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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 | /* * ntfs.h - Defines for NTFS Linux kernel driver. Part of the Linux-NTFS * project. * * Copyright (c) 2001-2005 Anton Altaparmakov * Copyright (C) 2002 Richard Russon * * This program/include file is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program/include file is distributed in the hope that it will be * useful, but WITHOUT ANY WARRANTY; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program (in the main directory of the Linux-NTFS * distribution in the file COPYING); if not, write to the Free Software * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_NTFS_H #define _LINUX_NTFS_H #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/compiler.h> #include <linux/fs.h> #include <linux/nls.h> #include <linux/smp.h> #include <linux/pagemap.h> #include "types.h" #include "volume.h" #include "layout.h" typedef enum { NTFS_BLOCK_SIZE = 512, NTFS_BLOCK_SIZE_BITS = 9, NTFS_SB_MAGIC = 0x5346544e, /* 'NTFS' */ NTFS_MAX_NAME_LEN = 255, NTFS_MAX_ATTR_NAME_LEN = 255, NTFS_MAX_CLUSTER_SIZE = 64 * 1024, /* 64kiB */ NTFS_MAX_PAGES_PER_CLUSTER = NTFS_MAX_CLUSTER_SIZE / PAGE_CACHE_SIZE, } NTFS_CONSTANTS; /* Global variables. */ /* Slab caches (from super.c). */ extern struct kmem_cache *ntfs_name_cache; extern struct kmem_cache *ntfs_inode_cache; extern struct kmem_cache *ntfs_big_inode_cache; extern struct kmem_cache *ntfs_attr_ctx_cache; extern struct kmem_cache *ntfs_index_ctx_cache; /* The various operations structs defined throughout the driver files. */ extern struct address_space_operations ntfs_aops; extern struct address_space_operations ntfs_mst_aops; extern const struct file_operations ntfs_file_ops; extern struct inode_operations ntfs_file_inode_ops; extern const struct file_operations ntfs_dir_ops; extern struct inode_operations ntfs_dir_inode_ops; extern const struct file_operations ntfs_empty_file_ops; extern struct inode_operations ntfs_empty_inode_ops; extern struct export_operations ntfs_export_ops; /** * NTFS_SB - return the ntfs volume given a vfs super block * @sb: VFS super block * * NTFS_SB() returns the ntfs volume associated with the VFS super block @sb. */ static inline ntfs_volume *NTFS_SB(struct super_block *sb) { return sb->s_fs_info; } /* Declarations of functions and global variables. */ /* From fs/ntfs/compress.c */ extern int ntfs_read_compressed_block(struct page *page); extern int allocate_compression_buffers(void); extern void free_compression_buffers(void); /* From fs/ntfs/super.c */ #define default_upcase_len 0x10000 extern struct mutex ntfs_lock; typedef struct { int val; char *str; } option_t; extern const option_t on_errors_arr[]; /* From fs/ntfs/mst.c */ extern int post_read_mst_fixup(NTFS_RECORD *b, const u32 size); extern int pre_write_mst_fixup(NTFS_RECORD *b, const u32 size); extern void post_write_mst_fixup(NTFS_RECORD *b); /* From fs/ntfs/unistr.c */ extern BOOL ntfs_are_names_equal(const ntfschar *s1, size_t s1_len, const ntfschar *s2, size_t s2_len, const IGNORE_CASE_BOOL ic, const ntfschar *upcase, const u32 upcase_size); extern int ntfs_collate_names(const ntfschar *name1, const u32 name1_len, const ntfschar *name2, const u32 name2_len, const int err_val, const IGNORE_CASE_BOOL ic, const ntfschar *upcase, const u32 upcase_len); extern int ntfs_ucsncmp(const ntfschar *s1, const ntfschar *s2, size_t n); extern int ntfs_ucsncasecmp(const ntfschar *s1, const ntfschar *s2, size_t n, const ntfschar *upcase, const u32 upcase_size); extern void ntfs_upcase_name(ntfschar *name, u32 name_len, const ntfschar *upcase, const u32 upcase_len); extern void ntfs_file_upcase_value(FILE_NAME_ATTR *file_name_attr, const ntfschar *upcase, const u32 upcase_len); extern int ntfs_file_compare_values(FILE_NAME_ATTR *file_name_attr1, FILE_NAME_ATTR *file_name_attr2, const int err_val, const IGNORE_CASE_BOOL ic, const ntfschar *upcase, const u32 upcase_len); extern int ntfs_nlstoucs(const ntfs_volume *vol, const char *ins, const int ins_len, ntfschar **outs); extern int ntfs_ucstonls(const ntfs_volume *vol, const ntfschar *ins, const int ins_len, unsigned char **outs, int outs_len); /* From fs/ntfs/upcase.c */ extern ntfschar *generate_default_upcase(void); static inline int ntfs_ffs(int x) { int r = 1; if (!x) return 0; if (!(x & 0xffff)) { x >>= 16; r += 16; } if (!(x & 0xff)) { x >>= 8; r += 8; } if (!(x & 0xf)) { x >>= 4; r += 4; } if (!(x & 3)) { x >>= 2; r += 2; } if (!(x & 1)) { x >>= 1; r += 1; } return r; } #endif /* _LINUX_NTFS_H */ |