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 {
39 struct ext2_struct_u32_iterate {
47 * Directory block iterator definition
49 struct ext2_struct_dblist {
52 unsigned long long size;
53 unsigned long long count;
55 struct ext2_db_entry2 * list;
59 * For directory iterators
66 int (*func)(ext2_ino_t dir,
68 struct ext2_dir_entry *dirent,
78 * Inode cache structure
80 struct ext2_inode_cache {
84 unsigned int cache_size;
86 struct ext2_inode_cache_ent *cache;
89 struct ext2_inode_cache_ent {
91 struct ext2_inode *inode;
97 struct ext2fs_nls_table {
99 const struct ext2fs_nls_ops *ops;
102 struct ext2fs_nls_ops {
103 int (*casefold)(const struct ext2fs_nls_table *charset,
104 const unsigned char *str, size_t len,
105 unsigned char *dest, size_t dlen);
106 int (*validate)(const struct ext2fs_nls_table *table,
107 char *s, size_t len, char **pos);
108 int (*casefold_cmp)(const struct ext2fs_nls_table *table,
109 const unsigned char *str1, size_t len1,
110 const unsigned char *str2, size_t len2);
113 /* Function prototypes */
115 extern int ext2fs_process_dir_block(ext2_filsys fs,
117 e2_blkcnt_t blockcnt,
122 extern errcode_t ext2fs_inline_data_ea_remove(ext2_filsys fs, ext2_ino_t ino);
123 extern errcode_t ext2fs_inline_data_expand(ext2_filsys fs, ext2_ino_t ino);
124 extern int ext2fs_inline_data_dir_iterate(ext2_filsys fs,
128 /* Generic numeric progress meter */
130 struct ext2fs_numeric_progress_struct {
137 * progress callback functions
139 struct ext2fs_progress_ops {
140 void (*init)(ext2_filsys fs,
141 struct ext2fs_numeric_progress_struct * progress,
142 const char *label, __u64 max);
143 void (*update)(ext2_filsys fs,
144 struct ext2fs_numeric_progress_struct * progress,
146 void (*close)(ext2_filsys fs,
147 struct ext2fs_numeric_progress_struct * progress,
148 const char *message);
151 extern struct ext2fs_progress_ops ext2fs_numeric_progress_ops;
153 extern void ext2fs_numeric_progress_init(ext2_filsys fs,
154 struct ext2fs_numeric_progress_struct * progress,
155 const char *label, __u64 max);
156 extern void ext2fs_numeric_progress_update(ext2_filsys fs,
157 struct ext2fs_numeric_progress_struct * progress,
159 extern void ext2fs_numeric_progress_close(ext2_filsys fs,
160 struct ext2fs_numeric_progress_struct * progress,
161 const char *message);
164 * 64-bit bitmap support
167 extern errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
168 int type, __u64 start, __u64 end,
170 const char * description,
171 ext2fs_generic_bitmap *bmap);
173 extern void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
175 extern errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
176 ext2fs_generic_bitmap *dest);
178 extern errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
181 extern errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
183 __u64 end, __u64 *oend);
184 extern int ext2fs_mark_generic_bmap(ext2fs_generic_bitmap bitmap,
186 extern int ext2fs_unmark_generic_bmap(ext2fs_generic_bitmap bitmap,
188 extern int ext2fs_test_generic_bmap(ext2fs_generic_bitmap bitmap,
190 extern errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bitmap,
191 __u64 start, unsigned int num,
193 extern errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bitmap,
194 __u64 start, unsigned int num,
196 extern void ext2fs_warn_bitmap32(ext2fs_generic_bitmap bitmap,const char *func);
198 extern int ext2fs_mem_is_zero(const char *mem, size_t len);
200 extern int ext2fs_file_block_offset_too_big(ext2_filsys fs,
201 struct ext2_inode *inode,
205 typedef void (*ext2_exit_fn)(void *);
206 errcode_t ext2fs_add_exit_fn(ext2_exit_fn fn, void *data);
207 errcode_t ext2fs_remove_exit_fn(ext2_exit_fn fn, void *data);
209 #define EXT2FS_BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2*!!(cond)]))