// 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