test_extattr_freebsd.c revision 228763 
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: head/contrib/libarchive/libarchive/test/test_extattr_freebsd.c 228763 2011-12-21 11:13:29Z mm $");
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	int n, fd;
51	int extattr_privilege_bug = 0;
52
53	/*
54	 * First, do a quick manual set/read of an extended attribute
55	 * to verify that the local filesystem does support it.  If it
56	 * doesn't, we'll simply skip the remaining tests.
57	 */
58	/* Create a test file and try to set an ACL on it. */
59	fd = open("pretest", O_RDWR | O_CREAT, 0777);
60	failure("Could not create test file?!");
61	if (!assert(fd >= 0))
62		return;
63
64	errno = 0;
65	n = extattr_set_fd(fd, EXTATTR_NAMESPACE_USER, "testattr", "1234", 4);
66	if (n != 4 && errno == EOPNOTSUPP) {
67		close(fd);
68		skipping("extattr tests require that extattr support be enabled on the filesystem");
69		return;
70	}
71	failure("extattr_set_fd(): errno=%d (%s)", errno, strerror(errno));
72	assertEqualInt(4, n);
73	close(fd);
74
75	/*
76	 * Repeat the above, but with file permissions set to 0000.
77	 * This should work (extattr_set_fd() should follow fd
78	 * permissions, not file permissions), but is known broken on
79	 * some versions of FreeBSD.
80	 */
81	fd = open("pretest2", O_RDWR | O_CREAT, 00000);
82	failure("Could not create test file?!");
83	if (!assert(fd >= 0))
84		return;
85
86	n = extattr_set_fd(fd, EXTATTR_NAMESPACE_USER, "testattr", "1234", 4);
87	if (n != 4) {
88		skipping("Restoring xattr to an unwritable file seems to be broken on this platform");
89		extattr_privilege_bug = 1;
90	}
91	close(fd);
92
93	/* Create a write-to-disk object. */
94	assert(NULL != (a = archive_write_disk_new()));
95	archive_write_disk_set_options(a,
96	    ARCHIVE_EXTRACT_TIME | ARCHIVE_EXTRACT_PERM | ARCHIVE_EXTRACT_XATTR);
97
98	/* Populate an archive entry with an extended attribute. */
99	ae = archive_entry_new();
100	assert(ae != NULL);
101	archive_entry_set_pathname(ae, "test0");
102	archive_entry_set_mtime(ae, 123456, 7890);
103	archive_entry_set_size(ae, 0);
104	archive_entry_set_mode(ae, 0755);
105	archive_entry_xattr_add_entry(ae, "user.foo", "12345", 5);
106	assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, ae));
107	archive_entry_free(ae);
108
109	/* Another entry; similar but with mode = 0. */
110	ae = archive_entry_new();
111	assert(ae != NULL);
112	archive_entry_set_pathname(ae, "test1");
113	archive_entry_set_mtime(ae, 12345678, 7890);
114	archive_entry_set_size(ae, 0);
115	archive_entry_set_mode(ae, 0);
116	archive_entry_xattr_add_entry(ae, "user.bar", "123456", 6);
117	assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, ae));
118	archive_entry_free(ae);
119
120	/* Close the archive. */
121	if (extattr_privilege_bug)
122		/* If the bug is here, write_close will return warning. */
123		assertEqualIntA(a, ARCHIVE_WARN, archive_write_close(a));
124	else
125		assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));
126	assertEqualInt(ARCHIVE_OK, archive_write_finish(a));
127
128	/* Verify the data on disk. */
129	assertEqualInt(0, stat("test0", &st));
130	assertEqualInt(st.st_mtime, 123456);
131	/* Verify extattr */
132	n = extattr_get_file("test0", EXTATTR_NAMESPACE_USER,
133	    "foo", buff, sizeof(buff));
134	if (assertEqualInt(n, 5)) {
135		buff[n] = '\0';
136		assertEqualString(buff, "12345");
137	}
138
139	/* Verify the data on disk. */
140	assertEqualInt(0, stat("test1", &st));
141	assertEqualInt(st.st_mtime, 12345678);
142	/* Verify extattr */
143	n = extattr_get_file("test1", EXTATTR_NAMESPACE_USER,
144	    "bar", buff, sizeof(buff));
145	if (extattr_privilege_bug) {
146		/* If we have the bug, the extattr won't have been written. */
147		assertEqualInt(n, -1);
148	} else {
149		if (assertEqualInt(n, 6)) {
150			buff[n] = '\0';
151			assertEqualString(buff, "123456");
152		}
153	}
154
155	/* Use libarchive APIs to read the file back into an entry and
156	 * verify that the extattr was read correctly. */
157	assert((a = archive_read_disk_new()) != NULL);
158	assert((ae = archive_entry_new()) != NULL);
159	archive_entry_set_pathname(ae, "test0");
160	assertEqualInt(ARCHIVE_OK,
161	    archive_read_disk_entry_from_file(a, ae, -1, NULL));
162	assertEqualInt(1, archive_entry_xattr_reset(ae));
163	assertEqualInt(ARCHIVE_OK,
164	    archive_entry_xattr_next(ae, &xname, &xval, &xsize));
165	assertEqualString(xname, "user.foo");
166	assertEqualInt(xsize, 5);
167	assertEqualMem(xval, "12345", xsize);
168	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
169	assertEqualInt(ARCHIVE_OK, archive_read_finish(a));
170	archive_entry_free(ae);
171#endif
172}
173