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 if (value != CHILD_FUNC_ARG) {
38 return EXIT_CODE_ERRNO_1;
39 }
40
41 ret = access(ACCESS_FILE_NAME, F_OK);
42 if (ret != 0) {
43 return EXIT_CODE_ERRNO_2;
44 }
45
46 ret = unshare(CLONE_NEWNS);
47 if (ret != 0) {
48 return EXIT_CODE_ERRNO_3;
49 }
50
51 ret = access(ACCESS_FILE_NAME, F_OK);
52 if (ret != 0) {
53 return EXIT_CODE_ERRNO_4;
54 }
55
56 ret = umount(USERDATA_DIR_NAME);
57 if (ret != 0) {
58 return EXIT_CODE_ERRNO_5;
59 }
60
61 ret = access(ACCESS_FILE_NAME, F_OK);
62 if (ret == 0) {
63 return EXIT_CODE_ERRNO_6;
64 }
65
66 return 0;
67 }
68
69 /*
70 * mount container unshare test: mount in parent, child clone without NEW_NS,
71 * unshare in child with NEW_NS, umount in child.
72 */
ItMntContainer006(void)73 void ItMntContainer006(void)
74 {
75 int ret;
76 int status = 0;
77 int childReturn = 0;
78 int arg = CHILD_FUNC_ARG;
79 char *stack = nullptr;
80 char *stackTop = nullptr;
81
82 stack = (char *)mmap(nullptr, STACK_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
83 ASSERT_NE(stack, MAP_FAILED);
84
85 stackTop = stack + STACK_SIZE;
86 ret = access(ACCESS_FILE_NAME, F_OK);
87 ASSERT_EQ(ret, 0);
88
89 auto pid = clone(ChildFunc, stackTop, 0, &arg);
90 ASSERT_NE(pid, -1);
91
92 ret = waitpid(pid, &status, 0);
93 ASSERT_EQ(ret, pid);
94
95 ret = WIFEXITED(status);
96 ASSERT_NE(ret, 0);
97
98 ret = WEXITSTATUS(status);
99 ASSERT_EQ(ret, 0);
100
101 ret = access(ACCESS_FILE_NAME, F_OK);
102 ASSERT_EQ(ret, 0);
103 }
104