4 * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
5 * redistributed under the terms of the GNU Public License.
13 #ifdef HAVE_SYS_TYPES_H
14 #include <sys/types.h>
16 #ifdef HAVE_SYS_TIME_H
23 #ifdef HAVE_LINUX_FS_H
27 #if EXT2_FLAT_INCLUDES
31 #include <linux/ext2_fs.h>
32 #include "ext2fs/ext2fs.h"
36 /* Everything is STDC, these days */
40 * Exit codes used by fsck-type programs
42 #define FSCK_OK 0 /* No errors */
43 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
44 #define FSCK_REBOOT 2 /* System should be rebooted */
45 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
46 #define FSCK_ERROR 8 /* Operational error */
47 #define FSCK_USAGE 16 /* Usage or syntax error */
48 #define FSCK_LIBRARY 128 /* Shared library error */
51 * The last ext2fs revision level that this version of e2fsck is able to
54 #define E2FSCK_CURRENT_REV 1
57 * The directory information structure; stores directory information
58 * collected in earlier passes, to avoid disk i/o in fetching the
59 * directory information.
62 ino_t ino; /* Inode number */
63 ino_t dotdot; /* Parent according to '..' */
64 ino_t parent; /* Parent according to treewalk */
69 * This structure is used for keeping track of how much resources have
70 * been used for a particular pass of e2fsck.
72 struct resource_track {
73 struct timeval time_start;
74 struct timeval user_start;
75 struct timeval system_start;
83 #define E2F_OPT_READONLY 0x0001
84 #define E2F_OPT_PREEN 0x0002
85 #define E2F_OPT_YES 0x0004
86 #define E2F_OPT_NO 0x0008
87 #define E2F_OPT_TIME 0x0010
88 #define E2F_OPT_TIME2 0x0020
89 #define E2F_OPT_CHECKBLOCKS 0x0040
90 #define E2F_OPT_DEBUG 0x0080
95 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
96 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
97 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
98 #define E2F_FLAG_SIGNAL_MASK 0x000F
100 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
103 * Defines for indicating the e2fsck pass number
110 #define E2F_PASS_1B 6
113 * This is the global e2fsck structure.
115 typedef struct e2fsck_struct *e2fsck_t;
117 struct e2fsck_struct {
119 const char *program_name;
120 const char *filesystem_name;
121 const char *device_name;
122 int flags; /* E2fsck internal flags */
124 blk_t use_superblock; /* sb requested by user */
125 blk_t superblock; /* sb used to open fs */
126 blk_t num_blocks; /* Total number of blocks */
131 unsigned long abort_code;
133 void (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
136 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
137 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
138 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
139 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
141 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
142 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
143 ext2fs_block_bitmap block_illegal_map; /* Meta-data blocks */
148 ext2_icount_t inode_count;
149 ext2_icount_t inode_link_info;
152 * Array of flags indicating whether an inode bitmap, block
153 * bitmap, or inode table is invalid
155 int *invalid_inode_bitmap_flag;
156 int *invalid_block_bitmap_flag;
157 int *invalid_inode_table_flag;
158 int invalid_bitmaps; /* There are invalid bitmaps/itable */
166 * For pass1_check_directory and pass1_get_blocks
169 struct ext2_inode *stashed_inode;
172 * Directory information
176 struct dir_info *dir_info;
181 int process_inode_size;
182 int inode_buffer_blocks;
184 #ifdef RESOURCE_TRACK
186 * For timing purposes
188 struct resource_track global_rtrack;
192 int fs_directory_count;
193 int fs_regular_count;
194 int fs_blockdev_count;
195 int fs_chardev_count;
197 int fs_symlinks_count;
198 int fs_fast_symlinks_count;
201 int fs_badblocks_count;
202 int fs_sockets_count;
211 * Procedure declarations
214 extern void e2fsck_pass1(e2fsck_t ctx);
215 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
216 extern void e2fsck_pass2(e2fsck_t ctx);
217 extern void e2fsck_pass3(e2fsck_t ctx);
218 extern void e2fsck_pass4(e2fsck_t ctx);
219 extern void e2fsck_pass5(e2fsck_t ctx);
222 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
223 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
224 extern void e2fsck_free_context(e2fsck_t ctx);
225 extern int e2fsck_run(e2fsck_t ctx);
229 extern errcode_t pass1_check_directory(ext2_filsys fs, ino_t ino);
230 extern errcode_t pass1_get_blocks(ext2_filsys fs, ino_t ino, blk_t *blocks);
231 extern errcode_t pass1_read_inode(ext2_filsys fs, ino_t ino,
232 struct ext2_inode *inode);
233 extern errcode_t pass1_write_inode(ext2_filsys fs, ino_t ino,
234 struct ext2_inode *inode);
235 extern int e2fsck_pass1_check_device_inode(struct ext2_inode *inode);
238 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
239 int replace_bad_blocks);
240 extern void test_disk(e2fsck_t ctx);
243 extern void e2fsck_add_dir_info(e2fsck_t ctx, ino_t ino, ino_t parent);
244 extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ino_t ino);
245 extern void e2fsck_free_dir_info(e2fsck_t ctx);
246 extern int e2fsck_get_num_dirs(e2fsck_t ctx);
247 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
248 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
251 extern const char *ehandler_operation(const char *op);
252 extern void ehandler_init(io_channel channel);
255 void check_super_block(e2fsck_t ctx);
258 void swap_filesys(e2fsck_t ctx);
261 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
262 const char *description);
263 extern int ask(e2fsck_t ctx, const char * string, int def);
264 extern int ask_yn(const char * string, int def);
265 extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
266 extern void e2fsck_read_bitmaps(e2fsck_t ctx);
267 extern void e2fsck_write_bitmaps(e2fsck_t ctx);
268 extern void preenhalt(e2fsck_t ctx);
269 #ifdef RESOURCE_TRACK
270 extern void print_resource_track(const char *desc,
271 struct resource_track *track);
272 extern void init_resource_track(struct resource_track *track);
274 extern int inode_has_valid_blocks(struct ext2_inode *inode);
275 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
276 struct ext2_inode * inode, const char * proc);
277 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
278 struct ext2_inode * inode, const char * proc);
280 extern void mtrace_print(char *mesg);
282 extern blk_t get_backup_sb(ext2_filsys fs);
287 extern int e2fsck_reconnect_file(e2fsck_t ctx, ino_t inode);