コード例 #1
0
ファイル: unionfs_test.go プロジェクト: y-okubo/go-fuse
// Creates 3 directories on a temporary dir: /mnt with the overlayed
// (unionfs) mount, rw with modifiable data, and ro on the bottom.
func setupUfs(t *testing.T) (workdir string, cleanup func()) {
	// Make sure system setting does not affect test.
	syscall.Umask(0)

	wd, _ := ioutil.TempDir("", "unionfs")
	err := os.Mkdir(wd+"/mnt", 0700)
	if err != nil {
		t.Fatalf("Mkdir failed: %v", err)
	}

	err = os.Mkdir(wd+"/rw", 0700)
	if err != nil {
		t.Fatalf("Mkdir failed: %v", err)
	}

	os.Mkdir(wd+"/ro", 0700)
	if err != nil {
		t.Fatalf("Mkdir failed: %v", err)
	}

	var fses []pathfs.FileSystem
	fses = append(fses, pathfs.NewLoopbackFileSystem(wd+"/rw"))
	fses = append(fses,
		NewCachingFileSystem(pathfs.NewLoopbackFileSystem(wd+"/ro"), 0))
	ufs, err := NewUnionFs(fses, testOpts)
	if err != nil {
		t.Fatalf("NewUnionFs: %v", err)
	}
	// We configure timeouts are smaller, so we can check for
	// UnionFs's cache consistency.
	opts := &nodefs.Options{
		EntryTimeout:    entryTtl / 2,
		AttrTimeout:     entryTtl / 2,
		NegativeTimeout: entryTtl / 2,
		PortableInodes:  true,
	}

	pathfs := pathfs.NewPathNodeFs(ufs,
		&pathfs.PathNodeFsOptions{ClientInodes: true})
	state, conn, err := nodefs.MountRoot(wd+"/mnt", pathfs.Root(), opts)
	if err != nil {
		t.Fatalf("MountNodeFileSystem failed: %v", err)
	}
	conn.SetDebug(VerboseTest())
	state.SetDebug(VerboseTest())
	pathfs.SetDebug(VerboseTest())
	go state.Serve()

	return wd, func() {
		err := state.Unmount()
		if err != nil {
			return
		}
		setRecursiveWritable(t, wd, true)
		os.RemoveAll(wd)
	}
}
コード例 #2
0
ファイル: cache_test.go プロジェクト: y-okubo/go-fuse
func setupCacheTest(t *testing.T) (string, *pathfs.PathNodeFs, func()) {
	dir, err := ioutil.TempDir("", "go-fuse-cachetest")
	if err != nil {
		t.Fatalf("TempDir failed: %v", err)
	}
	os.Mkdir(dir+"/mnt", 0755)
	os.Mkdir(dir+"/orig", 0755)

	fs := &cacheFs{
		pathfs.NewLoopbackFileSystem(dir + "/orig"),
	}
	pfs := pathfs.NewPathNodeFs(fs, nil)
	state, conn, err := nodefs.MountRoot(dir+"/mnt", pfs.Root(), nil)
	if err != nil {
		t.Fatalf("MountNodeFileSystem failed: %v", err)
	}
	state.SetDebug(VerboseTest())
	conn.SetDebug(VerboseTest())
	pfs.SetDebug(VerboseTest())
	go state.Serve()

	return dir, pfs, func() {
		err := state.Unmount()
		if err == nil {
			os.RemoveAll(dir)
		}
	}
}
コード例 #3
0
ファイル: loopback_test.go プロジェクト: y-okubo/go-fuse
func TestOriginalIsSymlink(t *testing.T) {
	tmpDir, err := ioutil.TempDir("", "go-fuse-loopback_test")
	if err != nil {
		t.Fatalf("TempDir failed: %v", err)
	}
	defer os.RemoveAll(tmpDir)
	orig := tmpDir + "/orig"
	err = os.Mkdir(orig, 0755)
	if err != nil {
		t.Fatalf("Mkdir failed: %v", err)
	}
	link := tmpDir + "/link"
	mnt := tmpDir + "/mnt"
	if err := os.Mkdir(mnt, 0755); err != nil {
		t.Fatalf("Mkdir failed: %v", err)
	}
	if err := os.Symlink("orig", link); err != nil {
		t.Fatalf("Symlink failed: %v", err)
	}

	fs := pathfs.NewLoopbackFileSystem(link)
	nfs := pathfs.NewPathNodeFs(fs, nil)
	state, _, err := nodefs.MountRoot(mnt, nfs.Root(), nil)
	if err != nil {
		t.Fatalf("MountNodeFileSystem failed: %v", err)
	}
	defer state.Unmount()

	go state.Serve()

	if _, err := os.Lstat(mnt); err != nil {
		t.Fatalf("Lstat failed: %v", err)
	}
}
コード例 #4
0
ファイル: loopback_test.go プロジェクト: y-okubo/go-fuse
// Create and mount filesystem.
func NewTestCase(t *testing.T) *testCase {
	tc := &testCase{}
	tc.tester = t

	// Make sure system setting does not affect test.
	syscall.Umask(0)

	const name string = "hello.txt"
	const subdir string = "subdir"

	var err error
	tc.tmpDir, err = ioutil.TempDir("", "go-fuse")
	if err != nil {
		t.Fatalf("TempDir failed: %v", err)
	}
	tc.orig = tc.tmpDir + "/orig"
	tc.mnt = tc.tmpDir + "/mnt"

	os.Mkdir(tc.orig, 0700)
	os.Mkdir(tc.mnt, 0700)

	tc.mountFile = filepath.Join(tc.mnt, name)
	tc.mountSubdir = filepath.Join(tc.mnt, subdir)
	tc.origFile = filepath.Join(tc.orig, name)
	tc.origSubdir = filepath.Join(tc.orig, subdir)

	var pfs pathfs.FileSystem
	pfs = pathfs.NewLoopbackFileSystem(tc.orig)
	pfs = pathfs.NewLockingFileSystem(pfs)

	tc.pathFs = pathfs.NewPathNodeFs(pfs, &pathfs.PathNodeFsOptions{
		ClientInodes: true})
	tc.connector = nodefs.NewFileSystemConnector(tc.pathFs.Root(),
		&nodefs.Options{
			EntryTimeout:    testTtl,
			AttrTimeout:     testTtl,
			NegativeTimeout: 0.0,
		})
	tc.connector.SetDebug(VerboseTest())
	tc.state, err = fuse.NewServer(
		fuse.NewRawFileSystem(tc.connector.RawFS()), tc.mnt, &fuse.MountOptions{SingleThreaded: true})
	if err != nil {
		t.Fatal("NewServer:", err)
	}

	tc.state.SetDebug(VerboseTest())

	// Unthreaded, but in background.
	go tc.state.Serve()

	tc.state.WaitMount()
	return tc
}
コード例 #5
0
ファイル: mount_test.go プロジェクト: y-okubo/go-fuse
func TestMountRename(t *testing.T) {
	ts := NewTestCase(t)
	defer ts.Cleanup()

	fs := pathfs.NewPathNodeFs(pathfs.NewLoopbackFileSystem(ts.orig), nil)
	code := ts.connector.Mount(ts.rootNode(), "mnt", fs.Root(), nil)
	if !code.Ok() {
		t.Fatal("mount should succeed")
	}
	err := os.Rename(ts.mnt+"/mnt", ts.mnt+"/foobar")
	if fuse.ToStatus(err) != fuse.EBUSY {
		t.Fatal("rename mount point should fail with EBUSY:", err)
	}
	ts.pathFs.Unmount("mnt")
}
コード例 #6
0
ファイル: cache_test.go プロジェクト: y-okubo/go-fuse
func TestGetAttrRace(t *testing.T) {
	dir, err := ioutil.TempDir("", "go-fuse-cache_test")
	if err != nil {
		t.Fatalf("failed: %v", err)
	}
	defer os.RemoveAll(dir)
	os.Mkdir(dir+"/mnt", 0755)
	os.Mkdir(dir+"/orig", 0755)

	fs := pathfs.NewLoopbackFileSystem(dir + "/orig")
	pfs := pathfs.NewPathNodeFs(fs, nil)
	state, conn, err := nodefs.MountRoot(dir+"/mnt", pfs.Root(),
		&nodefs.Options{})
	if err != nil {
		t.Fatalf("MountNodeFileSystem failed: %v", err)
	}
	state.SetDebug(VerboseTest())
	conn.SetDebug(VerboseTest())
	pfs.SetDebug(VerboseTest())
	go state.Serve()

	defer state.Unmount()

	var wg sync.WaitGroup

	n := 100
	wg.Add(n)
	var statErr error
	for i := 0; i < n; i++ {
		go func() {
			defer wg.Done()
			fn := dir + "/mnt/file"
			err := ioutil.WriteFile(fn, []byte{42}, 0644)
			if err != nil {
				statErr = err
				return
			}
			_, err = os.Lstat(fn)
			if err != nil {
				statErr = err
			}
		}()
	}
	wg.Wait()
	if statErr != nil {
		t.Error(statErr)
	}
}
コード例 #7
0
ファイル: mount_test.go プロジェクト: y-okubo/go-fuse
func TestRecursiveMount(t *testing.T) {
	ts := NewTestCase(t)
	defer ts.Cleanup()

	err := ioutil.WriteFile(ts.orig+"/hello.txt", []byte("blabla"), 0644)
	if err != nil {
		t.Fatalf("WriteFile failed: %v", err)
	}

	fs := pathfs.NewPathNodeFs(pathfs.NewLoopbackFileSystem(ts.orig), nil)
	code := ts.connector.Mount(ts.rootNode(), "mnt", fs.Root(), nil)
	if !code.Ok() {
		t.Fatal("mount should succeed")
	}

	submnt := ts.mnt + "/mnt"
	_, err = os.Lstat(submnt)
	if err != nil {
		t.Fatalf("Lstat failed: %v", err)
	}
	_, err = os.Lstat(filepath.Join(submnt, "hello.txt"))
	if err != nil {
		t.Fatalf("Lstat failed: %v", err)
	}

	f, err := os.Open(filepath.Join(submnt, "hello.txt"))
	if err != nil {
		t.Fatalf("Open failed: %v", err)
	}
	t.Log("Attempting unmount, should fail")
	code = ts.pathFs.Unmount("mnt")
	if code != fuse.EBUSY {
		t.Error("expect EBUSY")
	}

	f.Close()
	t.Log("Waiting for kernel to flush file-close to fuse...")
	time.Sleep(testTtl)

	t.Log("Attempting unmount, should succeed")
	code = ts.pathFs.Unmount("mnt")
	if code != fuse.OK {
		t.Error("umount failed.", code)
	}
}
コード例 #8
0
ファイル: mount_test.go プロジェクト: y-okubo/go-fuse
func TestMountReaddir(t *testing.T) {
	ts := NewTestCase(t)
	defer ts.Cleanup()

	fs := pathfs.NewPathNodeFs(pathfs.NewLoopbackFileSystem(ts.orig), nil)
	code := ts.connector.Mount(ts.rootNode(), "mnt", fs.Root(), nil)
	if !code.Ok() {
		t.Fatal("mount should succeed")
	}

	entries, err := ioutil.ReadDir(ts.mnt)
	if err != nil {
		t.Fatalf("ReadDir failed: %v", err)
	}
	if len(entries) != 1 || entries[0].Name() != "mnt" {
		t.Error("wrong readdir result", entries)
	}
	ts.pathFs.Unmount("mnt")
}
コード例 #9
0
ファイル: cachingfs_test.go プロジェクト: y-okubo/go-fuse
func TestCachingFs(t *testing.T) {
	wd, _ := ioutil.TempDir("", "")
	defer os.RemoveAll(wd)

	fs := pathfs.NewLoopbackFileSystem(wd)
	cfs := NewCachingFileSystem(fs, 0)

	os.Mkdir(wd+"/orig", 0755)
	fi, code := cfs.GetAttr("orig", nil)
	if !code.Ok() {
		t.Fatal("GetAttr failure", code)
	}
	if !fi.IsDir() {
		t.Error("unexpected attr", fi)
	}

	os.Symlink("orig", wd+"/symlink")

	val, code := cfs.Readlink("symlink", nil)
	if val != "orig" {
		t.Error("unexpected readlink", val)
	}
	if !code.Ok() {
		t.Error("code !ok ", code)
	}

	stream, code := cfs.OpenDir("", nil)
	if !code.Ok() {
		t.Fatal("Readdir fail", code)
	}

	results := make(map[string]uint32)
	for _, v := range stream {
		results[v.Name] = v.Mode &^ 07777
	}
	expected := map[string]uint32{
		"symlink": syscall.S_IFLNK,
		"orig":    fuse.S_IFDIR,
	}
	if !modeMapEq(results, expected) {
		t.Error("Unexpected readdir result", results, expected)
	}
}
コード例 #10
0
ファイル: main.go プロジェクト: y-okubo/go-fuse
func main() {
	// Scans the arg list and sets up flags
	debug := flag.Bool("debug", false, "print debugging messages.")
	other := flag.Bool("allow-other", false, "mount with -o allowother.")
	flag.Parse()
	if flag.NArg() < 2 {
		// TODO - where to get program name?
		fmt.Println("usage: main MOUNTPOINT ORIGINAL")
		os.Exit(2)
	}

	var finalFs pathfs.FileSystem
	orig := flag.Arg(1)
	loopbackfs := pathfs.NewLoopbackFileSystem(orig)
	finalFs = loopbackfs

	opts := &nodefs.Options{
		// These options are to be compatible with libfuse defaults,
		// making benchmarking easier.
		NegativeTimeout: time.Second,
		AttrTimeout:     time.Second,
		EntryTimeout:    time.Second,
	}
	pathFs := pathfs.NewPathNodeFs(finalFs, nil)
	conn := nodefs.NewFileSystemConnector(pathFs.Root(), opts)
	mountPoint := flag.Arg(0)
	origAbs, _ := filepath.Abs(orig)
	mOpts := &fuse.MountOptions{
		AllowOther: *other,
		Name:       "loopbackfs",
		FsName:     origAbs,
	}
	state, err := fuse.NewServer(conn.RawFS(), mountPoint, mOpts)
	if err != nil {
		fmt.Printf("Mount fail: %v\n", err)
		os.Exit(1)
	}
	state.SetDebug(*debug)

	fmt.Println("Mounted!")
	state.Serve()
}
コード例 #11
0
ファイル: mount_test.go プロジェクト: y-okubo/go-fuse
func TestDeletedUnmount(t *testing.T) {
	ts := NewTestCase(t)
	defer ts.Cleanup()

	submnt := filepath.Join(ts.mnt, "mnt")
	pfs2 := pathfs.NewPathNodeFs(pathfs.NewLoopbackFileSystem(ts.orig), nil)
	code := ts.connector.Mount(ts.rootNode(), "mnt", pfs2.Root(), nil)
	if !code.Ok() {
		t.Fatal("Mount error", code)
	}
	f, err := os.Create(filepath.Join(submnt, "hello.txt"))
	if err != nil {
		t.Fatalf("Create failed: %v", err)
	}

	t.Log("Removing")
	err = os.Remove(filepath.Join(submnt, "hello.txt"))
	if err != nil {
		t.Fatalf("Remove failed: %v", err)
	}

	t.Log("Removing")
	_, err = f.Write([]byte("bla"))
	if err != nil {
		t.Fatalf("Write failed: %v", err)
	}

	code = ts.pathFs.Unmount("mnt")
	if code != fuse.EBUSY {
		t.Error("expect EBUSY for unmount with open files", code)
	}

	f.Close()
	time.Sleep((3 * testTtl) / 2)
	code = ts.pathFs.Unmount("mnt")
	if !code.Ok() {
		t.Error("should succeed", code)
	}
}
コード例 #12
0
ファイル: create.go プロジェクト: y-okubo/go-fuse
func NewUnionFsFromRoots(roots []string, opts *UnionFsOptions, roCaching bool) (pathfs.FileSystem, error) {
	fses := make([]pathfs.FileSystem, 0)
	for i, r := range roots {
		var fs pathfs.FileSystem
		fi, err := os.Stat(r)
		if err != nil {
			return nil, err
		}
		if fi.IsDir() {
			fs = pathfs.NewLoopbackFileSystem(r)
		}
		if fs == nil {
			return nil, err

		}
		if i > 0 && roCaching {
			fs = NewCachingFileSystem(fs, 0)
		}

		fses = append(fses, fs)
	}

	return NewUnionFs(fses, *opts)
}
コード例 #13
0
ファイル: unionfs_test.go プロジェクト: y-okubo/go-fuse
func TestUnionFsDisappearing(t *testing.T) {
	// This init is like setupUfs, but we want access to the
	// writable Fs.
	wd, _ := ioutil.TempDir("", "")
	defer os.RemoveAll(wd)
	err := os.Mkdir(wd+"/mnt", 0700)
	if err != nil {
		t.Fatalf("Mkdir failed: %v", err)
	}

	err = os.Mkdir(wd+"/rw", 0700)
	if err != nil {
		t.Fatalf("Mkdir failed: %v", err)
	}

	os.Mkdir(wd+"/ro", 0700)
	if err != nil {
		t.Fatalf("Mkdir failed: %v", err)
	}

	wrFs := newDisappearingFS(pathfs.NewLoopbackFileSystem(wd+"/rw"),
		pathfs.NewLoopbackFileSystem("/dev/null"))
	var fses []pathfs.FileSystem
	fses = append(fses, pathfs.NewLockingFileSystem(wrFs))
	fses = append(fses, pathfs.NewLoopbackFileSystem(wd+"/ro"))
	ufs, err := NewUnionFs(fses, testOpts)
	if err != nil {
		t.Fatalf("NewUnionFs: %v", err)
	}

	opts := &nodefs.Options{
		EntryTimeout:    entryTtl,
		AttrTimeout:     entryTtl,
		NegativeTimeout: entryTtl,
	}

	nfs := pathfs.NewPathNodeFs(ufs, nil)
	state, _, err := nodefs.MountRoot(wd+"/mnt", nfs.Root(), opts)
	if err != nil {
		t.Fatalf("MountNodeFileSystem failed: %v", err)
	}
	defer state.Unmount()
	state.SetDebug(VerboseTest())
	go state.Serve()

	log.Println("TestUnionFsDisappearing2")

	err = ioutil.WriteFile(wd+"/ro/file", []byte("blabla"), 0644)
	if err != nil {
		t.Fatalf("WriteFile failed: %v", err)
	}
	setRecursiveWritable(t, wd+"/ro", false)

	err = os.Remove(wd + "/mnt/file")
	if err != nil {
		t.Fatalf("Remove failed: %v", err)
	}

	wrFs.visibleChan <- false
	time.Sleep((3 * entryTtl) / 2)

	_, err = ioutil.ReadDir(wd + "/mnt")
	if err == nil {
		t.Fatal("Readdir should have failed")
	}
	log.Println("expected readdir failure:", err)

	err = ioutil.WriteFile(wd+"/mnt/file2", []byte("blabla"), 0644)
	if err == nil {
		t.Fatal("write should have failed")
	}
	log.Println("expected write failure:", err)

	// Restore, and wait for caches to catch up.
	wrFs.visibleChan <- true
	time.Sleep((3 * entryTtl) / 2)

	_, err = ioutil.ReadDir(wd + "/mnt")
	if err != nil {
		t.Fatal("Readdir should succeed", err)
	}
	err = ioutil.WriteFile(wd+"/mnt/file2", []byte("blabla"), 0644)
	if err != nil {
		t.Fatal("write should succeed", err)
	}
}
コード例 #14
0
ファイル: unionfs_xattr_test.go プロジェクト: y-okubo/go-fuse
func TestXAttrCaching(t *testing.T) {
	wd, _ := ioutil.TempDir("", "unionfs")
	defer os.RemoveAll(wd)
	os.Mkdir(wd+"/mnt", 0700)
	err := os.Mkdir(wd+"/rw", 0700)
	if err != nil {
		t.Fatalf("Mkdir failed: %v", err)
	}

	rwFS := pathfs.NewLoopbackFileSystem(wd + "/rw")
	roFS := &TestFS{
		FileSystem: pathfs.NewDefaultFileSystem(),
	}

	ufs, err := NewUnionFs([]pathfs.FileSystem{rwFS,
		NewCachingFileSystem(roFS, entryTtl)}, testOpts)
	if err != nil {
		t.Fatalf("NewUnionFs: %v", err)
	}

	opts := &nodefs.Options{
		EntryTimeout:    entryTtl / 2,
		AttrTimeout:     entryTtl / 2,
		NegativeTimeout: entryTtl / 2,
	}

	pathfs := pathfs.NewPathNodeFs(ufs,
		&pathfs.PathNodeFsOptions{ClientInodes: true})

	server, conn, err := nodefs.MountRoot(wd+"/mnt", pathfs.Root(), opts)
	if err != nil {
		t.Fatalf("MountNodeFileSystem failed: %v", err)
	}
	server.SetDebug(VerboseTest())
	conn.SetDebug(VerboseTest())
	pathfs.SetDebug(VerboseTest())
	defer server.Unmount()
	go server.Serve()

	if fi, err := os.Lstat(wd + "/mnt"); err != nil || !fi.IsDir() {
		t.Fatalf("root not readable: %v, %v", err, fi)
	}

	buf := make([]byte, 1024)
	n, err := syscall.Getxattr(wd+"/mnt/file", "user.attr", buf)
	if err != nil {
		t.Fatalf("Getxattr: %v", err)
	}
	want := "\x2a"
	got := string(buf[:n])
	if got != want {
		t.Fatalf("Got %q want %q", got, err)
	}
	time.Sleep(entryTtl / 2)
	n, err = syscall.Getxattr(wd+"/mnt/file", "user.attr", buf)
	if err != nil {
		t.Fatalf("Getxattr: %v", err)
	}
	got = string(buf[:n])
	if got != want {
		t.Fatalf("Got %q want %q", got, err)
	}
	server.Unmount()
	if roFS.xattrRead != 1 {
		t.Errorf("got xattrRead=%d, want 1", roFS.xattrRead)
	}
}