fsck.h revision 3c85e737308ef95629b232745d6a8d141d87cc9a 
1/**
2 * fsck.h
3 *
4 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
5 *             http://www.samsung.com/
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef _FSCK_H_
12#define _FSCK_H_
13
14#include "f2fs.h"
15
16/* fsck.c */
17struct orphan_info {
18	u32 nr_inodes;
19	u32 *ino_list;
20};
21
22struct f2fs_fsck {
23	struct f2fs_sb_info sbi;
24
25	struct orphan_info orphani;
26	struct chk_result {
27		u64 valid_blk_cnt;
28		u32 valid_nat_entry_cnt;
29		u32 valid_node_cnt;
30		u32 valid_inode_cnt;
31		u32 multi_hard_link_files;
32		u64 sit_valid_blocks;
33		u32 sit_free_segs;
34	} chk;
35
36	struct hard_link_node *hard_link_list_head;
37
38	char *main_seg_usage;
39	char *main_area_bitmap;
40	char *nat_area_bitmap;
41	char *sit_area_bitmap;
42
43	u64 main_area_bitmap_sz;
44	u32 nat_area_bitmap_sz;
45	u32 sit_area_bitmap_sz;
46
47	u64 nr_main_blks;
48	u32 nr_nat_entries;
49
50	u32 dentry_depth;
51};
52
53#define BLOCK_SZ		4096
54struct block {
55	unsigned char buf[BLOCK_SZ];
56};
57
58enum NODE_TYPE {
59	TYPE_INODE = 37,
60	TYPE_DIRECT_NODE = 43,
61	TYPE_INDIRECT_NODE = 53,
62	TYPE_DOUBLE_INDIRECT_NODE = 67
63};
64
65struct hard_link_node {
66	u32 nid;
67	u32 links;
68	struct hard_link_node *next;
69};
70
71enum seg_type {
72	SEG_TYPE_DATA,
73	SEG_TYPE_CUR_DATA,
74	SEG_TYPE_NODE,
75	SEG_TYPE_CUR_NODE,
76	SEG_TYPE_MAX,
77};
78
79extern int fsck_chk_xattr_blk(struct f2fs_sb_info *sbi, u32 ino, u32 x_nid, u32 *blk_cnt);
80extern int fsck_chk_orphan_node(struct f2fs_sb_info *sbi);
81
82extern int fsck_chk_node_blk(struct f2fs_sb_info *sbi,
83		struct f2fs_inode *inode,
84		u32 nid,
85		enum FILE_TYPE ftype,
86		enum NODE_TYPE ntype,
87		u32 *blk_cnt);
88
89extern int fsck_chk_inode_blk(struct f2fs_sb_info *sbi,
90		u32 nid,
91		enum FILE_TYPE ftype,
92		struct f2fs_node *node_blk,
93		u32 *blk_cnt,
94		struct node_info *ni);
95
96extern int fsck_chk_dnode_blk(struct f2fs_sb_info *sbi,
97		struct f2fs_inode *inode,
98		u32 nid,
99		enum FILE_TYPE ftype,
100		struct f2fs_node *node_blk,
101		u32 *blk_cnt,
102		struct node_info *ni);
103
104extern int fsck_chk_idnode_blk(struct f2fs_sb_info *sbi,
105		struct f2fs_inode *inode,
106		enum FILE_TYPE ftype,
107		struct f2fs_node *node_blk,
108		u32 *blk_cnt);
109
110extern int fsck_chk_didnode_blk(struct f2fs_sb_info *sbi,
111		struct f2fs_inode *inode,
112		enum FILE_TYPE ftype,
113		struct f2fs_node *node_blk,
114		u32 *blk_cnt);
115
116extern int fsck_chk_data_blk(struct f2fs_sb_info *sbi,
117		u32 blk_addr,
118		u32 *child_cnt,
119		u32 *child_files,
120		int last_blk,
121		enum FILE_TYPE ftype,
122		u32 parent_nid,
123		u16 idx_in_node,
124		u8 ver);
125
126extern int fsck_chk_dentry_blk(struct f2fs_sb_info *sbi,
127		u32 blk_addr,
128		u32 *child_cnt,
129		u32 *child_files,
130		int last_blk);
131
132extern void print_node_info(struct f2fs_node *node_block);
133extern void print_inode_info(struct f2fs_inode *inode);
134extern struct seg_entry *get_seg_entry(struct f2fs_sb_info *sbi, unsigned int segno);
135extern int get_sum_block(struct f2fs_sb_info *sbi, unsigned int segno, struct f2fs_summary_block *sum_blk);
136extern int get_sum_entry(struct f2fs_sb_info *sbi, u32 blk_addr, struct f2fs_summary *sum_entry);
137extern int get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni);
138extern void build_nat_area_bitmap(struct f2fs_sb_info *sbi);
139extern int build_sit_area_bitmap(struct f2fs_sb_info *sbi);
140extern int fsck_init(struct f2fs_sb_info *sbi);
141extern int fsck_verify(struct f2fs_sb_info *sbi);
142extern void fsck_free(struct f2fs_sb_info *sbi);
143extern int f2fs_do_mount(struct f2fs_sb_info *sbi);
144extern void f2fs_do_umount(struct f2fs_sb_info *sbi);
145
146/* dump.c */
147struct dump_option {
148	nid_t nid;
149	int start_sit;
150	int end_sit;
151	int start_ssa;
152	int end_ssa;
153	int32_t blk_addr;
154};
155
156extern void sit_dump(struct f2fs_sb_info *sbi, int start_sit, int end_sit);
157extern void ssa_dump(struct f2fs_sb_info *sbi, int start_ssa, int end_ssa);
158extern int dump_node(struct f2fs_sb_info *sbi, nid_t nid);
159extern int dump_inode_from_blkaddr(struct f2fs_sb_info *sbi, u32 blk_addr);
160
161#endif /* _FSCK_H_ */
162