1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Defines for NTFS kernel collation handling. 4 * 5 * Copyright (c) 2004 Anton Altaparmakov 6 * 7 * Part of this file is based on code from the NTFS-3G. 8 * and is copyrighted by the respective authors below: 9 * Copyright (c) 2004 Anton Altaparmakov 10 * Copyright (c) 2005 Yura Pakhuchiy 11 */ 12 13 #ifndef _LINUX_NTFS_COLLATE_H 14 #define _LINUX_NTFS_COLLATE_H 15 16 #include "volume.h" 17 18 static inline bool ntfs_is_collation_rule_supported(__le32 cr) 19 { 20 int i; 21 22 if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG && 23 cr != COLLATION_FILE_NAME) && cr != COLLATION_NTOFS_ULONGS) 24 return false; 25 i = le32_to_cpu(cr); 26 if (likely(((i >= 0) && (i <= 0x02)) || 27 ((i >= 0x10) && (i <= 0x13)))) 28 return true; 29 return false; 30 } 31 32 int ntfs_collate(struct ntfs_volume *vol, __le32 cr, 33 const void *data1, const u32 data1_len, 34 const void *data2, const u32 data2_len); 35 36 #endif /* _LINUX_NTFS_COLLATE_H */ 37