4 * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
5 * redistributed under the terms of the GNU Public License.
16 #ifdef HAVE_SYS_TYPES_H
17 #include <sys/types.h>
19 #ifdef HAVE_SYS_TIME_H
26 #if EXT2_FLAT_INCLUDES
30 #include "ext2fs/ext2_fs.h"
31 #include "ext2fs/ext2fs.h"
37 #define _(a) (gettext (a))
39 #define N_(a) gettext_noop (a)
44 #define NLS_CAT_NAME "e2fsprogs"
45 #define LOCALEDIR "/usr/share/locale"
53 * Exit codes used by fsck-type programs
55 #define FSCK_OK 0 /* No errors */
56 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
57 #define FSCK_REBOOT 2 /* System should be rebooted */
58 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
59 #define FSCK_ERROR 8 /* Operational error */
60 #define FSCK_USAGE 16 /* Usage or syntax error */
61 #define FSCK_LIBRARY 128 /* Shared library error */
64 * The last ext2fs revision level that this version of e2fsck is able to
67 #define E2FSCK_CURRENT_REV 1
70 * The directory information structure; stores directory information
71 * collected in earlier passes, to avoid disk i/o in fetching the
72 * directory information.
75 ext2_ino_t ino; /* Inode number */
76 ext2_ino_t dotdot; /* Parent according to '..' */
77 ext2_ino_t parent; /* Parent according to treewalk */
82 * This structure is used for keeping track of how much resources have
83 * been used for a particular pass of e2fsck.
85 struct resource_track {
86 struct timeval time_start;
87 struct timeval user_start;
88 struct timeval system_start;
96 #define E2F_OPT_READONLY 0x0001
97 #define E2F_OPT_PREEN 0x0002
98 #define E2F_OPT_YES 0x0004
99 #define E2F_OPT_NO 0x0008
100 #define E2F_OPT_TIME 0x0010
101 #define E2F_OPT_TIME2 0x0020
102 #define E2F_OPT_CHECKBLOCKS 0x0040
103 #define E2F_OPT_DEBUG 0x0080
108 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
109 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
110 #define E2F_FLAG_SIGNAL_MASK 0x0003
111 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
113 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
115 #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
116 #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
117 #define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
118 #define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
119 * specified by the user */
122 * Defines for indicating the e2fsck pass number
129 #define E2F_PASS_1B 6
132 * Define the extended attribute refcount structure
134 typedef struct ea_refcount *ext2_refcount_t;
137 * This is the global e2fsck structure.
139 typedef struct e2fsck_struct *e2fsck_t;
141 struct e2fsck_struct {
143 const char *program_name;
144 const char *filesystem_name;
145 const char *device_name;
146 int flags; /* E2fsck internal flags */
148 blk_t use_superblock; /* sb requested by user */
149 blk_t superblock; /* sb used to open fs */
150 blk_t num_blocks; /* Total number of blocks */
155 unsigned long abort_code;
157 int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
160 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
161 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
162 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
163 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
164 ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
165 ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
167 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
168 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
169 ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
174 ext2_icount_t inode_count;
175 ext2_icount_t inode_link_info;
177 ext2_refcount_t refcount;
178 ext2_refcount_t refcount_extra;
181 * Array of flags indicating whether an inode bitmap, block
182 * bitmap, or inode table is invalid
184 int *invalid_inode_bitmap_flag;
185 int *invalid_block_bitmap_flag;
186 int *invalid_inode_table_flag;
187 int invalid_bitmaps; /* There are invalid bitmaps/itable */
195 * For pass1_check_directory and pass1_get_blocks
197 ext2_ino_t stashed_ino;
198 struct ext2_inode *stashed_inode;
201 * Directory information
205 struct dir_info *dir_info;
210 int process_inode_size;
211 int inode_buffer_blocks;
214 * ext3 journal support
216 io_channel journal_io;
217 const char *journal_name;
219 #ifdef RESOURCE_TRACK
221 * For timing purposes
223 struct resource_track global_rtrack;
227 * How we display the progress update (for unix)
231 int progress_last_percent;
232 unsigned int progress_last_time;
235 int fs_directory_count;
236 int fs_regular_count;
237 int fs_blockdev_count;
238 int fs_chardev_count;
240 int fs_symlinks_count;
241 int fs_fast_symlinks_count;
244 int fs_badblocks_count;
245 int fs_sockets_count;
251 int fs_ext_attr_inodes;
252 int fs_ext_attr_blocks;
255 * For the use of callers of the e2fsck functions; not used by
256 * e2fsck functions themselves.
261 /* Used by the region allocation code */
262 typedef __u32 region_addr_t;
263 typedef struct region_struct *region_t;
266 * Procedure declarations
269 extern void e2fsck_pass1(e2fsck_t ctx);
270 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
271 extern void e2fsck_pass2(e2fsck_t ctx);
272 extern void e2fsck_pass3(e2fsck_t ctx);
273 extern void e2fsck_pass4(e2fsck_t ctx);
274 extern void e2fsck_pass5(e2fsck_t ctx);
277 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
278 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
279 extern void e2fsck_free_context(e2fsck_t ctx);
280 extern int e2fsck_run(e2fsck_t ctx);
284 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
285 int replace_bad_blocks);
286 extern void test_disk(e2fsck_t ctx);
289 extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
290 extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino);
291 extern void e2fsck_free_dir_info(e2fsck_t ctx);
292 extern int e2fsck_get_num_dirs(e2fsck_t ctx);
293 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
294 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
297 extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
298 extern void ea_refcount_free(ext2_refcount_t refcount);
299 extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
301 extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
302 blk_t blk, int *ret);
303 extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
304 blk_t blk, int *ret);
305 extern errcode_t ea_refcount_store(ext2_refcount_t refcount,
306 blk_t blk, int count);
307 extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
308 extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
309 extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
312 extern const char *ehandler_operation(const char *op);
313 extern void ehandler_init(io_channel channel);
316 extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
317 extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
318 extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
321 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
322 extern int e2fsck_pass1_check_device_inode(struct ext2_inode *inode);
323 extern int e2fsck_pass1_check_symlink(ext2_filsys fs, struct ext2_inode *inode);
326 extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir, ext2_ino_t ino);
329 extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
332 extern region_t region_create(region_addr_t min, region_addr_t max);
333 extern void region_free(region_t region);
334 extern int region_allocate(region_t region, region_addr_t start, int n);
337 void check_super_block(e2fsck_t ctx);
338 errcode_t e2fsck_get_device_size(e2fsck_t ctx);
341 void swap_filesys(e2fsck_t ctx);
344 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
345 const char *description);
346 extern int ask(e2fsck_t ctx, const char * string, int def);
347 extern int ask_yn(const char * string, int def);
348 extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
349 extern void e2fsck_read_bitmaps(e2fsck_t ctx);
350 extern void e2fsck_write_bitmaps(e2fsck_t ctx);
351 extern void preenhalt(e2fsck_t ctx);
352 #ifdef RESOURCE_TRACK
353 extern void print_resource_track(const char *desc,
354 struct resource_track *track);
355 extern void init_resource_track(struct resource_track *track);
357 extern int inode_has_valid_blocks(struct ext2_inode *inode);
358 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
359 struct ext2_inode * inode, const char * proc);
360 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
361 struct ext2_inode * inode, const char * proc);
363 extern void mtrace_print(char *mesg);
365 extern blk_t get_backup_sb(ext2_filsys fs);
366 extern int ext2_file_type(unsigned int mode);
369 extern void e2fsck_clear_progbar(e2fsck_t ctx);