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
33 static const char testBuf[] = "test shm";
34 struct shared_use_st {
35 char test[SHM_TEST_DATA_SIZE];
36 };
37
childFunc(void *arg)38 static int childFunc(void *arg)
39 {
40 struct shared_use_st *shared = NULL;
41 int ret;
42 (void)arg;
43 char *containerType = "ipc";
44 auto linkBuffer = ReadlinkContainer(getpid(), containerType);
45
46 ret = unshare(CLONE_NEWIPC);
47 if (ret != 0) {
48 return EXIT_CODE_ERRNO_1;
49 }
50
51 auto linkBuffer1 = ReadlinkContainer(getpid(), containerType);
52 ret = linkBuffer.compare(linkBuffer1);
53 if (ret == 0) {
54 return EXIT_CODE_ERRNO_2;
55 }
56
57 int shmid = shmget((key_t)SHM_TEST_KEY1, sizeof(struct shared_use_st), SHM_TEST_OPEN_PERM | IPC_CREAT);
58 if (shmid == -1) {
59 return EXIT_CODE_ERRNO_3;
60 }
61
62 void *shm = shmat(shmid, 0, 0);
63 if (shm == reinterpret_cast<void *>(-1)) {
64 shmctl(shmid, IPC_RMID, 0);
65 return EXIT_CODE_ERRNO_4;
66 }
67
68 shared = (struct shared_use_st *)shm;
69 ret = strncmp(shared->test, testBuf, strlen(testBuf));
70 if (ret == 0) {
71 shmdt(shm);
72 shmctl(shmid, IPC_RMID, 0);
73 return EXIT_CODE_ERRNO_5;
74 }
75
76 ret = shmdt(shm);
77 if (ret == -1) {
78 shmctl(shmid, IPC_RMID, 0);
79 return EXIT_CODE_ERRNO_6;
80 }
81
82 ret = shmctl(shmid, IPC_RMID, 0);
83 if (ret == -1) {
84 return EXIT_CODE_ERRNO_7;
85 }
86 return 0;
87 }
88
testChild(void *arg)89 static int testChild(void *arg)
90 {
91 (void)arg;
92 int ret;
93 struct shared_use_st *shared = NULL;
94 int status;
95 int exitCode;
96 int pid;
97
98 char *stack = (char *)mmap(NULL, STACK_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK,
99 -1, 0);
100 if (stack == nullptr) {
101 return EXIT_CODE_ERRNO_17;
102 }
103 char *stackTop = stack + STACK_SIZE;
104
105 int shmid = shmget((key_t)SHM_TEST_KEY1, sizeof(struct shared_use_st), SHM_TEST_OPEN_PERM | IPC_CREAT);
106 if (shmid == -1) {
107 return EXIT_CODE_ERRNO_8;
108 }
109
110 void *shm = shmat(shmid, 0, 0);
111 if (shm == reinterpret_cast<void *>(-1)) {
112 shmctl(shmid, IPC_RMID, 0);
113 return EXIT_CODE_ERRNO_9;
114 }
115
116 shared = (struct shared_use_st *)shm;
117 ret = memcpy_s(shared->test, sizeof(struct shared_use_st), testBuf, sizeof(testBuf));
118 if (ret != 0) {
119 shmdt(shm);
120 shmctl(shmid, IPC_RMID, 0);
121 return EXIT_CODE_ERRNO_10;
122 }
123
124 pid = clone(childFunc, stackTop, SIGCHLD, &arg);
125 if (pid == -1) {
126 shmdt(shm);
127 shmctl(shmid, IPC_RMID, 0);
128 return EXIT_CODE_ERRNO_11;
129 }
130
131 ret = waitpid(pid, &status, 0);
132 if (ret != pid) {
133 shmdt(shm);
134 shmctl(shmid, IPC_RMID, 0);
135 return EXIT_CODE_ERRNO_12;
136 }
137
138 ret = WIFEXITED(status);
139 if (ret == 0) {
140 shmdt(shm);
141 shmctl(shmid, IPC_RMID, 0);
142 return EXIT_CODE_ERRNO_13;
143 }
144
145 exitCode = WEXITSTATUS(status);
146 if (exitCode != 0) {
147 shmdt(shm);
148 shmctl(shmid, IPC_RMID, 0);
149 return EXIT_CODE_ERRNO_14;
150 }
151
152 ret = shmdt(shm);
153 if (ret == -1) {
154 shmctl(shmid, IPC_RMID, 0);
155 return EXIT_CODE_ERRNO_15;
156 }
157
158 ret = shmctl(shmid, IPC_RMID, 0);
159 if (ret == -1) {
160 return EXIT_CODE_ERRNO_16;
161 }
162 return 0;
163 }
164
ItIpcContainer005(void)165 void ItIpcContainer005(void)
166 {
167 int ret;
168 int status;
169 char *stack = (char *)mmap(NULL, STACK_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK,
170 -1, 0);
171 ASSERT_NE(stack, nullptr);
172
173 char *stackTop = stack + STACK_SIZE;
174
175 int arg = CHILD_FUNC_ARG;
176 auto pid = clone(testChild, stackTop, CLONE_NEWIPC | SIGCHLD, &arg);
177 ASSERT_NE(pid, -1);
178
179 ret = waitpid(pid, &status, 0);
180 ASSERT_EQ(ret, pid);
181
182 ret = WIFEXITED(status);
183 ASSERT_NE(ret, 0);
184
185 int exitCode = WEXITSTATUS(status);
186 ASSERT_EQ(exitCode, 0);
187 }
188