1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause and BSD-2-Clause
3 *
4 * Copyright (c) 2002 Networks Associates Technology, Inc.
5 * All rights reserved.
6 *
7 * This software was developed for the FreeBSD Project by Marshall
8 * Kirk McKusick and Network Associates Laboratories, the Security
9 * Research Division of Network Associates, Inc. under DARPA/SPAWAR
10 * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
11 * research program.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * Copyright (c) 1980, 1986, 1993
35 * The Regents of the University of California. All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * 3. Neither the name of the University nor the names of its contributors
46 * may be used to endorse or promote products derived from this software
47 * without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 *
61 * @(#)fsck.h 8.4 (Berkeley) 5/9/95
62 */
63
64 #ifndef _FSCK_H_
65 #define _FSCK_H_
66
67 #include <unistd.h>
68 #include <stdlib.h>
69 #include <stdio.h>
70
71 #include <sys/queue.h>
72
73 #define MAXDUP 10 /* limit on dup blks (per inode) */
74 #define MAXBAD 10 /* limit on bad blks (per inode) */
75 #define MINBUFS 100 /* minimum number of buffers required */
76 #define INOBUFSIZE 64*1024 /* size of buffer to read inodes in pass1 */
77 #define ZEROBUFSIZE (dev_bsize * 128) /* size of zero buffer used by -Z */
78
79 #define DIP(dp, field) \
80 ((sblock.fs_magic == FS_UFS1_MAGIC) ? \
81 (dp)->dp1.field : (dp)->dp2.field)
82
83 #define DIP_SET(dp, field, val) do { \
84 if (sblock.fs_magic == FS_UFS1_MAGIC) \
85 (dp)->dp1.field = (val); \
86 else \
87 (dp)->dp2.field = (val); \
88 } while (0)
89
90 /*
91 * Each inode on the file system is described by the following structure.
92 * The linkcnt is initially set to the value in the inode. Each time it
93 * is found during the descent in passes 2, 3, and 4 the count is
94 * decremented. Any inodes whose count is non-zero after pass 4 needs to
95 * have its link count adjusted by the value remaining in ino_linkcnt.
96 */
97 struct inostat {
98 u_char ino_state; /* state of inode, see below */
99 u_char ino_type:4; /* type of inode */
100 u_char ino_idtype:4; /* idesc id_type, SNAP or ADDR */
101 u_short ino_linkcnt; /* number of links not found */
102 };
103 /*
104 * Inode states.
105 */
106 #define USTATE 0x1 /* inode not allocated */
107 #define FSTATE 0x2 /* inode is file */
108 #define FZLINK 0x3 /* inode is file with a link count of zero */
109 #define DSTATE 0x4 /* inode is directory */
110 #define DZLINK 0x5 /* inode is directory with a zero link count */
111 #define DFOUND 0x6 /* directory found during descent */
112 /* 0x7 UNUSED - see S_IS_DVALID() definition */
113 #define DCLEAR 0x8 /* directory is to be cleared */
114 #define FCLEAR 0x9 /* file is to be cleared */
115 /* DUNFOUND === (state == DSTATE || state == DZLINK) */
116 #define S_IS_DUNFOUND(state) (((state) & ~0x1) == DSTATE)
117 /* DVALID === (state == DSTATE || state == DZLINK || state == DFOUND) */
118 #define S_IS_DVALID(state) (((state) & ~0x3) == DSTATE)
119 #define INO_IS_DUNFOUND(ino) S_IS_DUNFOUND(inoinfo(ino)->ino_state)
120 #define INO_IS_DVALID(ino) S_IS_DVALID(inoinfo(ino)->ino_state)
121 /*
122 * Inode state information is contained on per cylinder group lists
123 * which are described by the following structure.
124 */
125 extern struct inostatlist {
126 long il_numalloced; /* number of inodes allocated in this cg */
127 struct inostat *il_stat;/* inostat info for this cylinder group */
128 } *inostathead;
129
130 /*
131 * Structure to reference a dinode.
132 */
133 struct inode {
134 struct bufarea *i_bp; /* buffer containing the dinode */
135 union dinode *i_dp; /* pointer to dinode in buffer */
136 ino_t i_number; /* inode number */
137 };
138
139 /*
140 * Size of hash tables
141 */
142 #define HASHSIZE 2048
143 #define HASH(x) ((x * 2654435761) & (HASHSIZE - 1))
144
145 /*
146 * buffer cache structure.
147 */
148 struct bufarea {
149 TAILQ_ENTRY(bufarea) b_list; /* LRU buffer queue */
150 LIST_ENTRY(bufarea) b_hash; /* hash list */
151 ufs2_daddr_t b_bno; /* disk block number */
152 int b_size; /* size of I/O */
153 int b_errs; /* I/O error */
154 int b_flags; /* B_ flags below */
155 int b_type; /* BT_ type below */
156 int b_refcnt; /* ref count of users */
157 int b_index; /* for BT_LEVEL, ptr index */
158 /* for BT_INODES, first inum */
159 union {
160 char *b_buf; /* buffer space */
161 ufs1_daddr_t *b_indir1; /* UFS1 indirect block */
162 ufs2_daddr_t *b_indir2; /* UFS2 indirect block */
163 struct fs *b_fs; /* super block */
164 struct cg *b_cg; /* cylinder group */
165 struct ufs1_dinode *b_dinode1; /* UFS1 inode block */
166 struct ufs2_dinode *b_dinode2; /* UFS2 inode block */
167 } b_un;
168 };
169
170 #define IBLK(bp, i) \
171 ((sblock.fs_magic == FS_UFS1_MAGIC) ? \
172 (bp)->b_un.b_indir1[i] : (bp)->b_un.b_indir2[i])
173
174 #define IBLK_SET(bp, i, val) do { \
175 if (sblock.fs_magic == FS_UFS1_MAGIC) \
176 (bp)->b_un.b_indir1[i] = (val); \
177 else \
178 (bp)->b_un.b_indir2[i] = (val); \
179 } while (0)
180
181 /*
182 * Buffer flags
183 */
184 #define B_DIRTY 0x00000001 /* Buffer is dirty */
185 /*
186 * Type of data in buffer
187 */
188 #define BT_UNKNOWN 0 /* Buffer type is unknown */
189 #define BT_SUPERBLK 1 /* Buffer holds a superblock */
190 #define BT_CYLGRP 2 /* Buffer holds a cylinder group map */
191 #define BT_LEVEL1 3 /* Buffer holds single level indirect */
192 #define BT_LEVEL2 4 /* Buffer holds double level indirect */
193 #define BT_LEVEL3 5 /* Buffer holds triple level indirect */
194 #define BT_EXTATTR 6 /* Buffer holds external attribute data */
195 #define BT_INODES 7 /* Buffer holds inodes */
196 #define BT_DIRDATA 8 /* Buffer holds directory data */
197 #define BT_DATA 9 /* Buffer holds user data */
198 #define BT_NUMBUFTYPES 10
199 #define BT_NAMES { \
200 "unknown", \
201 "Superblock", \
202 "Cylinder Group", \
203 "Single Level Indirect", \
204 "Double Level Indirect", \
205 "Triple Level Indirect", \
206 "External Attribute", \
207 "Inode Block", \
208 "Directory Contents", \
209 "User Data" }
210 extern char *buftype[];
211 #define BT_BUFTYPE(type) \
212 type < BT_NUMBUFTYPES ? buftype[type] : buftype[BT_UNKNOWN]
213 extern long readcnt[BT_NUMBUFTYPES];
214 extern long totalreadcnt[BT_NUMBUFTYPES];
215 extern struct timespec readtime[BT_NUMBUFTYPES];
216 extern struct timespec totalreadtime[BT_NUMBUFTYPES];
217 extern struct timespec startprog;
218
219 extern struct bufarea *icachebp; /* inode cache buffer */
220 extern struct bufarea sblk; /* file system superblock */
221 extern struct bufarea *pdirbp; /* current directory contents */
222
223 #define dirty(bp) do { \
224 if (fswritefd < 0) \
225 pfatal("SETTING DIRTY FLAG IN READ_ONLY MODE\n"); \
226 else \
227 (bp)->b_flags |= B_DIRTY; \
228 } while (0)
229 #define initbarea(bp, type) do { \
230 (bp)->b_bno = (ufs2_daddr_t)-4; \
231 (bp)->b_size = 0; \
232 (bp)->b_errs = 0; \
233 (bp)->b_flags = 0; \
234 (bp)->b_type = type; \
235 (bp)->b_refcnt = 0; \
236 (bp)->b_index = 0; \
237 } while (0)
238
239 #define sbdirty() dirty(&sblk)
240 #define sblock (*sblk.b_un.b_fs)
241
242 enum fixstate {DONTKNOW, NOFIX, FIX, IGNORE};
243 extern ino_t cursnapshot;
244
245 struct inodesc {
246 enum fixstate id_fix; /* policy on fixing errors */
247 int (*id_func)(struct inodesc *);
248 /* function to be applied to blocks of inode */
249 struct bufarea *id_bp; /* ckinode: buffer with indirect pointers */
250 union dinode *id_dp; /* ckinode: dinode being traversed */
251 ino_t id_number; /* inode number described */
252 ino_t id_parent; /* for DATA nodes, their parent */
253 ufs_lbn_t id_lbn; /* logical block number of current block */
254 ufs2_daddr_t id_blkno; /* current block number being examined */
255 int id_level; /* level of indirection of this block */
256 int id_numfrags; /* number of frags contained in block */
257 ufs_lbn_t id_lballoc; /* pass1: last LBN that is allocated */
258 off_t id_filesize; /* for DATA nodes, the size of the directory */
259 ufs2_daddr_t id_entryno;/* for DATA nodes, current entry number */
260 int id_loc; /* for DATA nodes, current location in dir */
261 struct direct *id_dirp; /* for DATA nodes, ptr to current entry */
262 char *id_name; /* for DATA nodes, name to find or enter */
263 char id_type; /* type of descriptor, DATA, ADDR, or SNAP */
264 };
265 /* file types */
266 #define DATA 1 /* a directory */
267 #define SNAP 2 /* a snapshot */
268 #define ADDR 3 /* anything but a directory or a snapshot */
269
270 /*
271 * Linked list of duplicate blocks.
272 *
273 * The list is composed of two parts. The first part of the
274 * list (from duplist through the node pointed to by muldup)
275 * contains a single copy of each duplicate block that has been
276 * found. The second part of the list (from muldup to the end)
277 * contains duplicate blocks that have been found more than once.
278 * To check if a block has been found as a duplicate it is only
279 * necessary to search from duplist through muldup. To find the
280 * total number of times that a block has been found as a duplicate
281 * the entire list must be searched for occurrences of the block
282 * in question. The following diagram shows a sample list where
283 * w (found twice), x (found once), y (found three times), and z
284 * (found once) are duplicate block numbers:
285 *
286 * w -> y -> x -> z -> y -> w -> y
287 * ^ ^
288 * | |
289 * duplist muldup
290 */
291 struct dups {
292 struct dups *next;
293 ufs2_daddr_t dup;
294 };
295 extern struct dups *duplist; /* head of dup list */
296 extern struct dups *muldup; /* end of unique duplicate dup block numbers */
297
298 /*
299 * Inode cache data structures.
300 */
301 struct inoinfo {
302 SLIST_ENTRY(inoinfo) i_hash; /* hash list */
303 ino_t i_number; /* inode number of this entry */
304 ino_t i_parent; /* inode number of parent */
305 ino_t i_dotdot; /* inode number of `..' */
306 size_t i_isize; /* size of inode */
307 u_int i_depth; /* depth of directory from root */
308 u_int i_flags; /* flags, see below */
309 u_int i_numblks; /* size of block array in bytes */
310 ufs2_daddr_t i_blks[1]; /* actually longer */
311 };
312 extern SLIST_HEAD(inohash, inoinfo) *inphash;
313 extern struct inoinfo **inpsort;
314 /*
315 * flags for struct inoinfo
316 */
317 #define INFO_NEW 0x0000001 /* replaced broken directory */
318
319 extern long dirhash, inplast;
320 extern unsigned long numdirs, listmax;
321 extern long countdirs; /* number of directories we actually found */
322
323 #define MIBSIZE 3 /* size of fsck sysctl MIBs */
324 extern int adjblkcnt[MIBSIZE]; /* MIB cmd to adjust inode block count */
325 extern int adjrefcnt[MIBSIZE]; /* MIB cmd to adjust inode reference count */
326 extern int adjndir[MIBSIZE]; /* MIB cmd to adjust number of directories */
327 extern int adjnbfree[MIBSIZE]; /* MIB cmd to adjust number of free blocks */
328 extern int adjnifree[MIBSIZE]; /* MIB cmd to adjust number of free inodes */
329 extern int adjnffree[MIBSIZE]; /* MIB cmd to adjust number of free frags */
330 extern int adjnumclusters[MIBSIZE]; /* MIB cmd adjust number of free clusters */
331 extern int adjdepth[MIBSIZE]; /* MIB cmd to adjust directory depth count */
332 extern int freefiles[MIBSIZE]; /* MIB cmd to free a set of files */
333 extern int freedirs[MIBSIZE]; /* MIB cmd to free a set of directories */
334 extern int freeblks[MIBSIZE]; /* MIB cmd to free a set of data blocks */
335 extern int setsize[MIBSIZE]; /* MIB cmd to set inode size */
336 extern struct fsck_cmd cmd; /* sysctl file system update commands */
337
338 extern int bkgrdcheck; /* determine if background check is possible */
339 extern int bkgrdsumadj; /* whether the kernel has the ability to adjust
340 the superblock summary fields */
341 extern off_t bflag; /* location of alternate super block */
342 extern int bkgrdflag; /* use a snapshot to run on an active system */
343 extern char *blockmap; /* ptr to primary blk allocation map */
344 extern char *cdevname; /* name of device being checked */
345 extern int cgheader_corrupt; /* one or more CG headers are corrupt */
346 extern char ckclean; /* only do work if not cleanly unmounted */
347 extern int ckhashadd; /* check hashes to be added */
348 extern char *copybuf; /* buffer to copy snapshot blocks */
349 extern int cvtlevel; /* convert to newer file system format */
350 extern long dev_bsize; /* computed value of DEV_BSIZE */
351 extern u_int real_dev_bsize; /* actual disk sector size, not overridden */
352 extern int debug; /* output debugging info */
353 extern int Eflag; /* delete empty data blocks */
354 extern int fsmodified; /* 1 => write done to file system */
355 extern int fsreadfd; /* file descriptor for reading file system */
356 extern int fswritefd; /* file descriptor for writing file system */
357 extern char havesb; /* superblock has been read */
358 extern int inoopt; /* trim out unused inodes */
359 extern ino_t lfdir; /* lost & found directory inode number */
360 extern int lfmode; /* lost & found directory creation mode */
361 extern const char *lfname; /* lost & found directory name */
362 extern ufs2_daddr_t maxfsblock; /* number of blocks in the file system */
363 extern ino_t maxino; /* number of inodes in file system */
364 extern ufs2_daddr_t n_blks; /* number of blocks in use */
365 extern ino_t n_files; /* number of files in use */
366 extern char nflag; /* assume a no response */
367 extern char preen; /* just fix normal inconsistencies */
368 extern char rerun; /* rerun fsck. Only used in non-preen mode */
369 extern char resolved; /* cleared if unresolved changes => not clean */
370 extern int returntosingle; /* 1 => return to single user mode on exit */
371 extern int sbhashfailed; /* when reading superblock check hash failed */
372 extern long secsize; /* actual disk sector size */
373 extern char skipclean; /* skip clean file systems if preening */
374 extern int snapcnt; /* number of active snapshots */
375 extern struct inode snaplist[FSMAXSNAP + 1]; /* list of active snapshots */
376 extern int sujrecovery; /* 1 => doing check using the journal */
377 extern int surrender; /* Give up if reads fail */
378 extern char usedsoftdep; /* just fix soft dependency inconsistencies */
379 extern int wantrestart; /* Restart fsck on early termination */
380 extern char yflag; /* assume a yes response */
381 extern int zflag; /* zero unused directory space */
382 extern int Zflag; /* zero empty data blocks */
383
384 extern volatile sig_atomic_t got_siginfo; /* received a SIGINFO */
385 extern volatile sig_atomic_t got_sigalarm; /* received a SIGALRM */
386
387 #define clearinode(dp) \
388 if (sblock.fs_magic == FS_UFS1_MAGIC) { \
389 (dp)->dp1 = zino.dp1; \
390 } else { \
391 (dp)->dp2 = zino.dp2; \
392 }
393 extern union dinode zino;
394
395 #define setbmap(blkno) setbit(blockmap, blkno)
396 #define testbmap(blkno) isset(blockmap, blkno)
397 #define clrbmap(blkno) clrbit(blockmap, blkno)
398
399 #define STOP 0x01
400 #define SKIP 0x02
401 #define KEEPON 0x04
402 #define ALTERED 0x08
403 #define FOUND 0x10
404
405 #define EEXIT 8 /* Standard error exit. */
406 #define ERERUN 16 /* fsck needs to be re-run. */
407 #define ERESTART -1
408
409 int flushentry(void);
410 /*
411 * Wrapper for malloc() that flushes the cylinder group cache to try
412 * to get space.
413 */
414 static inline void*
Malloc(size_t size)415 Malloc(size_t size)
416 {
417 void *retval;
418
419 while ((retval = malloc(size)) == NULL)
420 if (flushentry() == 0)
421 break;
422 return (retval);
423 }
424
425 /*
426 * Wrapper for calloc() that flushes the cylinder group cache to try
427 * to get space.
428 */
429 static inline void*
Calloc(size_t cnt,size_t size)430 Calloc(size_t cnt, size_t size)
431 {
432 void *retval;
433
434 while ((retval = calloc(cnt, size)) == NULL)
435 if (flushentry() == 0)
436 break;
437 return (retval);
438 }
439
440 struct fstab;
441
442
443 void adjust(struct inodesc *, int lcnt);
444 void alarmhandler(int sig);
445 ufs2_daddr_t allocblk(long cg, long frags, ufs2_daddr_t (*checkblkavail)
446 (ufs2_daddr_t blkno, long frags));
447 ino_t allocdir(ino_t parent, ino_t request, int mode);
448 ino_t allocino(ino_t request, int type);
449 void binval(struct bufarea *);
450 void blkerror(ino_t ino, const char *type, ufs2_daddr_t blk);
451 char *blockcheck(char *name);
452 int blread(int fd, char *buf, ufs2_daddr_t blk, long size);
453 void bufinit(void);
454 void blwrite(int fd, char *buf, ufs2_daddr_t blk, ssize_t size);
455 void blerase(int fd, ufs2_daddr_t blk, long size);
456 void blzero(int fd, ufs2_daddr_t blk, long size);
457 void brelse(struct bufarea *);
458 struct inoinfo *cacheino(union dinode *dp, ino_t inumber);
459 void catch(int);
460 void catchquit(int);
461 void cgdirty(struct bufarea *);
462 struct bufarea *cglookup(int cg);
463 int changeino(ino_t dir, const char *name, ino_t newnum, int depth);
464 void check_blkcnt(struct inode *ip);
465 int check_cgmagic(int cg, struct bufarea *cgbp);
466 void rebuild_cg(int cg, struct bufarea *cgbp);
467 void check_dirdepth(struct inoinfo *inp);
468 int chkfilesize(mode_t mode, u_int64_t filesize);
469 int chkrange(ufs2_daddr_t blk, int cnt);
470 void ckfini(int markclean);
471 int ckinode(union dinode *dp, struct inodesc *);
472 void clri(struct inodesc *, const char *type, int flag);
473 int clearentry(struct inodesc *);
474 void copyonwrite(struct fs *, struct bufarea *,
475 ufs2_daddr_t (*checkblkavail)(ufs2_daddr_t, long));
476 void direrror(ino_t ino, const char *errmesg);
477 int dirscan(struct inodesc *);
478 int dofix(struct inodesc *, const char *msg);
479 int eascan(struct inodesc *, struct ufs2_dinode *dp);
480 void fileerror(ino_t cwd, ino_t ino, const char *errmesg);
481 void finalIOstats(void);
482 int findino(struct inodesc *);
483 int findname(struct inodesc *);
484 void flush(int fd, struct bufarea *bp);
485 int freeblock(struct inodesc *);
486 void freedirino(ino_t ino, ino_t parent);
487 void freeino(ino_t ino);
488 void freeinodebuf(void);
489 void fsckinit(void);
490 void fsutilinit(void);
491 int ftypeok(union dinode *dp);
492 void getblk(struct bufarea *bp, ufs2_daddr_t blk, long size);
493 struct bufarea *getdatablk(ufs2_daddr_t blkno, long size, int type);
494 struct inoinfo *getinoinfo(ino_t inumber);
495 union dinode *getnextinode(ino_t inumber, int rebuiltcg);
496 void getpathname(char *namebuf, ino_t curdir, ino_t ino);
497 void ginode(ino_t, struct inode *);
498 void gjournal_check(const char *filesys);
499 void infohandler(int sig);
500 void irelse(struct inode *);
501 ufs2_daddr_t ino_blkatoff(union dinode *, ino_t, ufs_lbn_t, int *,
502 struct bufarea **);
503 void inocleanup(void);
504 void inodirty(struct inode *);
505 struct inostat *inoinfo(ino_t inum);
506 void IOstats(char *what);
507 int linkup(ino_t orphan, ino_t parentdir, char *name);
508 int makeentry(ino_t parent, ino_t ino, const char *name);
509 int openfilesys(char *dev);
510 void panic(const char *fmt, ...) __printflike(1, 2);
511 void pass1(void);
512 void pass1b(void);
513 int pass1check(struct inodesc *);
514 void pass2(void);
515 void pass3(void);
516 void pass4(void);
517 void pass5(void);
518 void pfatal(const char *fmt, ...) __printflike(1, 2);
519 void propagate(void);
520 void prtbuf(struct bufarea *, const char *, ...) __printflike(2, 3);
521 void prtinode(struct inode *);
522 void pwarn(const char *fmt, ...) __printflike(1, 2);
523 int readsb(int listerr);
524 int removecachedino(ino_t);
525 int reply(const char *question);
526 void rwerror(const char *mesg, ufs2_daddr_t blk);
527 void sblock_init(void);
528 void setinodebuf(int, ino_t);
529 int setup(char *dev);
530 int snapblkfree(struct fs *, ufs2_daddr_t, long, ino_t,
531 ufs2_daddr_t (*)(ufs2_daddr_t, long));
532 void snapremove(ino_t);
533 void snapflush(ufs2_daddr_t (*checkblkavail)(ufs2_daddr_t, long));
534 ufs2_daddr_t std_checkblkavail(ufs2_daddr_t blkno, long frags);
535 ufs2_daddr_t suj_checkblkavail(ufs2_daddr_t, long);
536 int suj_check(const char *filesys);
537 void update_maps(struct cg *, struct cg*, int);
538
539 #endif /* !_FSCK_H_ */
540