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