19fa5f6b4SRobert Watson /*-
29fa5f6b4SRobert Watson * Copyright (c) 2006 nCircle Network Security, Inc.
3d903306aSRobert Watson * Copyright (c) 2007 Robert N. M. Watson
49fa5f6b4SRobert Watson * All rights reserved.
59fa5f6b4SRobert Watson *
69fa5f6b4SRobert Watson * This software was developed by Robert N. M. Watson for the TrustedBSD
79fa5f6b4SRobert Watson * Project under contract to nCircle Network Security, Inc.
89fa5f6b4SRobert Watson *
99fa5f6b4SRobert Watson * Redistribution and use in source and binary forms, with or without
109fa5f6b4SRobert Watson * modification, are permitted provided that the following conditions
119fa5f6b4SRobert Watson * are met:
129fa5f6b4SRobert Watson * 1. Redistributions of source code must retain the above copyright
139fa5f6b4SRobert Watson * notice, this list of conditions and the following disclaimer.
149fa5f6b4SRobert Watson * 2. Redistributions in binary form must reproduce the above copyright
159fa5f6b4SRobert Watson * notice, this list of conditions and the following disclaimer in the
169fa5f6b4SRobert Watson * documentation and/or other materials provided with the distribution.
179fa5f6b4SRobert Watson *
189fa5f6b4SRobert Watson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
199fa5f6b4SRobert Watson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
209fa5f6b4SRobert Watson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
219fa5f6b4SRobert Watson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
229fa5f6b4SRobert Watson * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
239fa5f6b4SRobert Watson * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
249fa5f6b4SRobert Watson * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
259fa5f6b4SRobert Watson * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
269fa5f6b4SRobert Watson * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
279fa5f6b4SRobert Watson * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
289fa5f6b4SRobert Watson * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
299fa5f6b4SRobert Watson */
309fa5f6b4SRobert Watson
319fa5f6b4SRobert Watson /*
329fa5f6b4SRobert Watson * Test that privilege is required to set the sgid bit on a file with a group
339fa5f6b4SRobert Watson * that isn't in the process credential. The file uid owner is set to the
349fa5f6b4SRobert Watson * uid being tested with, as we are not interested in testing privileges
359fa5f6b4SRobert Watson * associated with file ownership.
369fa5f6b4SRobert Watson */
379fa5f6b4SRobert Watson
389fa5f6b4SRobert Watson #include <sys/stat.h>
399fa5f6b4SRobert Watson
409fa5f6b4SRobert Watson #include <err.h>
419fa5f6b4SRobert Watson #include <errno.h>
429fa5f6b4SRobert Watson #include <fcntl.h>
439fa5f6b4SRobert Watson #include <unistd.h>
449fa5f6b4SRobert Watson
459fa5f6b4SRobert Watson #include "main.h"
469fa5f6b4SRobert Watson
47d903306aSRobert Watson static char fpath[1024];
48d903306aSRobert Watson static int fpath_initialized;
49d903306aSRobert Watson
50d903306aSRobert Watson int
priv_vfs_setgid_fowner_setup(int asroot,int injail,struct test * test)51d903306aSRobert Watson priv_vfs_setgid_fowner_setup(int asroot, int injail, struct test *test)
52d903306aSRobert Watson {
53d903306aSRobert Watson
54d903306aSRobert Watson setup_file("priv_vfs_setgid_fowner: fpath", fpath, UID_OWNER,
55d903306aSRobert Watson GID_OWNER, 0600);
56d903306aSRobert Watson fpath_initialized = 1;
57d903306aSRobert Watson return (0);
58d903306aSRobert Watson }
59d903306aSRobert Watson
60d903306aSRobert Watson int
priv_vfs_setgid_fother_setup(int asroot,int injail,struct test * test)61d903306aSRobert Watson priv_vfs_setgid_fother_setup(int asroot, int injail, struct test *test)
62d903306aSRobert Watson {
63d903306aSRobert Watson
64d903306aSRobert Watson /* NOTE: owner uid, *other* gid. */
65d903306aSRobert Watson setup_file("priv_vfs_setgid_forther: fpath", fpath, UID_OWNER,
66d903306aSRobert Watson GID_OTHER, 0600);
67d903306aSRobert Watson fpath_initialized = 1;
68d903306aSRobert Watson return (0);
69d903306aSRobert Watson }
709fa5f6b4SRobert Watson
719fa5f6b4SRobert Watson void
priv_vfs_setgid_fowner(int asroot,int injail,struct test * test)72d903306aSRobert Watson priv_vfs_setgid_fowner(int asroot, int injail, struct test *test)
739fa5f6b4SRobert Watson {
74d903306aSRobert Watson int error;
759fa5f6b4SRobert Watson
76d903306aSRobert Watson error = chmod(fpath, 0600 | S_ISGID);
77d903306aSRobert Watson if (asroot && injail)
78d903306aSRobert Watson expect("priv_vfs_setgid_fowner(asroot, injail)", error, 0,
79d903306aSRobert Watson 0);
80d903306aSRobert Watson if (asroot && !injail)
81d903306aSRobert Watson expect("priv_vfs_setgid_fowner(asroot, !injail)", error, 0,
82d903306aSRobert Watson 0);
83d903306aSRobert Watson if (!asroot && injail)
84d903306aSRobert Watson expect("priv_vfs_setgid_fowner(!asroot, injail)", error, 0,
85d903306aSRobert Watson 0);
86d903306aSRobert Watson if (!asroot && !injail)
87d903306aSRobert Watson expect("priv_vfs_setgid_fowner(!asroot, !injail)", error, 0,
88d903306aSRobert Watson 0);
899fa5f6b4SRobert Watson }
909fa5f6b4SRobert Watson
91d903306aSRobert Watson void
priv_vfs_setgid_fother(int asroot,int injail,struct test * test)92d903306aSRobert Watson priv_vfs_setgid_fother(int asroot, int injail, struct test *test)
93d903306aSRobert Watson {
94d903306aSRobert Watson int error;
95d903306aSRobert Watson
96d903306aSRobert Watson error = chmod(fpath, 0600 | S_ISGID);
97d903306aSRobert Watson if (asroot && injail)
98d903306aSRobert Watson expect("priv_vfs_setgid_fother(asroot, injail)", error, 0,
99d903306aSRobert Watson 0);
100d903306aSRobert Watson if (asroot && !injail)
101d903306aSRobert Watson expect("priv_vfs_setgid_fother(asroot, !injail)", error, 0,
102d903306aSRobert Watson 0);
103d903306aSRobert Watson if (!asroot && injail)
104d903306aSRobert Watson expect("priv_vfs_setgid_fother(!asroot, injail)", error, -1,
105d903306aSRobert Watson EPERM);
106d903306aSRobert Watson if (!asroot && !injail)
107d903306aSRobert Watson expect("priv_vfs_setgid_fother(!asroot, !injail)", error, -1,
108d903306aSRobert Watson EPERM);
1099fa5f6b4SRobert Watson }
1109fa5f6b4SRobert Watson
111d903306aSRobert Watson void
priv_vfs_setgid_cleanup(int asroot,int injail,struct test * test)112d903306aSRobert Watson priv_vfs_setgid_cleanup(int asroot, int injail, struct test *test)
113d903306aSRobert Watson {
1149fa5f6b4SRobert Watson
115d903306aSRobert Watson if (fpath_initialized) {
1169fa5f6b4SRobert Watson (void)unlink(fpath);
117d903306aSRobert Watson fpath_initialized = 0;
118d903306aSRobert Watson }
1199fa5f6b4SRobert Watson }
120