feat: 支持setns接口

BREAKING CHANGE:
支持setns接口对外变更:
1.新增setns接口

Close #I6D9Y0

Signed-off-by: zhushengle <zhushengle@huawei.com>
Change-Id: I9aacf9e5b8463e8e6c743a0041a5b2b18fdb0e12
This commit is contained in:
zhushengle
2023-02-07 13:42:25 +08:00
parent be50721826
commit 1ef64e26a1
40 changed files with 994 additions and 225 deletions

View File

@@ -65,6 +65,29 @@ pid_t CloneWrapper(int (*func)(void *), int flag, void *args)
return pid;
}
int WaitChild(pid_t pid, int *status, int errNo1, int errNo2)
{
int ret = waitpid(pid, status, 0);
if (ret != pid) {
printf("[ERR] WaitChild pid=%d return pid=%d\n", pid, ret);
return errNo1;
}
if (status == nullptr) {
return 0;
}
ret = WIFEXITED(*status);
if (ret == 0) {
printf("[ERR] WaitChild pid=%d WIFEXITED(status)=%d\n", pid, WIFEXITED(*status));
return errNo2;
}
ret = WEXITSTATUS(*status);
if (ret != 0) {
printf("[ERR] WaitChild pid=%d WEXITSTATUS(status)=%d\n", pid, WEXITSTATUS(*status));
return errNo2;
}
return 0;
}
std::string GenContainerLinkPath(int pid, const std::string& containerType)
{
std::ostringstream buf;
@@ -186,6 +209,18 @@ HWTEST_F(ContainerTest, ItPidContainer030, TestSize.Level0)
{
ItPidContainer030();
}
/**
* @tc.name: Container_Pid_Test_031
* @tc.desc: pid container function test case
* @tc.type: FUNC
* @tc.require: issueI6D9Y0
* @tc.author:
*/
HWTEST_F(ContainerTest, ItPidContainer031, TestSize.Level0)
{
ItPidContainer031();
}
#endif
#if defined(LOSCFG_USER_TEST_UTS_CONTAINER)
/**
@@ -223,6 +258,30 @@ HWTEST_F(ContainerTest, ItUtsContainer004, TestSize.Level0)
{
ItUtsContainer004();
}
/**
* @tc.name: Container_UTS_Test_005
* @tc.desc: uts container function test case
* @tc.type: FUNC
* @tc.require: issueI6D9Y0
* @tc.author:
*/
HWTEST_F(ContainerTest, ItUtsContainer005, TestSize.Level0)
{
ItUtsContainer005();
}
/**
* @tc.name: Container_UTS_Test_006
* @tc.desc: uts container function test case
* @tc.type: FUNC
* @tc.require: issueI6D9Y0
* @tc.author:
*/
HWTEST_F(ContainerTest, ItUtsContainer006, TestSize.Level0)
{
ItUtsContainer006();
}
#endif
#if defined(LOSCFG_USER_TEST_MNT_CONTAINER)
@@ -310,6 +369,18 @@ HWTEST_F(ContainerTest, ItMntContainer007, TestSize.Level0)
ItMntContainer007();
}
/**
* @tc.name: Container_MNT_Test_008
* @tc.desc: mnt container function test case
* @tc.type: FUNC
* @tc.require: issueI6D9Y0
* @tc.author:
*/
HWTEST_F(ContainerTest, ItMntContainer008, TestSize.Level0)
{
ItMntContainer008();
}
/**
* @tc.name: chroot_Test_001
* @tc.desc: chroot function test case
@@ -348,6 +419,18 @@ HWTEST_F(ContainerTest, ItIpcContainer001, TestSize.Level0)
ItIpcContainer001();
}
/**
* @tc.name: Container_IPC_Test_002
* @tc.desc: ipc container function test case
* @tc.type: FUNC
* @tc.require: issueI6D9Y0
* @tc.author:
*/
HWTEST_F(ContainerTest, ItIpcContainer002, TestSize.Level0)
{
ItIpcContainer002();
}
/**
* @tc.name: Container_IPC_Test_003
* @tc.desc: ipc container function test case
@@ -383,6 +466,18 @@ HWTEST_F(ContainerTest, ItIpcContainer005, TestSize.Level0)
{
ItIpcContainer005();
}
/**
* @tc.name: Container_IPC_Test_006
* @tc.desc: ipc container function test case
* @tc.type: FUNC
* @tc.require: issueI6D9Y0
* @tc.author:
*/
HWTEST_F(ContainerTest, ItIpcContainer006, TestSize.Level0)
{
ItIpcContainer006();
}
#endif
#if defined(LOSCFG_USER_TEST_TIME_CONTAINER)
@@ -410,6 +505,18 @@ HWTEST_F(ContainerTest, ItTimeContainer002, TestSize.Level0)
ItTimeContainer002();
}
/**
* @tc.name: Container_TIME_Test_003
* @tc.desc: time container function test case
* @tc.type: FUNC
* @tc.require: issueI6D9Y0
* @tc.author:
*/
HWTEST_F(ContainerTest, ItTimeContainer003, TestSize.Level0)
{
ItTimeContainer003();
}
/**
* @tc.name: Container_TIME_Test_004
* @tc.desc: time container function test case

View File

@@ -95,6 +95,8 @@ int ChildFunction(void *args);
pid_t CloneWrapper(int (*func)(void *), int flag, void *args);
int WaitChild(pid_t pid, int *status, int errNo1, int errNo2);
std::string GenContainerLinkPath(int pid, const std::string& containerType);
extern std::string ReadlinkContainer(int pid, const std::string& containerType);
@@ -147,11 +149,14 @@ void ItPidContainer027(void);
void ItPidContainer028(void);
void ItPidContainer029(void);
void ItPidContainer030(void);
void ItPidContainer031(void);
#endif
#if defined(LOSCFG_USER_TEST_UTS_CONTAINER)
void ItUtsContainer001(void);
void ItUtsContainer002(void);
void ItUtsContainer004(void);
void ItUtsContainer005(void);
void ItUtsContainer006(void);
#endif
#if defined(LOSCFG_USER_TEST_MNT_CONTAINER)
void ItMntContainer001(void);

View File

@@ -49,6 +49,7 @@ if (defined(LOSCFG_USER_TEST_PID_CONTAINER)) {
"$TEST_UNITTEST_DIR/container/smoke/It_pid_container_028.cpp",
"$TEST_UNITTEST_DIR/container/smoke/It_pid_container_029.cpp",
"$TEST_UNITTEST_DIR/container/smoke/It_pid_container_030.cpp",
"$TEST_UNITTEST_DIR/container/smoke/It_pid_container_031.cpp",
]
sources_full += [
"$TEST_UNITTEST_DIR/container/full/It_pid_container_001.cpp",
@@ -81,6 +82,8 @@ if (defined(LOSCFG_USER_TEST_UTS_CONTAINER)) {
"$TEST_UNITTEST_DIR/container/smoke/It_uts_container_001.cpp",
"$TEST_UNITTEST_DIR/container/smoke/It_uts_container_002.cpp",
"$TEST_UNITTEST_DIR/container/smoke/It_uts_container_004.cpp",
"$TEST_UNITTEST_DIR/container/smoke/It_uts_container_005.cpp",
"$TEST_UNITTEST_DIR/container/smoke/It_uts_container_006.cpp",
]
sources_full +=
[ "$TEST_UNITTEST_DIR/container/full/It_uts_container_003.cpp" ]

View File

@@ -35,6 +35,7 @@ static int ChildFun(void *p)
int ret;
int currGid = getpgrp();
if (currGid != CONTAINER_FIRST_PID) {
printf("ChildFun pid %d currGid %d\n", getpid(), currGid);
return EXIT_CODE_ERRNO_1;
}

View File

@@ -118,6 +118,12 @@ void ItIpcContainer002(void)
ret = mq_send(mqueue, msgptr, strlen(msgptr), 0);
ASSERT_EQ(ret, 0);
ret = mq_close(mqueue);
ASSERT_EQ(ret, 0);
ret = mq_unlink(mqname);
ASSERT_EQ(ret, 0);
childPid = clone(childFunc, stackTop, CLONE_NEWIPC | SIGCHLD, &arg);
ASSERT_NE(childPid, -1);

View File

@@ -100,7 +100,7 @@ static int ChildFunClone1(void *p)
if (pstk == NULL) {
return EXIT_CODE_ERRNO_4;
}
int childPid = clone(ChildFunClone2, (char *)pstk + STACK_SIZE, CLONE_NEWPID | SIGCHLD, NULL);
int childPid = clone(ChildFunClone2, (char *)pstk + STACK_SIZE, SIGCHLD, NULL);
free(pstk);
if (childPid == -1) {
return EXIT_CODE_ERRNO_5;

View File

@@ -79,12 +79,12 @@ static int ChildFunClone1(void *p)
return EXIT_CODE_ERRNO_4;
}
int childPid = clone(ChildFunClone2, (char *)pstk + STACK_SIZE, CLONE_NEWPID | SIGCHLD, NULL);
if (childPid == -1) {
if (childPid != -1) {
free(pstk);
return EXIT_CODE_ERRNO_5;
}
int childPid1 = clone(ChildFunClone3, (char *)pstk + STACK_SIZE, CLONE_NEWPID | SIGCHLD, NULL);
int childPid1 = clone(ChildFunClone3, (char *)pstk + STACK_SIZE, SIGCHLD, NULL);
free(pstk);
if (childPid1 == -1) {
return EXIT_CODE_ERRNO_6;
@@ -95,18 +95,6 @@ static int ChildFunClone1(void *p)
return EXIT_CODE_ERRNO_7;
}
ret = waitpid(childPid, &status, 0);
if (ret != childPid) {
return EXIT_CODE_ERRNO_8;
}
ret = WIFEXITED(status);
if (ret == 0) {
return EXIT_CODE_ERRNO_9;
}
ret = WEXITSTATUS(status);
if (ret != 0) {
return EXIT_CODE_ERRNO_10;
}
ret = waitpid(childPid1, &status, 0);
if (ret != childPid1) {
return EXIT_CODE_ERRNO_11;

View File

@@ -33,9 +33,10 @@ static int ChildFunClone3(void *p)
{
(void)p;
auto pid = getpid();
if (pid == CONTAINER_SECOND_PID) {
if (pid != CONTAINER_SECOND_PID) {
return EXIT_CODE_ERRNO_1;
}
sleep(2); /* dealy 2s */
return 0;
}
@@ -46,14 +47,14 @@ static int ChildFunClone2(void *p)
if (pid != CONTAINER_FIRST_PID) {
return EXIT_CODE_ERRNO_1;
}
sleep(2); /* dealy 2s */
return 0;
}
static int ChildFunClone1(void *p)
{
(void)p;
int ret;
int status;
int ret, status;
const char *containerType = "pid";
const char *containerType1 = "pid_for_children";
@@ -78,46 +79,39 @@ static int ChildFunClone1(void *p)
if (pstk == NULL) {
return EXIT_CODE_ERRNO_4;
}
int childPid = clone(ChildFunClone2, (char *)pstk + STACK_SIZE, CLONE_NEWPID | SIGCHLD, NULL);
int childPid = clone(ChildFunClone2, (char *)pstk + STACK_SIZE, SIGCHLD, NULL);
if (childPid == -1) {
free(pstk);
return EXIT_CODE_ERRNO_5;
}
auto linkBuffer2 = ReadlinkContainer(childPid, containerType);
int childPid1 = clone(ChildFunClone3, (char *)pstk + STACK_SIZE, SIGCHLD, NULL);
free(pstk);
if (childPid1 == -1) {
return EXIT_CODE_ERRNO_6;
}
ret = unshare(CLONE_NEWPID);
if (ret != -1) {
auto linkBuffer3 = ReadlinkContainer(childPid1, containerType);
ret = linkBuffer3.compare(linkBuffer2);
if (ret != 0) {
return EXIT_CODE_ERRNO_7;
}
ret = waitpid(childPid, &status, 0);
if (ret != childPid) {
ret = unshare(CLONE_NEWPID);
if (ret != -1) {
return EXIT_CODE_ERRNO_8;
}
ret = WIFEXITED(status);
if (ret == 0) {
return EXIT_CODE_ERRNO_9;
}
ret = WEXITSTATUS(status);
ret = WaitChild(childPid1, &status, EXIT_CODE_ERRNO_9, EXIT_CODE_ERRNO_10);
if (ret != 0) {
return EXIT_CODE_ERRNO_10;
return ret;
}
ret = waitpid(childPid1, &status, 0);
if (ret != childPid1) {
return EXIT_CODE_ERRNO_11;
}
ret = WIFEXITED(status);
if (ret == 0) {
return EXIT_CODE_ERRNO_12;
}
ret = WEXITSTATUS(status);
ret = WaitChild(childPid, &status, EXIT_CODE_ERRNO_11, EXIT_CODE_ERRNO_12);
if (ret != 0) {
return EXIT_CODE_ERRNO_13;
return ret;
}
return 0;
}

View File

@@ -0,0 +1,146 @@
/*
* Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "It_container_test.h"
static const int BUF_SIZE = 100;
static int ChildFun2(void *p)
{
(void)p;
sleep(3); /* 3: delay 3s */
return 0;
}
static int ChildFun1(void *p)
{
(void)p;
sleep(6); /* 6: delay 6s */
return 0;
}
static int ChildFun(void *p)
{
(void)p;
int status, ret;
const char *containerType = "pid";
const char *containerType1 = "pid_for_children";
char targetpath[BUF_SIZE] = {0};
auto linkBuffer1 = ReadlinkContainer(getpid(), containerType);
int childPid = clone(ChildFun1, NULL, CLONE_NEWPID | SIGCHLD, NULL);
if (childPid == -1) {
return EXIT_CODE_ERRNO_1;
}
auto linkBuffer2 = ReadlinkContainer(childPid, containerType);
ret = linkBuffer2.compare(linkBuffer1);
if (ret == 0) {
return EXIT_CODE_ERRNO_2;
}
ret = sprintf_s(targetpath, BUF_SIZE, "/proc/%d/container/pid", childPid);
if (ret < 0) {
return EXIT_CODE_ERRNO_16;
}
int fd = open(targetpath, O_RDONLY | O_CLOEXEC);
if (fd == -1) {
return EXIT_CODE_ERRNO_3;
}
ret = setns(fd, CLONE_NEWPID);
if (ret != 0) {
close(fd);
return EXIT_CODE_ERRNO_4;
}
close(fd);
auto linkBuffer6 = ReadlinkContainer(getpid(), containerType);
ret = linkBuffer6.compare(linkBuffer1);
if (ret != 0) {
return EXIT_CODE_ERRNO_17;
}
auto linkBuffer3 = ReadlinkContainer(getpid(), containerType1);
ret = linkBuffer3.compare(linkBuffer2);
if (ret != 0) {
return EXIT_CODE_ERRNO_5;
}
int childPid1 = clone(ChildFun2, NULL, SIGCHLD, NULL);
if (childPid1 == -1) {
return EXIT_CODE_ERRNO_6;
}
auto linkBuffer4 = ReadlinkContainer(childPid1, containerType);
ret = linkBuffer4.compare(linkBuffer3);
if (ret != 0) {
return EXIT_CODE_ERRNO_7;
}
int childPid2 = clone(ChildFun2, NULL, CLONE_NEWUTS | SIGCHLD, NULL);
if (childPid2 == -1) {
return EXIT_CODE_ERRNO_8;
}
auto linkBuffer5 = ReadlinkContainer(childPid2, containerType);
ret = linkBuffer5.compare(linkBuffer4);
if (ret != 0) {
return EXIT_CODE_ERRNO_9;
}
ret = WaitChild(childPid2, &status, EXIT_CODE_ERRNO_10, EXIT_CODE_ERRNO_11);
if (ret != 0) {
return ret;
}
ret = WaitChild(childPid1, &status, EXIT_CODE_ERRNO_12, EXIT_CODE_ERRNO_13);
if (ret != 0) {
return ret;
}
ret = WaitChild(childPid, &status, EXIT_CODE_ERRNO_14, EXIT_CODE_ERRNO_15);
if (ret != 0) {
return ret;
}
return 0;
}
void ItPidContainer031(void)
{
int status;
int childPid = clone(ChildFun, NULL, CLONE_NEWPID | SIGCHLD, NULL);
ASSERT_NE(childPid, -1);
int ret = waitpid(childPid, &status, 0);
ASSERT_EQ(ret, childPid);
ret = WIFEXITED(status);
ASSERT_NE(ret, 0);
ret = WEXITSTATUS(status);
ASSERT_EQ(ret, 0);
}

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@@ -0,0 +1,91 @@
/*
* Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "It_container_test.h"
const int TIMER_INTERVAL_3S = 2;
static int ChildFun(void *p)
{
(void)p;
sleep(TIMER_INTERVAL_3S);
return EXIT_CODE_ERRNO_3;
}
void ItUtsContainer005(void)
{
pid_t callerPid;
int childPid;
int fd = -1;
int ret;
int status;
int setFlag;
char targetpath[100];
char old_uts_link[100];
char new_uts_link[100];
const char *containerType = "uts";
callerPid = getpid();
childPid = clone(ChildFun, NULL, CLONE_NEWUTS | SIGCHLD, NULL);
ASSERT_NE(childPid, -1);
auto linkBuffer = ReadlinkContainer(callerPid, containerType);
ASSERT_TRUE(linkBuffer.c_str() != NULL);
ret = sprintf_s(old_uts_link, sizeof(old_uts_link), "%s", linkBuffer.c_str());
ASSERT_NE(ret, -1);
ret = sprintf_s(targetpath, sizeof(targetpath), "/proc/%d/container/uts", childPid);
ASSERT_NE(ret, -1);
fd = open(targetpath, O_RDONLY | O_CLOEXEC);
ASSERT_NE(fd, -1);
setFlag = CLONE_NEWUTS;
ret = setns(fd, setFlag);
ASSERT_NE(ret, -1);
/* NOTE: close fd, otherwise test fail */
ret = close(fd);
fd = -1;
ASSERT_NE(ret, -1);
linkBuffer = ReadlinkContainer(callerPid, containerType);
ret = sprintf_s(new_uts_link, sizeof(new_uts_link), "%s", linkBuffer.c_str());
ASSERT_NE(ret, -1);
ASSERT_STRNE(old_uts_link, new_uts_link);
ret = waitpid(childPid, &status, 0);
ASSERT_EQ(ret, childPid);
int exitCode = WEXITSTATUS(status);
ASSERT_EQ(exitCode, EXIT_CODE_ERRNO_3);
ret = setns(fd, setFlag);
ASSERT_EQ(ret, -1);
}

View File

@@ -0,0 +1,64 @@
/*
* Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "It_container_test.h"
void ItUtsContainer006(void)
{
std::string containerType = "uts";
int parentPid = getpid();
auto parentlink = ReadlinkContainer(parentPid, containerType);
int childsPid = CloneWrapper(ChildFunction, CLONE_NEWUTS, NULL);
ASSERT_NE(childsPid, -1);
auto childlink = ReadlinkContainer(childsPid, containerType);
std::string filePath = GenContainerLinkPath(childsPid, containerType);
int fd = open(filePath.c_str(), O_RDONLY);
ASSERT_NE(fd, -1);
int ret = setns(fd, CLONE_NEWUTS);
ASSERT_NE(ret, -1);
(void)close(fd);
auto parentlink1 = ReadlinkContainer(parentPid, containerType);
ret = parentlink.compare(parentlink1);
ASSERT_NE(ret, 0);
ret = parentlink1.compare(childlink);
ASSERT_EQ(ret, 0);
int status;
ret = waitpid(childsPid, &status, 0);
ASSERT_EQ(ret, childsPid);
int exitCode = WEXITSTATUS(status);
ASSERT_EQ(exitCode, 0);
}