1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/file_util.h"
8 #include <linux/magic.h>
11 #include "base/files/file_path.h"
13 // Make sure some of the newer macros from magic.h are defined.
14 // TODO(mostynb@opera.com): remove this after 2014.
15 #ifndef BTRFS_SUPER_MAGIC
16 #define BTRFS_SUPER_MAGIC 0x9123683E
18 #ifndef HUGETLBFS_MAGIC
19 #define HUGETLBFS_MAGIC 0x958458f6
22 #define RAMFS_MAGIC 0x858458f6
25 #define TMPFS_MAGIC 0x01021994
30 bool GetFileSystemType(const FilePath
& path
, FileSystemType
* type
) {
31 struct statfs statfs_buf
;
32 if (statfs(path
.value().c_str(), &statfs_buf
) < 0) {
35 *type
= FILE_SYSTEM_UNKNOWN
;
39 // Not all possible |statfs_buf.f_type| values are in linux/magic.h.
40 // Missing values are copied from the statfs man page.
41 switch (statfs_buf
.f_type
) {
43 *type
= FILE_SYSTEM_0
;
45 case EXT2_SUPER_MAGIC
: // Also ext3 and ext4
46 case MSDOS_SUPER_MAGIC
:
47 case REISERFS_SUPER_MAGIC
:
48 case BTRFS_SUPER_MAGIC
:
49 case 0x5346544E: // NTFS
50 case 0x58465342: // XFS
51 case 0x3153464A: // JFS
52 *type
= FILE_SYSTEM_ORDINARY
;
55 *type
= FILE_SYSTEM_NFS
;
58 case 0xFF534D42: // CIFS
59 *type
= FILE_SYSTEM_SMB
;
61 case CODA_SUPER_MAGIC
:
62 *type
= FILE_SYSTEM_CODA
;
67 *type
= FILE_SYSTEM_MEMORY
;
69 case CGROUP_SUPER_MAGIC
:
70 *type
= FILE_SYSTEM_CGROUP
;
73 *type
= FILE_SYSTEM_OTHER
;