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 struct quota_ctx;
17
18 #define FSCK_UNMATCHED_EXTENT 0x00000001
19 #define FSCK_INLINE_INODE 0x00000002
20
21 enum {
22 PREEN_MODE_0,
23 PREEN_MODE_1,
24 PREEN_MODE_2,
25 PREEN_MODE_MAX
26 };
27
28 enum {
29 NOERROR,
30 EWRONG_OPT,
31 ENEED_ARG,
32 EUNKNOWN_OPT,
33 EUNKNOWN_ARG,
34 };
35
36 enum SB_ADDR {
37 SB0_ADDR = 0,
38 SB1_ADDR,
39 SB_MAX_ADDR,
40 };
41
42 #define SB_MASK(i) (1 << i)
43 #define SB_MASK_ALL (SB_MASK(SB0_ADDR) | SB_MASK(SB1_ADDR))
44
45 /* fsck.c */
46 struct orphan_info {
47 u32 nr_inodes;
48 u32 *ino_list;
49 };
50
51 struct extent_info {
52 u32 fofs; /* start offset in a file */
53 u32 blk; /* start block address of the extent */
54 u32 len; /* length of the extent */
55 };
56
57 struct child_info {
58 u32 state;
59 u32 links;
60 u32 files;
61 u32 pgofs;
62 u8 dots;
63 u8 dir_level;
64 u32 p_ino; /*parent ino*/
65 u32 pp_ino; /*parent parent ino*/
66 struct extent_info ei;
67 u32 last_blk;
68 u32 i_namelen; /* dentry namelen */
69 };
70
71 struct f2fs_fsck {
72 struct f2fs_sb_info sbi;
73
74 struct orphan_info orphani;
75 struct chk_result {
76 u64 valid_blk_cnt;
77 u32 valid_nat_entry_cnt;
78 u32 valid_node_cnt;
79 u32 valid_inode_cnt;
80 u32 multi_hard_link_files;
81 u64 sit_valid_blocks;
82 u32 sit_free_segs;
83 u32 wp_fixed;
84 u32 wp_inconsistent_zones;
85 } chk;
86
87 struct hard_link_node *hard_link_list_head;
88
89 char *main_seg_usage;
90 char *main_area_bitmap;
91 char *nat_area_bitmap;
92 char *sit_area_bitmap;
93
94 u64 main_area_bitmap_sz;
95 u32 nat_area_bitmap_sz;
96 u32 sit_area_bitmap_sz;
97
98 u64 nr_main_blks;
99 u32 nr_nat_entries;
100
101 u32 dentry_depth;
102 struct f2fs_nat_entry *entries;
103 u32 nat_valid_inode_cnt;
104
105 struct quota_ctx *qctx;
106 };
107
108 #define BLOCK_SZ 4096
109 struct block {
110 unsigned char buf[BLOCK_SZ];
111 };
112
113 enum NODE_TYPE {
114 TYPE_INODE = 37,
115 TYPE_DIRECT_NODE = 43,
116 TYPE_INDIRECT_NODE = 53,
117 TYPE_DOUBLE_INDIRECT_NODE = 67,
118 TYPE_XATTR = 77
119 };
120
121 struct hard_link_node {
122 u32 nid;
123 u32 links;
124 u32 actual_links;
125 struct hard_link_node *next;
126 };
127
128 enum seg_type {
129 SEG_TYPE_DATA,
130 SEG_TYPE_CUR_DATA,
131 SEG_TYPE_NODE,
132 SEG_TYPE_CUR_NODE,
133 SEG_TYPE_MAX,
134 };
135
136 struct selabel_handle;
137
need_fsync_data_record(struct f2fs_sb_info * sbi)138 static inline bool need_fsync_data_record(struct f2fs_sb_info *sbi)
139 {
140 return !is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) ||
141 c.zoned_model == F2FS_ZONED_HM;
142 }
143
144 extern int fsck_chk_orphan_node(struct f2fs_sb_info *);
145 extern int fsck_chk_quota_node(struct f2fs_sb_info *);
146 extern int fsck_chk_quota_files(struct f2fs_sb_info *);
147 extern int fsck_sanity_check_nid(struct f2fs_sb_info *, u32,
148 struct f2fs_node *, enum FILE_TYPE, enum NODE_TYPE,
149 struct node_info *);
150 extern int fsck_chk_node_blk(struct f2fs_sb_info *, struct f2fs_inode *, u32,
151 enum FILE_TYPE, enum NODE_TYPE, u32 *,
152 struct child_info *);
153 extern void fsck_chk_inode_blk(struct f2fs_sb_info *, u32, enum FILE_TYPE,
154 struct f2fs_node *, u32 *, struct node_info *, struct child_info *);
155 extern int fsck_chk_dnode_blk(struct f2fs_sb_info *, struct f2fs_inode *,
156 u32, enum FILE_TYPE, struct f2fs_node *, u32 *,
157 struct child_info *, struct node_info *);
158 extern int fsck_chk_idnode_blk(struct f2fs_sb_info *, struct f2fs_inode *,
159 enum FILE_TYPE, struct f2fs_node *, u32 *, struct child_info *);
160 extern int fsck_chk_didnode_blk(struct f2fs_sb_info *, struct f2fs_inode *,
161 enum FILE_TYPE, struct f2fs_node *, u32 *, struct child_info *);
162 extern int fsck_chk_data_blk(struct f2fs_sb_info *, int,
163 u32, struct child_info *, int, enum FILE_TYPE, u32, u16, u8, int);
164 extern int fsck_chk_dentry_blk(struct f2fs_sb_info *, int,
165 u32, struct child_info *, int, int);
166 int fsck_chk_inline_dentries(struct f2fs_sb_info *, struct f2fs_node *,
167 struct child_info *);
168 void fsck_chk_checkpoint(struct f2fs_sb_info *sbi);
169 int fsck_chk_meta(struct f2fs_sb_info *sbi);
170 void fsck_chk_and_fix_write_pointers(struct f2fs_sb_info *);
171 int fsck_chk_curseg_info(struct f2fs_sb_info *);
172 void pretty_print_filename(const u8 *raw_name, u32 len,
173 char out[F2FS_PRINT_NAMELEN], int enc_name);
174
175 extern void update_free_segments(struct f2fs_sb_info *);
176 void print_cp_state(u32);
177 extern void print_node_info(struct f2fs_sb_info *, struct f2fs_node *, int);
178 extern void print_inode_info(struct f2fs_sb_info *, struct f2fs_node *, int);
179 extern struct seg_entry *get_seg_entry(struct f2fs_sb_info *, unsigned int);
180 extern struct f2fs_summary_block *get_sum_block(struct f2fs_sb_info *,
181 unsigned int, int *);
182 extern int get_sum_entry(struct f2fs_sb_info *, u32, struct f2fs_summary *);
183 extern void update_sum_entry(struct f2fs_sb_info *, block_t,
184 struct f2fs_summary *);
185 extern void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
186 extern void nullify_nat_entry(struct f2fs_sb_info *, u32);
187 extern void rewrite_sit_area_bitmap(struct f2fs_sb_info *);
188 extern void build_nat_area_bitmap(struct f2fs_sb_info *);
189 extern void build_sit_area_bitmap(struct f2fs_sb_info *);
190 extern int f2fs_set_main_bitmap(struct f2fs_sb_info *, u32, int);
191 extern int f2fs_set_sit_bitmap(struct f2fs_sb_info *, u32);
192 extern void fsck_init(struct f2fs_sb_info *);
193 extern int fsck_verify(struct f2fs_sb_info *);
194 extern void fsck_free(struct f2fs_sb_info *);
195 extern int f2fs_ra_meta_pages(struct f2fs_sb_info *, block_t, int, int);
196 extern int f2fs_do_mount(struct f2fs_sb_info *);
197 extern void f2fs_do_umount(struct f2fs_sb_info *);
198 extern int f2fs_sparse_initialize_meta(struct f2fs_sb_info *);
199
200 extern void flush_journal_entries(struct f2fs_sb_info *);
201 extern void update_curseg_info(struct f2fs_sb_info *, int);
202 extern void zero_journal_entries(struct f2fs_sb_info *);
203 extern void flush_sit_entries(struct f2fs_sb_info *);
204 extern void move_curseg_info(struct f2fs_sb_info *, u64, int);
205 extern void write_curseg_info(struct f2fs_sb_info *);
206 extern int find_next_free_block(struct f2fs_sb_info *, u64 *, int, int, bool);
207 extern void duplicate_checkpoint(struct f2fs_sb_info *);
208 extern void write_checkpoint(struct f2fs_sb_info *);
209 extern void write_checkpoints(struct f2fs_sb_info *);
210 extern void update_superblock(struct f2fs_super_block *, int);
211 extern void update_data_blkaddr(struct f2fs_sb_info *, nid_t, u16, block_t);
212 extern void update_nat_blkaddr(struct f2fs_sb_info *, nid_t, nid_t, block_t);
213
214 extern void print_raw_sb_info(struct f2fs_super_block *);
215 extern pgoff_t current_nat_addr(struct f2fs_sb_info *, nid_t, int *);
216
217 extern u32 get_free_segments(struct f2fs_sb_info *);
218 extern void get_current_sit_page(struct f2fs_sb_info *,
219 unsigned int, struct f2fs_sit_block *);
220 extern void rewrite_current_sit_page(struct f2fs_sb_info *, unsigned int,
221 struct f2fs_sit_block *);
222
223 extern u32 update_nat_bits_flags(struct f2fs_super_block *,
224 struct f2fs_checkpoint *, u32);
225 extern void write_nat_bits(struct f2fs_sb_info *, struct f2fs_super_block *,
226 struct f2fs_checkpoint *, int);
227
228 /* dump.c */
229 struct dump_option {
230 nid_t nid;
231 nid_t start_nat;
232 nid_t end_nat;
233 int start_sit;
234 int end_sit;
235 int start_ssa;
236 int end_ssa;
237 int32_t blk_addr;
238 };
239
240 extern void nat_dump(struct f2fs_sb_info *, nid_t, nid_t);
241 extern void sit_dump(struct f2fs_sb_info *, unsigned int, unsigned int);
242 extern void ssa_dump(struct f2fs_sb_info *, int, int);
243 extern void dump_node(struct f2fs_sb_info *, nid_t, int);
244 extern int dump_info_from_blkaddr(struct f2fs_sb_info *, u32);
245 extern unsigned int start_bidx_of_node(unsigned int, struct f2fs_node *);
246
247
248 /* defrag.c */
249 int f2fs_defragment(struct f2fs_sb_info *, u64, u64, u64, int);
250
251 /* resize.c */
252 int f2fs_resize(struct f2fs_sb_info *);
253
254 /* sload.c */
255 int f2fs_sload(struct f2fs_sb_info *);
256
257 /* segment.c */
258 int reserve_new_block(struct f2fs_sb_info *, block_t *,
259 struct f2fs_summary *, int, bool);
260 int new_data_block(struct f2fs_sb_info *, void *,
261 struct dnode_of_data *, int);
262 int f2fs_build_file(struct f2fs_sb_info *, struct dentry *);
263 void f2fs_alloc_nid(struct f2fs_sb_info *, nid_t *);
264 void set_data_blkaddr(struct dnode_of_data *);
265 block_t new_node_block(struct f2fs_sb_info *,
266 struct dnode_of_data *, unsigned int);
267
268 /* segment.c */
269 u64 f2fs_read(struct f2fs_sb_info *, nid_t, u8 *, u64, pgoff_t);
270 u64 f2fs_write(struct f2fs_sb_info *, nid_t, u8 *, u64, pgoff_t);
271 void f2fs_filesize_update(struct f2fs_sb_info *, nid_t, u64);
272
273 int get_dnode_of_data(struct f2fs_sb_info *, struct dnode_of_data *,
274 pgoff_t, int);
275 void make_dentry_ptr(struct f2fs_dentry_ptr *, struct f2fs_node *, void *, int);
276 int f2fs_create(struct f2fs_sb_info *, struct dentry *);
277 int f2fs_mkdir(struct f2fs_sb_info *, struct dentry *);
278 int f2fs_symlink(struct f2fs_sb_info *, struct dentry *);
279 int inode_set_selinux(struct f2fs_sb_info *, u32, const char *);
280 int f2fs_find_path(struct f2fs_sb_info *, char *, nid_t *);
281 nid_t f2fs_lookup(struct f2fs_sb_info *, struct f2fs_node *, u8 *, int);
282 int f2fs_add_link(struct f2fs_sb_info *, struct f2fs_node *,
283 const unsigned char *, int, nid_t, int, block_t, int);
284
285 /* xattr.c */
286 void *read_all_xattrs(struct f2fs_sb_info *, struct f2fs_node *);
287
288 #endif /* _FSCK_H_ */
289