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
ChildFun(void *p)32 static int ChildFun(void *p)
33 {
34 (void)p;
35 return getpid();
36 }
37
ChildFunClone3(void *p)38 static int ChildFunClone3(void *p)
39 {
40 (void)p;
41 int childPid;
42 int status;
43 int ret;
44 pid_t pid = getpid();
45 int childFunRet = (int)pid;
46 void *pstk = malloc(STACK_SIZE);
47 if (pstk == NULL) {
48 return EXIT_CODE_ERRNO_1;
49 }
50 pid_t parent_pid = getppid();
51 if (parent_pid != CONTAINER_FIRST_PID) {
52 free(pstk);
53 return EXIT_CODE_ERRNO_3;
54 }
55
56 childPid = clone(ChildFun, (char *)pstk + STACK_SIZE, SIGCHLD, NULL);
57 free(pstk);
58 if (childPid == -1) {
59 return EXIT_CODE_ERRNO_4;
60 }
61
62 ret = waitpid(childPid, &status, 0);
63 if (ret != childPid) {
64 return EXIT_CODE_ERRNO_5;
65 }
66 ret = WIFEXITED(status);
67 if (ret == 0) {
68 return EXIT_CODE_ERRNO_6;
69 }
70 ret = WEXITSTATUS(status);
71 if (ret != CONTAINER_THIRD_PID) {
72 return EXIT_CODE_ERRNO_7;
73 }
74 return childFunRet;
75 }
76
ChildFunClone2(void *p)77 static int ChildFunClone2(void *p)
78 {
79 (void)p;
80 int status;
81 int ret;
82 pid_t pid = getpid();
83 int childFunRet = (int)pid;
84 void *pstk = malloc(STACK_SIZE);
85 if (pstk == NULL) {
86 return EXIT_CODE_ERRNO_2;
87 }
88 int childPid = clone(ChildFunClone3, (char *)pstk + STACK_SIZE, SIGCHLD, NULL);
89 if (childPid == -1) {
90 free(pstk);
91 return EXIT_CODE_ERRNO_3;
92 }
93
94 ret = wait(&status);
95 ret = WIFEXITED(status);
96 ret = WEXITSTATUS(status);
97 if (ret != CONTAINER_SECOND_PID) {
98 free(pstk);
99 return EXIT_CODE_ERRNO_4;
100 }
101
102 free(pstk);
103 return childFunRet;
104 }
105
ChildFunClone1(void *p)106 static int ChildFunClone1(void *p)
107 {
108 (void)p;
109 int status;
110 int ret;
111 pid_t pid = getpid();
112 int childFunRet = (int)pid;
113 char *containerType = "pid";
114 int childPid = clone(ChildFunClone2, NULL, CLONE_NEWPID | SIGCHLD, NULL);
115 if (childPid == -1) {
116 return EXIT_CODE_ERRNO_3;
117 }
118
119 auto linkBuffer = ReadlinkContainer(childPid, containerType);
120 auto linkBuffer1 = ReadlinkContainer(getpid(), containerType);
121 ret = linkBuffer.compare(linkBuffer1);
122 if (ret == 0) {
123 (void)waitpid(childPid, &status, 0);
124 return EXIT_CODE_ERRNO_5;
125 }
126
127 ret = waitpid(childPid, &status, 0);
128 ret = WIFEXITED(status);
129 ret = WEXITSTATUS(status);
130 if (ret != CONTAINER_FIRST_PID) {
131 return EXIT_CODE_ERRNO_4;
132 }
133 return childFunRet;
134 }
135
ItPidContainer002(void)136 void ItPidContainer002(void)
137 {
138 int status;
139 int ret;
140 void *pstk = malloc(STACK_SIZE);
141 ASSERT_TRUE(pstk != NULL);
142 int childPid = clone(ChildFunClone1, (char *)pstk + STACK_SIZE, CLONE_NEWPID | SIGCHLD, NULL);
143 free(pstk);
144 ASSERT_NE(childPid, -1);
145
146 ret = waitpid(childPid, &status, 0);
147 ASSERT_EQ(ret, childPid);
148 ret = WIFEXITED(status);
149 ASSERT_NE(ret, 0);
150 ret = WEXITSTATUS(status);
151 ASSERT_EQ(ret, CONTAINER_FIRST_PID);
152 }
153