2 * ext2fsP.h --- private header file for ext2 library
4 * Copyright (C) 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Library
8 * General Public License, version 2.
18 #define EXT2FS_MAX_NESTED_LINKS 8
20 static inline int ext2fsP_is_disk_device(mode_t mode)
22 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
23 return S_ISBLK(mode) || S_ISCHR(mode);
32 struct ext2_struct_u32_list {
40 struct ext2_struct_u32_iterate {
48 * Directory block iterator definition
50 struct ext2_struct_dblist {
53 unsigned long long size;
54 unsigned long long count;
56 struct ext2_db_entry2 * list;
60 * For directory iterators
67 int (*func)(ext2_ino_t dir,
69 struct ext2_dir_entry *dirent,
79 * Inode cache structure
81 struct ext2_inode_cache {
85 unsigned int cache_size;
87 struct ext2_inode_cache_ent *cache;
90 struct ext2_inode_cache_ent {
92 struct ext2_inode *inode;
98 struct ext2fs_nls_table {
100 const struct ext2fs_nls_ops *ops;
103 struct ext2fs_nls_ops {
104 int (*casefold)(const struct ext2fs_nls_table *charset,
105 const unsigned char *str, size_t len,
106 unsigned char *dest, size_t dlen);
109 /* Function prototypes */
111 extern int ext2fs_process_dir_block(ext2_filsys fs,
113 e2_blkcnt_t blockcnt,
118 extern errcode_t ext2fs_inline_data_ea_remove(ext2_filsys fs, ext2_ino_t ino);
119 extern errcode_t ext2fs_inline_data_expand(ext2_filsys fs, ext2_ino_t ino);
120 extern int ext2fs_inline_data_dir_iterate(ext2_filsys fs,
124 /* Generic numeric progress meter */
126 struct ext2fs_numeric_progress_struct {
133 * progress callback functions
135 struct ext2fs_progress_ops {
136 void (*init)(ext2_filsys fs,
137 struct ext2fs_numeric_progress_struct * progress,
138 const char *label, __u64 max);
139 void (*update)(ext2_filsys fs,
140 struct ext2fs_numeric_progress_struct * progress,
142 void (*close)(ext2_filsys fs,
143 struct ext2fs_numeric_progress_struct * progress,
144 const char *message);
147 extern struct ext2fs_progress_ops ext2fs_numeric_progress_ops;
149 extern void ext2fs_numeric_progress_init(ext2_filsys fs,
150 struct ext2fs_numeric_progress_struct * progress,
151 const char *label, __u64 max);
152 extern void ext2fs_numeric_progress_update(ext2_filsys fs,
153 struct ext2fs_numeric_progress_struct * progress,
155 extern void ext2fs_numeric_progress_close(ext2_filsys fs,
156 struct ext2fs_numeric_progress_struct * progress,
157 const char *message);
160 * 64-bit bitmap support
163 extern errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
164 int type, __u64 start, __u64 end,
166 const char * description,
167 ext2fs_generic_bitmap *bmap);
169 extern void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
171 extern errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
172 ext2fs_generic_bitmap *dest);
174 extern errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
177 extern errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
179 __u64 end, __u64 *oend);
180 extern int ext2fs_mark_generic_bmap(ext2fs_generic_bitmap bitmap,
182 extern int ext2fs_unmark_generic_bmap(ext2fs_generic_bitmap bitmap,
184 extern int ext2fs_test_generic_bmap(ext2fs_generic_bitmap bitmap,
186 extern errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bitmap,
187 __u64 start, unsigned int num,
189 extern errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bitmap,
190 __u64 start, unsigned int num,
192 extern void ext2fs_warn_bitmap32(ext2fs_generic_bitmap bitmap,const char *func);
194 extern int ext2fs_mem_is_zero(const char *mem, size_t len);
196 extern int ext2fs_file_block_offset_too_big(ext2_filsys fs,
197 struct ext2_inode *inode,
201 typedef void (*ext2_exit_fn)(void *);
202 errcode_t ext2fs_add_exit_fn(ext2_exit_fn fn, void *data);
203 errcode_t ext2fs_remove_exit_fn(ext2_exit_fn fn, void *data);
205 #define EXT2FS_BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2*!!(cond)]))