1/* 2 * collate.h - Defines for NTFS kernel collation handling. Part of the 3 * Linux-NTFS project. 4 * 5 * Copyright (c) 2004 Anton Altaparmakov 6 * 7 * This program/include file is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as published 9 * by the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program/include file is distributed in the hope that it will be 13 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty 14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program (in the main directory of the Linux-NTFS 19 * distribution in the file COPYING); if not, write to the Free Software 20 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 */ 22 23#ifndef _LINUX_NTFS_COLLATE_H 24#define _LINUX_NTFS_COLLATE_H 25 26#include "types.h" 27#include "volume.h" 28 29static inline bool ntfs_is_collation_rule_supported(COLLATION_RULE cr) { 30 int i; 31 32 /* 33 * FIXME: At the moment we only support COLLATION_BINARY and 34 * COLLATION_NTOFS_ULONG, so we return false for everything else for 35 * now. 36 */ 37 if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG)) 38 return false; 39 i = le32_to_cpu(cr); 40 if (likely(((i >= 0) && (i <= 0x02)) || 41 ((i >= 0x10) && (i <= 0x13)))) 42 return true; 43 return false; 44} 45 46extern int ntfs_collate(ntfs_volume *vol, COLLATION_RULE cr, 47 const void *data1, const int data1_len, 48 const void *data2, const int data2_len); 49 50#endif /* _LINUX_NTFS_COLLATE_H */ 51