1 /*
2 * Check decoding of utimensat syscall.
3 *
4 * Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
5 * Copyright (c) 2015-2018 The strace developers.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "tests.h"
32 #include <fcntl.h>
33 #include <stdint.h>
34 #include <stdio.h>
35 #include <sys/stat.h>
36 #include <sys/time.h>
37 #include <unistd.h>
38 #include <asm/unistd.h>
39
40 #if defined __NR_utimensat && defined UTIME_NOW && defined UTIME_OMIT
41
42 #if SIZEOF_KERNEL_LONG_T == 4
43 # define big_tv_sec "-559038737"
44 # define huge_tv_sec "-559038737"
45 # else
46 # define big_tv_sec "3735928559"
47 # define huge_tv_sec "-3819351491602432273"
48 # endif
49
50 # if XLAT_RAW
51 # define str_at_fdcwd "-100"
52 # define str_at_symlink_nofollow "0x100"
53 # define str_at_removedir "0x200"
54 # define str_flags1 "0x600"
55 # define str_flags2 "0xffffffff"
56 # define str_utime_now_omit \
57 "[{tv_sec=" big_tv_sec ", tv_nsec=1073741823}, " \
58 "{tv_sec=" huge_tv_sec ", tv_nsec=1073741822}]"
59 # elif XLAT_VERBOSE
60 # define str_at_fdcwd "-100 /* AT_FDCWD */"
61 # define str_at_symlink_nofollow "0x100 /* AT_SYMLINK_NOFOLLOW */"
62 # define str_at_removedir "0x200 /* AT_REMOVEDIR */"
63 # define str_flags1 \
64 "0x600 /* AT_REMOVEDIR|AT_SYMLINK_FOLLOW */"
65 # define str_flags2 \
66 "0xffffffff /* AT_SYMLINK_NOFOLLOW|AT_REMOVEDIR|AT_SYMLINK_FOLLOW" \
67 "|AT_NO_AUTOMOUNT|AT_EMPTY_PATH|0xffffe0ff */"
68 # define str_utime_now_omit \
69 "[{tv_sec=" big_tv_sec ", tv_nsec=1073741823} /* UTIME_NOW */, " \
70 "{tv_sec=" huge_tv_sec ", tv_nsec=1073741822} /* UTIME_OMIT */]"
71 # else
72 # define str_at_fdcwd "AT_FDCWD"
73 # define str_at_symlink_nofollow "AT_SYMLINK_NOFOLLOW"
74 # define str_at_removedir "AT_REMOVEDIR"
75 # define str_flags1 "AT_REMOVEDIR|AT_SYMLINK_FOLLOW"
76 # define str_flags2 \
77 "AT_SYMLINK_NOFOLLOW|AT_REMOVEDIR|AT_SYMLINK_FOLLOW" \
78 "|AT_NO_AUTOMOUNT|AT_EMPTY_PATH|0xffffe0ff"
79 # define str_utime_now_omit "[UTIME_NOW, UTIME_OMIT]"
80 # endif
81
82 static void
print_ts(const struct timespec * ts)83 print_ts(const struct timespec *ts)
84 {
85 printf("{tv_sec=%lld, tv_nsec=%llu}", (long long) ts->tv_sec,
86 zero_extend_signed_to_ull(ts->tv_nsec));
87 print_time_t_nsec(ts->tv_sec,
88 zero_extend_signed_to_ull(ts->tv_nsec), 1);
89 }
90
91 static const char *errstr;
92
93 static long
k_utimensat(const kernel_ulong_t dirfd,const kernel_ulong_t pathname,const kernel_ulong_t times,const kernel_ulong_t flags)94 k_utimensat(const kernel_ulong_t dirfd,
95 const kernel_ulong_t pathname,
96 const kernel_ulong_t times,
97 const kernel_ulong_t flags)
98 {
99 long rc = syscall(__NR_utimensat, dirfd, pathname, times, flags);
100 errstr = sprintrc(rc);
101 return rc;
102 }
103
104 int
main(void)105 main(void)
106 {
107 static const kernel_ulong_t bogus_fd =
108 (kernel_ulong_t) 0xbadc0deddeadbeef;
109 static const kernel_ulong_t kfdcwd =
110 (kernel_ulong_t) 0xdefaced00000000 | -100U;
111 static const char proto_fname[] = "utimensat\nfilename";
112 static const char qname[] = "\"utimensat\\nfilename\"";
113
114 char *const fname = tail_memdup(proto_fname, sizeof(proto_fname));
115 const kernel_ulong_t kfname = (uintptr_t) fname;
116 struct timespec *const ts = tail_alloc(sizeof(*ts) * 2);
117
118 (void) close(0);
119
120 /* dirfd */
121 k_utimensat(0, kfname, 0, 0);
122 printf("utimensat(0, %s, NULL, 0) = %s\n", qname, errstr);
123
124 k_utimensat(bogus_fd, kfname, 0, 0);
125 printf("utimensat(%d, %s, NULL, 0) = %s\n",
126 (int) bogus_fd, qname, errstr);
127
128 k_utimensat(-100U, kfname, 0, 0);
129 printf("utimensat(" str_at_fdcwd ", %s, NULL, 0) = %s\n", qname, errstr);
130
131 k_utimensat(kfdcwd, kfname, 0, 0);
132 printf("utimensat(" str_at_fdcwd ", %s, NULL, 0) = %s\n", qname, errstr);
133
134 /* pathname */
135 k_utimensat(kfdcwd, 0, 0, 0);
136 printf("utimensat(" str_at_fdcwd ", NULL, NULL, 0) = %s\n", errstr);
137
138 k_utimensat(kfdcwd, kfname + sizeof(proto_fname) - 1, 0, 0);
139 printf("utimensat(" str_at_fdcwd ", \"\", NULL, 0) = %s\n", errstr);
140
141 fname[sizeof(proto_fname) - 1] = '+';
142 k_utimensat(kfdcwd, kfname, 0, 0);
143 fname[sizeof(proto_fname) - 1] = '\0';
144 printf("utimensat(" str_at_fdcwd ", %p, NULL, 0) = %s\n", fname, errstr);
145
146 if (F8ILL_KULONG_SUPPORTED) {
147 k_utimensat(kfdcwd, f8ill_ptr_to_kulong(fname), 0, 0);
148 printf("utimensat(" str_at_fdcwd ", %#jx, NULL, 0) = %s\n",
149 (uintmax_t) f8ill_ptr_to_kulong(fname), errstr);
150 }
151
152 /* times */
153 k_utimensat(kfdcwd, kfname, (uintptr_t) (ts + 1), 0);
154 printf("utimensat(" str_at_fdcwd ", %s, %p, 0) = %s\n",
155 qname, ts + 1, errstr);
156
157 k_utimensat(kfdcwd, kfname, (uintptr_t) (ts + 2), 0);
158 printf("utimensat(" str_at_fdcwd ", %s, %p, 0)"
159 " = %s\n", qname, ts + 2, errstr);
160
161 ts[0].tv_sec = 1492358706;
162 ts[0].tv_nsec = 123456789;
163 ts[1].tv_sec = 1492357068;
164 ts[1].tv_nsec = 234567890;
165
166 k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100);
167 printf("utimensat(" str_at_fdcwd ", %s, [", qname);
168 print_ts(&ts[0]);
169 printf(", ");
170 print_ts(&ts[1]);
171 printf("], " str_at_symlink_nofollow ") = %s\n", errstr);
172
173 ts[0].tv_sec = -1;
174 ts[0].tv_nsec = 2000000000;
175 ts[1].tv_sec = (time_t) -0x100000001LL;
176 ts[1].tv_nsec = 2345678900U;
177
178 k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100);
179 printf("utimensat(" str_at_fdcwd ", %s, [", qname);
180 print_ts(&ts[0]);
181 printf(", ");
182 print_ts(&ts[1]);
183 printf("], " str_at_symlink_nofollow ") = %s\n", errstr);
184
185 ts[0].tv_sec = 0;
186 ts[0].tv_nsec = 0;
187 ts[1].tv_sec = (time_t) 0xcafef00ddeadbeefLL;
188 ts[1].tv_nsec = 0;
189
190 k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100);
191 printf("utimensat(" str_at_fdcwd ", %s, [", qname);
192 print_ts(&ts[0]);
193 printf(", ");
194 print_ts(&ts[1]);
195 printf("], " str_at_symlink_nofollow ") = %s\n", errstr);
196
197 ts[0].tv_sec = 0xdeadbeefU;
198 ts[0].tv_nsec = 0xfacefeedU;
199 ts[1].tv_sec = (time_t) 0xcafef00ddeadbeefLL;
200 ts[1].tv_nsec = (long) 0xbadc0dedfacefeedLL;
201
202 k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100);
203 printf("utimensat(" str_at_fdcwd ", %s, [", qname);
204 print_ts(&ts[0]);
205 printf(", ");
206 print_ts(&ts[1]);
207 printf("], " str_at_symlink_nofollow ") = %s\n", errstr);
208
209 ts[0].tv_nsec = UTIME_NOW;
210 ts[1].tv_nsec = UTIME_OMIT;
211 k_utimensat(kfdcwd, kfname, (uintptr_t) ts, 0x100);
212 printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit
213 ", " str_at_symlink_nofollow ") = %s\n", qname, errstr);
214
215 if (F8ILL_KULONG_SUPPORTED) {
216 k_utimensat(kfdcwd, kfname, f8ill_ptr_to_kulong(ts), 0);
217 printf("utimensat(" str_at_fdcwd ", %s, %#jx, 0) = %s\n",
218 qname, (uintmax_t) f8ill_ptr_to_kulong(ts), errstr);
219 }
220
221 /* flags */
222 k_utimensat(kfdcwd, kfname, (uintptr_t) ts,
223 (kernel_ulong_t) 0xdefaced00000200);
224 printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit
225 ", " str_at_removedir ") = %s\n",
226 qname, errstr);
227
228 k_utimensat(kfdcwd, kfname, (uintptr_t) ts,
229 (kernel_ulong_t) 0xdefaced00000600);
230 printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit
231 ", " str_flags1 ") = %s\n",
232 qname, errstr);
233
234 k_utimensat(kfdcwd, kfname, (uintptr_t) ts, (kernel_ulong_t) -1ULL);
235 printf("utimensat(" str_at_fdcwd ", %s, " str_utime_now_omit
236 ", " str_flags2 ") = %s\n",
237 qname, errstr);
238
239 puts("+++ exited with 0 +++");
240 return 0;
241 }
242
243 #else
244
245 SKIP_MAIN_UNDEFINED("__NR_utimensat && UTIME_NOW && UTIME_OMIT")
246
247 #endif
248