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      1 /*	$NetBSD: pam_rootok.c,v 1.3 2006/11/03 18:03:23 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 Mark R V Murray
      5  * All rights reserved.
      6  * Copyright (c) 2001 Networks Associates Technology, Inc.
      7  * All rights reserved.
      8  *
      9  * Portions of this software were developed for the FreeBSD Project by
     10  * ThinkSec AS and NAI Labs, the Security Research Division of Network
     11  * Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
     12  * ("CBOSS"), as part of the DARPA CHATS research program.
     13  *
     14  * Redistribution and use in source and binary forms, with or without
     15  * modification, are permitted provided that the following conditions
     16  * are met:
     17  * 1. Redistributions of source code must retain the above copyright
     18  *    notice, this list of conditions and the following disclaimer.
     19  * 2. Redistributions in binary form must reproduce the above copyright
     20  *    notice, this list of conditions and the following disclaimer in the
     21  *    documentation and/or other materials provided with the distribution.
     22  * 3. The name of the author may not be used to endorse or promote
     23  *    products derived from this software without specific prior written
     24  *    permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 #ifdef __FreeBSD__
     41 __FBSDID("$FreeBSD: src/lib/libpam/modules/pam_rootok/pam_rootok.c,v 1.8 2002/04/12 22:27:23 des Exp $");
     42 #else
     43 __RCSID("$NetBSD: pam_rootok.c,v 1.3 2006/11/03 18:03:23 christos Exp $");
     44 #endif
     45 
     46 #define _BSD_SOURCE
     47 
     48 #include <unistd.h>
     49 
     50 #define PAM_SM_AUTH
     51 
     52 #include <security/pam_appl.h>
     53 #include <security/pam_modules.h>
     54 #include <security/pam_mod_misc.h>
     55 
     56 PAM_EXTERN int
     57 pam_sm_authenticate(pam_handle_t *pamh, int flags __unused,
     58     int argc __unused, const char *argv[] __unused)
     59 {
     60 
     61 	if (getuid() == 0)
     62 		return (PAM_SUCCESS);
     63 
     64 	PAM_VERBOSE_ERROR("Refused; not superuser");
     65 	PAM_LOG("User is not superuser");
     66 
     67 	return (PAM_AUTH_ERR);
     68 }
     69 
     70 PAM_EXTERN int
     71 pam_sm_setcred(pam_handle_t *pamh __unused, int flags __unused,
     72     int argc __unused, const char *argv[] __unused)
     73 {
     74 
     75 	return (PAM_SUCCESS);
     76 }
     77 
     78 PAM_MODULE_ENTRY("pam_rootok");
     79