freebsd-dev/usr.sbin/wpa/wpa_cli/wpa_cli.8

.\" Copyright (c) 2005 Sam Leffler <sam@errno.com>
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.Dd June 16, 2005
.Dt WPA_CLI 8
.Os
.Sh NAME
.Nm wpa_cli
.Nd "text-based frontend program for interacting with wpa_supplicant"
.Sh SYNOPSIS
.Nm
.Op Ar commands
.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 Li : 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 COMMANDS
The following commands may 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 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 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 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 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 jkmaline@cc.hut.fi .
This manual page is derived from the
.Pa README
file included in the
.Nm wpa_supplicant
distribution.