/*
   * collate.h - Defines for NTFS kernel collation handling.  Part of the
   *	       Linux-NTFS project.
   *
   * Copyright (c) 2004 Anton Altaparmakov
   *
   * This program/include file is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License as published
   * by the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program/include file is distributed in the hope that it will be
   * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
   * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program (in the main directory of the Linux-NTFS
   * distribution in the file COPYING); if not, write to the Free Software
   * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  #ifndef _LINUX_NTFS_COLLATE_H
  #define _LINUX_NTFS_COLLATE_H
  
  #include "types.h"
  #include "volume.h"
  
  static inline bool ntfs_is_collation_rule_supported(COLLATION_RULE cr) {
  	int i;
  
  	/*
  	 * FIXME:  At the moment we only support COLLATION_BINARY and
  	 * COLLATION_NTOFS_ULONG, so we return false for everything else for
  	 * now.
  	 */
  	if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG))
  		return false;
  	i = le32_to_cpu(cr);
  	if (likely(((i >= 0) && (i <= 0x02)) ||
  			((i >= 0x10) && (i <= 0x13))))
  		return true;
  	return false;
  }
  
  extern int ntfs_collate(ntfs_volume *vol, COLLATION_RULE cr,
  		const void *data1, const int data1_len,
  		const void *data2, const int data2_len);
  
  #endif /* _LINUX_NTFS_COLLATE_H */