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-rw-r--r--test/syscalls/linux/unlink.cc228
1 files changed, 0 insertions, 228 deletions
diff --git a/test/syscalls/linux/unlink.cc b/test/syscalls/linux/unlink.cc
deleted file mode 100644
index 061e2e0f1..000000000
--- a/test/syscalls/linux/unlink.cc
+++ /dev/null
@@ -1,228 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// 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 <errno.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#include "gtest/gtest.h"
-#include "absl/strings/str_cat.h"
-#include "test/util/capability_util.h"
-#include "test/util/file_descriptor.h"
-#include "test/util/fs_util.h"
-#include "test/util/temp_path.h"
-#include "test/util/test_util.h"
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-TEST(UnlinkTest, IsDir) {
- auto dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
-
- EXPECT_THAT(unlink(dir.path().c_str()), SyscallFailsWithErrno(EISDIR));
-}
-
-TEST(UnlinkTest, DirNotEmpty) {
- auto dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
-
- int fd;
- std::string path = JoinPath(dir.path(), "ExistingFile");
- EXPECT_THAT(fd = open(path.c_str(), O_RDWR | O_CREAT, 0666),
- SyscallSucceeds());
- EXPECT_THAT(close(fd), SyscallSucceeds());
- EXPECT_THAT(rmdir(dir.path().c_str()), SyscallFailsWithErrno(ENOTEMPTY));
-}
-
-TEST(UnlinkTest, Rmdir) {
- auto dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
- EXPECT_THAT(rmdir(dir.path().c_str()), SyscallSucceeds());
-}
-
-TEST(UnlinkTest, AtDir) {
- int dirfd;
- auto tmpdir = GetAbsoluteTestTmpdir();
- EXPECT_THAT(dirfd = open(tmpdir.c_str(), O_DIRECTORY, 0), SyscallSucceeds());
-
- auto dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDirIn(tmpdir));
- auto dir_relpath =
- ASSERT_NO_ERRNO_AND_VALUE(GetRelativePath(tmpdir, dir.path()));
- EXPECT_THAT(unlinkat(dirfd, dir_relpath.c_str(), AT_REMOVEDIR),
- SyscallSucceeds());
- ASSERT_THAT(close(dirfd), SyscallSucceeds());
-}
-
-TEST(UnlinkTest, AtDirDegradedPermissions_NoRandomSave) {
- // Drop capabilities that allow us to override file and directory permissions.
- ASSERT_NO_ERRNO(SetCapability(CAP_DAC_OVERRIDE, false));
- ASSERT_NO_ERRNO(SetCapability(CAP_DAC_READ_SEARCH, false));
-
- auto dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
-
- int dirfd;
- ASSERT_THAT(dirfd = open(dir.path().c_str(), O_DIRECTORY, 0),
- SyscallSucceeds());
-
- std::string sub_dir = JoinPath(dir.path(), "NewDir");
- EXPECT_THAT(mkdir(sub_dir.c_str(), 0755), SyscallSucceeds());
- EXPECT_THAT(fchmod(dirfd, 0444), SyscallSucceeds());
- EXPECT_THAT(unlinkat(dirfd, "NewDir", AT_REMOVEDIR),
- SyscallFailsWithErrno(EACCES));
- ASSERT_THAT(close(dirfd), SyscallSucceeds());
-}
-
-// Files cannot be unlinked if the parent is not writable and executable.
-TEST(UnlinkTest, ParentDegradedPermissions) {
- // Drop capabilities that allow us to override file and directory permissions.
- ASSERT_NO_ERRNO(SetCapability(CAP_DAC_OVERRIDE, false));
- ASSERT_NO_ERRNO(SetCapability(CAP_DAC_READ_SEARCH, false));
-
- auto dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
- auto file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileIn(dir.path()));
-
- ASSERT_THAT(chmod(dir.path().c_str(), 0000), SyscallSucceeds());
-
- struct stat st;
- ASSERT_THAT(stat(file.path().c_str(), &st), SyscallFailsWithErrno(EACCES));
- ASSERT_THAT(unlinkat(AT_FDCWD, file.path().c_str(), 0),
- SyscallFailsWithErrno(EACCES));
-
- // Non-existent files also return EACCES.
- const std::string nonexist = JoinPath(dir.path(), "doesnotexist");
- ASSERT_THAT(stat(nonexist.c_str(), &st), SyscallFailsWithErrno(EACCES));
- ASSERT_THAT(unlinkat(AT_FDCWD, nonexist.c_str(), 0),
- SyscallFailsWithErrno(EACCES));
-}
-
-TEST(UnlinkTest, AtBad) {
- int dirfd;
- EXPECT_THAT(dirfd = open(GetAbsoluteTestTmpdir().c_str(), O_DIRECTORY, 0),
- SyscallSucceeds());
-
- // Try removing a directory as a file.
- std::string path = JoinPath(GetAbsoluteTestTmpdir(), "NewDir");
- EXPECT_THAT(mkdir(path.c_str(), 0755), SyscallSucceeds());
- EXPECT_THAT(unlinkat(dirfd, "NewDir", 0), SyscallFailsWithErrno(EISDIR));
- EXPECT_THAT(unlinkat(dirfd, "NewDir", AT_REMOVEDIR), SyscallSucceeds());
-
- // Try removing a file as a directory.
- int fd;
- EXPECT_THAT(fd = openat(dirfd, "UnlinkAtFile", O_RDWR | O_CREAT, 0666),
- SyscallSucceeds());
- EXPECT_THAT(unlinkat(dirfd, "UnlinkAtFile", AT_REMOVEDIR),
- SyscallFailsWithErrno(ENOTDIR));
- EXPECT_THAT(unlinkat(dirfd, "UnlinkAtFile/", 0),
- SyscallFailsWithErrno(ENOTDIR));
- ASSERT_THAT(close(fd), SyscallSucceeds());
- EXPECT_THAT(unlinkat(dirfd, "UnlinkAtFile", 0), SyscallSucceeds());
-
- // Cleanup.
- ASSERT_THAT(close(dirfd), SyscallSucceeds());
-}
-
-TEST(UnlinkTest, AbsTmpFile) {
- int fd;
- std::string path = JoinPath(GetAbsoluteTestTmpdir(), "ExistingFile");
- EXPECT_THAT(fd = open(path.c_str(), O_RDWR | O_CREAT, 0666),
- SyscallSucceeds());
- EXPECT_THAT(close(fd), SyscallSucceeds());
- EXPECT_THAT(unlink(path.c_str()), SyscallSucceeds());
-}
-
-TEST(UnlinkTest, TooLongName) {
- EXPECT_THAT(unlink(std::vector<char>(16384, '0').data()),
- SyscallFailsWithErrno(ENAMETOOLONG));
-}
-
-TEST(UnlinkTest, BadNamePtr) {
- EXPECT_THAT(unlink(reinterpret_cast<char*>(1)),
- SyscallFailsWithErrno(EFAULT));
-}
-
-TEST(UnlinkTest, AtFile) {
- int dirfd;
- EXPECT_THAT(dirfd = open(GetAbsoluteTestTmpdir().c_str(), O_DIRECTORY, 0666),
- SyscallSucceeds());
- int fd;
- EXPECT_THAT(fd = openat(dirfd, "UnlinkAtFile", O_RDWR | O_CREAT, 0666),
- SyscallSucceeds());
- EXPECT_THAT(close(fd), SyscallSucceeds());
- EXPECT_THAT(unlinkat(dirfd, "UnlinkAtFile", 0), SyscallSucceeds());
-}
-
-TEST(UnlinkTest, OpenFile_NoRandomSave) {
- // We can't save unlinked file unless they are on tmpfs.
- const DisableSave ds;
- auto file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile());
- int fd;
- EXPECT_THAT(fd = open(file.path().c_str(), O_RDWR, 0666), SyscallSucceeds());
- EXPECT_THAT(unlink(file.path().c_str()), SyscallSucceeds());
- EXPECT_THAT(close(fd), SyscallSucceeds());
-}
-
-TEST(UnlinkTest, CannotRemoveDots) {
- auto file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFile());
- const std::string self = JoinPath(file.path(), ".");
- ASSERT_THAT(unlink(self.c_str()), SyscallFailsWithErrno(ENOTDIR));
- const std::string parent = JoinPath(file.path(), "..");
- ASSERT_THAT(unlink(parent.c_str()), SyscallFailsWithErrno(ENOTDIR));
-}
-
-TEST(UnlinkTest, CannotRemoveRoot) {
- ASSERT_THAT(unlinkat(-1, "/", AT_REMOVEDIR), SyscallFailsWithErrno(EBUSY));
-}
-
-TEST(UnlinkTest, CannotRemoveRootWithAtDir) {
- const FileDescriptor dirfd = ASSERT_NO_ERRNO_AND_VALUE(
- Open(GetAbsoluteTestTmpdir(), O_DIRECTORY, 0666));
- ASSERT_THAT(unlinkat(dirfd.get(), "/", AT_REMOVEDIR),
- SyscallFailsWithErrno(EBUSY));
-}
-
-TEST(RmdirTest, CannotRemoveDots) {
- auto dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
- const std::string self = JoinPath(dir.path(), ".");
- ASSERT_THAT(rmdir(self.c_str()), SyscallFailsWithErrno(EINVAL));
- const std::string parent = JoinPath(dir.path(), "..");
- ASSERT_THAT(rmdir(parent.c_str()), SyscallFailsWithErrno(ENOTEMPTY));
-}
-
-TEST(RmdirTest, CanRemoveWithTrailingSlashes) {
- auto dir1 = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
- const std::string slash = absl::StrCat(dir1.path(), "/");
- ASSERT_THAT(rmdir(slash.c_str()), SyscallSucceeds());
- auto dir2 = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
- const std::string slashslash = absl::StrCat(dir2.path(), "//");
- ASSERT_THAT(rmdir(slashslash.c_str()), SyscallSucceeds());
-}
-
-TEST(UnlinkTest, UnlinkAtEmptyPath) {
- auto dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
-
- auto file = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateFileIn(dir.path()));
- auto fd = ASSERT_NO_ERRNO_AND_VALUE(Open(file.path(), O_RDWR, 0666));
- EXPECT_THAT(unlinkat(fd.get(), "", 0), SyscallFailsWithErrno(ENOENT));
-
- auto dirInDir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDirIn(dir.path()));
- auto dirFD = ASSERT_NO_ERRNO_AND_VALUE(
- Open(dirInDir.path(), O_RDONLY | O_DIRECTORY, 0666));
- EXPECT_THAT(unlinkat(dirFD.get(), "", AT_REMOVEDIR),
- SyscallFailsWithErrno(ENOENT));
-}
-
-} // namespace
-
-} // namespace testing
-} // namespace gvisor
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 14:32:21 +0000