89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
// Copyright 2020 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 <errno.h>
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#include <fcntl.h>
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#include <linux/fuse.h>
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#include <sys/stat.h>
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#include <sys/statfs.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <string>
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#include <vector>
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#include "gtest/gtest.h"
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#include "test/fuse/linux/fuse_base.h"
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#include "test/util/fuse_util.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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class SymlinkTest : public FuseTest {
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protected:
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const std::string target_file_ = "target_file_";
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const std::string symlink_ = "symlink_";
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const mode_t perms_ = S_IRWXU | S_IRWXG | S_IRWXO;
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};
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TEST_F(SymlinkTest, CreateSymLink) {
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const std::string symlink_path =
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JoinPath(mount_point_.path().c_str(), symlink_);
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struct fuse_out_header out_header = {
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.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_entry_out),
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};
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struct fuse_entry_out out_payload = DefaultEntryOut(S_IFLNK | perms_, 5);
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auto iov_out = FuseGenerateIovecs(out_header, out_payload);
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SetServerResponse(FUSE_SYMLINK, iov_out);
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ASSERT_THAT(symlink(target_file_.c_str(), symlink_path.c_str()),
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SyscallSucceeds());
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struct fuse_in_header in_header;
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std::vector<char> actual_target_file(target_file_.length() + 1);
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std::vector<char> actual_symlink(symlink_.length() + 1);
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auto iov_in =
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FuseGenerateIovecs(in_header, actual_symlink, actual_target_file);
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GetServerActualRequest(iov_in);
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EXPECT_EQ(in_header.len,
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sizeof(in_header) + symlink_.length() + target_file_.length() + 2);
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EXPECT_EQ(in_header.opcode, FUSE_SYMLINK);
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EXPECT_EQ(std::string(actual_target_file.data()), target_file_);
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EXPECT_EQ(std::string(actual_symlink.data()), symlink_);
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}
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TEST_F(SymlinkTest, FileTypeError) {
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const std::string symlink_path =
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JoinPath(mount_point_.path().c_str(), symlink_);
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struct fuse_out_header out_header = {
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.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_entry_out),
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};
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struct fuse_entry_out out_payload = DefaultEntryOut(S_IFREG | perms_, 5);
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auto iov_out = FuseGenerateIovecs(out_header, out_payload);
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SetServerResponse(FUSE_SYMLINK, iov_out);
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ASSERT_THAT(symlink(target_file_.c_str(), symlink_path.c_str()),
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SyscallFailsWithErrno(EIO));
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SkipServerActualRequest();
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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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