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 #include "sys/mount.h"
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 = unshare(CLONE_NEWNS);
43 if (ret != 0) {
44 return EXIT_CODE_ERRNO_2;
45 }
46
47 ret = mount(USERDATA_DEV_NAME, USERDATA_DIR_NAME, FS_TYPE, 0, nullptr);
48 if (ret != 0) {
49 return EXIT_CODE_ERRNO_2;
50 }
51
52 ret = access(ACCESS_FILE_NAME, F_OK);
53 if (ret != 0) {
54 return EXIT_CODE_ERRNO_2;
55 }
56
57 return 0;
58 }
59
60 /*
61 * mount container unshare test: child clone without NEW_NS,
62 * unshare in child with NEW_NS, umount in child
63 */
ItMntContainer007(void)64 void ItMntContainer007(void)
65 {
66 int ret;
67 int status = 0;
68 int childReturn = 0;
69 int arg = CHILD_FUNC_ARG;
70 char *stack = nullptr;
71 char *stackTop = nullptr;
72
73 stack = (char *)mmap(nullptr, STACK_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
74 ASSERT_NE(stack, MAP_FAILED);
75
76 ret = umount(USERDATA_DIR_NAME);
77 ASSERT_EQ(ret, 0);
78
79 stackTop = stack + STACK_SIZE;
80 auto pid = clone(ChildFunc, stackTop, 0, &arg);
81 ASSERT_NE(pid, -1);
82
83 ret = waitpid(pid, &status, 0);
84 ASSERT_EQ(ret, pid);
85
86 ret = WIFEXITED(status);
87 ASSERT_NE(ret, 0);
88
89 ret = WEXITSTATUS(status);
90 ASSERT_EQ(ret, 0);
91
92 ret = access(ACCESS_FILE_NAME, F_OK);
93 ASSERT_NE(ret, 0);
94
95 ret = umount(USERDATA_DIR_NAME);
96 ASSERT_NE(ret, 0);
97
98 ret = mount(USERDATA_DEV_NAME, USERDATA_DIR_NAME, FS_TYPE, 0, nullptr);
99 ASSERT_EQ(ret, 0);
100 }
101