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
26 #include <linux/ext2_fs.h>
28 #include "ext2fs/ext2fs.h"
30 /* Everything is STDC, these days */
34 * Exit codes used by fsck-type programs
36 #define FSCK_OK 0 /* No errors */
37 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
38 #define FSCK_REBOOT 2 /* System should be rebooted */
39 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
40 #define FSCK_ERROR 8 /* Operational error */
41 #define FSCK_USAGE 16 /* Usage or syntax error */
42 #define FSCK_LIBRARY 128 /* Shared library error */
45 * The last ext2fs revision level that this version of e2fsck is able to
48 #define E2FSCK_CURRENT_REV 1
51 * The directory information structure; stores directory information
52 * collected in earlier passes, to avoid disk i/o in fetching the
53 * directory information.
56 ino_t ino; /* Inode number */
57 ino_t dotdot; /* Parent according to '..' */
58 ino_t parent; /* Parent according to treewalk */
63 * This structure is used for keeping track of how much resources have
64 * been used for a particular pass of e2fsck.
66 struct resource_track {
67 struct timeval time_start;
68 struct timeval user_start;
69 struct timeval system_start;
77 #define E2F_OPT_READONLY 0x0001
78 #define E2F_OPT_PREEN 0x0002
79 #define E2F_OPT_YES 0x0004
80 #define E2F_OPT_NO 0x0008
81 #define E2F_OPT_TIME 0x0010
82 #define E2F_OPT_TIME2 0x0020
83 #define E2F_OPT_CHECKBLOCKS 0x0040
84 #define E2F_OPT_DEBUG 0x0080
89 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
90 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
91 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
92 #define E2F_FLAG_SIGNAL_MASK 0x000F
94 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
97 * Defines for indicating the e2fsck pass number
104 #define E2F_PASS_1B 6
107 * This is the global e2fsck structure.
109 typedef struct e2fsck_struct *e2fsck_t;
111 struct e2fsck_struct {
113 const char *program_name;
114 const char *filesystem_name;
115 const char *device_name;
116 int flags; /* E2fsck internal flags */
118 blk_t use_superblock; /* sb requested by user */
119 blk_t superblock; /* sb used to open fs */
125 void (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
128 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
129 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
130 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
131 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
133 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
134 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
135 ext2fs_block_bitmap block_illegal_map; /* Meta-data blocks */
140 ext2_icount_t inode_count;
141 ext2_icount_t inode_link_info;
144 * Array of flags indicating whether an inode bitmap, block
145 * bitmap, or inode table is invalid
147 int *invalid_inode_bitmap_flag;
148 int *invalid_block_bitmap_flag;
149 int *invalid_inode_table_flag;
150 int invalid_bitmaps; /* There are invalid bitmaps/itable */
158 * For pass1_check_directory and pass1_get_blocks
161 struct ext2_inode *stashed_inode;
164 * Directory information
168 struct dir_info *dir_info;
173 int process_inode_size;
174 int inode_buffer_blocks;
176 #ifdef RESOURCE_TRACK
178 * For timing purposes
180 struct resource_track global_rtrack;
184 int fs_directory_count;
185 int fs_regular_count;
186 int fs_blockdev_count;
187 int fs_chardev_count;
189 int fs_symlinks_count;
190 int fs_fast_symlinks_count;
193 int fs_badblocks_count;
194 int fs_sockets_count;
203 * Procedure declarations
206 extern void e2fsck_pass1(e2fsck_t ctx);
207 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
208 extern void e2fsck_pass2(e2fsck_t ctx);
209 extern void e2fsck_pass3(e2fsck_t ctx);
210 extern void e2fsck_pass4(e2fsck_t ctx);
211 extern void e2fsck_pass5(e2fsck_t ctx);
214 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
215 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
216 extern void e2fsck_free_context(e2fsck_t ctx);
217 extern int e2fsck_run(e2fsck_t ctx);
221 extern errcode_t pass1_check_directory(ext2_filsys fs, ino_t ino);
222 extern errcode_t pass1_get_blocks(ext2_filsys fs, ino_t ino, blk_t *blocks);
223 extern errcode_t pass1_read_inode(ext2_filsys fs, ino_t ino,
224 struct ext2_inode *inode);
225 extern errcode_t pass1_write_inode(ext2_filsys fs, ino_t ino,
226 struct ext2_inode *inode);
227 extern int e2fsck_pass1_check_device_inode(struct ext2_inode *inode);
230 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
231 int replace_bad_blocks);
232 extern void test_disk(e2fsck_t ctx);
235 extern void e2fsck_add_dir_info(e2fsck_t ctx, ino_t ino, ino_t parent);
236 extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ino_t ino);
237 extern void e2fsck_free_dir_info(e2fsck_t ctx);
238 extern int e2fsck_get_num_dirs(e2fsck_t ctx);
239 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
242 extern const char *ehandler_operation(const char *op);
243 extern void ehandler_init(io_channel channel);
246 void check_super_block(e2fsck_t ctx);
249 void swap_filesys(e2fsck_t ctx);
252 extern void *allocate_memory(int size, const char *description);
253 extern int ask(e2fsck_t ctx, const char * string, int def);
254 extern int ask_yn(const char * string, int def);
255 extern void fatal_error (const char * fmt_string);
256 extern void read_bitmaps(e2fsck_t ctx);
257 extern void write_bitmaps(e2fsck_t ctx);
258 extern void preenhalt(e2fsck_t ctx);
259 #ifdef RESOURCE_TRACK
260 extern void print_resource_track(const char *desc,
261 struct resource_track *track);
262 extern void init_resource_track(struct resource_track *track);
264 extern int inode_has_valid_blocks(struct ext2_inode *inode);
265 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
266 struct ext2_inode * inode, const char * proc);
267 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
268 struct ext2_inode * inode, const char * proc);
270 extern void mtrace_print(char *mesg);
272 extern blk_t get_backup_sb(ext2_filsys fs);
277 extern int e2fsck_reconnect_file(e2fsck_t ctx, ino_t inode);