129 lines
4.0 KiB
C++
129 lines
4.0 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 "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 OpenTest : public FuseTest {
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// OpenTest doesn't care the release request when close a fd,
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// so doesn't check leftover requests when tearing down.
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void TearDown() { UnmountFuse(); }
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protected:
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const std::string test_file_ = "test_file";
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const mode_t regular_file_ = S_IFREG | S_IRWXU | S_IRWXG | S_IRWXO;
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struct fuse_open_out out_payload_ = {
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.fh = 1,
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.open_flags = O_RDWR,
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};
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};
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TEST_F(OpenTest, RegularFile) {
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const std::string test_file_path =
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JoinPath(mount_point_.path().c_str(), test_file_);
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SetServerInodeLookup(test_file_, regular_file_);
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struct fuse_out_header out_header = {
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.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_open_out),
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};
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auto iov_out = FuseGenerateIovecs(out_header, out_payload_);
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SetServerResponse(FUSE_OPEN, iov_out);
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FileDescriptor fd =
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ASSERT_NO_ERRNO_AND_VALUE(Open(test_file_path.c_str(), O_RDWR));
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struct fuse_in_header in_header;
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struct fuse_open_in in_payload;
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auto iov_in = FuseGenerateIovecs(in_header, in_payload);
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GetServerActualRequest(iov_in);
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EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
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EXPECT_EQ(in_header.opcode, FUSE_OPEN);
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EXPECT_EQ(in_payload.flags, O_RDWR);
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EXPECT_THAT(fcntl(fd.get(), F_GETFL), SyscallSucceedsWithValue(O_RDWR));
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}
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TEST_F(OpenTest, SetNoOpen) {
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const std::string test_file_path =
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JoinPath(mount_point_.path().c_str(), test_file_);
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SetServerInodeLookup(test_file_, regular_file_);
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// ENOSYS indicates open is not implemented.
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struct fuse_out_header out_header = {
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.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_open_out),
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.error = -ENOSYS,
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};
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auto iov_out = FuseGenerateIovecs(out_header, out_payload_);
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SetServerResponse(FUSE_OPEN, iov_out);
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ASSERT_NO_ERRNO_AND_VALUE(Open(test_file_path.c_str(), O_RDWR));
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SkipServerActualRequest();
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// check open doesn't send new request.
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uint32_t recieved_before = GetServerTotalReceivedBytes();
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ASSERT_NO_ERRNO_AND_VALUE(Open(test_file_path.c_str(), O_RDWR));
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EXPECT_EQ(GetServerTotalReceivedBytes(), recieved_before);
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}
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TEST_F(OpenTest, OpenFail) {
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struct fuse_out_header out_header = {
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.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_open_out),
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.error = -ENOENT,
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};
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auto iov_out = FuseGenerateIovecs(out_header, out_payload_);
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SetServerResponse(FUSE_OPENDIR, iov_out);
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ASSERT_THAT(open(mount_point_.path().c_str(), O_RDWR),
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SyscallFailsWithErrno(ENOENT));
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struct fuse_in_header in_header;
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struct fuse_open_in in_payload;
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auto iov_in = FuseGenerateIovecs(in_header, in_payload);
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GetServerActualRequest(iov_in);
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EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
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EXPECT_EQ(in_header.opcode, FUSE_OPENDIR);
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EXPECT_EQ(in_payload.flags, O_RDWR);
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}
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TEST_F(OpenTest, DirectoryFlagOnRegularFile) {
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const std::string test_file_path =
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JoinPath(mount_point_.path().c_str(), test_file_);
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SetServerInodeLookup(test_file_, regular_file_);
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ASSERT_THAT(open(test_file_path.c_str(), O_RDWR | O_DIRECTORY),
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SyscallFailsWithErrno(ENOTDIR));
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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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