90 lines
2.7 KiB
Groff
90 lines
2.7 KiB
Groff
.\" Copyright (c) 2001 Mark R V Murray
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd July 8, 2001
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.Dt PAM_SECURETTY 8
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.Os
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.Sh NAME
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.Nm pam_securetty
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.Nd SecureTTY PAM module
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.Sh SYNOPSIS
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.Op Ar service-name
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.Ar module-type
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.Ar control-flag
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.Pa pam_securetty
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.Op Ar options
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.Sh DESCRIPTION
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The SecureTTY authentication service module for PAM,
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.Nm
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provides functionality for only one PAM category:
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authentication.
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In terms of the
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.Ar module-type
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parameter, this is the
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.Dq Li auth
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feature.
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It also provides a null function for session management.
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.Ss SecureTTY Authentication Module
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The SecureTTY authentication component
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.Pq Fn pam_sm_authenticate ,
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returns success if the user is attempting to authenticate as superuser,
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and the process is attached to a secure TTY.
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Alternatively,
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if the user is not authenticating as superuser,
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the module always returns success.
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.Pp
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A TTY is defined as secure if its entry is fetchable from
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.Pa /etc/ttys
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by
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.Xr getttynam 3
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(see
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.Xr ttys 5 ) ,
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and the entry (a
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.Vt "struct ttyent" )
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has the
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.Dv TTY_SECURE
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flag set.
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.Pp
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The following options may be passed to the authentication module:
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.Bl -tag -width ".Cm no_warn"
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.It Cm debug
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.Xr syslog 3
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debugging information at
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.Dv LOG_DEBUG
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level.
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.It Cm no_warn
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suppress warning messages to the user.
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These messages include
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reasons why the user's
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authentication attempt was declined.
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.El
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.Sh SEE ALSO
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.Xr getttynam 3 ,
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.Xr syslog 3 ,
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.Xr pam.conf 5 ,
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.Xr ttys 5 ,
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.Xr pam 8
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