1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * collate.h - Defines for NTFS kernel collation handling. Part of the 4 * Linux-NTFS project. 5 * 6 * Copyright (c) 2004 Anton Altaparmakov 7 */ 8 9 #ifndef _LINUX_NTFS_COLLATE_H 10 #define _LINUX_NTFS_COLLATE_H 11 12 #include "types.h" 13 #include "volume.h" 14 15 static inline bool ntfs_is_collation_rule_supported(COLLATION_RULE cr) { 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)) 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 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 */ 37