42614ed3f3
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.
396 lines
12 KiB
C
396 lines
12 KiB
C
/* $NetBSD: setup.c,v 1.16 2003/04/02 10:39:28 fvdl Exp $ */
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/*-
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* Copyright (c) 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Konrad E. Schroder <perseant@hhhh.org>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1980, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* #define DKTYPENAMES */
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#define FSTYPENAMES
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/buf.h>
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#include <sys/mount.h>
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#include <sys/queue.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/disklabel.h>
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#include <sys/file.h>
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#include <ufs/ufs/inode.h>
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#include <ufs/ufs/ufsmount.h>
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#define vnode uvnode
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#include <ufs/lfs/lfs.h>
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#undef vnode
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "bufcache.h"
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#include "vnode.h"
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#include "lfs.h"
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#include "fsck.h"
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#include "extern.h"
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#include "fsutil.h"
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#define POWEROF2(num) (((num) & ((num) - 1)) == 0)
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u_quad_t maxtable[] = {
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/* 1 */ -1,
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/* 2 */ -1,
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/* 4 */ -1,
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/* 8 */ -1,
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/* 16 */ -1,
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/* 32 */ -1,
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/* 64 */ -1,
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/* 128 */ -1,
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/* 256 */ -1,
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/* 512 */ NDADDR + 128 + 128 * 128 + 128 * 128 * 128,
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/* 1024 */ NDADDR + 256 + 256 * 256 + 256 * 256 * 256,
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/* 2048 */ NDADDR + 512 + 512 * 512 + 512 * 512 * 512,
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/* 4096 */ NDADDR + 1024 + 1024 * 1024 + 1024 * 1024 * 1024,
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/* 8192 */ 1 << 31,
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/* 16 K */ 1 << 31,
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/* 32 K */ 1 << 31,
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};
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static struct disklabel *getdisklabel(const char *, int);
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ufs_daddr_t *din_table;
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SEGUSE *seg_table;
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#ifdef DKTYPENAMES
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int useless(void);
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int
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useless(void)
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{
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char **foo = (char **) dktypenames;
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char **bar = (char **) fscknames;
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return foo - bar;
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}
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#endif
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int
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setup(const char *dev)
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{
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long bmapsize;
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struct disklabel *lp;
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struct stat statb;
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int doskipclean;
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u_int64_t maxfilesize;
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int open_flags;
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struct uvnode *ivp;
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struct ubuf *bp;
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int i;
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SEGUSE *sup;
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havesb = 0;
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doskipclean = skipclean;
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if (stat(dev, &statb) < 0) {
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printf("Can't stat %s: %s\n", dev, strerror(errno));
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return (0);
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}
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if (!S_ISCHR(statb.st_mode)) {
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pfatal("%s is not a character device", dev);
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if (reply("CONTINUE") == 0)
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return (0);
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}
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if (nflag)
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open_flags = O_RDONLY;
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else
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open_flags = O_RDWR;
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if ((fsreadfd = open(dev, open_flags)) < 0) {
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printf("Can't open %s: %s\n", dev, strerror(errno));
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return (0);
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}
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if (preen == 0)
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printf("** %s", dev);
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if (nflag) {
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if (preen)
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pfatal("NO WRITE ACCESS");
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printf(" (NO WRITE)");
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}
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if (preen == 0)
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printf("\n");
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fsmodified = 0;
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lfdir = 0;
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bufinit();
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fs = lfs_init(fsreadfd, bflag, idaddr, debug);
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if (fs == NULL) {
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if (preen)
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printf("%s: ", cdevname());
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pfatal("BAD SUPER BLOCK\n");
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}
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if ((lp = getdisklabel((char *) NULL, fsreadfd)) != NULL)
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dev_bsize = secsize = lp->d_secsize;
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else
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dev_bsize = secsize = DEV_BSIZE;
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#if 0
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if (fs->lfs_pflags & LFS_PF_CLEAN) {
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if (doskipclean) {
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pwarn("%sile system is clean; not checking\n",
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preen ? "f" : "** F");
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return (-1);
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}
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if (!preen)
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pwarn("** File system is already clean\n");
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}
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#endif
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if (debug) {
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printf("idaddr = 0x%lx\n", idaddr ? (unsigned long)idaddr :
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(unsigned long)fs->lfs_idaddr);
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printf("dev_bsize = %lu\n", dev_bsize);
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printf("lfs_bsize = %lu\n", (unsigned long) fs->lfs_bsize);
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printf("lfs_fsize = %lu\n", (unsigned long) fs->lfs_fsize);
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printf("lfs_frag = %lu\n", (unsigned long) fs->lfs_frag);
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printf("lfs_inopb = %lu\n", (unsigned long) fs->lfs_inopb);
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}
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if (fs->lfs_version == 1)
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maxfsblock = fs->lfs_size * (fs->lfs_bsize / dev_bsize);
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else
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maxfsblock = fs->lfs_size;
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maxfilesize = maxtable[fs->lfs_bshift] << fs->lfs_bshift;
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if ((fs->lfs_minfree < 0 || fs->lfs_minfree > 99)) {
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pfatal("IMPOSSIBLE MINFREE=%d IN SUPERBLOCK",
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fs->lfs_minfree);
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if (reply("SET TO DEFAULT") == 1) {
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fs->lfs_minfree = 10;
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sbdirty();
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}
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}
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if (fs->lfs_bmask != fs->lfs_bsize - 1) {
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pwarn("INCORRECT BMASK=%x IN SUPERBLOCK (should be %x)",
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(unsigned int) fs->lfs_bmask,
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(unsigned int) fs->lfs_bsize - 1);
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fs->lfs_bmask = fs->lfs_bsize - 1;
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if (preen)
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printf(" (FIXED)\n");
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if (preen || reply("FIX") == 1) {
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sbdirty();
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}
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}
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if (fs->lfs_ffmask != fs->lfs_fsize - 1) {
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pwarn("INCORRECT FFMASK=%" PRId64 " IN SUPERBLOCK",
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fs->lfs_ffmask);
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fs->lfs_ffmask = fs->lfs_fsize - 1;
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if (preen)
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printf(" (FIXED)\n");
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if (preen || reply("FIX") == 1) {
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sbdirty();
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}
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}
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if (fs->lfs_fbmask != (1 << fs->lfs_fbshift) - 1) {
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pwarn("INCORRECT FFMASK=%" PRId64 " IN SUPERBLOCK",
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fs->lfs_ffmask);
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fs->lfs_fbmask = (1 << fs->lfs_fbshift) - 1;
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if (preen)
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printf(" (FIXED)\n");
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if (preen || reply("FIX") == 1) {
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sbdirty();
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}
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}
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if (fs->lfs_maxfilesize != maxfilesize) {
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pwarn(
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"INCORRECT MAXFILESIZE=%llu IN SUPERBLOCK (should be %llu)",
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(unsigned long long) fs->lfs_maxfilesize,
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(unsigned long long) maxfilesize);
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fs->lfs_maxfilesize = maxfilesize;
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if (preen)
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printf(" (FIXED)\n");
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if (preen || reply("FIX") == 1) {
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sbdirty();
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}
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}
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if (fs->lfs_maxsymlinklen != MAXSYMLINKLEN_UFS1) {
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pwarn("INCORRECT MAXSYMLINKLEN=%d IN SUPERBLOCK",
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fs->lfs_maxsymlinklen);
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fs->lfs_maxsymlinklen = MAXSYMLINKLEN_UFS1;
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if (preen)
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printf(" (FIXED)\n");
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if (preen || reply("FIX") == 1) {
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sbdirty();
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}
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}
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/*
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* Read in the Ifile; we'll be using it a lot.
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* XXX If the Ifile is corrupted we are in bad shape. We need to
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* XXX run through the segment headers of the entire disk to
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* XXX reconstruct the inode table, then pretend all segments are
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* XXX dirty while we do the rest.
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*/
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ivp = fs->lfs_ivnode;
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maxino = ((VTOI(ivp)->i_ffs1_size - (fs->lfs_cleansz + fs->lfs_segtabsz)
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* fs->lfs_bsize) / fs->lfs_bsize) * fs->lfs_ifpb;
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if (debug)
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printf("maxino = %d\n", maxino);
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for (i = 0; i < VTOI(ivp)->i_ffs1_size; i += fs->lfs_bsize) {
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bread(ivp, i >> fs->lfs_bshift, fs->lfs_bsize, NOCRED, &bp);
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/* XXX check B_ERROR */
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brelse(bp);
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}
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/*
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* allocate and initialize the necessary maps
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*/
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din_table = (ufs_daddr_t *) malloc(maxino * sizeof(*din_table));
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memset(din_table, 0, maxino * sizeof(*din_table));
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seg_table = (SEGUSE *) malloc(fs->lfs_nseg * sizeof(SEGUSE));
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memset(seg_table, 0, fs->lfs_nseg * sizeof(SEGUSE));
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/* Get segment flags */
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for (i = 0; i < fs->lfs_nseg; i++) {
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LFS_SEGENTRY(sup, fs, i, bp);
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seg_table[i].su_flags = sup->su_flags & ~SEGUSE_ACTIVE;
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if (preen)
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seg_table[i].su_nbytes = sup->su_nbytes;
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brelse(bp);
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}
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/* Initialize Ifile entry */
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din_table[fs->lfs_ifile] = fs->lfs_idaddr;
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seg_table[dtosn(fs, fs->lfs_idaddr)].su_nbytes += DINODE1_SIZE;
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#ifndef VERBOSE_BLOCKMAP
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bmapsize = roundup(howmany(maxfsblock, NBBY), sizeof(int16_t));
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blockmap = calloc((unsigned) bmapsize, sizeof(char));
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#else
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bmapsize = maxfsblock * sizeof(ino_t);
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blockmap = (ino_t *) calloc(maxfsblock, sizeof(ino_t));
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#endif
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if (blockmap == NULL) {
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printf("cannot alloc %u bytes for blockmap\n",
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(unsigned) bmapsize);
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goto badsblabel;
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}
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statemap = calloc((unsigned) maxino, sizeof(char));
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if (statemap == NULL) {
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printf("cannot alloc %u bytes for statemap\n",
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(unsigned) maxino);
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goto badsblabel;
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}
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typemap = calloc((unsigned) maxino, sizeof(char));
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if (typemap == NULL) {
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printf("cannot alloc %u bytes for typemap\n",
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(unsigned) maxino);
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goto badsblabel;
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}
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lncntp = (int16_t *) calloc((unsigned) maxino, sizeof(int16_t));
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if (lncntp == NULL) {
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printf("cannot alloc %lu bytes for lncntp\n",
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(unsigned long) maxino * sizeof(int16_t));
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goto badsblabel;
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}
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if (preen) {
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n_files = fs->lfs_nfiles;
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n_blks = fs->lfs_dsize - fs->lfs_bfree;
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numdirs = maxino;
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inplast = 0;
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listmax = numdirs + 10;
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inpsort = (struct inoinfo **) calloc((unsigned) listmax,
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sizeof(struct inoinfo *));
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inphead = (struct inoinfo **) calloc((unsigned) numdirs,
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sizeof(struct inoinfo *));
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if (inpsort == NULL || inphead == NULL) {
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printf("cannot alloc %lu bytes for inphead\n",
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(unsigned long) numdirs * sizeof(struct inoinfo *));
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exit(1);
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}
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}
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return (1);
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badsblabel:
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ckfini(0);
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return (0);
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}
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static struct disklabel *
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getdisklabel(const char *s, int fd)
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{
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static struct disklabel lab;
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if (ioctl(fd, DIOCGDINFO, (char *) &lab) < 0) {
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if (s == NULL)
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return ((struct disklabel *) NULL);
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pwarn("ioctl (GCINFO): %s\n", strerror(errno));
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return NULL;
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}
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return (&lab);
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}
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