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