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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 | ||
39 | typedef 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). */ | |
49 | extern kmem_cache_t *ntfs_name_cache; | |
50 | extern kmem_cache_t *ntfs_inode_cache; | |
51 | extern kmem_cache_t *ntfs_big_inode_cache; | |
52 | extern kmem_cache_t *ntfs_attr_ctx_cache; | |
53 | extern kmem_cache_t *ntfs_index_ctx_cache; | |
54 | ||
55 | /* The various operations structs defined throughout the driver files. */ | |
56 | extern struct address_space_operations ntfs_aops; | |
57 | extern struct address_space_operations ntfs_mst_aops; | |
58 | ||
59 | extern struct file_operations ntfs_file_ops; | |
60 | extern struct inode_operations ntfs_file_inode_ops; | |
61 | ||
62 | extern struct file_operations ntfs_dir_ops; | |
63 | extern struct inode_operations ntfs_dir_inode_ops; | |
64 | ||
65 | extern struct file_operations ntfs_empty_file_ops; | |
66 | extern 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 | */ | |
74 | static 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 */ | |
82 | extern int ntfs_read_compressed_block(struct page *page); | |
83 | extern int allocate_compression_buffers(void); | |
84 | extern void free_compression_buffers(void); | |
85 | ||
86 | /* From fs/ntfs/super.c */ | |
87 | #define default_upcase_len 0x10000 | |
88 | extern struct semaphore ntfs_lock; | |
89 | ||
90 | typedef struct { | |
91 | int val; | |
92 | char *str; | |
93 | } option_t; | |
94 | extern const option_t on_errors_arr[]; | |
95 | ||
96 | /* From fs/ntfs/mst.c */ | |
97 | extern int post_read_mst_fixup(NTFS_RECORD *b, const u32 size); | |
98 | extern int pre_write_mst_fixup(NTFS_RECORD *b, const u32 size); | |
99 | extern void post_write_mst_fixup(NTFS_RECORD *b); | |
100 | ||
101 | /* From fs/ntfs/unistr.c */ | |
102 | extern 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); | |
106 | extern 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); | |
110 | extern int ntfs_ucsncmp(const ntfschar *s1, const ntfschar *s2, size_t n); | |
111 | extern int ntfs_ucsncasecmp(const ntfschar *s1, const ntfschar *s2, size_t n, | |
112 | const ntfschar *upcase, const u32 upcase_size); | |
113 | extern void ntfs_upcase_name(ntfschar *name, u32 name_len, | |
114 | const ntfschar *upcase, const u32 upcase_len); | |
115 | extern void ntfs_file_upcase_value(FILE_NAME_ATTR *file_name_attr, | |
116 | const ntfschar *upcase, const u32 upcase_len); | |
117 | extern 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); | |
121 | extern int ntfs_nlstoucs(const ntfs_volume *vol, const char *ins, | |
122 | const int ins_len, ntfschar **outs); | |
123 | extern 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 */ | |
127 | extern ntfschar *generate_default_upcase(void); | |
128 | ||
129 | #endif /* _LINUX_NTFS_H */ |