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a1d312de | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
2 | /* |
3 | * collate.h - Defines for NTFS kernel collation handling. Part of the | |
4 | * Linux-NTFS project. | |
5 | * | |
6 | * Copyright (c) 2004 Anton Altaparmakov | |
1da177e4 LT |
7 | */ |
8 | ||
9 | #ifndef _LINUX_NTFS_COLLATE_H | |
10 | #define _LINUX_NTFS_COLLATE_H | |
11 | ||
12 | #include "types.h" | |
13 | #include "volume.h" | |
14 | ||
c49c3111 | 15 | static inline bool ntfs_is_collation_rule_supported(COLLATION_RULE cr) { |
1da177e4 LT |
16 | int i; |
17 | ||
18 | /* | |
19 | * FIXME: At the moment we only support COLLATION_BINARY and | |
20 | * COLLATION_NTOFS_ULONG, so we return false for everything else for | |
21 | * now. | |
22 | */ | |
23 | if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG)) | |
c49c3111 | 24 | return false; |
1da177e4 LT |
25 | i = le32_to_cpu(cr); |
26 | if (likely(((i >= 0) && (i <= 0x02)) || | |
27 | ((i >= 0x10) && (i <= 0x13)))) | |
c49c3111 RK |
28 | return true; |
29 | return false; | |
1da177e4 LT |
30 | } |
31 | ||
32 | extern int ntfs_collate(ntfs_volume *vol, COLLATION_RULE cr, | |
33 | const void *data1, const int data1_len, | |
34 | const void *data2, const int data2_len); | |
35 | ||
36 | #endif /* _LINUX_NTFS_COLLATE_H */ |