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 <linux/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"
52 /* For Linux/i386, define BLKFLSBUF */
53 #if (!defined(BLKFLSBUF) && defined(__i386__))
54 #define BLKFLSBUF 0x1261 /* flush buffer cache */
57 /* Everything is STDC, these days */
61 * Exit codes used by fsck-type programs
63 #define FSCK_OK 0 /* No errors */
64 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
65 #define FSCK_REBOOT 2 /* System should be rebooted */
66 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
67 #define FSCK_ERROR 8 /* Operational error */
68 #define FSCK_USAGE 16 /* Usage or syntax error */
69 #define FSCK_LIBRARY 128 /* Shared library error */
72 * The last ext2fs revision level that this version of e2fsck is able to
75 #define E2FSCK_CURRENT_REV 1
78 * The directory information structure; stores directory information
79 * collected in earlier passes, to avoid disk i/o in fetching the
80 * directory information.
83 ino_t ino; /* Inode number */
84 ino_t dotdot; /* Parent according to '..' */
85 ino_t parent; /* Parent according to treewalk */
90 * This structure is used for keeping track of how much resources have
91 * been used for a particular pass of e2fsck.
93 struct resource_track {
94 struct timeval time_start;
95 struct timeval user_start;
96 struct timeval system_start;
104 #define E2F_OPT_READONLY 0x0001
105 #define E2F_OPT_PREEN 0x0002
106 #define E2F_OPT_YES 0x0004
107 #define E2F_OPT_NO 0x0008
108 #define E2F_OPT_TIME 0x0010
109 #define E2F_OPT_TIME2 0x0020
110 #define E2F_OPT_CHECKBLOCKS 0x0040
111 #define E2F_OPT_DEBUG 0x0080
116 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
117 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
118 #define E2F_FLAG_SIGNAL_MASK 0x0003
119 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
121 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
123 #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
124 #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
127 * Defines for indicating the e2fsck pass number
134 #define E2F_PASS_1B 6
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 */
173 ext2_icount_t inode_count;
174 ext2_icount_t inode_link_info;
177 * Array of flags indicating whether an inode bitmap, block
178 * bitmap, or inode table is invalid
180 int *invalid_inode_bitmap_flag;
181 int *invalid_block_bitmap_flag;
182 int *invalid_inode_table_flag;
183 int invalid_bitmaps; /* There are invalid bitmaps/itable */
191 * For pass1_check_directory and pass1_get_blocks
194 struct ext2_inode *stashed_inode;
197 * Directory information
201 struct dir_info *dir_info;
206 int process_inode_size;
207 int inode_buffer_blocks;
209 #ifdef RESOURCE_TRACK
211 * For timing purposes
213 struct resource_track global_rtrack;
217 * How we display the progress update (for unix)
221 int progress_last_percent;
222 unsigned int progress_last_time;
225 int fs_directory_count;
226 int fs_regular_count;
227 int fs_blockdev_count;
228 int fs_chardev_count;
230 int fs_symlinks_count;
231 int fs_fast_symlinks_count;
234 int fs_badblocks_count;
235 int fs_sockets_count;
243 * For the use of callers of the e2fsck functions; not used by
244 * e2fsck functions themselves.
251 * Procedure declarations
254 extern void e2fsck_pass1(e2fsck_t ctx);
255 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
256 extern void e2fsck_pass2(e2fsck_t ctx);
257 extern void e2fsck_pass3(e2fsck_t ctx);
258 extern void e2fsck_pass4(e2fsck_t ctx);
259 extern void e2fsck_pass5(e2fsck_t ctx);
262 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
263 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
264 extern void e2fsck_free_context(e2fsck_t ctx);
265 extern int e2fsck_run(e2fsck_t ctx);
269 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
270 int replace_bad_blocks);
271 extern void test_disk(e2fsck_t ctx);
274 extern void e2fsck_add_dir_info(e2fsck_t ctx, ino_t ino, ino_t parent);
275 extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ino_t ino);
276 extern void e2fsck_free_dir_info(e2fsck_t ctx);
277 extern int e2fsck_get_num_dirs(e2fsck_t ctx);
278 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
279 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
282 extern const char *ehandler_operation(const char *op);
283 extern void ehandler_init(io_channel channel);
286 extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
287 extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
290 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
291 extern int e2fsck_pass1_check_device_inode(struct ext2_inode *inode);
294 extern int e2fsck_process_bad_inode(e2fsck_t ctx, ino_t dir, ino_t ino);
297 extern int e2fsck_reconnect_file(e2fsck_t ctx, ino_t inode);
300 void check_super_block(e2fsck_t ctx);
301 errcode_t e2fsck_get_device_size(e2fsck_t ctx);
304 void swap_filesys(e2fsck_t ctx);
307 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
308 const char *description);
309 extern int ask(e2fsck_t ctx, const char * string, int def);
310 extern int ask_yn(const char * string, int def);
311 extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
312 extern void e2fsck_read_bitmaps(e2fsck_t ctx);
313 extern void e2fsck_write_bitmaps(e2fsck_t ctx);
314 extern void preenhalt(e2fsck_t ctx);
315 #ifdef RESOURCE_TRACK
316 extern void print_resource_track(const char *desc,
317 struct resource_track *track);
318 extern void init_resource_track(struct resource_track *track);
320 extern int inode_has_valid_blocks(struct ext2_inode *inode);
321 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
322 struct ext2_inode * inode, const char * proc);
323 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
324 struct ext2_inode * inode, const char * proc);
326 extern void mtrace_print(char *mesg);
328 extern blk_t get_backup_sb(ext2_filsys fs);
329 extern int ext2_file_type(unsigned int mode);
332 extern void e2fsck_clear_progbar(e2fsck_t ctx);