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
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35.\" $FreeBSD: head/lib/libpam/modules/pam_self/pam_self.8 131504 2004-07-02 23:52:20Z ru $
36.\"
37.Dd December 5, 2001
38.Dt PAM_SELF 8
39.Os
40.Sh NAME
41.Nm pam_self
42.Nd Self PAM module
43.Sh SYNOPSIS
44.Op Ar service-name
45.Ar module-type
46.Ar control-flag
47.Pa pam_self
48.Op Ar options
49.Sh DESCRIPTION
50The Self authentication service module for PAM,
51.Nm
52provides functionality for only one PAM category:
53authentication.
54In terms of the
55.Ar module-type
56parameter, this is the
57.Dq Li auth
58feature.
59.Ss Self Authentication Module
60The Self authentication component
61.Pq Fn pam_sm_authenticate ,
62returns success if and only if the target user's user ID is identical
63with the current real user ID.
64If the current real user ID is zero, authentication will fail,
65unless the
66.Cm allow_root
67option was specified.
68.Pp
69The following options may be passed to the authentication module:
70.Bl -tag -width ".Cm allow_root"
71.It Cm debug
72.Xr syslog 3
73debugging information at
74.Dv LOG_DEBUG
75level.
76.It Cm no_warn
77suppress warning messages to the user.
78These messages include reasons why the user's authentication attempt
79was declined.
80.It Cm allow_root
81do not automatically fail if the current real user ID is 0.
82.El
83.Sh SEE ALSO
84.Xr getuid 2 ,
85.Xr pam 3 ,
86.Xr pam.conf 5
87.Sh AUTHORS
88The
89.Nm
90module and this manual page were developed for the
91.Fx
92Project by
93ThinkSec AS and NAI Labs, the Security Research Division of Network
94Associates, Inc.\& under DARPA/SPAWAR contract N66001-01-C-8035
95.Pq Dq CBOSS ,
96as part of the DARPA CHATS research program.
97