NetBSD/sbin/fsck_lfs/fsck.h

183 lines
6.8 KiB
C

/* $NetBSD: fsck.h,v 1.27 2020/04/03 19:36:33 joerg Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Konrad E. Schroder <perseant@hhhh.org>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 1980, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)fsck.h 8.1 (Berkeley) 6/5/93
*/
#ifdef KS_DEBUG
#include <err.h>
#define debug_printf warn
#else
#define debug_printf
#endif
#define MAXDUP 10 /* limit on dup blks (per inode) */
#define MAXBAD 10 /* limit on bad blks (per inode) */
#ifndef BUFSIZ
#define BUFSIZ 1024
#endif
#define USTATE 01 /* inode not allocated */
#define FSTATE 02 /* inode is file */
#define DSTATE 03 /* inode is directory */
#define DFOUND 04 /* directory found during descent */
#define DCLEAR 05 /* directory is to be cleared */
#define FCLEAR 06 /* file is to be cleared */
#define EEXIT 8 /* Standard error exit */
enum fixstate {
DONTKNOW, NOFIX, FIX, IGNORE
};
struct inodesc {
enum fixstate id_fix; /* policy on fixing errors */
int (*id_func) (struct inodesc *); /* function to be applied to
* blocks of inode */
ino_t id_number; /* inode number described */
ino_t id_parent; /* for DATA nodes, their parent */
daddr_t id_blkno; /* current block number being examined */
daddr_t id_lblkno; /* current logical block number */
int id_numfrags; /* number of frags contained in block */
off_t id_filesize; /* for DATA nodes, the size of the directory */
int id_loc; /* for DATA nodes, current location in dir */
long long id_entryno; /* for DATA nodes, current entry number */
LFS_DIRHEADER *id_dirp; /* for DATA nodes, ptr to current entry */
const char *id_name; /* for DATA nodes, name to find or enter */
char id_type; /* type of descriptor, DATA or ADDR */
};
/* file types */
#define DATA 1
#define ADDR 2
/*
* Linked list of duplicate blocks.
*
* The list is composed of two parts. The first part of the
* list (from duplist through the node pointed to by muldup)
* contains a single copy of each duplicate block that has been
* found. The second part of the list (from muldup to the end)
* contains duplicate blocks that have been found more than once.
* To check if a block has been found as a duplicate it is only
* necessary to search from duplist through muldup. To find the
* total number of times that a block has been found as a duplicate
* the entire list must be searched for occurrences of the block
* in question. The following diagram shows a sample list where
* w (found twice), x (found once), y (found three times), and z
* (found once) are duplicate block numbers:
*
* w -> y -> x -> z -> y -> w -> y
* ^ ^
* | |
* duplist muldup
*/
struct dups {
struct dups *next;
daddr_t dup;
};
/*
* Linked list of inodes with zero link counts.
*/
struct zlncnt {
struct zlncnt *next;
ino_t zlncnt;
};
/*
* Inode cache data structures.
*/
extern struct inoinfo {
struct inoinfo *i_nexthash; /* next entry in hash chain */
struct inoinfo *i_child, *i_sibling, *i_parentp;
ino_t i_number; /* inode number of this entry */
ino_t i_parent; /* inode number of parent */
ino_t i_dotdot; /* inode number of `..' */
size_t i_isize; /* size of inode */
u_int i_numblks; /* size of block array in bytes */
daddr_t i_blks[1]; /* actually longer */
} **inphead, **inpsort;
#ifndef VERBOSE_BLOCKMAP
#define setbmap(blkno) setbit(blockmap, blkno)
#define testbmap(blkno) isset(blockmap, blkno)
#define clrbmap(blkno) clrbit(blockmap, blkno)
#else
#define setbmap(blkno,ino) if(blkno > maxfsblock)raise(1); else blockmap[blkno] = ino
#define testbmap(blkno) blockmap[blkno]
#define clrbmap(blkno) blockmap[blkno] = 0
#endif
extern int Uflag; /* resolve user names */
#define STOP 0x01
#define SKIP 0x02
#define KEEPON 0x04
#define ALTERED 0x08
#define FOUND 0x10
ino_t allocino(ino_t, int);
int ino_to_fsba(struct lfs *, ino_t);
union lfs_dinode *ginode(ino_t);
struct inoinfo *getinoinfo(ino_t);
daddr_t lfs_ino_daddr(ino_t);
void clearinode(ino_t);
void reset_maxino(ino_t);
#include "fsck_vars.h"