test_extattr_freebsd.c revision 302408 
1/*-
2 * Copyright (c) 2003-2009 Tim Kientzle
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25#include "test.h"
26__FBSDID("$FreeBSD: stable/11/contrib/libarchive/libarchive/test/test_extattr_freebsd.c 248995 2013-04-02 05:30:41Z mdf $");
27
28#if defined(__FreeBSD__) && __FreeBSD__ > 4
29#include <sys/extattr.h>
30#endif
31
32/*
33 * Verify extended attribute restore-to-disk.  This test is FreeBSD-specific.
34 */
35
36DEFINE_TEST(test_extattr_freebsd)
37{
38#if !defined(__FreeBSD__)
39	skipping("FreeBSD-specific extattr restore test");
40#elif __FreeBSD__ < 5
41	skipping("extattr restore supported only on FreeBSD 5.0 and later");
42#else
43	char buff[64];
44	const char *xname;
45	const void *xval;
46	size_t xsize;
47	struct stat st;
48	struct archive *a;
49	struct archive_entry *ae;
50	ssize_t n;
51	int fd;
52	int extattr_privilege_bug = 0;
53
54	/*
55	 * First, do a quick manual set/read of an extended attribute
56	 * to verify that the local filesystem does support it.  If it
57	 * doesn't, we'll simply skip the remaining tests.
58	 */
59	/* Create a test file and try to set an ACL on it. */
60	fd = open("pretest", O_RDWR | O_CREAT, 0777);
61	failure("Could not create test file?!");
62	if (!assert(fd >= 0))
63		return;
64
65	errno = 0;
66	n = extattr_set_fd(fd, EXTATTR_NAMESPACE_USER, "testattr", "1234", 4);
67	if (n != 4 && errno == EOPNOTSUPP) {
68		close(fd);
69		skipping("extattr tests require that extattr support be enabled on the filesystem");
70		return;
71	}
72	failure("extattr_set_fd(): errno=%d (%s)", errno, strerror(errno));
73	assertEqualInt(4, n);
74	close(fd);
75
76	/*
77	 * Repeat the above, but with file permissions set to 0000.
78	 * This should work (extattr_set_fd() should follow fd
79	 * permissions, not file permissions), but is known broken on
80	 * some versions of FreeBSD.
81	 */
82	fd = open("pretest2", O_RDWR | O_CREAT, 00000);
83	failure("Could not create test file?!");
84	if (!assert(fd >= 0))
85		return;
86
87	n = extattr_set_fd(fd, EXTATTR_NAMESPACE_USER, "testattr", "1234", 4);
88	if (n != 4) {
89		skipping("Restoring xattr to an unwritable file seems to be broken on this platform");
90		extattr_privilege_bug = 1;
91	}
92	close(fd);
93
94	/* Create a write-to-disk object. */
95	assert(NULL != (a = archive_write_disk_new()));
96	archive_write_disk_set_options(a,
97	    ARCHIVE_EXTRACT_TIME | ARCHIVE_EXTRACT_PERM | ARCHIVE_EXTRACT_XATTR);
98
99	/* Populate an archive entry with an extended attribute. */
100	ae = archive_entry_new();
101	assert(ae != NULL);
102	archive_entry_set_pathname(ae, "test0");
103	archive_entry_set_mtime(ae, 123456, 7890);
104	archive_entry_set_size(ae, 0);
105	archive_entry_set_mode(ae, 0755);
106	archive_entry_xattr_add_entry(ae, "user.foo", "12345", 5);
107	assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, ae));
108	assertEqualIntA(a, ARCHIVE_OK, archive_write_finish_entry(a));
109	archive_entry_free(ae);
110
111	/* Another entry; similar but with mode = 0. */
112	ae = archive_entry_new();
113	assert(ae != NULL);
114	archive_entry_set_pathname(ae, "test1");
115	archive_entry_set_mtime(ae, 12345678, 7890);
116	archive_entry_set_size(ae, 0);
117	archive_entry_set_mode(ae, 0);
118	archive_entry_xattr_add_entry(ae, "user.bar", "123456", 6);
119	assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, ae));
120	archive_entry_free(ae);
121
122	/* Close the archive. */
123	if (extattr_privilege_bug)
124		/* If the bug is here, write_close will return warning. */
125		assertEqualIntA(a, ARCHIVE_WARN, archive_write_close(a));
126	else
127		assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));
128	assertEqualInt(ARCHIVE_OK, archive_write_free(a));
129
130	/* Verify the data on disk. */
131	assertEqualInt(0, stat("test0", &st));
132	assertEqualInt(st.st_mtime, 123456);
133	/* Verify extattr */
134	n = extattr_get_file("test0", EXTATTR_NAMESPACE_USER,
135	    "foo", buff, sizeof(buff));
136	if (assertEqualInt(n, 5)) {
137		buff[n] = '\0';
138		assertEqualString(buff, "12345");
139	}
140
141	/* Verify the data on disk. */
142	assertEqualInt(0, stat("test1", &st));
143	assertEqualInt(st.st_mtime, 12345678);
144	/* Verify extattr */
145	n = extattr_get_file("test1", EXTATTR_NAMESPACE_USER,
146	    "bar", buff, sizeof(buff));
147	if (extattr_privilege_bug) {
148		/* If we have the bug, the extattr won't have been written. */
149		assertEqualInt(n, -1);
150	} else {
151		if (assertEqualInt(n, 6)) {
152			buff[n] = '\0';
153			assertEqualString(buff, "123456");
154		}
155	}
156
157	/* Use libarchive APIs to read the file back into an entry and
158	 * verify that the extattr was read correctly. */
159	assert((a = archive_read_disk_new()) != NULL);
160	assert((ae = archive_entry_new()) != NULL);
161	archive_entry_set_pathname(ae, "test0");
162	assertEqualInt(ARCHIVE_OK,
163	    archive_read_disk_entry_from_file(a, ae, -1, NULL));
164	assertEqualInt(1, archive_entry_xattr_reset(ae));
165	assertEqualInt(ARCHIVE_OK,
166	    archive_entry_xattr_next(ae, &xname, &xval, &xsize));
167	assertEqualString(xname, "user.foo");
168	assertEqualInt(xsize, 5);
169	assertEqualMem(xval, "12345", xsize);
170	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
171	assertEqualInt(ARCHIVE_OK, archive_read_free(a));
172	archive_entry_free(ae);
173#endif
174}
175