ic interface Op Ar ifname
Show available interfaces and/or set the current interface
when multiple interfaces are available.
.It Ic level Ar debug_level
Change the debugging level in
.Xr wpa_supplicant 8 .
Larger numbers generate more messages.
.It Ic license
Display the full license for
.Nm .
.It Ic logoff
Send the IEEE 802.1X EAPOL state machine into the
.Dq logoff
state.
.It Ic logon
Send the IEEE 802.1X EAPOL state machine into the
.Dq logon
state.
.It Ic set Op Ar settings
Set variables.
When no arguments are supplied, the known variables and their settings
are displayed.
.It Ic pmksa
Show the contents of the PMKSA cache.
.It Ic reassociate
Force a reassociation to the current access point.
.It Ic reconfigure
Force
.Xr wpa_supplicant 8
to re-read its configuration file.
.It Ic preauthenticate Ar BSSID
Force preauthentication of the specified
.Ar BSSID .
.It Ic identity Ar network_id identity
Configure an identity for an SSID.
.It Ic password Ar network_id password
Configure a password for an SSID.
.It Ic new_password Ar network_id password
Change the password for an SSID.
.It Ic PIN Ar network_id pin
Configure a PIN for an SSID.
.It Ic passphrase Ar network_id passphrase
Configure a private key passphrase for an SSID.
.It Ic bssid Ar network_id bssid
Set a preferred BSSID for an SSID
.It Ic blacklist Op Ar bssid | clear
Add a BSSID to the blacklist.
When invoked without any extra arguments, display the blacklist.
Specifying
.Ar clear
causes
.Nm
to clear the blacklist.
.It Ic list_networks
List configured networks.
.It Ic select_network Ar network_id
Select a network and disable others.
.It Ic enable_network Ar network_id
Enable a network.
.It Ic disable_network Ar network_id
Disable a network.
.It Ic add_network
Add a network.
.It Ic remove_network Ar network_id
Remove a network.
.It Ic set_network Op Ar network_id variable value
Set network variables.
Shows a list of variables when run without arguments.
.It Ic get_network Ar network_id variable
Get network variables.
.It Ic disconnect
Disconnect and wait for reassociate/reconnect command before connecting.
.It Ic reconnect
Similar to
.Ic reassociate ,
but only takes effect if already disconnected.
.It Ic scan
Request new BSS scan.
.It Ic scan_results
Get the latest BSS scan results.
This command can be invoked after running a BSS scan with
.Ic scan .
.It Ic bss Op Ar idx | bssid
Get a detailed BSS scan result for the network identified by
.Dq bssid
or
.Dq idx .
.It Ic otp Ar network_id password
Configure a one-time password for an SSID.
.It Ic terminate
Force
.Xr wpa_supplicant 8
to terminate.
.It Ic interface_add Ar ifname Op Ar confname driver ctrl_interface driver_param bridge_name
Add a new interface with the given parameters.
.It Ic interface_remove Ar ifname
Remove the interface.
.It Ic interface_list
List available interfaces.
.It Ic quit
Exit
.Nm .
.El
.Sh SEE ALSO
.Xr wpa_supplicant.conf 5 ,
.Xr wpa_supplicant 8
.Sh HISTORY
The
.Nm
utility first appeared in
.Fx 6.0 .
.Sh AUTHORS
The
.Nm
utility was written by
.An Jouni Malinen Aq Mt j@w1.fi .
This manual page is derived from the
.Pa README
and
.Pa wpa_cli.c
files included in the
.Nm wpa_supplicant
distribution.