| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * collate.h - Defines for NTFS kernel collation handling. Part of the |
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| 4 | * Linux-NTFS project. |
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| 5 | * |
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| 6 | * Copyright (c) 2004 Anton Altaparmakov |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef _LINUX_NTFS_COLLATE_H |
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| 10 | #define _LINUX_NTFS_COLLATE_H |
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| 11 | |
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| 12 | #include "types.h" |
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| 13 | #include "volume.h" |
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| 14 | |
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| 15 | static inline bool ntfs_is_collation_rule_supported(COLLATION_RULE cr) { |
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| 16 | int i; |
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| 17 | |
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| 18 | /* |
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| 19 | * FIXME: At the moment we only support COLLATION_BINARY and |
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| 20 | * COLLATION_NTOFS_ULONG, so we return false for everything else for |
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| 21 | * now. |
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| 22 | */ |
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| 23 | if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG)) |
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| 24 | return false; |
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| 25 | i = le32_to_cpu(cr); |
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| 26 | if (likely(((i >= 0) && (i <= 0x02)) || |
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| 27 | ((i >= 0x10) && (i <= 0x13)))) |
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| 28 | return true; |
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| 29 | return false; |
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| 30 | } |
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| 31 | |
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| 32 | extern int ntfs_collate(ntfs_volume *vol, COLLATION_RULE cr, |
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| 33 | const void *data1, const int data1_len, |
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| 34 | const void *data2, const int data2_len); |
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| 35 | |
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| 36 | #endif /* _LINUX_NTFS_COLLATE_H */ |
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| 37 | |
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