mirror of
https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
Jing Chen
77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
// Copyright 2023 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <sched.h>
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#include <cstdint>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "test/util/file_descriptor.h"
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#include "test/util/linux_capability_util.h"
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#include "test/util/posix_error.h"
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#include "test/util/test_util.h"
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namespace gvisor {
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namespace testing {
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namespace {
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TEST(SetnsTest, ChangeIPCNamespace) {
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SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_SYS_ADMIN)));
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struct stat st;
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uint64_t ipcns1, ipcns2, ipcns3;
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const FileDescriptor nsfd =
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ASSERT_NO_ERRNO_AND_VALUE(Open("/proc/thread-self/ns/ipc", O_RDONLY));
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ASSERT_THAT(stat("/proc/thread-self/ns/ipc", &st), SyscallSucceeds());
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ipcns1 = st.st_ino;
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// Use unshare(CLONE_NEWIPC) to change into a new IPC namespace.
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ASSERT_THAT(unshare(CLONE_NEWIPC), SyscallSucceedsWithValue(0));
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ASSERT_THAT(stat("/proc/thread-self/ns/ipc", &st), SyscallSucceeds());
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ipcns2 = st.st_ino;
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ASSERT_NE(ipcns1, ipcns2);
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ASSERT_THAT(setns(nsfd.get(), CLONE_NEWIPC), SyscallSucceedsWithValue(0));
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ASSERT_THAT(stat("/proc/thread-self/ns/ipc", &st), SyscallSucceeds());
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ipcns3 = st.st_ino;
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EXPECT_EQ(ipcns1, ipcns3);
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}
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TEST(SetnsTest, ChangeUTSNamespace) {
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SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_SYS_ADMIN)));
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struct stat st;
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uint64_t utsns1, utsns2, utsns3;
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const FileDescriptor nsfd =
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ASSERT_NO_ERRNO_AND_VALUE(Open("/proc/thread-self/ns/uts", O_RDONLY));
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ASSERT_THAT(stat("/proc/thread-self/ns/uts", &st), SyscallSucceeds());
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utsns1 = st.st_ino;
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// Use unshare(CLONE_NEWUTS) to change into a new UTS namespace.
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ASSERT_THAT(unshare(CLONE_NEWUTS), SyscallSucceedsWithValue(0));
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ASSERT_THAT(stat("/proc/thread-self/ns/uts", &st), SyscallSucceeds());
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utsns2 = st.st_ino;
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ASSERT_NE(utsns1, utsns2);
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ASSERT_THAT(setns(nsfd.get(), CLONE_NEWUTS), SyscallSucceedsWithValue(0));
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ASSERT_THAT(stat("/proc/thread-self/ns/uts", &st), SyscallSucceeds());
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utsns3 = st.st_ino;
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EXPECT_EQ(utsns1, utsns3);
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}
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} // namespace
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} // namespace testing
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} // namespace gvisor
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