162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * collate.h - Defines for NTFS kernel collation handling. Part of the 462306a36Sopenharmony_ci * Linux-NTFS project. 562306a36Sopenharmony_ci * 662306a36Sopenharmony_ci * Copyright (c) 2004 Anton Altaparmakov 762306a36Sopenharmony_ci */ 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#ifndef _LINUX_NTFS_COLLATE_H 1062306a36Sopenharmony_ci#define _LINUX_NTFS_COLLATE_H 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci#include "types.h" 1362306a36Sopenharmony_ci#include "volume.h" 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_cistatic inline bool ntfs_is_collation_rule_supported(COLLATION_RULE cr) { 1662306a36Sopenharmony_ci int i; 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci /* 1962306a36Sopenharmony_ci * FIXME: At the moment we only support COLLATION_BINARY and 2062306a36Sopenharmony_ci * COLLATION_NTOFS_ULONG, so we return false for everything else for 2162306a36Sopenharmony_ci * now. 2262306a36Sopenharmony_ci */ 2362306a36Sopenharmony_ci if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG)) 2462306a36Sopenharmony_ci return false; 2562306a36Sopenharmony_ci i = le32_to_cpu(cr); 2662306a36Sopenharmony_ci if (likely(((i >= 0) && (i <= 0x02)) || 2762306a36Sopenharmony_ci ((i >= 0x10) && (i <= 0x13)))) 2862306a36Sopenharmony_ci return true; 2962306a36Sopenharmony_ci return false; 3062306a36Sopenharmony_ci} 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ciextern int ntfs_collate(ntfs_volume *vol, COLLATION_RULE cr, 3362306a36Sopenharmony_ci const void *data1, const int data1_len, 3462306a36Sopenharmony_ci const void *data2, const int data2_len); 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci#endif /* _LINUX_NTFS_COLLATE_H */ 37