1 /*
2 * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this list of
8 * conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11 * of conditions and the following disclaimer in the documentation and/or other materials
12 * provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific prior written
16 * permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30 #include "It_container_test.h"
31
32 const int STR_LEN = 50;
33 const int SEC = 172800;
34 const long long NSEC = 800000000000;
35
WriteProcTime(int pid)36 static int WriteProcTime(int pid)
37 {
38 int ret;
39 char path[STR_LEN] = {0};
40 char timeOff[STR_LEN] = {0};
41
42 ret = sprintf_s(timeOff, STR_LEN, "monotonic %d %lld", SEC, NSEC);
43 if (ret < 0) {
44 return EXIT_CODE_ERRNO_3;
45 }
46 ret = sprintf_s(path, STR_LEN, "/proc/%d/time_offsets", pid);
47 if (ret < 0) {
48 return EXIT_CODE_ERRNO_3;
49 }
50 int strLen = strlen(timeOff);
51 int fd = open(path, O_WRONLY);
52 if (fd == -1) {
53 return EXIT_CODE_ERRNO_1;
54 }
55
56 ret = write(fd, timeOff, strLen);
57 if (ret != -1) {
58 close(fd);
59 return EXIT_CODE_ERRNO_2;
60 }
61
62 close(fd);
63 return 0;
64 }
65
TimeContainerUnshare(void)66 static void TimeContainerUnshare(void)
67 {
68 int ret = unshare(CLONE_NEWTIME);
69 ASSERT_EQ(ret, 0);
70
71 ret = WriteProcTime(getpid());
72 ASSERT_EQ(ret, 0);
73
74 exit(0);
75 }
76
ItTimeContainer008(void)77 void ItTimeContainer008(void)
78 {
79 int status = 0;
80 auto pid = fork();
81 ASSERT_TRUE(pid != -1);
82 if (pid == 0) {
83 TimeContainerUnshare();
84 exit(EXIT_CODE_ERRNO_1);
85 }
86 auto ret = waitpid(pid, &status, 0);
87 ASSERT_EQ(ret, pid);
88 ret = WIFEXITED(status);
89 ASSERT_NE(ret, 0);
90 ret = WEXITSTATUS(status);
91 ASSERT_EQ(ret, 0);
92 }
93