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; 137 138 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