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NetBSD/sbin/fsck_lfs/vars.c

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Several fixes to improve the reliability of the roll-forward agent. Also, note "properly orphaned" files as distinct from corrupted files.
2006-09-01 23:52:48 +04:00
/* $NetBSD: vars.c,v 1.12 2006/09/01 19:52:48 perseant Exp $ */
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
/*-
* Copyright (c) 1999, 2000, 2001, 2002, 2003 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 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.
*/
RCS Id police.
1999-07-03 23:55:03 +04:00
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
#include <sys/param.h>
#include <sys/time.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ufs/dir.h>
Convert to NetBSD source code style
2000-05-23 05:48:52 +04:00
#include <sys/mount.h> /* XXX */
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
#include <ufs/lfs/lfs.h>
#include "fsck.h"
/* variables previously of file scope (from fsck.h) */
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
struct dups *duplist; /* head of dup list */
struct dups *muldup; /* end of unique duplicate dup block numbers */
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
struct zlncnt *zlnhead; /* head of zero link count list */
Several fixes to improve the reliability of the roll-forward agent. Also, note "properly orphaned" files as distinct from corrupted files.
2006-09-01 23:52:48 +04:00
struct zlncnt *orphead = NULL; /* head of "properly orphaned" list */
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
struct lfs *fs;
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
daddr_t idaddr; /* inode block containing ifile inode */
long numdirs, listmax, inplast;
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
long dev_bsize; /* computed value of DEV_BSIZE */
long secsize; /* actual disk sector size */
char nflag; /* assume a no response */
char yflag; /* assume a yes response */
int bflag; /* location of alternate super block */
int debug; /* output debugging info */
int exitonfail;
int preen; /* just fix normal inconsistencies */
Document "-f" (force check) flag. Implement and document "-q" (quiet).
2005-04-15 01:15:59 +04:00
int quiet; /* don't report clean filesystems */
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
char havesb; /* superblock has been read */
char skipclean; /* skip clean file systems if preening */
int fsmodified; /* 1 => write done to file system */
int fsreadfd; /* file descriptor for reading file system */
int rerun; /* rerun fsck. Only used in non-preen mode */
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
daddr_t maxfsblock; /* number of blocks in the file system */
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
#ifndef VERBOSE_BLOCKMAP
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
char *blockmap; /* ptr to primary blk allocation map */
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
#else
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
ino_t *blockmap;
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
#endif
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
ino_t maxino; /* number of inodes in file system */
ino_t lastino; /* last inode in use */
char *statemap; /* ptr to inode state table */
char *typemap; /* ptr to inode type table */
int16_t *lncntp; /* ptr to link count table */
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
ino_t lfdir; /* lost & found directory inode number */
int lfmode; /* lost & found directory creation mode */
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
Add working writing ability to fsck_lfs, including roll-forward, based on a partial-segment writer ported from the kernel.
2003-03-28 11:09:52 +03:00
daddr_t n_blks; /* number of blocks in use */
ino_t n_files; /* number of files in use */
Initial checkin of fsck_lfs. This version cannot do any repair (-p flag does nothing, and one of -p or -n is required) but can be useful as a diagnostic tool.
1999-03-18 05:02:18 +03:00
Add support for UFS2. UFS2 is an enhanced FFS, adding support for 64 bit block pointers, extended attribute storage, and a few other things. This commit does not yet include the code to manipulate the extended storage (for e.g. ACLs), this will be done later. Originally written by Kirk McKusick and Network Associates Laboratories for FreeBSD.
2003-04-02 14:39:19 +04:00
struct ufs1_dinode zino;
Various improvements to fsck_lfs, to wit: * Add lfs_balloc capability to the lfs library. * Extend the Ifile if we run out of free inodes when creating lost+found. * Don't roll forward if we have allocated a lost+found, to avoid conflicts when adding new files in roll-forward. * Make some messages slightly more verbose (e.g. include inode number, and use pwarn() instead of printf() so the messages include the device name when preening). * Change superblock detection/avoidance to use the offset table in the primary superblock, rather than looking at the contents. * Be more verbose about various operations when passed the -d flag, especially roll-forward. * Be more careful about dirops during roll forward, since the cleaner can sometimes write blocks from dirop vnodes. Detect and avoid this problem. * Always check the free list, even if given -i; if we're going to write it we have to check it first. * Mark inodes dirty when blocks are found during roll forward, so the inodes are written with the new block locations. * Update size of inodes if blocks beyond EOF are found during roll forward. * Fix segment accounting for blocks and inodes found during roll forward. * Report statistics on roll forward: how many new/deleted/moved files and how many updated blocks (or "nothing new"). * Don't care if the device being checked is really a device, if we have been passed the -f flag (to facilitate automated testing). * When writing to the disk, use the current time in the segment headers rathern than time 0. * When passed the -i flag, locate the partial segment containing the Ifile inode and use that to calculate lfs_offset, lfs_curseg, lfs_nextseg. (Again for automated testing.)
2006-07-19 03:37:13 +04:00
int no_roll_forward = 0; /* don't roll forward */