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android-review.linaro.org / kernel / hikey-linaro / 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 / . / fs / ntfs / ntfs.h
blob: 720ffb71bab84204918352b852440883ef20c5fd [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
68/**
69 * NTFS_SB - return the ntfs volume given a vfs super block
70 * @sb: VFS super block
71 *
72 * NTFS_SB() returns the ntfs volume associated with the VFS super block @sb.
73 */
74static inline ntfs_volume *NTFS_SB(struct super_block *sb)
75{
76 return sb->s_fs_info;
77}
78
79/* Declarations of functions and global variables. */
80
81/* From fs/ntfs/compress.c */
82extern int ntfs_read_compressed_block(struct page *page);
83extern int allocate_compression_buffers(void);
84extern void free_compression_buffers(void);
85
86/* From fs/ntfs/super.c */
87#define default_upcase_len 0x10000
88extern struct semaphore ntfs_lock;
89
90typedef struct {
91 int val;
92 char *str;
93} option_t;
94extern const option_t on_errors_arr[];
95
96/* From fs/ntfs/mst.c */
97extern int post_read_mst_fixup(NTFS_RECORD *b, const u32 size);
98extern int pre_write_mst_fixup(NTFS_RECORD *b, const u32 size);
99extern void post_write_mst_fixup(NTFS_RECORD *b);
100
101/* From fs/ntfs/unistr.c */
102extern BOOL ntfs_are_names_equal(const ntfschar *s1, size_t s1_len,
103 const ntfschar *s2, size_t s2_len,
104 const IGNORE_CASE_BOOL ic,
105 const ntfschar *upcase, const u32 upcase_size);
106extern int ntfs_collate_names(const ntfschar *name1, const u32 name1_len,
107 const ntfschar *name2, const u32 name2_len,
108 const int err_val, const IGNORE_CASE_BOOL ic,
109 const ntfschar *upcase, const u32 upcase_len);
110extern int ntfs_ucsncmp(const ntfschar *s1, const ntfschar *s2, size_t n);
111extern int ntfs_ucsncasecmp(const ntfschar *s1, const ntfschar *s2, size_t n,
112 const ntfschar *upcase, const u32 upcase_size);
113extern void ntfs_upcase_name(ntfschar *name, u32 name_len,
114 const ntfschar *upcase, const u32 upcase_len);
115extern void ntfs_file_upcase_value(FILE_NAME_ATTR *file_name_attr,
116 const ntfschar *upcase, const u32 upcase_len);
117extern int ntfs_file_compare_values(FILE_NAME_ATTR *file_name_attr1,
118 FILE_NAME_ATTR *file_name_attr2,
119 const int err_val, const IGNORE_CASE_BOOL ic,
120 const ntfschar *upcase, const u32 upcase_len);
121extern int ntfs_nlstoucs(const ntfs_volume *vol, const char *ins,
122 const int ins_len, ntfschar **outs);
123extern int ntfs_ucstonls(const ntfs_volume *vol, const ntfschar *ins,
124 const int ins_len, unsigned char **outs, int outs_len);
125
126/* From fs/ntfs/upcase.c */
127extern ntfschar *generate_default_upcase(void);
128
129#endif /* _LINUX_NTFS_H */