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Commit | Line | Data |
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3839e657 TT |
1 | /* |
2 | * e2fsck.h | |
3 | * | |
4 | * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be | |
5 | * redistributed under the terms of the GNU Public License. | |
6 | * | |
7 | */ | |
8 | ||
9 | #include <stdio.h> | |
10 | #include <string.h> | |
4c77fe50 | 11 | #ifdef HAVE_UNISTD_H |
3839e657 | 12 | #include <unistd.h> |
4c77fe50 | 13 | #endif |
3839e657 | 14 | #include <stdlib.h> |
54be2ccc | 15 | #include <time.h> |
b2da22d1 | 16 | #ifdef HAVE_SYS_TYPES_H |
3839e657 | 17 | #include <sys/types.h> |
b2da22d1 TT |
18 | #endif |
19 | #ifdef HAVE_SYS_TIME_H | |
3839e657 | 20 | #include <sys/time.h> |
b2da22d1 | 21 | #endif |
08b21301 TT |
22 | #ifdef HAVE_SETJMP_H |
23 | #include <setjmp.h> | |
24 | #endif | |
3839e657 | 25 | |
50e1e10f | 26 | #ifdef HAVE_LINUX_FS_H |
3839e657 | 27 | #include <linux/fs.h> |
50e1e10f | 28 | #endif |
3839e657 | 29 | |
54dc7ca2 TT |
30 | #if EXT2_FLAT_INCLUDES |
31 | #include "ext2_fs.h" | |
32 | #include "ext2fs.h" | |
33 | #else | |
34 | #include <linux/ext2_fs.h> | |
3839e657 | 35 | #include "ext2fs/ext2fs.h" |
54dc7ca2 TT |
36 | #endif |
37 | ||
3839e657 | 38 | |
08b21301 | 39 | /* Everything is STDC, these days */ |
3839e657 | 40 | #define NOARGS void |
3839e657 TT |
41 | |
42 | /* | |
43 | * Exit codes used by fsck-type programs | |
44 | */ | |
45 | #define FSCK_OK 0 /* No errors */ | |
46 | #define FSCK_NONDESTRUCT 1 /* File system errors corrected */ | |
47 | #define FSCK_REBOOT 2 /* System should be rebooted */ | |
48 | #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */ | |
49 | #define FSCK_ERROR 8 /* Operational error */ | |
50 | #define FSCK_USAGE 16 /* Usage or syntax error */ | |
51 | #define FSCK_LIBRARY 128 /* Shared library error */ | |
52 | ||
f3db3566 TT |
53 | /* |
54 | * The last ext2fs revision level that this version of e2fsck is able to | |
55 | * support | |
56 | */ | |
1e3472c5 | 57 | #define E2FSCK_CURRENT_REV 1 |
f3db3566 | 58 | |
3839e657 TT |
59 | /* |
60 | * The directory information structure; stores directory information | |
61 | * collected in earlier passes, to avoid disk i/o in fetching the | |
21c84b71 | 62 | * directory information. |
3839e657 TT |
63 | */ |
64 | struct dir_info { | |
65 | ino_t ino; /* Inode number */ | |
66 | ino_t dotdot; /* Parent according to '..' */ | |
67 | ino_t parent; /* Parent according to treewalk */ | |
68 | }; | |
69 | ||
8bf191e8 | 70 | #ifdef RESOURCE_TRACK |
3839e657 TT |
71 | /* |
72 | * This structure is used for keeping track of how much resources have | |
73 | * been used for a particular pass of e2fsck. | |
74 | */ | |
75 | struct resource_track { | |
76 | struct timeval time_start; | |
77 | struct timeval user_start; | |
78 | struct timeval system_start; | |
79 | void *brk_start; | |
80 | }; | |
8bf191e8 | 81 | #endif |
3839e657 TT |
82 | |
83 | /* | |
1b6bf175 | 84 | * E2fsck options |
3839e657 | 85 | */ |
1b6bf175 TT |
86 | #define E2F_OPT_READONLY 0x0001 |
87 | #define E2F_OPT_PREEN 0x0002 | |
88 | #define E2F_OPT_YES 0x0004 | |
89 | #define E2F_OPT_NO 0x0008 | |
90 | #define E2F_OPT_TIME 0x0010 | |
91 | #define E2F_OPT_TIME2 0x0020 | |
92 | #define E2F_OPT_CHECKBLOCKS 0x0040 | |
93 | #define E2F_OPT_DEBUG 0x0080 | |
3839e657 | 94 | |
08b21301 TT |
95 | /* |
96 | * E2fsck flags | |
97 | */ | |
98 | #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */ | |
99 | #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */ | |
2df1f6aa | 100 | #define E2F_FLAG_SIGNAL_MASK 0x0003 |
08b21301 | 101 | #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */ |
08b21301 TT |
102 | |
103 | #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */ | |
104 | ||
105 | /* | |
106 | * Defines for indicating the e2fsck pass number | |
107 | */ | |
108 | #define E2F_PASS_1 1 | |
109 | #define E2F_PASS_2 2 | |
110 | #define E2F_PASS_3 3 | |
111 | #define E2F_PASS_4 4 | |
112 | #define E2F_PASS_5 5 | |
113 | #define E2F_PASS_1B 6 | |
114 | ||
1b6bf175 TT |
115 | /* |
116 | * This is the global e2fsck structure. | |
117 | */ | |
08b21301 TT |
118 | typedef struct e2fsck_struct *e2fsck_t; |
119 | ||
1b6bf175 TT |
120 | struct e2fsck_struct { |
121 | ext2_filsys fs; | |
122 | const char *program_name; | |
123 | const char *filesystem_name; | |
124 | const char *device_name; | |
08b21301 | 125 | int flags; /* E2fsck internal flags */ |
1b6bf175 TT |
126 | int options; |
127 | blk_t use_superblock; /* sb requested by user */ | |
128 | blk_t superblock; /* sb used to open fs */ | |
f8188fff | 129 | blk_t num_blocks; /* Total number of blocks */ |
1b6bf175 | 130 | |
08b21301 TT |
131 | #ifdef HAVE_SETJMP_H |
132 | jmp_buf abort_loc; | |
133 | #endif | |
f8188fff | 134 | unsigned long abort_code; |
08b21301 | 135 | |
a02ce9df TT |
136 | int (*progress)(e2fsck_t ctx, int pass, unsigned long cur, |
137 | unsigned long max); | |
08b21301 | 138 | |
1b6bf175 TT |
139 | ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */ |
140 | ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */ | |
141 | ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */ | |
142 | ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */ | |
143 | ||
144 | ext2fs_block_bitmap block_found_map; /* Blocks which are in use */ | |
145 | ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */ | |
146 | ext2fs_block_bitmap block_illegal_map; /* Meta-data blocks */ | |
147 | ||
148 | /* | |
149 | * Inode count arrays | |
150 | */ | |
151 | ext2_icount_t inode_count; | |
152 | ext2_icount_t inode_link_info; | |
153 | ||
154 | /* | |
155 | * Array of flags indicating whether an inode bitmap, block | |
156 | * bitmap, or inode table is invalid | |
157 | */ | |
158 | int *invalid_inode_bitmap_flag; | |
159 | int *invalid_block_bitmap_flag; | |
160 | int *invalid_inode_table_flag; | |
161 | int invalid_bitmaps; /* There are invalid bitmaps/itable */ | |
162 | ||
08b21301 TT |
163 | /* |
164 | * Block buffer | |
165 | */ | |
166 | char *block_buf; | |
167 | ||
1b6bf175 TT |
168 | /* |
169 | * For pass1_check_directory and pass1_get_blocks | |
170 | */ | |
171 | ino_t stashed_ino; | |
172 | struct ext2_inode *stashed_inode; | |
173 | ||
08b21301 TT |
174 | /* |
175 | * Directory information | |
176 | */ | |
177 | int dir_info_count; | |
178 | int dir_info_size; | |
179 | struct dir_info *dir_info; | |
180 | ||
1b6bf175 TT |
181 | /* |
182 | * Tuning parameters | |
183 | */ | |
184 | int process_inode_size; | |
185 | int inode_buffer_blocks; | |
186 | ||
8bf191e8 | 187 | #ifdef RESOURCE_TRACK |
1b6bf175 TT |
188 | /* |
189 | * For timing purposes | |
190 | */ | |
191 | struct resource_track global_rtrack; | |
8bf191e8 | 192 | #endif |
1b6bf175 | 193 | |
efac9a1b TT |
194 | /* |
195 | * How we display the progress update (for unix) | |
196 | */ | |
197 | int progress_fd; | |
198 | int progress_pos; | |
199 | ||
1b6bf175 TT |
200 | /* File counts */ |
201 | int fs_directory_count; | |
202 | int fs_regular_count; | |
203 | int fs_blockdev_count; | |
204 | int fs_chardev_count; | |
205 | int fs_links_count; | |
206 | int fs_symlinks_count; | |
207 | int fs_fast_symlinks_count; | |
208 | int fs_fifo_count; | |
209 | int fs_total_count; | |
210 | int fs_badblocks_count; | |
211 | int fs_sockets_count; | |
212 | int fs_ind_count; | |
213 | int fs_dind_count; | |
214 | int fs_tind_count; | |
215 | int fs_fragmented; | |
246501c6 | 216 | int large_files; |
4313932c TT |
217 | |
218 | /* | |
219 | * For the use of callers of the e2fsck functions; not used by | |
220 | * e2fsck functions themselves. | |
221 | */ | |
222 | void *priv_data; | |
1b6bf175 | 223 | }; |
f3db3566 | 224 | |
1e3472c5 | 225 | |
3839e657 TT |
226 | /* |
227 | * Procedure declarations | |
228 | */ | |
229 | ||
08b21301 TT |
230 | extern void e2fsck_pass1(e2fsck_t ctx); |
231 | extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf); | |
232 | extern void e2fsck_pass2(e2fsck_t ctx); | |
233 | extern void e2fsck_pass3(e2fsck_t ctx); | |
234 | extern void e2fsck_pass4(e2fsck_t ctx); | |
235 | extern void e2fsck_pass5(e2fsck_t ctx); | |
1b6bf175 TT |
236 | |
237 | /* e2fsck.c */ | |
08b21301 TT |
238 | extern errcode_t e2fsck_allocate_context(e2fsck_t *ret); |
239 | extern errcode_t e2fsck_reset_context(e2fsck_t ctx); | |
240 | extern void e2fsck_free_context(e2fsck_t ctx); | |
241 | extern int e2fsck_run(e2fsck_t ctx); | |
242 | ||
3839e657 | 243 | |
1e3472c5 TT |
244 | /* pass1.c */ |
245 | extern errcode_t pass1_check_directory(ext2_filsys fs, ino_t ino); | |
246 | extern errcode_t pass1_get_blocks(ext2_filsys fs, ino_t ino, blk_t *blocks); | |
247 | extern errcode_t pass1_read_inode(ext2_filsys fs, ino_t ino, | |
248 | struct ext2_inode *inode); | |
249 | extern errcode_t pass1_write_inode(ext2_filsys fs, ino_t ino, | |
250 | struct ext2_inode *inode); | |
7cf73dcd | 251 | extern int e2fsck_pass1_check_device_inode(struct ext2_inode *inode); |
1e3472c5 | 252 | |
3839e657 | 253 | /* badblock.c */ |
1b6bf175 | 254 | extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file, |
3839e657 | 255 | int replace_bad_blocks); |
1b6bf175 | 256 | extern void test_disk(e2fsck_t ctx); |
3839e657 TT |
257 | |
258 | /* dirinfo.c */ | |
08b21301 TT |
259 | extern void e2fsck_add_dir_info(e2fsck_t ctx, ino_t ino, ino_t parent); |
260 | extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ino_t ino); | |
261 | extern void e2fsck_free_dir_info(e2fsck_t ctx); | |
262 | extern int e2fsck_get_num_dirs(e2fsck_t ctx); | |
f8188fff | 263 | extern int e2fsck_get_num_dirinfo(e2fsck_t ctx); |
08b21301 | 264 | extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control); |
3839e657 TT |
265 | |
266 | /* ehandler.c */ | |
267 | extern const char *ehandler_operation(const char *op); | |
268 | extern void ehandler_init(io_channel channel); | |
269 | ||
1b6bf175 TT |
270 | /* super.c */ |
271 | void check_super_block(e2fsck_t ctx); | |
17dba281 | 272 | errcode_t e2fsck_get_device_size(e2fsck_t ctx); |
1b6bf175 | 273 | |
1e3472c5 | 274 | /* swapfs.c */ |
1b6bf175 | 275 | void swap_filesys(e2fsck_t ctx); |
1e3472c5 | 276 | |
3839e657 | 277 | /* util.c */ |
f8188fff TT |
278 | extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size, |
279 | const char *description); | |
1b6bf175 | 280 | extern int ask(e2fsck_t ctx, const char * string, int def); |
3839e657 | 281 | extern int ask_yn(const char * string, int def); |
f8188fff TT |
282 | extern void fatal_error(e2fsck_t ctx, const char * fmt_string); |
283 | extern void e2fsck_read_bitmaps(e2fsck_t ctx); | |
284 | extern void e2fsck_write_bitmaps(e2fsck_t ctx); | |
1b6bf175 | 285 | extern void preenhalt(e2fsck_t ctx); |
8bf191e8 | 286 | #ifdef RESOURCE_TRACK |
1b6bf175 TT |
287 | extern void print_resource_track(const char *desc, |
288 | struct resource_track *track); | |
3839e657 | 289 | extern void init_resource_track(struct resource_track *track); |
8bf191e8 | 290 | #endif |
3839e657 | 291 | extern int inode_has_valid_blocks(struct ext2_inode *inode); |
08b21301 | 292 | extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino, |
f3db3566 | 293 | struct ext2_inode * inode, const char * proc); |
08b21301 | 294 | extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino, |
f3db3566 | 295 | struct ext2_inode * inode, const char * proc); |
3839e657 TT |
296 | #ifdef MTRACE |
297 | extern void mtrace_print(char *mesg); | |
298 | #endif | |
1b6bf175 | 299 | extern blk_t get_backup_sb(ext2_filsys fs); |
3839e657 | 300 | |
3839e657 TT |
301 | /* |
302 | * pass3.c | |
303 | */ | |
08b21301 | 304 | extern int e2fsck_reconnect_file(e2fsck_t ctx, ino_t inode); |