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gerrit-public.fairphone.software / kernel / msm-5.4 / 413826868fb49d200b741bcaeaf58ea5c5e45321 / . / fs / ntfs / ntfs.h
blob: a0bf706797bb28c507927eff0871738afe4093df [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * ntfs.h - Defines for NTFS Linux kernel driver. Part of the Linux-NTFS
3 * project.
4 *
5 * Copyright (c) 2001-2004 Anton Altaparmakov
6 * Copyright (C) 2002 Richard Russon
7 *
8 * This program/include file is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as published
10 * by the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program/include file is distributed in the hope that it will be
14 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program (in the main directory of the Linux-NTFS
20 * distribution in the file COPYING); if not, write to the Free Software
21 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24#ifndef _LINUX_NTFS_H
25#define _LINUX_NTFS_H
26
27#include <linux/stddef.h>
28#include <linux/kernel.h>
29#include <linux/module.h>
30#include <linux/compiler.h>
31#include <linux/fs.h>
32#include <linux/nls.h>
33#include <linux/smp.h>
34
35#include "types.h"
36#include "volume.h"
37#include "layout.h"
38
39typedef enum {
40 NTFS_BLOCK_SIZE = 512,
41 NTFS_BLOCK_SIZE_BITS = 9,
42 NTFS_SB_MAGIC = 0x5346544e, /* 'NTFS' */
43 NTFS_MAX_NAME_LEN = 255,
44} NTFS_CONSTANTS;
45
46/* Global variables. */
47
48/* Slab caches (from super.c). */
49extern kmem_cache_t *ntfs_name_cache;
50extern kmem_cache_t *ntfs_inode_cache;
51extern kmem_cache_t *ntfs_big_inode_cache;
52extern kmem_cache_t *ntfs_attr_ctx_cache;
53extern kmem_cache_t *ntfs_index_ctx_cache;
54
55/* The various operations structs defined throughout the driver files. */
56extern struct address_space_operations ntfs_aops;
57extern struct address_space_operations ntfs_mst_aops;
58
59extern struct file_operations ntfs_file_ops;
60extern struct inode_operations ntfs_file_inode_ops;
61
62extern struct file_operations ntfs_dir_ops;
63extern struct inode_operations ntfs_dir_inode_ops;
64
65extern struct file_operations ntfs_empty_file_ops;
66extern struct inode_operations ntfs_empty_inode_ops;
67
Anton Altaparmakov41382682005-03-03 13:44:15 +0000[diff] [blame^]68extern struct export_operations ntfs_export_ops;
69
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]70/**
71 * NTFS_SB - return the ntfs volume given a vfs super block
72 * @sb: VFS super block
73 *
74 * NTFS_SB() returns the ntfs volume associated with the VFS super block @sb.
75 */
76static inline ntfs_volume *NTFS_SB(struct super_block *sb)
77{
78 return sb->s_fs_info;
79}
80
81/* Declarations of functions and global variables. */
82
83/* From fs/ntfs/compress.c */
84extern int ntfs_read_compressed_block(struct page *page);
85extern int allocate_compression_buffers(void);
86extern void free_compression_buffers(void);
87
88/* From fs/ntfs/super.c */
89#define default_upcase_len 0x10000
90extern struct semaphore ntfs_lock;
91
92typedef struct {
93 int val;
94 char *str;
95} option_t;
96extern const option_t on_errors_arr[];
97
98/* From fs/ntfs/mst.c */
99extern int post_read_mst_fixup(NTFS_RECORD *b, const u32 size);
100extern int pre_write_mst_fixup(NTFS_RECORD *b, const u32 size);
101extern void post_write_mst_fixup(NTFS_RECORD *b);
102
103/* From fs/ntfs/unistr.c */
104extern BOOL ntfs_are_names_equal(const ntfschar *s1, size_t s1_len,
105 const ntfschar *s2, size_t s2_len,
106 const IGNORE_CASE_BOOL ic,
107 const ntfschar *upcase, const u32 upcase_size);
108extern int ntfs_collate_names(const ntfschar *name1, const u32 name1_len,
109 const ntfschar *name2, const u32 name2_len,
110 const int err_val, const IGNORE_CASE_BOOL ic,
111 const ntfschar *upcase, const u32 upcase_len);
112extern int ntfs_ucsncmp(const ntfschar *s1, const ntfschar *s2, size_t n);
113extern int ntfs_ucsncasecmp(const ntfschar *s1, const ntfschar *s2, size_t n,
114 const ntfschar *upcase, const u32 upcase_size);
115extern void ntfs_upcase_name(ntfschar *name, u32 name_len,
116 const ntfschar *upcase, const u32 upcase_len);
117extern void ntfs_file_upcase_value(FILE_NAME_ATTR *file_name_attr,
118 const ntfschar *upcase, const u32 upcase_len);
119extern int ntfs_file_compare_values(FILE_NAME_ATTR *file_name_attr1,
120 FILE_NAME_ATTR *file_name_attr2,
121 const int err_val, const IGNORE_CASE_BOOL ic,
122 const ntfschar *upcase, const u32 upcase_len);
123extern int ntfs_nlstoucs(const ntfs_volume *vol, const char *ins,
124 const int ins_len, ntfschar **outs);
125extern int ntfs_ucstonls(const ntfs_volume *vol, const ntfschar *ins,
126 const int ins_len, unsigned char **outs, int outs_len);
127
128/* From fs/ntfs/upcase.c */
129extern ntfschar *generate_default_upcase(void);
130
131#endif /* _LINUX_NTFS_H */