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192.168.1.100 / T106_DC / d69b50cb706499c7493c82768765eb13779bfc7d / . / ap / app / e2fsprogs / e2fsprogs-1.42.9 / lib / ext2fs / ext2fsP.h
blob: a88db93e2937538f76ae0f954aea2781aa5ae094 [file] [log] [blame]
lh9ed821d2023-04-07 01:36:19 -0700[diff] [blame]1/*
2 * ext2fsP.h --- private header file for ext2 library
3 *
4 * Copyright (C) 1997 Theodore Ts'o.
5 *
6 * %Begin-Header%
7 * This file may be redistributed under the terms of the GNU Library
8 * General Public License, version 2.
9 * %End-Header%
10 */
11
12#include "ext2fs.h"
13
14#define EXT2FS_MAX_NESTED_LINKS 8
15
16/*
17 * Badblocks list
18 */
19struct ext2_struct_u32_list {
20 int magic;
21 int num;
22 int size;
23 __u32 *list;
24 int badblocks_flags;
25};
26
27struct ext2_struct_u32_iterate {
28 int magic;
29 ext2_u32_list bb;
30 int ptr;
31};
32
33
34/*
35 * Directory block iterator definition
36 */
37struct ext2_struct_dblist {
38 int magic;
39 ext2_filsys fs;
40 unsigned long long size;
41 unsigned long long count;
42 int sorted;
43 struct ext2_db_entry2 * list;
44};
45
46/*
47 * For directory iterators
48 */
49struct dir_context {
50 ext2_ino_t dir;
51 int flags;
52 char *buf;
53 int (*func)(ext2_ino_t dir,
54 int entry,
55 struct ext2_dir_entry *dirent,
56 int offset,
57 int blocksize,
58 char *buf,
59 void *priv_data);
60 void *priv_data;
61 errcode_t errcode;
62};
63
64/*
65 * Inode cache structure
66 */
67struct ext2_inode_cache {
68 void * buffer;
69 blk64_t buffer_blk;
70 int cache_last;
71 int cache_size;
72 int refcount;
73 struct ext2_inode_cache_ent *cache;
74};
75
76struct ext2_inode_cache_ent {
77 ext2_ino_t ino;
78 struct ext2_inode inode;
79};
80
81/* Function prototypes */
82
83extern int ext2fs_process_dir_block(ext2_filsys fs,
84 blk64_t *blocknr,
85 e2_blkcnt_t blockcnt,
86 blk64_t ref_block,
87 int ref_offset,
88 void *priv_data);
89
90/* Generic numeric progress meter */
91
92struct ext2fs_numeric_progress_struct {
93 __u64 max;
94 int log_max;
95 int skip_progress;
96};
97
98extern void ext2fs_numeric_progress_init(ext2_filsys fs,
99 struct ext2fs_numeric_progress_struct * progress,
100 const char *label, __u64 max);
101extern void ext2fs_numeric_progress_update(ext2_filsys fs,
102 struct ext2fs_numeric_progress_struct * progress,
103 __u64 val);
104extern void ext2fs_numeric_progress_close(ext2_filsys fs,
105 struct ext2fs_numeric_progress_struct * progress,
106 const char *message);
107
108/*
109 * 64-bit bitmap support
110 */
111
112extern errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
113 int type, __u64 start, __u64 end,
114 __u64 real_end,
115 const char * description,
116 ext2fs_generic_bitmap *bmap);
117
118extern void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
119
120extern errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
121 ext2fs_generic_bitmap *dest);
122
123extern errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
124 __u64 new_end,
125 __u64 new_real_end);
126extern errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
127 errcode_t neq,
128 __u64 end, __u64 *oend);
129extern int ext2fs_mark_generic_bmap(ext2fs_generic_bitmap bitmap,
130 __u64 arg);
131extern int ext2fs_unmark_generic_bmap(ext2fs_generic_bitmap bitmap,
132 __u64 arg);
133extern int ext2fs_test_generic_bmap(ext2fs_generic_bitmap bitmap,
134 __u64 arg);
135extern errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bitmap,
136 __u64 start, unsigned int num,
137 void *in);
138extern errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bitmap,
139 __u64 start, unsigned int num,
140 void *out);
141extern void ext2fs_warn_bitmap32(ext2fs_generic_bitmap bitmap,const char *func);
142
143extern int ext2fs_mem_is_zero(const char *mem, size_t len);
144
145extern int ext2fs_file_block_offset_too_big(ext2_filsys fs,
146 struct ext2_inode *inode,
147 blk64_t offset);