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 } chk; 84 85 struct hard_link_node *hard_link_list_head; 86 87 char *main_seg_usage; 88 char *main_area_bitmap; 89 char *nat_area_bitmap; 90 char *sit_area_bitmap; 91 92 u64 main_area_bitmap_sz; 93 u32 nat_area_bitmap_sz; 94 u32 sit_area_bitmap_sz; 95 96 u64 nr_main_blks; 97 u32 nr_nat_entries; 98 99 u32 dentry_depth; 100 struct f2fs_nat_entry *entries; 101 u32 nat_valid_inode_cnt; 102 103 struct quota_ctx *qctx; 104 }; 105 106 #define BLOCK_SZ 4096 107 struct block { 108 unsigned char buf[BLOCK_SZ]; 109 }; 110 111 enum NODE_TYPE { 112 TYPE_INODE = 37, 113 TYPE_DIRECT_NODE = 43, 114 TYPE_INDIRECT_NODE = 53, 115 TYPE_DOUBLE_INDIRECT_NODE = 67, 116 TYPE_XATTR = 77 117 }; 118 119 struct hard_link_node { 120 u32 nid; 121 u32 links; 122 u32 actual_links; 123 struct hard_link_node *next; 124 }; 125 126 enum seg_type { 127 SEG_TYPE_DATA, 128 SEG_TYPE_CUR_DATA, 129 SEG_TYPE_NODE, 130 SEG_TYPE_CUR_NODE, 131 SEG_TYPE_MAX, 132 }; 133 134 struct selabel_handle; 135 136 extern int fsck_chk_orphan_node(struct f2fs_sb_info *); 137 extern int fsck_chk_quota_node(struct f2fs_sb_info *); 138 extern int fsck_chk_quota_files(struct f2fs_sb_info *); 139 extern int fsck_chk_node_blk(struct f2fs_sb_info *, struct f2fs_inode *, u32, 140 enum FILE_TYPE, enum NODE_TYPE, u32 *, 141 struct child_info *); 142 extern void fsck_chk_inode_blk(struct f2fs_sb_info *, u32, enum FILE_TYPE, 143 struct f2fs_node *, u32 *, struct node_info *, struct child_info *); 144 extern int fsck_chk_dnode_blk(struct f2fs_sb_info *, struct f2fs_inode *, 145 u32, enum FILE_TYPE, struct f2fs_node *, u32 *, 146 struct child_info *, struct node_info *); 147 extern int fsck_chk_idnode_blk(struct f2fs_sb_info *, struct f2fs_inode *, 148 enum FILE_TYPE, struct f2fs_node *, u32 *, struct child_info *); 149 extern int fsck_chk_didnode_blk(struct f2fs_sb_info *, struct f2fs_inode *, 150 enum FILE_TYPE, struct f2fs_node *, u32 *, struct child_info *); 151 extern int fsck_chk_data_blk(struct f2fs_sb_info *sbi, u32, struct child_info *, 152 int, enum FILE_TYPE, u32, u16, u8, int); 153 extern int fsck_chk_dentry_blk(struct f2fs_sb_info *, u32, struct child_info *, 154 int, int); 155 int fsck_chk_inline_dentries(struct f2fs_sb_info *, struct f2fs_node *, 156 struct child_info *); 157 int fsck_chk_meta(struct f2fs_sb_info *sbi); 158 int fsck_chk_curseg_info(struct f2fs_sb_info *); 159 int convert_encrypted_name(unsigned char *, u32, unsigned char *, int); 160 161 extern void update_free_segments(struct f2fs_sb_info *); 162 void print_cp_state(u32); 163 extern void print_node_info(struct f2fs_sb_info *, struct f2fs_node *, int); 164 extern void print_inode_info(struct f2fs_sb_info *, struct f2fs_node *, int); 165 extern struct seg_entry *get_seg_entry(struct f2fs_sb_info *, unsigned int); 166 extern struct f2fs_summary_block *get_sum_block(struct f2fs_sb_info *, 167 unsigned int, int *); 168 extern int get_sum_entry(struct f2fs_sb_info *, u32, struct f2fs_summary *); 169 extern void update_sum_entry(struct f2fs_sb_info *, block_t, 170 struct f2fs_summary *); 171 extern void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *); 172 extern void nullify_nat_entry(struct f2fs_sb_info *, u32); 173 extern void rewrite_sit_area_bitmap(struct f2fs_sb_info *); 174 extern void build_nat_area_bitmap(struct f2fs_sb_info *); 175 extern void build_sit_area_bitmap(struct f2fs_sb_info *); 176 extern int f2fs_set_main_bitmap(struct f2fs_sb_info *, u32, int); 177 extern int f2fs_set_sit_bitmap(struct f2fs_sb_info *, u32); 178 extern void fsck_init(struct f2fs_sb_info *); 179 extern int fsck_verify(struct f2fs_sb_info *); 180 extern void fsck_free(struct f2fs_sb_info *); 181 extern int f2fs_do_mount(struct f2fs_sb_info *); 182 extern void f2fs_do_umount(struct f2fs_sb_info *); 183 184 extern void flush_journal_entries(struct f2fs_sb_info *); 185 extern void zero_journal_entries(struct f2fs_sb_info *); 186 extern void flush_sit_entries(struct f2fs_sb_info *); 187 extern void move_curseg_info(struct f2fs_sb_info *, u64, int); 188 extern void write_curseg_info(struct f2fs_sb_info *); 189 extern int find_next_free_block(struct f2fs_sb_info *, u64 *, int, int); 190 extern void write_checkpoint(struct f2fs_sb_info *); 191 extern void update_superblock(struct f2fs_super_block *, int); 192 extern void update_data_blkaddr(struct f2fs_sb_info *, nid_t, u16, block_t); 193 extern void update_nat_blkaddr(struct f2fs_sb_info *, nid_t, nid_t, block_t); 194 195 extern void print_raw_sb_info(struct f2fs_super_block *); 196 extern pgoff_t current_nat_addr(struct f2fs_sb_info *, nid_t, int *); 197 198 extern u32 get_free_segments(struct f2fs_sb_info *); 199 extern void get_current_sit_page(struct f2fs_sb_info *, 200 unsigned int, struct f2fs_sit_block *); 201 extern void rewrite_current_sit_page(struct f2fs_sb_info *, unsigned int, 202 struct f2fs_sit_block *); 203 204 extern u32 update_nat_bits_flags(struct f2fs_super_block *, 205 struct f2fs_checkpoint *, u32); 206 extern void write_nat_bits(struct f2fs_sb_info *, struct f2fs_super_block *, 207 struct f2fs_checkpoint *, int); 208 209 /* dump.c */ 210 struct dump_option { 211 nid_t nid; 212 nid_t start_nat; 213 nid_t end_nat; 214 int start_sit; 215 int end_sit; 216 int start_ssa; 217 int end_ssa; 218 int32_t blk_addr; 219 }; 220 221 extern void nat_dump(struct f2fs_sb_info *, nid_t, nid_t); 222 extern void sit_dump(struct f2fs_sb_info *, unsigned int, unsigned int); 223 extern void ssa_dump(struct f2fs_sb_info *, int, int); 224 extern void dump_node(struct f2fs_sb_info *, nid_t, int); 225 extern int dump_info_from_blkaddr(struct f2fs_sb_info *, u32); 226 227 /* defrag.c */ 228 int f2fs_defragment(struct f2fs_sb_info *, u64, u64, u64, int); 229 230 /* resize.c */ 231 int f2fs_resize(struct f2fs_sb_info *); 232 233 /* sload.c */ 234 int f2fs_sload(struct f2fs_sb_info *); 235 236 /* segment.c */ 237 void reserve_new_block(struct f2fs_sb_info *, block_t *, 238 struct f2fs_summary *, int); 239 int new_data_block(struct f2fs_sb_info *, void *, 240 struct dnode_of_data *, int); 241 int f2fs_build_file(struct f2fs_sb_info *, struct dentry *); 242 void f2fs_alloc_nid(struct f2fs_sb_info *, nid_t *, int); 243 void set_data_blkaddr(struct dnode_of_data *); 244 block_t new_node_block(struct f2fs_sb_info *, 245 struct dnode_of_data *, unsigned int); 246 247 /* segment.c */ 248 u64 f2fs_read(struct f2fs_sb_info *, nid_t, u8 *, u64, pgoff_t); 249 u64 f2fs_write(struct f2fs_sb_info *, nid_t, u8 *, u64, pgoff_t); 250 void f2fs_filesize_update(struct f2fs_sb_info *, nid_t, u64); 251 252 int get_dnode_of_data(struct f2fs_sb_info *, struct dnode_of_data *, 253 pgoff_t, int); 254 void make_dentry_ptr(struct f2fs_dentry_ptr *, struct f2fs_node *, void *, int); 255 int f2fs_create(struct f2fs_sb_info *, struct dentry *); 256 int f2fs_mkdir(struct f2fs_sb_info *, struct dentry *); 257 int f2fs_symlink(struct f2fs_sb_info *, struct dentry *); 258 int inode_set_selinux(struct f2fs_sb_info *, u32, const char *); 259 int f2fs_find_path(struct f2fs_sb_info *, char *, nid_t *); 260 nid_t f2fs_lookup(struct f2fs_sb_info *, struct f2fs_node *, u8 *, int); 261 int f2fs_add_link(struct f2fs_sb_info *, struct f2fs_node *, 262 const unsigned char *, int, nid_t, int, block_t, int); 263 264 /* xattr.c */ 265 void *read_all_xattrs(struct f2fs_sb_info *, struct f2fs_node *); 266 267 #endif /* _FSCK_H_ */ 268