54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
// Copyright 2021 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 <sys/mount.h>
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#include <iomanip>
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#include <sstream>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "test/util/capability_util.h"
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#include "test/util/temp_path.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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// Mount verity file system on an existing gofer mount.
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TEST(MountTest, MountExisting) {
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// Verity is implemented in VFS2.
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SKIP_IF(IsRunningWithVFS1());
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SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_SYS_ADMIN)));
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// Mount a new tmpfs file system.
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auto const tmpfs_dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
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ASSERT_THAT(mount("", tmpfs_dir.path().c_str(), "tmpfs", 0, ""),
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SyscallSucceeds());
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// Mount a verity file system on the existing gofer mount.
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auto const verity_dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
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std::string opts = "lower_path=" + tmpfs_dir.path();
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EXPECT_THAT(mount("", verity_dir.path().c_str(), "verity", 0, opts.c_str()),
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SyscallSucceeds());
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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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