1 /*
2 * Copyright (c) Crackerjack Project., 2007 ,Hitachi, Ltd
3 * Author(s): Takahiro Yasui <takahiro.yasui.mp@hitachi.com>
4 * Ported to LTP: Manas Kumar Nayak maknayak@in.ibm.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
14 * the GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20 /*
21 * Description:
22 * Verify that,
23 * 1) utimes() returns -1 and sets errno to EACCES if times
24 * is NULL, the caller's effective user ID does not match
25 * the owner of the file, the caller does not have write
26 * access to the file, and the caller is not privileged.
27 * 2) utimes() returns -1 and sets errno to ENOENT if filename
28 * does not exist.
29 * 3) utimes() returns -1 and sets errno to EFAULT if filename
30 * is NULL.
31 * 4) utimes() returns -1 and sets errno to EPERM if times is
32 * not NULL, the caller's effective UID does not match the
33 * owner of the file, and the caller is not privileged.
34 * 5) utimes() returns -1 and sets errno to EROFS if path resides
35 * on a read-only file system.
36 */
37
38 #include <sys/types.h>
39 #include <sys/stat.h>
40 #include <sys/time.h>
41 #include <dirent.h>
42 #include <unistd.h>
43 #include <getopt.h>
44 #include <string.h>
45 #include <stdlib.h>
46 #include <errno.h>
47 #include <stdio.h>
48 #include <pwd.h>
49 #include <sys/mount.h>
50
51 #include "test.h"
52 #include "safe_macros.h"
53 #include "lapi/syscalls.h"
54
55 #define MNTPOINT "mntpoint"
56 #define TESTFILE1 "testfile1"
57 #define TESTFILE2 "testfile2"
58 #define TESTFILE3 "mntpoint/testfile"
59 #define FILE_MODE (S_IRWXU | S_IRGRP | S_IXGRP | \
60 S_IROTH | S_IXOTH)
61 #define DIR_MODE (S_IRWXU | S_IRWXG | S_IRWXO)
62
63 #define LTPUSER1 "nobody"
64 #define LTPUSER2 "bin"
65
66 static const char *device;
67 static int mount_flag;
68
69 static struct timeval a_tv[2] = { {0, 0}, {1000, 0} };
70 static struct timeval m_tv[2] = { {1000, 0}, {0, 0} };
71 static struct timeval tv[2] = { {1000, 0}, {2000, 0} };
72
73 static struct test_case_t {
74 char *pathname;
75 struct timeval *times;
76 int exp_errno;
77 } test_cases[] = {
78 { TESTFILE1, a_tv, 0 },
79 { TESTFILE1, m_tv, 0 },
80 { TESTFILE2, NULL, EACCES },
81 { "notexistfile", tv, ENOENT },
82 { NULL, tv, EFAULT },
83 { TESTFILE2, tv, EPERM },
84 { TESTFILE3, tv, EROFS },
85 };
86
87 static void setup(void);
88 static void cleanup(void);
89 static void utimes_verify(const struct test_case_t *);
90
91 char *TCID = "utimes01";
92 int TST_TOTAL = ARRAY_SIZE(test_cases);
93
main(int ac,char ** av)94 int main(int ac, char **av)
95 {
96 int i, lc;
97
98 tst_parse_opts(ac, av, NULL, NULL);
99
100 setup();
101
102 for (lc = 0; TEST_LOOPING(lc); ++lc) {
103 tst_count = 0;
104
105 for (i = 0; i < TST_TOTAL; i++)
106 utimes_verify(&test_cases[i]);
107 }
108
109 cleanup();
110 tst_exit();
111 }
112
setup(void)113 static void setup(void)
114 {
115 struct passwd *ltpuser;
116 const char *fs_type;
117
118 tst_require_root();
119
120 tst_sig(NOFORK, DEF_HANDLER, cleanup);
121
122 TEST_PAUSE;
123
124 tst_tmpdir();
125
126 fs_type = tst_dev_fs_type();
127 device = tst_acquire_device(cleanup);
128
129 if (!device)
130 tst_brkm(TCONF, cleanup, "Failed to obtain block device");
131
132 SAFE_TOUCH(cleanup, TESTFILE1, FILE_MODE, NULL);
133 ltpuser = SAFE_GETPWNAM(cleanup, LTPUSER1);
134 SAFE_CHOWN(cleanup, TESTFILE1, ltpuser->pw_uid,
135 ltpuser->pw_gid);
136
137 SAFE_TOUCH(cleanup, TESTFILE2, FILE_MODE, NULL);
138 ltpuser = SAFE_GETPWNAM(cleanup, LTPUSER2);
139 SAFE_CHOWN(cleanup, TESTFILE2, ltpuser->pw_uid,
140 ltpuser->pw_gid);
141
142 tst_mkfs(cleanup, device, fs_type, NULL, NULL);
143 SAFE_MKDIR(cleanup, MNTPOINT, DIR_MODE);
144 SAFE_MOUNT(cleanup, device, MNTPOINT, fs_type, 0, NULL);
145 mount_flag = 1;
146 SAFE_TOUCH(cleanup, TESTFILE3, FILE_MODE, NULL);
147 ltpuser = SAFE_GETPWNAM(cleanup, LTPUSER1);
148 SAFE_CHOWN(cleanup, TESTFILE3, ltpuser->pw_uid,
149 ltpuser->pw_gid);
150 SAFE_MOUNT(cleanup, device, MNTPOINT, fs_type, MS_REMOUNT | MS_RDONLY,
151 NULL);
152
153 ltpuser = SAFE_GETPWNAM(cleanup, LTPUSER1);
154 SAFE_SETEUID(cleanup, ltpuser->pw_uid);
155 }
156
utimes_verify(const struct test_case_t * tc)157 static void utimes_verify(const struct test_case_t *tc)
158 {
159 struct stat st;
160 struct timeval tmp_tv[2];
161
162 if (tc->exp_errno == 0) {
163 SAFE_STAT(cleanup, tc->pathname, &st);
164
165 tmp_tv[0].tv_sec = st.st_atime;
166 tmp_tv[0].tv_usec = 0;
167 tmp_tv[1].tv_sec = st.st_mtime;
168 tmp_tv[1].tv_usec = 0;
169 }
170
171 TEST(utimes(tc->pathname, tc->times));
172
173 if (TEST_ERRNO == tc->exp_errno) {
174 tst_resm(TPASS | TTERRNO, "utimes() worked as expected");
175 } else {
176 tst_resm(TFAIL | TTERRNO,
177 "utimes() failed unexpectedly; expected: %d - %s",
178 tc->exp_errno, strerror(tc->exp_errno));
179 }
180
181 if (TEST_ERRNO == 0 && utimes(tc->pathname, tmp_tv) == -1)
182 tst_brkm(TBROK | TERRNO, cleanup, "utimes() failed.");
183 }
184
cleanup(void)185 static void cleanup(void)
186 {
187 if (seteuid(0) == -1)
188 tst_resm(TWARN | TERRNO, "seteuid(0) failed");
189
190 if (mount_flag && tst_umount(MNTPOINT) == -1)
191 tst_resm(TWARN | TERRNO, "umount %s failed", MNTPOINT);
192
193
194 if (device)
195 tst_release_device(device);
196
197 tst_rmdir();
198 }
199