1/*-
2 * Copyright (c) 2006 nCircle Network Security, Inc.
3 * Copyright (c) 2007 Robert N. M. Watson
4 * All rights reserved.
5 *
6 * This software was developed by Robert N. M. Watson for the TrustedBSD
7 * Project under contract to nCircle Network Security, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
22 * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
24 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
26 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * $FreeBSD$
31 */
32
33/*
34 * Test that privilege is required to write to the system extended attribute
35 * namespace.
36 */
37
38#include <sys/types.h>
39#include <sys/extattr.h>
40
41#include <err.h>
42#include <errno.h>
43#include <string.h>
44#include <unistd.h>
45
46#include "main.h"
47
48#define	EA_NAMESPACE	EXTATTR_NAMESPACE_SYSTEM
49#define	EA_NAME		"test"
50#define	EA_DATA		"test"
51#define	EA_SIZE		strlen(EA_DATA)
52
53static char fpath[1024];
54static int fpath_initialized;
55
56int
57priv_vfs_extattr_system_setup(int asroot, int injail, struct test *test)
58{
59
60	/*
61	 * Set file perms so that discretionary access control would grant
62	 * write rights on non-system EAs on the file.
63	 */
64	setup_file("priv_vfs_extattr_system_setup: fpath", fpath, UID_ROOT,
65	    GID_WHEEL, 0666);
66	fpath_initialized = 1;
67	return (0);
68}
69
70void
71priv_vfs_extattr_system(int asroot, int injail, struct test *test)
72{
73	ssize_t ret;
74	int error;
75
76	ret = extattr_set_file(fpath, EA_NAMESPACE, EA_NAME, EA_DATA,
77	    EA_SIZE);
78	if (ret < 0)
79		error = -1;
80	else if (ret == EA_SIZE)
81		error = 0;
82	else
83		err(-1, "priv_vfs_extattr_system: set returned %zd", ret);
84	if (asroot && injail)
85		expect("priv_vfs_extattr_system(asroot, injail)", error, -1,
86		    EPERM);
87	if (asroot && !injail)
88		expect("priv_vfs_extattr_system(asroot, !injail)", error, 0,
89		    0);
90	if (!asroot && injail)
91		expect("priv_vfs_extattr_system(!asroot, injail)", error, -1,
92		    EPERM);
93	if (!asroot && !injail)
94		expect("priv_vfs_extattr_system(!asroot, !injail)", error,
95		    -1, EPERM);
96}
97
98void
99priv_vfs_extattr_system_cleanup(int asroot, int injail, struct test *test)
100{
101
102	if (fpath_initialized) {
103		(void)unlink(fpath);
104		fpath_initialized = 0;
105	}
106}
107