1.\" $NetBSD: pam_self.8,v 1.2 2004/12/12 08:18:47 christos Exp $ 2.\" Copyright (c) 2001 Mark R V Murray 3.\" All rights reserved. 4.\" Copyright (c) 2001 Networks Associates Technology, Inc. 5.\" All rights reserved. 6.\" 7.\" Portions of this software were developed for the FreeBSD Project by 8.\" ThinkSec AS and NAI Labs, the Security Research Division of Network 9.\" Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 10.\" ("CBOSS"), as part of the DARPA CHATS research program. 11.\" 12.\" Redistribution and use in source and binary forms, with or without 13.\" modification, are permitted provided that the following conditions 14.\" are met: 15.\" 1. Redistributions of source code must retain the above copyright 16.\" notice, this list of conditions and the following disclaimer. 17.\" 2. Redistributions in binary form must reproduce the above copyright 18.\" notice, this list of conditions and the following disclaimer in the 19.\" documentation and/or other materials provided with the distribution. 20.\" 3. The name of the author may not be used to endorse or promote 21.\" products derived from this software without specific prior written 22.\" permission. 23.\" 24.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 25.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 28.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34.\" SUCH DAMAGE. 35.\" 36.\" $FreeBSD: src/lib/libpam/modules/pam_self/pam_self.8,v 1.11 2004/07/02 23:52:18 ru Exp $ 37.\" 38.Dd December 5, 2001 39.Dt PAM_SELF 8 40.Os 41.Sh NAME 42.Nm pam_self 43.Nd Self PAM module 44.Sh SYNOPSIS 45.Op Ar service-name 46.Ar module-type 47.Ar control-flag 48.Pa pam_self 49.Op Ar options 50.Sh DESCRIPTION 51The Self authentication service module for PAM, 52.Nm 53provides functionality for only one PAM category: 54authentication. 55In terms of the 56.Ar module-type 57parameter, this is the 58.Dq Li auth 59feature. 60.Ss Self Authentication Module 61The Self authentication component 62.Pq Fn pam_sm_authenticate , 63returns success if and only if the target user's user ID is identical 64with the current real user ID. 65If the current real user ID is zero, authentication will fail, 66unless the 67.Cm allow_root 68option was specified. 69.Pp 70The following options may be passed to the authentication module: 71.Bl -tag -width ".Cm allow_root" 72.It Cm debug 73.Xr syslog 3 74debugging information at 75.Dv LOG_DEBUG 76level. 77.It Cm no_warn 78suppress warning messages to the user. 79These messages include reasons why the user's authentication attempt 80was declined. 81.It Cm allow_root 82do not automatically fail if the current real user ID is 0. 83.El 84.Sh SEE ALSO 85.Xr getuid 2 , 86.Xr pam.conf 5 , 87.Xr pam 8 88.Sh AUTHORS 89The 90.Nm 91module and this manual page were developed for the 92.Fx 93Project by 94ThinkSec AS and NAI Labs, the Security Research Division of Network 95Associates, Inc.\& under DARPA/SPAWAR contract N66001-01-C-8035 96.Pq Dq CBOSS , 97as part of the DARPA CHATS research program. 98