11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * ntfs.h - Defines for NTFS Linux kernel driver. Part of the Linux-NTFS 31da177e4SLinus Torvalds * project. 41da177e4SLinus Torvalds * 5bb3cf335SAnton Altaparmakov * Copyright (c) 2001-2005 Anton Altaparmakov 61da177e4SLinus Torvalds * Copyright (C) 2002 Richard Russon 71da177e4SLinus Torvalds * 81da177e4SLinus Torvalds * This program/include file is free software; you can redistribute it and/or 91da177e4SLinus Torvalds * modify it under the terms of the GNU General Public License as published 101da177e4SLinus Torvalds * by the Free Software Foundation; either version 2 of the License, or 111da177e4SLinus Torvalds * (at your option) any later version. 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * This program/include file is distributed in the hope that it will be 141da177e4SLinus Torvalds * useful, but WITHOUT ANY WARRANTY; without even the implied warranty 151da177e4SLinus Torvalds * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 161da177e4SLinus Torvalds * GNU General Public License for more details. 171da177e4SLinus Torvalds * 181da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License 191da177e4SLinus Torvalds * along with this program (in the main directory of the Linux-NTFS 201da177e4SLinus Torvalds * distribution in the file COPYING); if not, write to the Free Software 211da177e4SLinus Torvalds * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 221da177e4SLinus Torvalds */ 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds #ifndef _LINUX_NTFS_H 251da177e4SLinus Torvalds #define _LINUX_NTFS_H 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds #include <linux/stddef.h> 281da177e4SLinus Torvalds #include <linux/kernel.h> 291da177e4SLinus Torvalds #include <linux/module.h> 301da177e4SLinus Torvalds #include <linux/compiler.h> 311da177e4SLinus Torvalds #include <linux/fs.h> 321da177e4SLinus Torvalds #include <linux/nls.h> 331da177e4SLinus Torvalds #include <linux/smp.h> 347fafb8b6SAnton Altaparmakov #include <linux/pagemap.h> 351da177e4SLinus Torvalds 361da177e4SLinus Torvalds #include "types.h" 371da177e4SLinus Torvalds #include "volume.h" 381da177e4SLinus Torvalds #include "layout.h" 391da177e4SLinus Torvalds 401da177e4SLinus Torvalds typedef enum { 411da177e4SLinus Torvalds NTFS_BLOCK_SIZE = 512, 421da177e4SLinus Torvalds NTFS_BLOCK_SIZE_BITS = 9, 431da177e4SLinus Torvalds NTFS_SB_MAGIC = 0x5346544e, /* 'NTFS' */ 441da177e4SLinus Torvalds NTFS_MAX_NAME_LEN = 255, 45bb3cf335SAnton Altaparmakov NTFS_MAX_ATTR_NAME_LEN = 255, 467fafb8b6SAnton Altaparmakov NTFS_MAX_CLUSTER_SIZE = 64 * 1024, /* 64kiB */ 477fafb8b6SAnton Altaparmakov NTFS_MAX_PAGES_PER_CLUSTER = NTFS_MAX_CLUSTER_SIZE / PAGE_CACHE_SIZE, 481da177e4SLinus Torvalds } NTFS_CONSTANTS; 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds /* Global variables. */ 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds /* Slab caches (from super.c). */ 5364419d93SPekka Enberg extern struct kmem_cache *ntfs_name_cache; 5464419d93SPekka Enberg extern struct kmem_cache *ntfs_inode_cache; 5564419d93SPekka Enberg extern struct kmem_cache *ntfs_big_inode_cache; 5664419d93SPekka Enberg extern struct kmem_cache *ntfs_attr_ctx_cache; 5764419d93SPekka Enberg extern struct kmem_cache *ntfs_index_ctx_cache; 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds /* The various operations structs defined throughout the driver files. */ 601da177e4SLinus Torvalds extern struct address_space_operations ntfs_aops; 611da177e4SLinus Torvalds extern struct address_space_operations ntfs_mst_aops; 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds extern struct file_operations ntfs_file_ops; 641da177e4SLinus Torvalds extern struct inode_operations ntfs_file_inode_ops; 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds extern struct file_operations ntfs_dir_ops; 671da177e4SLinus Torvalds extern struct inode_operations ntfs_dir_inode_ops; 681da177e4SLinus Torvalds 691da177e4SLinus Torvalds extern struct file_operations ntfs_empty_file_ops; 701da177e4SLinus Torvalds extern struct inode_operations ntfs_empty_inode_ops; 711da177e4SLinus Torvalds 7241382686SAnton Altaparmakov extern struct export_operations ntfs_export_ops; 7341382686SAnton Altaparmakov 741da177e4SLinus Torvalds /** 751da177e4SLinus Torvalds * NTFS_SB - return the ntfs volume given a vfs super block 761da177e4SLinus Torvalds * @sb: VFS super block 771da177e4SLinus Torvalds * 781da177e4SLinus Torvalds * NTFS_SB() returns the ntfs volume associated with the VFS super block @sb. 791da177e4SLinus Torvalds */ 801da177e4SLinus Torvalds static inline ntfs_volume *NTFS_SB(struct super_block *sb) 811da177e4SLinus Torvalds { 821da177e4SLinus Torvalds return sb->s_fs_info; 831da177e4SLinus Torvalds } 841da177e4SLinus Torvalds 851da177e4SLinus Torvalds /* Declarations of functions and global variables. */ 861da177e4SLinus Torvalds 871da177e4SLinus Torvalds /* From fs/ntfs/compress.c */ 881da177e4SLinus Torvalds extern int ntfs_read_compressed_block(struct page *page); 891da177e4SLinus Torvalds extern int allocate_compression_buffers(void); 901da177e4SLinus Torvalds extern void free_compression_buffers(void); 911da177e4SLinus Torvalds 921da177e4SLinus Torvalds /* From fs/ntfs/super.c */ 931da177e4SLinus Torvalds #define default_upcase_len 0x10000 944e5e529aSIngo Molnar extern struct mutex ntfs_lock; 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds typedef struct { 971da177e4SLinus Torvalds int val; 981da177e4SLinus Torvalds char *str; 991da177e4SLinus Torvalds } option_t; 1001da177e4SLinus Torvalds extern const option_t on_errors_arr[]; 1011da177e4SLinus Torvalds 1021da177e4SLinus Torvalds /* From fs/ntfs/mst.c */ 1031da177e4SLinus Torvalds extern int post_read_mst_fixup(NTFS_RECORD *b, const u32 size); 1041da177e4SLinus Torvalds extern int pre_write_mst_fixup(NTFS_RECORD *b, const u32 size); 1051da177e4SLinus Torvalds extern void post_write_mst_fixup(NTFS_RECORD *b); 1061da177e4SLinus Torvalds 1071da177e4SLinus Torvalds /* From fs/ntfs/unistr.c */ 1081da177e4SLinus Torvalds extern BOOL ntfs_are_names_equal(const ntfschar *s1, size_t s1_len, 1091da177e4SLinus Torvalds const ntfschar *s2, size_t s2_len, 1101da177e4SLinus Torvalds const IGNORE_CASE_BOOL ic, 1111da177e4SLinus Torvalds const ntfschar *upcase, const u32 upcase_size); 1121da177e4SLinus Torvalds extern int ntfs_collate_names(const ntfschar *name1, const u32 name1_len, 1131da177e4SLinus Torvalds const ntfschar *name2, const u32 name2_len, 1141da177e4SLinus Torvalds const int err_val, const IGNORE_CASE_BOOL ic, 1151da177e4SLinus Torvalds const ntfschar *upcase, const u32 upcase_len); 1161da177e4SLinus Torvalds extern int ntfs_ucsncmp(const ntfschar *s1, const ntfschar *s2, size_t n); 1171da177e4SLinus Torvalds extern int ntfs_ucsncasecmp(const ntfschar *s1, const ntfschar *s2, size_t n, 1181da177e4SLinus Torvalds const ntfschar *upcase, const u32 upcase_size); 1191da177e4SLinus Torvalds extern void ntfs_upcase_name(ntfschar *name, u32 name_len, 1201da177e4SLinus Torvalds const ntfschar *upcase, const u32 upcase_len); 1211da177e4SLinus Torvalds extern void ntfs_file_upcase_value(FILE_NAME_ATTR *file_name_attr, 1221da177e4SLinus Torvalds const ntfschar *upcase, const u32 upcase_len); 1231da177e4SLinus Torvalds extern int ntfs_file_compare_values(FILE_NAME_ATTR *file_name_attr1, 1241da177e4SLinus Torvalds FILE_NAME_ATTR *file_name_attr2, 1251da177e4SLinus Torvalds const int err_val, const IGNORE_CASE_BOOL ic, 1261da177e4SLinus Torvalds const ntfschar *upcase, const u32 upcase_len); 1271da177e4SLinus Torvalds extern int ntfs_nlstoucs(const ntfs_volume *vol, const char *ins, 1281da177e4SLinus Torvalds const int ins_len, ntfschar **outs); 1291da177e4SLinus Torvalds extern int ntfs_ucstonls(const ntfs_volume *vol, const ntfschar *ins, 1301da177e4SLinus Torvalds const int ins_len, unsigned char **outs, int outs_len); 1311da177e4SLinus Torvalds 1321da177e4SLinus Torvalds /* From fs/ntfs/upcase.c */ 1331da177e4SLinus Torvalds extern ntfschar *generate_default_upcase(void); 1341da177e4SLinus Torvalds 1351da177e4SLinus Torvalds #endif /* _LINUX_NTFS_H */ 136