1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * collate.h - Defines for NTFS kernel collation handling. Part of the 4*4882a593Smuzhiyun * Linux-NTFS project. 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * Copyright (c) 2004 Anton Altaparmakov 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifndef _LINUX_NTFS_COLLATE_H 10*4882a593Smuzhiyun #define _LINUX_NTFS_COLLATE_H 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include "types.h" 13*4882a593Smuzhiyun #include "volume.h" 14*4882a593Smuzhiyun ntfs_is_collation_rule_supported(COLLATION_RULE cr)15*4882a593Smuzhiyunstatic inline bool ntfs_is_collation_rule_supported(COLLATION_RULE cr) { 16*4882a593Smuzhiyun int i; 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun /* 19*4882a593Smuzhiyun * FIXME: At the moment we only support COLLATION_BINARY and 20*4882a593Smuzhiyun * COLLATION_NTOFS_ULONG, so we return false for everything else for 21*4882a593Smuzhiyun * now. 22*4882a593Smuzhiyun */ 23*4882a593Smuzhiyun if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG)) 24*4882a593Smuzhiyun return false; 25*4882a593Smuzhiyun i = le32_to_cpu(cr); 26*4882a593Smuzhiyun if (likely(((i >= 0) && (i <= 0x02)) || 27*4882a593Smuzhiyun ((i >= 0x10) && (i <= 0x13)))) 28*4882a593Smuzhiyun return true; 29*4882a593Smuzhiyun return false; 30*4882a593Smuzhiyun } 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun extern int ntfs_collate(ntfs_volume *vol, COLLATION_RULE cr, 33*4882a593Smuzhiyun const void *data1, const int data1_len, 34*4882a593Smuzhiyun const void *data2, const int data2_len); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun #endif /* _LINUX_NTFS_COLLATE_H */ 37