78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
|
// Copyright 2018 Google LLC
|
||
|
//
|
||
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
// you may not use this file except in compliance with the License.
|
||
|
// You may obtain a copy of the License at
|
||
|
//
|
||
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
//
|
||
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
// See the License for the specific language governing permissions and
|
||
|
// limitations under the License.
|
||
|
|
||
|
#include <fcntl.h>
|
||
|
#include <sys/socket.h>
|
||
|
#include <sys/stat.h>
|
||
|
#include <sys/types.h>
|
||
|
#include <sys/un.h>
|
||
|
|
||
|
#include "gtest/gtest.h"
|
||
|
#include "test/util/capability_util.h"
|
||
|
#include "test/util/temp_path.h"
|
||
|
#include "test/util/test_util.h"
|
||
|
|
||
|
namespace gvisor {
|
||
|
namespace testing {
|
||
|
|
||
|
namespace {
|
||
|
|
||
|
TEST(FchdirTest, Success) {
|
||
|
auto temp_dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
|
||
|
int fd;
|
||
|
ASSERT_THAT(fd = open(temp_dir.path().c_str(), O_DIRECTORY | O_RDONLY),
|
||
|
SyscallSucceeds());
|
||
|
|
||
|
EXPECT_THAT(fchdir(fd), SyscallSucceeds());
|
||
|
EXPECT_THAT(close(fd), SyscallSucceeds());
|
||
|
// Change CWD to a permanent location as temp dirs will be cleaned up.
|
||
|
EXPECT_THAT(chdir("/"), SyscallSucceeds());
|
||
|
}
|
||
|
|
||
|
TEST(FchdirTest, InvalidFD) {
|
||
|
EXPECT_THAT(fchdir(-1), SyscallFailsWithErrno(EBADF));
|
||
|
}
|
||
|
|
||
|
TEST(FchdirTest, PermissionDenied) {
|
||
|
// Drop capabilities that allow us to override directory permissions.
|
||
|
ASSERT_NO_ERRNO(SetCapability(CAP_DAC_OVERRIDE, false));
|
||
|
ASSERT_NO_ERRNO(SetCapability(CAP_DAC_READ_SEARCH, false));
|
||
|
|
||
|
auto temp_dir = ASSERT_NO_ERRNO_AND_VALUE(
|
||
|
TempPath::CreateDirWith(GetAbsoluteTestTmpdir(), 0666 /* mode */));
|
||
|
|
||
|
int fd;
|
||
|
ASSERT_THAT(fd = open(temp_dir.path().c_str(), O_DIRECTORY | O_RDONLY),
|
||
|
SyscallSucceeds());
|
||
|
|
||
|
EXPECT_THAT(fchdir(fd), SyscallFailsWithErrno(EACCES));
|
||
|
EXPECT_THAT(close(fd), SyscallSucceeds());
|
||
|
}
|
||
|
|
||
|
TEST(FchdirTest, NotDir) {
|
||
|
auto temp_file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile());
|
||
|
|
||
|
int fd;
|
||
|
ASSERT_THAT(fd = open(temp_file.path().c_str(), O_CREAT | O_RDONLY, 0777),
|
||
|
SyscallSucceeds());
|
||
|
|
||
|
EXPECT_THAT(fchdir(fd), SyscallFailsWithErrno(ENOTDIR));
|
||
|
EXPECT_THAT(close(fd), SyscallSucceeds());
|
||
|
}
|
||
|
|
||
|
} // namespace
|
||
|
|
||
|
} // namespace testing
|
||
|
} // namespace gvisor
|