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// Copyright 2020 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 <linux/fuse.h>
#include <sys/stat.h>
#include <sys/statfs.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
#include <utime.h>
#include <string>
#include <vector>
#include "gtest/gtest.h"
#include "test/fuse/linux/fuse_fd_util.h"
#include "test/util/cleanup.h"
#include "test/util/fs_util.h"
#include "test/util/fuse_util.h"
#include "test/util/test_util.h"
namespace gvisor {
namespace testing {
namespace {
class SetStatTest : public FuseFdTest {
public:
void SetUp() override {
FuseFdTest::SetUp();
test_dir_path_ = JoinPath(mount_point_.path(), test_dir_);
test_file_path_ = JoinPath(mount_point_.path(), test_file_);
}
protected:
const uint64_t fh = 23;
const std::string test_dir_ = "testdir";
const std::string test_file_ = "testfile";
const mode_t test_dir_mode_ = S_IFDIR | S_IRUSR | S_IWUSR | S_IXUSR;
const mode_t test_file_mode_ = S_IFREG | S_IRUSR | S_IWUSR | S_IXUSR;
std::string test_dir_path_;
std::string test_file_path_;
};
TEST_F(SetStatTest, ChmodDir) {
// Set up fixture.
SetServerInodeLookup(test_dir_, test_dir_mode_);
struct fuse_out_header out_header = {
.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_attr_out),
.error = 0,
};
mode_t set_mode = S_IRGRP | S_IWGRP | S_IXGRP;
struct fuse_attr_out out_payload = {
.attr = DefaultFuseAttr(set_mode, 2),
};
auto iov_out = FuseGenerateIovecs(out_header, out_payload);
SetServerResponse(FUSE_SETATTR, iov_out);
// Make syscall.
EXPECT_THAT(chmod(test_dir_path_.c_str(), set_mode), SyscallSucceeds());
// Check FUSE request.
struct fuse_in_header in_header;
struct fuse_setattr_in in_payload;
auto iov_in = FuseGenerateIovecs(in_header, in_payload);
GetServerActualRequest(iov_in);
EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
EXPECT_EQ(in_header.opcode, FUSE_SETATTR);
EXPECT_EQ(in_header.uid, 0);
EXPECT_EQ(in_header.gid, 0);
EXPECT_EQ(in_payload.valid, FATTR_MODE);
EXPECT_EQ(in_payload.mode, S_IFDIR | set_mode);
}
TEST_F(SetStatTest, ChownDir) {
// Set up fixture.
SetServerInodeLookup(test_dir_, test_dir_mode_);
struct fuse_out_header out_header = {
.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_attr_out),
.error = 0,
};
struct fuse_attr_out out_payload = {
.attr = DefaultFuseAttr(test_dir_mode_, 2),
};
auto iov_out = FuseGenerateIovecs(out_header, out_payload);
SetServerResponse(FUSE_SETATTR, iov_out);
// Make syscall.
EXPECT_THAT(chown(test_dir_path_.c_str(), 1025, 1025), SyscallSucceeds());
// Check FUSE request.
struct fuse_in_header in_header;
struct fuse_setattr_in in_payload;
auto iov_in = FuseGenerateIovecs(in_header, in_payload);
GetServerActualRequest(iov_in);
EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
EXPECT_EQ(in_header.opcode, FUSE_SETATTR);
EXPECT_EQ(in_header.uid, 0);
EXPECT_EQ(in_header.gid, 0);
EXPECT_EQ(in_payload.valid, FATTR_UID | FATTR_GID);
EXPECT_EQ(in_payload.uid, 1025);
EXPECT_EQ(in_payload.gid, 1025);
}
TEST_F(SetStatTest, TruncateFile) {
// Set up fixture.
SetServerInodeLookup(test_file_, test_file_mode_);
struct fuse_out_header out_header = {
.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_attr_out),
.error = 0,
};
struct fuse_attr_out out_payload = {
.attr = DefaultFuseAttr(S_IFREG | S_IRUSR | S_IWUSR, 2),
};
auto iov_out = FuseGenerateIovecs(out_header, out_payload);
SetServerResponse(FUSE_SETATTR, iov_out);
// Make syscall.
EXPECT_THAT(truncate(test_file_path_.c_str(), 321), SyscallSucceeds());
// Check FUSE request.
struct fuse_in_header in_header;
struct fuse_setattr_in in_payload;
auto iov_in = FuseGenerateIovecs(in_header, in_payload);
GetServerActualRequest(iov_in);
EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
EXPECT_EQ(in_header.opcode, FUSE_SETATTR);
EXPECT_EQ(in_header.uid, 0);
EXPECT_EQ(in_header.gid, 0);
EXPECT_EQ(in_payload.valid, FATTR_SIZE);
EXPECT_EQ(in_payload.size, 321);
}
TEST_F(SetStatTest, UtimeFile) {
// Set up fixture.
SetServerInodeLookup(test_file_, test_file_mode_);
struct fuse_out_header out_header = {
.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_attr_out),
.error = 0,
};
struct fuse_attr_out out_payload = {
.attr = DefaultFuseAttr(S_IFREG | S_IRUSR | S_IWUSR, 2),
};
auto iov_out = FuseGenerateIovecs(out_header, out_payload);
SetServerResponse(FUSE_SETATTR, iov_out);
// Make syscall.
time_t expected_atime = 1597159766, expected_mtime = 1597159765;
struct utimbuf times = {
.actime = expected_atime,
.modtime = expected_mtime,
};
EXPECT_THAT(utime(test_file_path_.c_str(), ×), SyscallSucceeds());
// Check FUSE request.
struct fuse_in_header in_header;
struct fuse_setattr_in in_payload;
auto iov_in = FuseGenerateIovecs(in_header, in_payload);
GetServerActualRequest(iov_in);
EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
EXPECT_EQ(in_header.opcode, FUSE_SETATTR);
EXPECT_EQ(in_header.uid, 0);
EXPECT_EQ(in_header.gid, 0);
EXPECT_EQ(in_payload.valid, FATTR_ATIME | FATTR_MTIME);
EXPECT_EQ(in_payload.atime, expected_atime);
EXPECT_EQ(in_payload.mtime, expected_mtime);
}
TEST_F(SetStatTest, UtimesFile) {
// Set up fixture.
SetServerInodeLookup(test_file_, test_file_mode_);
struct fuse_out_header out_header = {
.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_attr_out),
.error = 0,
};
struct fuse_attr_out out_payload = {
.attr = DefaultFuseAttr(test_file_mode_, 2),
};
auto iov_out = FuseGenerateIovecs(out_header, out_payload);
SetServerResponse(FUSE_SETATTR, iov_out);
// Make syscall.
struct timeval expected_times[2] = {
{
.tv_sec = 1597159766,
.tv_usec = 234945,
},
{
.tv_sec = 1597159765,
.tv_usec = 232341,
},
};
EXPECT_THAT(utimes(test_file_path_.c_str(), expected_times),
SyscallSucceeds());
// Check FUSE request.
struct fuse_in_header in_header;
struct fuse_setattr_in in_payload;
auto iov_in = FuseGenerateIovecs(in_header, in_payload);
GetServerActualRequest(iov_in);
EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
EXPECT_EQ(in_header.opcode, FUSE_SETATTR);
EXPECT_EQ(in_header.uid, 0);
EXPECT_EQ(in_header.gid, 0);
EXPECT_EQ(in_payload.valid, FATTR_ATIME | FATTR_MTIME);
EXPECT_EQ(in_payload.atime, expected_times[0].tv_sec);
EXPECT_EQ(in_payload.atimensec, expected_times[0].tv_usec * 1000);
EXPECT_EQ(in_payload.mtime, expected_times[1].tv_sec);
EXPECT_EQ(in_payload.mtimensec, expected_times[1].tv_usec * 1000);
}
TEST_F(SetStatTest, FtruncateFile) {
// Set up fixture.
SetServerInodeLookup(test_file_, test_file_mode_);
auto fd = ASSERT_NO_ERRNO_AND_VALUE(OpenPath(test_file_path_, O_RDWR, fh));
auto close_fd = CloseFD(fd);
struct fuse_out_header out_header = {
.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_attr_out),
.error = 0,
};
struct fuse_attr_out out_payload = {
.attr = DefaultFuseAttr(test_file_mode_, 2),
};
auto iov_out = FuseGenerateIovecs(out_header, out_payload);
SetServerResponse(FUSE_SETATTR, iov_out);
// Make syscall.
EXPECT_THAT(ftruncate(fd.get(), 321), SyscallSucceeds());
// Check FUSE request.
struct fuse_in_header in_header;
struct fuse_setattr_in in_payload;
auto iov_in = FuseGenerateIovecs(in_header, in_payload);
GetServerActualRequest(iov_in);
EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
EXPECT_EQ(in_header.opcode, FUSE_SETATTR);
EXPECT_EQ(in_header.uid, 0);
EXPECT_EQ(in_header.gid, 0);
EXPECT_EQ(in_payload.valid, FATTR_SIZE | FATTR_FH);
EXPECT_EQ(in_payload.fh, fh);
EXPECT_EQ(in_payload.size, 321);
}
TEST_F(SetStatTest, FchmodFile) {
// Set up fixture.
SetServerInodeLookup(test_file_, test_file_mode_);
auto fd = ASSERT_NO_ERRNO_AND_VALUE(OpenPath(test_file_path_, O_RDWR, fh));
auto close_fd = CloseFD(fd);
struct fuse_out_header out_header = {
.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_attr_out),
.error = 0,
};
mode_t set_mode = S_IROTH | S_IWOTH | S_IXOTH;
struct fuse_attr_out out_payload = {
.attr = DefaultFuseAttr(set_mode, 2),
};
auto iov_out = FuseGenerateIovecs(out_header, out_payload);
SetServerResponse(FUSE_SETATTR, iov_out);
// Make syscall.
EXPECT_THAT(fchmod(fd.get(), set_mode), SyscallSucceeds());
// Check FUSE request.
struct fuse_in_header in_header;
struct fuse_setattr_in in_payload;
auto iov_in = FuseGenerateIovecs(in_header, in_payload);
GetServerActualRequest(iov_in);
EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
EXPECT_EQ(in_header.opcode, FUSE_SETATTR);
EXPECT_EQ(in_header.uid, 0);
EXPECT_EQ(in_header.gid, 0);
EXPECT_EQ(in_payload.valid, FATTR_MODE | FATTR_FH);
EXPECT_EQ(in_payload.fh, fh);
EXPECT_EQ(in_payload.mode, S_IFREG | set_mode);
}
TEST_F(SetStatTest, FchownFile) {
// Set up fixture.
SetServerInodeLookup(test_file_, test_file_mode_);
auto fd = ASSERT_NO_ERRNO_AND_VALUE(OpenPath(test_file_path_, O_RDWR, fh));
auto close_fd = CloseFD(fd);
struct fuse_out_header out_header = {
.len = sizeof(struct fuse_out_header) + sizeof(struct fuse_attr_out),
.error = 0,
};
struct fuse_attr_out out_payload = {
.attr = DefaultFuseAttr(S_IFREG | S_IRUSR | S_IWUSR | S_IXUSR, 2),
};
auto iov_out = FuseGenerateIovecs(out_header, out_payload);
SetServerResponse(FUSE_SETATTR, iov_out);
// Make syscall.
EXPECT_THAT(fchown(fd.get(), 1025, 1025), SyscallSucceeds());
// Check FUSE request.
struct fuse_in_header in_header;
struct fuse_setattr_in in_payload;
auto iov_in = FuseGenerateIovecs(in_header, in_payload);
GetServerActualRequest(iov_in);
EXPECT_EQ(in_header.len, sizeof(in_header) + sizeof(in_payload));
EXPECT_EQ(in_header.opcode, FUSE_SETATTR);
EXPECT_EQ(in_header.uid, 0);
EXPECT_EQ(in_header.gid, 0);
EXPECT_EQ(in_payload.valid, FATTR_UID | FATTR_GID | FATTR_FH);
EXPECT_EQ(in_payload.fh, fh);
EXPECT_EQ(in_payload.uid, 1025);
EXPECT_EQ(in_payload.gid, 1025);
}
} // namespace
} // namespace testing
} // namespace gvisor
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