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 */ 130