1 /*
2 * Copyright (c) 2016 Fujitsu Ltd.
3 * Author: Jinbao Huang <huangjb.jy@cn.fujitsu.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 *
13 * You should have received a copy of the GNU General Public License
14 * alone with this program.
15 */
16
17 /*
18 * Test Name: lgetxattr01
19 *
20 * Description:
21 * The testcase checks the basic functionality of the lgetxattr(2).
22 * In the case of a symbolic link, we only get the value of the
23 * extended attribute related to the link itself by name.
24 *
25 */
26
27 #include "config.h"
28 #include <errno.h>
29 #include <sys/types.h>
30 #include <string.h>
31
32 #ifdef HAVE_SYS_XATTR_H
33 # include <sys/xattr.h>
34 #endif
35
36 #include "tst_test.h"
37
38 #ifdef HAVE_SYS_XATTR_H
39
40 #define SECURITY_KEY1 "security.ltptest1"
41 #define SECURITY_KEY2 "security.ltptest2"
42 #define VALUE1 "test1"
43 #define VALUE2 "test2"
44
set_xattr(char * path,char * key,void * value,size_t size)45 static void set_xattr(char *path, char *key, void *value, size_t size)
46 {
47 int res;
48
49 res = lsetxattr(path, key, value, size, XATTR_CREATE);
50 if (res == -1) {
51 if (errno == ENOTSUP) {
52 tst_brk(TCONF,
53 "no xattr support in fs or mounted "
54 "without user_xattr option");
55 } else {
56 tst_brk(TBROK | TERRNO, "lsetxattr(%s) failed", key);
57 }
58 }
59 }
60
setup(void)61 static void setup(void)
62 {
63 SAFE_TOUCH("testfile", 0644, NULL);
64 SAFE_SYMLINK("testfile", "symlink");
65
66 set_xattr("testfile", SECURITY_KEY1, VALUE1, strlen(VALUE1));
67 set_xattr("symlink", SECURITY_KEY2, VALUE2, strlen(VALUE2));
68 }
69
verify_lgetxattr(void)70 static void verify_lgetxattr(void)
71 {
72 int size = 64;
73 char buf[size];
74
75 TEST(lgetxattr("symlink", SECURITY_KEY2, buf, size));
76 if (TEST_RETURN == -1) {
77 tst_res(TFAIL | TTERRNO, "lgetxattr() failed");
78 goto next;
79 }
80
81 if (TEST_RETURN != strlen(VALUE2)) {
82 tst_res(TFAIL, "lgetxattr() got unexpected value size");
83 goto next;
84 }
85
86 if (!strncmp(buf, VALUE2, TEST_RETURN))
87 tst_res(TPASS, "lgetxattr() got expected value");
88 else
89 tst_res(TFAIL, "lgetxattr() got unexpected value");
90
91 next:
92 TEST(lgetxattr("symlink", SECURITY_KEY1, buf, size));
93
94 if (TEST_RETURN != -1) {
95 tst_res(TFAIL, "lgetxattr() succeeded unexpectedly");
96 return;
97 }
98
99 if (TEST_ERRNO == ENODATA) {
100 tst_res(TPASS | TTERRNO, "lgetxattr() failed as expected");
101 } else {
102 tst_res(TFAIL | TTERRNO, "lgetxattr() failed unexpectedly,"
103 "expected %s", tst_strerrno(ENODATA));
104 }
105 }
106
107 static struct tst_test test = {
108 .tid = "lgetxattr01",
109 .needs_tmpdir = 1,
110 .needs_root = 1,
111 .test_all = verify_lgetxattr,
112 .setup = setup
113 };
114
115 #else
116 TST_TEST_TCONF("<sys/xattr.h> does not exist.");
117 #endif /* HAVE_SYS_XATTR_H */
118