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 using namespace std;
32
ChildFunc(void *arg)33 static int ChildFunc(void *arg)
34 {
35 int ret;
36 int value = *((int *)arg);
37
38 if (value != CHILD_FUNC_ARG) {
39 return EXIT_CODE_ERRNO_1;
40 }
41
42 ret = mount(USERDATA_DEV_NAME, USERDATA_DIR_NAME, FS_TYPE, 0, nullptr);
43 if (ret != 0) {
44 return EXIT_CODE_ERRNO_2;
45 }
46
47 ret = access(ACCESS_FILE_NAME, F_OK);
48 if (ret != 0) {
49 return EXIT_CODE_ERRNO_3;
50 }
51
52 ret = chroot(USERDATA_DIR_NAME);
53 if (ret != 0) {
54 return EXIT_CODE_ERRNO_4;
55 }
56
57 ret = access(ACCESS_FILE_NAME, F_OK);
58 if (ret == 0) {
59 return EXIT_CODE_ERRNO_5;
60 }
61
62 ret = access(MNT_ACCESS_FILE_NAME, F_OK);
63 if (ret != 0) {
64 return EXIT_CODE_ERRNO_6;
65 }
66
67 return 0;
68 }
69
ItContainerChroot001(void)70 void ItContainerChroot001(void)
71 {
72 int ret;
73 int status = 0;
74 int childReturn = 0;
75 int arg = CHILD_FUNC_ARG;
76 char *stack = nullptr;
77 char *stackTop = nullptr;
78
79 stack = (char *)mmap(nullptr, STACK_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
80 ASSERT_NE(stack, MAP_FAILED);
81
82 ret = umount(USERDATA_DIR_NAME);
83 ASSERT_EQ(ret, 0);
84
85 stackTop = stack + STACK_SIZE;
86 auto pid = clone(ChildFunc, stackTop, CLONE_NEWNS, &arg);
87 ASSERT_NE(pid, -1);
88
89 ret = waitpid(pid, &status, 0);
90 ASSERT_EQ(ret, pid);
91
92 ret = WIFEXITED(status);
93 ASSERT_NE(ret, 0);
94
95 ret = WEXITSTATUS(status);
96 ASSERT_EQ(ret, 0);
97
98 ret = access(ACCESS_FILE_NAME, F_OK);
99 ASSERT_NE(ret, 0);
100
101 ret = umount(USERDATA_DIR_NAME);
102 ASSERT_NE(ret, 0);
103
104 ret = mount(USERDATA_DEV_NAME, USERDATA_DIR_NAME, FS_TYPE, 0, nullptr);
105 ASSERT_EQ(ret, 0);
106 }
107