1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28/*	  All Rights Reserved  	*/
29
30/*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40#pragma ident	"%Z%%M%	%I%	%E% SMI"
41
42/*
43 * unset the secret key on local machine
44 */
45#include <stdio.h>
46#include <rpc/rpc.h>
47#include <rpc/key_prot.h>
48#include <nfs/nfs.h>
49#include <nfs/nfssys.h>
50
51extern int key_removesecret_g();
52
53/* for revoking kernel NFS credentials */
54struct nfs_revauth_args nra;
55
56int
57main(int argc, char *argv[])
58{
59	static char secret[HEXKEYBYTES + 1];
60	int err = 0;
61
62	if (geteuid() == 0) {
63		if ((argc != 2) || (strcmp(argv[1], "-f") != 0)) {
64			fprintf(stderr,
65"keylogout by root would break the rpc services that");
66			fprintf(stderr, " use secure rpc on this host!\n");
67			fprintf(stderr,
68"root may use keylogout -f to do this (at your own risk)!\n");
69			exit(-1);
70		}
71	}
72
73	if (key_removesecret_g() < 0) {
74			fprintf(stderr, "Could not unset your secret key.\n");
75			fprintf(stderr, "Maybe the keyserver is down?\n");
76			err = 1;
77	}
78	if (key_setsecret(secret) < 0) {
79		if (!err) {
80			fprintf(stderr, "Could not unset your secret key.\n");
81			fprintf(stderr, "Maybe the keyserver is down?\n");
82			err = 1;
83		}
84	}
85
86	nra.authtype = AUTH_DES;	/* only revoke DES creds */
87	nra.uid = getuid();		/* use the real uid */
88	if (_nfssys(NFS_REVAUTH, &nra) < 0) {
89		perror("Warning: NFS credentials not destroyed");
90		err = 1;
91	}
92
93	return (err);
94}
95