into ffs_sbsearch() to allow use by other parts of the system. Historically only fsck_ffs(8), the UFS filesystem checker, had code to track down and use alternate UFS superblocks. Since fsdb(8) used much of the fsck_ffs(8) implementation it had some ability to track down alternate superblocks. This change extracts the code to track down alternate superblocks from fsck_ffs(8) and puts it into a new function ffs_sbsearch() in sys/ufs/ffs/ffs_subr.c. Like ffs_sbget() and ffs_sbput() also found in ffs_subr.c, these functions can be used directly by the kernel subsystems. Additionally they are exported to the UFS library, libufs(8) so that they can be used by user-level programs. The new functions added to libufs(8) are sbfind(3) that is an alternative to sbread(3) and sbsearch(3) that is an alternative to sbget(3). See their manual pages for further details. The utilities that have been changed to search for superblocks are dumpfs(8), fsdb(8), ffsinfo(8), and fsck_ffs(8). Also, the prtblknos(8) tool found in tools/diag/prtblknos searches for superblocks. The UFS specific mount code uses the superblock search interface when mounting the root filesystem and when the administrator doing a mount(8) command specifies the force flag (-f). The standalone UFS boot code (found in stand/libsa/ufs.c) uses the superblock search code in the hope of being able to get the system up and running so that fsck_ffs(8) can be used to get the filesystem cleaned up. The following utilities have not been changed to search for superblocks: clri(8), tunefs(8), snapinfo(8), fstyp(8), quot(8), dump(8), fsirand(8), growfs(8), quotacheck(8), gjournal(8), and glabel(8). When these utilities fail, they do report the cause of the failure. The one exception is the tasting code used to try and figure what a given disk contains. The tasting code will remain silent so as not to put out a slew of messages as it trying to taste every new mass storage device that shows up. Reviewed by: kib Reviewed by: Warner Losh Tested by: Peter Holm Differential Revision: https://reviews.freebsd.org/D36053 Sponsored by: The FreeBSD Foundation
1246 lines
29 KiB
C
1246 lines
29 KiB
C
/* $NetBSD: fsdb.c,v 1.2 1995/10/08 23:18:10 thorpej Exp $ */
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|
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1995 John T. Kohl
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* 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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/param.h>
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#include <ctype.h>
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#include <err.h>
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#include <grp.h>
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#include <histedit.h>
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#include <pwd.h>
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#include <stdint.h>
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#include <string.h>
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#include <time.h>
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#include <timeconv.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ufs/dir.h>
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#include <ufs/ffs/fs.h>
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#include "fsdb.h"
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#include "fsck.h"
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static void usage(void) __dead2;
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int cmdloop(void);
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static int compare_blk32(uint32_t *wantedblk, uint32_t curblk);
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static int compare_blk64(uint64_t *wantedblk, uint64_t curblk);
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static int founddatablk(uint64_t blk);
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static int find_blks32(uint32_t *buf, int size, uint32_t *blknum);
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static int find_blks64(uint64_t *buf, int size, uint64_t *blknum);
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static int find_indirblks32(uint32_t blk, int ind_level, uint32_t *blknum);
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static int find_indirblks64(uint64_t blk, int ind_level, uint64_t *blknum);
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struct inode curip;
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union dinode *curinode;
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ino_t curinum, ocurrent;
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static void
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usage(void)
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{
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fprintf(stderr, "usage: fsdb [-d] [-f] [-r] fsname\n");
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exit(1);
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}
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|
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/*
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* We suck in lots of fsck code, and just pick & choose the stuff we want.
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*
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* fsreadfd is set up to read from the file system, fswritefd to write to
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* the file system.
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*/
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int
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main(int argc, char *argv[])
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{
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int ch, rval;
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char *fsys = NULL;
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|
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while (-1 != (ch = getopt(argc, argv, "fdr"))) {
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switch (ch) {
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case 'f':
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/* The -f option is left for historical
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* reasons and has no meaning.
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*/
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break;
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case 'd':
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debug++;
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break;
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case 'r':
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nflag++; /* "no" in fsck, readonly for us */
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break;
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 1)
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usage();
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else
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fsys = argv[0];
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sblock_init();
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if (openfilesys(fsys) == 0 || readsb() == 0 || setup(fsys) == 0)
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errx(1, "cannot set up file system `%s'", fsys);
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if (fswritefd < 0)
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nflag++;
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printf("%s file system `%s'\nLast Mounted on %s\n",
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nflag? "Examining": "Editing", fsys, sblock.fs_fsmnt);
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rval = cmdloop();
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if (!nflag) {
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sblock.fs_clean = 0; /* mark it dirty */
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sbdirty();
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ckfini(0);
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printf("*** FILE SYSTEM MARKED DIRTY\n");
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printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n");
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printf("*** IF IT IS MOUNTED, RE-MOUNT WITH -u -o reload\n");
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}
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exit(rval);
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}
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#define CMDFUNC(func) int func(int argc, char *argv[])
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#define CMDFUNCSTART(func) int func(int argc, char *argv[])
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CMDFUNC(helpfn);
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CMDFUNC(focus); /* focus on inode */
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CMDFUNC(active); /* print active inode */
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CMDFUNC(blocks); /* print blocks for active inode */
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CMDFUNC(focusname); /* focus by name */
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CMDFUNC(zapi); /* clear inode */
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|
CMDFUNC(uplink); /* incr link */
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CMDFUNC(downlink); /* decr link */
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CMDFUNC(linkcount); /* set link count */
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CMDFUNC(quit); /* quit */
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|
CMDFUNC(findblk); /* find block */
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CMDFUNC(ls); /* list directory */
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|
CMDFUNC(rm); /* remove name */
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|
CMDFUNC(ln); /* add name */
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|
CMDFUNC(newtype); /* change type */
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|
CMDFUNC(chmode); /* change mode */
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|
CMDFUNC(chlen); /* change length */
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CMDFUNC(chaflags); /* change flags */
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CMDFUNC(chgen); /* change generation */
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CMDFUNC(chowner); /* change owner */
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CMDFUNC(chgroup); /* Change group */
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CMDFUNC(back); /* pop back to last ino */
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CMDFUNC(chbtime); /* Change btime */
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CMDFUNC(chmtime); /* Change mtime */
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CMDFUNC(chctime); /* Change ctime */
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CMDFUNC(chatime); /* Change atime */
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CMDFUNC(chinum); /* Change inode # of dirent */
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CMDFUNC(chname); /* Change dirname of dirent */
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CMDFUNC(chsize); /* Change size */
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struct cmdtable cmds[] = {
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{ "help", "Print out help", 1, 1, FL_RO, helpfn },
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{ "?", "Print out help", 1, 1, FL_RO, helpfn },
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{ "inode", "Set active inode to INUM", 2, 2, FL_RO, focus },
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{ "clri", "Clear inode INUM", 2, 2, FL_WR, zapi },
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{ "lookup", "Set active inode by looking up NAME", 2, 2, FL_RO | FL_ST, focusname },
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{ "cd", "Set active inode by looking up NAME", 2, 2, FL_RO | FL_ST, focusname },
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{ "back", "Go to previous active inode", 1, 1, FL_RO, back },
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{ "active", "Print active inode", 1, 1, FL_RO, active },
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{ "print", "Print active inode", 1, 1, FL_RO, active },
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{ "blocks", "Print block numbers of active inode", 1, 1, FL_RO, blocks },
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{ "uplink", "Increment link count", 1, 1, FL_WR, uplink },
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{ "downlink", "Decrement link count", 1, 1, FL_WR, downlink },
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{ "linkcount", "Set link count to COUNT", 2, 2, FL_WR, linkcount },
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{ "findblk", "Find inode owning disk block(s)", 2, 33, FL_RO, findblk},
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{ "ls", "List current inode as directory", 1, 1, FL_RO, ls },
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{ "rm", "Remove NAME from current inode directory", 2, 2, FL_WR | FL_ST, rm },
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{ "del", "Remove NAME from current inode directory", 2, 2, FL_WR | FL_ST, rm },
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{ "ln", "Hardlink INO into current inode directory as NAME", 3, 3, FL_WR | FL_ST, ln },
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{ "chinum", "Change dir entry number INDEX to INUM", 3, 3, FL_WR, chinum },
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{ "chname", "Change dir entry number INDEX to NAME", 3, 3, FL_WR | FL_ST, chname },
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{ "chtype", "Change type of current inode to TYPE", 2, 2, FL_WR, newtype },
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|
{ "chmod", "Change mode of current inode to MODE", 2, 2, FL_WR, chmode },
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{ "chlen", "Change length of current inode to LENGTH", 2, 2, FL_WR, chlen },
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{ "chown", "Change owner of current inode to OWNER", 2, 2, FL_WR, chowner },
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{ "chgrp", "Change group of current inode to GROUP", 2, 2, FL_WR, chgroup },
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{ "chflags", "Change flags of current inode to FLAGS", 2, 2, FL_WR, chaflags },
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{ "chgen", "Change generation number of current inode to GEN", 2, 2, FL_WR, chgen },
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{ "chsize", "Change size of current inode to SIZE", 2, 2, FL_WR, chsize },
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{ "btime", "Change btime of current inode to BTIME", 2, 2, FL_WR, chbtime },
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{ "mtime", "Change mtime of current inode to MTIME", 2, 2, FL_WR, chmtime },
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{ "ctime", "Change ctime of current inode to CTIME", 2, 2, FL_WR, chctime },
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{ "atime", "Change atime of current inode to ATIME", 2, 2, FL_WR, chatime },
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{ "quit", "Exit", 1, 1, FL_RO, quit },
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{ "q", "Exit", 1, 1, FL_RO, quit },
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{ "exit", "Exit", 1, 1, FL_RO, quit },
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{ NULL, 0, 0, 0, 0, NULL },
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};
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int
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helpfn(int argc, char *argv[])
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|
{
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|
struct cmdtable *cmdtp;
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|
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|
printf("Commands are:\n%-10s %5s %5s %s\n",
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"command", "min args", "max args", "what");
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for (cmdtp = cmds; cmdtp->cmd; cmdtp++)
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|
printf("%-10s %5u %5u %s\n",
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cmdtp->cmd, cmdtp->minargc-1, cmdtp->maxargc-1, cmdtp->helptxt);
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return 0;
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|
}
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|
|
char *
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prompt(EditLine *el)
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|
{
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|
static char pstring[64];
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|
snprintf(pstring, sizeof(pstring), "fsdb (inum: %ju)> ",
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(uintmax_t)curinum);
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|
return pstring;
|
|
}
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|
|
static void
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|
setcurinode(ino_t inum)
|
|
{
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|
|
|
if (curip.i_number != 0)
|
|
irelse(&curip);
|
|
ginode(inum, &curip);
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|
curinode = curip.i_dp;
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|
curinum = inum;
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|
}
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|
|
int
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|
cmdloop(void)
|
|
{
|
|
char *line;
|
|
const char *elline;
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|
int cmd_argc, rval = 0, known;
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|
#define scratch known
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|
char **cmd_argv;
|
|
struct cmdtable *cmdp;
|
|
History *hist;
|
|
EditLine *elptr;
|
|
HistEvent he;
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|
|
|
setcurinode(UFS_ROOTINO);
|
|
printactive(0);
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|
|
|
hist = history_init();
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|
history(hist, &he, H_SETSIZE, 100); /* 100 elt history buffer */
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|
|
|
elptr = el_init("fsdb", stdin, stdout, stderr);
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|
el_set(elptr, EL_EDITOR, "emacs");
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|
el_set(elptr, EL_PROMPT, prompt);
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|
el_set(elptr, EL_HIST, history, hist);
|
|
el_source(elptr, NULL);
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|
|
|
while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) {
|
|
if (debug)
|
|
printf("command `%s'\n", elline);
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|
|
|
history(hist, &he, H_ENTER, elline);
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|
|
|
line = strdup(elline);
|
|
cmd_argv = crack(line, &cmd_argc);
|
|
/*
|
|
* el_parse returns -1 to signal that it's not been handled
|
|
* internally.
|
|
*/
|
|
if (el_parse(elptr, cmd_argc, (const char **)cmd_argv) != -1)
|
|
continue;
|
|
if (cmd_argc) {
|
|
known = 0;
|
|
for (cmdp = cmds; cmdp->cmd; cmdp++) {
|
|
if (!strcmp(cmdp->cmd, cmd_argv[0])) {
|
|
if ((cmdp->flags & FL_WR) == FL_WR && nflag)
|
|
warnx("`%s' requires write access", cmd_argv[0]),
|
|
rval = 1;
|
|
else if (cmd_argc >= cmdp->minargc &&
|
|
cmd_argc <= cmdp->maxargc)
|
|
rval = (*cmdp->handler)(cmd_argc, cmd_argv);
|
|
else if (cmd_argc >= cmdp->minargc &&
|
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(cmdp->flags & FL_ST) == FL_ST) {
|
|
strcpy(line, elline);
|
|
cmd_argv = recrack(line, &cmd_argc, cmdp->maxargc);
|
|
rval = (*cmdp->handler)(cmd_argc, cmd_argv);
|
|
} else
|
|
rval = argcount(cmdp, cmd_argc, cmd_argv);
|
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known = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!known)
|
|
warnx("unknown command `%s'", cmd_argv[0]), rval = 1;
|
|
} else
|
|
rval = 0;
|
|
free(line);
|
|
if (rval < 0) {
|
|
/* user typed "quit" */
|
|
irelse(&curip);
|
|
return 0;
|
|
}
|
|
if (rval)
|
|
warnx("rval was %d", rval);
|
|
}
|
|
el_end(elptr);
|
|
history_end(hist);
|
|
irelse(&curip);
|
|
return rval;
|
|
}
|
|
|
|
#define GETINUM(ac,inum) inum = strtoul(argv[ac], &cp, 0); \
|
|
if (inum < UFS_ROOTINO || inum > maxino || cp == argv[ac] || *cp != '\0' ) { \
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|
printf("inode %ju out of range; range is [%ju,%ju]\n", \
|
|
(uintmax_t)inum, (uintmax_t)UFS_ROOTINO, (uintmax_t)maxino);\
|
|
return 1; \
|
|
}
|
|
|
|
/*
|
|
* Focus on given inode number
|
|
*/
|
|
CMDFUNCSTART(focus)
|
|
{
|
|
ino_t inum;
|
|
char *cp;
|
|
|
|
GETINUM(1,inum);
|
|
ocurrent = curinum;
|
|
setcurinode(inum);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(back)
|
|
{
|
|
setcurinode(ocurrent);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(zapi)
|
|
{
|
|
struct inode ip;
|
|
ino_t inum;
|
|
char *cp;
|
|
|
|
GETINUM(1,inum);
|
|
ginode(inum, &ip);
|
|
clearinode(ip.i_dp);
|
|
inodirty(&ip);
|
|
irelse(&ip);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(active)
|
|
{
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(blocks)
|
|
{
|
|
printactive(1);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(quit)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
CMDFUNCSTART(uplink)
|
|
{
|
|
if (!checkactive())
|
|
return 1;
|
|
DIP_SET(curinode, di_nlink, DIP(curinode, di_nlink) + 1);
|
|
printf("inode %ju link count now %d\n",
|
|
(uintmax_t)curinum, DIP(curinode, di_nlink));
|
|
inodirty(&curip);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(downlink)
|
|
{
|
|
if (!checkactive())
|
|
return 1;
|
|
DIP_SET(curinode, di_nlink, DIP(curinode, di_nlink) - 1);
|
|
printf("inode %ju link count now %d\n",
|
|
(uintmax_t)curinum, DIP(curinode, di_nlink));
|
|
inodirty(&curip);
|
|
return 0;
|
|
}
|
|
|
|
const char *typename[] = {
|
|
"unknown",
|
|
"fifo",
|
|
"char special",
|
|
"unregistered #3",
|
|
"directory",
|
|
"unregistered #5",
|
|
"blk special",
|
|
"unregistered #7",
|
|
"regular",
|
|
"unregistered #9",
|
|
"symlink",
|
|
"unregistered #11",
|
|
"socket",
|
|
"unregistered #13",
|
|
"whiteout",
|
|
};
|
|
|
|
int diroff;
|
|
int slot;
|
|
|
|
int
|
|
scannames(struct inodesc *idesc)
|
|
{
|
|
struct direct *dirp = idesc->id_dirp;
|
|
|
|
printf("slot %d off %d ino %d reclen %d: %s, `%.*s'\n",
|
|
slot++, diroff, dirp->d_ino, dirp->d_reclen,
|
|
typename[dirp->d_type], dirp->d_namlen, dirp->d_name);
|
|
diroff += dirp->d_reclen;
|
|
return (KEEPON);
|
|
}
|
|
|
|
CMDFUNCSTART(ls)
|
|
{
|
|
struct inodesc idesc;
|
|
checkactivedir(); /* let it go on anyway */
|
|
|
|
slot = 0;
|
|
diroff = 0;
|
|
idesc.id_number = curinum;
|
|
idesc.id_func = scannames;
|
|
idesc.id_type = DATA;
|
|
idesc.id_fix = IGNORE;
|
|
ckinode(curinode, &idesc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int findblk_numtofind;
|
|
static int wantedblksize;
|
|
|
|
CMDFUNCSTART(findblk)
|
|
{
|
|
ino_t inum, inosused;
|
|
uint32_t *wantedblk32;
|
|
uint64_t *wantedblk64;
|
|
struct bufarea *cgbp;
|
|
struct cg *cgp;
|
|
int c, i, is_ufs2;
|
|
|
|
wantedblksize = (argc - 1);
|
|
is_ufs2 = sblock.fs_magic == FS_UFS2_MAGIC;
|
|
ocurrent = curinum;
|
|
|
|
if (is_ufs2) {
|
|
wantedblk64 = calloc(wantedblksize, sizeof(uint64_t));
|
|
if (wantedblk64 == NULL)
|
|
err(1, "malloc");
|
|
for (i = 1; i < argc; i++)
|
|
wantedblk64[i - 1] = dbtofsb(&sblock, strtoull(argv[i], NULL, 0));
|
|
} else {
|
|
wantedblk32 = calloc(wantedblksize, sizeof(uint32_t));
|
|
if (wantedblk32 == NULL)
|
|
err(1, "malloc");
|
|
for (i = 1; i < argc; i++)
|
|
wantedblk32[i - 1] = dbtofsb(&sblock, strtoull(argv[i], NULL, 0));
|
|
}
|
|
findblk_numtofind = wantedblksize;
|
|
/*
|
|
* sblock.fs_ncg holds a number of cylinder groups.
|
|
* Iterate over all cylinder groups.
|
|
*/
|
|
for (c = 0; c < sblock.fs_ncg; c++) {
|
|
/*
|
|
* sblock.fs_ipg holds a number of inodes per cylinder group.
|
|
* Calculate a highest inode number for a given cylinder group.
|
|
*/
|
|
inum = c * sblock.fs_ipg;
|
|
/* Read cylinder group. */
|
|
cgbp = cglookup(c);
|
|
cgp = cgbp->b_un.b_cg;
|
|
/*
|
|
* Get a highest used inode number for a given cylinder group.
|
|
* For UFS1 all inodes initialized at the newfs stage.
|
|
*/
|
|
if (is_ufs2)
|
|
inosused = cgp->cg_initediblk;
|
|
else
|
|
inosused = sblock.fs_ipg;
|
|
|
|
for (; inosused > 0; inum++, inosused--) {
|
|
/* Skip magic inodes: 0, UFS_WINO, UFS_ROOTINO. */
|
|
if (inum < UFS_ROOTINO)
|
|
continue;
|
|
/*
|
|
* Check if the block we are looking for is just an inode block.
|
|
*
|
|
* ino_to_fsba() - get block containing inode from its number.
|
|
* INOPB() - get a number of inodes in one disk block.
|
|
*/
|
|
if (is_ufs2 ?
|
|
compare_blk64(wantedblk64, ino_to_fsba(&sblock, inum)) :
|
|
compare_blk32(wantedblk32, ino_to_fsba(&sblock, inum))) {
|
|
printf("block %llu: inode block (%ju-%ju)\n",
|
|
(unsigned long long)fsbtodb(&sblock,
|
|
ino_to_fsba(&sblock, inum)),
|
|
(uintmax_t)(inum / INOPB(&sblock)) * INOPB(&sblock),
|
|
(uintmax_t)(inum / INOPB(&sblock) + 1) * INOPB(&sblock));
|
|
findblk_numtofind--;
|
|
if (findblk_numtofind == 0)
|
|
goto end;
|
|
}
|
|
/* Get on-disk inode aka dinode. */
|
|
setcurinode(inum);
|
|
/* Find IFLNK dinode with allocated data blocks. */
|
|
switch (DIP(curinode, di_mode) & IFMT) {
|
|
case IFDIR:
|
|
case IFREG:
|
|
if (DIP(curinode, di_blocks) == 0)
|
|
continue;
|
|
break;
|
|
case IFLNK:
|
|
{
|
|
uint64_t size = DIP(curinode, di_size);
|
|
if (size > 0 && size < sblock.fs_maxsymlinklen &&
|
|
DIP(curinode, di_blocks) == 0)
|
|
continue;
|
|
else
|
|
break;
|
|
}
|
|
default:
|
|
continue;
|
|
}
|
|
/* Look through direct data blocks. */
|
|
if (is_ufs2 ?
|
|
find_blks64(curinode->dp2.di_db, UFS_NDADDR, wantedblk64) :
|
|
find_blks32(curinode->dp1.di_db, UFS_NDADDR, wantedblk32))
|
|
goto end;
|
|
for (i = 0; i < UFS_NIADDR; i++) {
|
|
/*
|
|
* Does the block we are looking for belongs to the
|
|
* indirect blocks?
|
|
*/
|
|
if (is_ufs2 ?
|
|
compare_blk64(wantedblk64, curinode->dp2.di_ib[i]) :
|
|
compare_blk32(wantedblk32, curinode->dp1.di_ib[i]))
|
|
if (founddatablk(is_ufs2 ? curinode->dp2.di_ib[i] :
|
|
curinode->dp1.di_ib[i]))
|
|
goto end;
|
|
/*
|
|
* Search through indirect, double and triple indirect
|
|
* data blocks.
|
|
*/
|
|
if (is_ufs2 ? (curinode->dp2.di_ib[i] != 0) :
|
|
(curinode->dp1.di_ib[i] != 0))
|
|
if (is_ufs2 ?
|
|
find_indirblks64(curinode->dp2.di_ib[i], i,
|
|
wantedblk64) :
|
|
find_indirblks32(curinode->dp1.di_ib[i], i,
|
|
wantedblk32))
|
|
goto end;
|
|
}
|
|
}
|
|
}
|
|
end:
|
|
setcurinode(ocurrent);
|
|
if (is_ufs2)
|
|
free(wantedblk64);
|
|
else
|
|
free(wantedblk32);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
compare_blk32(uint32_t *wantedblk, uint32_t curblk)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < wantedblksize; i++) {
|
|
if (wantedblk[i] != 0 && wantedblk[i] == curblk) {
|
|
wantedblk[i] = 0;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
compare_blk64(uint64_t *wantedblk, uint64_t curblk)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < wantedblksize; i++) {
|
|
if (wantedblk[i] != 0 && wantedblk[i] == curblk) {
|
|
wantedblk[i] = 0;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
founddatablk(uint64_t blk)
|
|
{
|
|
|
|
printf("%llu: data block of inode %ju\n",
|
|
(unsigned long long)fsbtodb(&sblock, blk), (uintmax_t)curinum);
|
|
findblk_numtofind--;
|
|
if (findblk_numtofind == 0)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
find_blks32(uint32_t *buf, int size, uint32_t *wantedblk)
|
|
{
|
|
int blk;
|
|
for (blk = 0; blk < size; blk++) {
|
|
if (buf[blk] == 0)
|
|
continue;
|
|
if (compare_blk32(wantedblk, buf[blk])) {
|
|
if (founddatablk(buf[blk]))
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
find_indirblks32(uint32_t blk, int ind_level, uint32_t *wantedblk)
|
|
{
|
|
#define MAXNINDIR (MAXBSIZE / sizeof(uint32_t))
|
|
uint32_t idblk[MAXNINDIR];
|
|
int i;
|
|
|
|
blread(fsreadfd, (char *)idblk, fsbtodb(&sblock, blk), (int)sblock.fs_bsize);
|
|
if (ind_level <= 0) {
|
|
if (find_blks32(idblk, sblock.fs_bsize / sizeof(uint32_t), wantedblk))
|
|
return 1;
|
|
} else {
|
|
ind_level--;
|
|
for (i = 0; i < sblock.fs_bsize / sizeof(uint32_t); i++) {
|
|
if (compare_blk32(wantedblk, idblk[i])) {
|
|
if (founddatablk(idblk[i]))
|
|
return 1;
|
|
}
|
|
if (idblk[i] != 0)
|
|
if (find_indirblks32(idblk[i], ind_level, wantedblk))
|
|
return 1;
|
|
}
|
|
}
|
|
#undef MAXNINDIR
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
find_blks64(uint64_t *buf, int size, uint64_t *wantedblk)
|
|
{
|
|
int blk;
|
|
for (blk = 0; blk < size; blk++) {
|
|
if (buf[blk] == 0)
|
|
continue;
|
|
if (compare_blk64(wantedblk, buf[blk])) {
|
|
if (founddatablk(buf[blk]))
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
find_indirblks64(uint64_t blk, int ind_level, uint64_t *wantedblk)
|
|
{
|
|
#define MAXNINDIR (MAXBSIZE / sizeof(uint64_t))
|
|
uint64_t idblk[MAXNINDIR];
|
|
int i;
|
|
|
|
blread(fsreadfd, (char *)idblk, fsbtodb(&sblock, blk), (int)sblock.fs_bsize);
|
|
if (ind_level <= 0) {
|
|
if (find_blks64(idblk, sblock.fs_bsize / sizeof(uint64_t), wantedblk))
|
|
return 1;
|
|
} else {
|
|
ind_level--;
|
|
for (i = 0; i < sblock.fs_bsize / sizeof(uint64_t); i++) {
|
|
if (compare_blk64(wantedblk, idblk[i])) {
|
|
if (founddatablk(idblk[i]))
|
|
return 1;
|
|
}
|
|
if (idblk[i] != 0)
|
|
if (find_indirblks64(idblk[i], ind_level, wantedblk))
|
|
return 1;
|
|
}
|
|
}
|
|
#undef MAXNINDIR
|
|
return 0;
|
|
}
|
|
|
|
int findino(struct inodesc *idesc); /* from fsck */
|
|
static int dolookup(char *name);
|
|
|
|
static int
|
|
dolookup(char *name)
|
|
{
|
|
struct inodesc idesc;
|
|
|
|
if (!checkactivedir())
|
|
return 0;
|
|
idesc.id_number = curinum;
|
|
idesc.id_func = findino;
|
|
idesc.id_name = name;
|
|
idesc.id_type = DATA;
|
|
idesc.id_fix = IGNORE;
|
|
if (ckinode(curinode, &idesc) & FOUND) {
|
|
setcurinode(idesc.id_parent);
|
|
printactive(0);
|
|
return 1;
|
|
} else {
|
|
warnx("name `%s' not found in current inode directory", name);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
CMDFUNCSTART(focusname)
|
|
{
|
|
char *p, *val;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
ocurrent = curinum;
|
|
|
|
if (argv[1][0] == '/') {
|
|
setcurinode(UFS_ROOTINO);
|
|
} else {
|
|
if (!checkactivedir())
|
|
return 1;
|
|
}
|
|
for (p = argv[1]; p != NULL;) {
|
|
while ((val = strsep(&p, "/")) != NULL && *val == '\0');
|
|
if (val) {
|
|
printf("component `%s': ", val);
|
|
fflush(stdout);
|
|
if (!dolookup(val)) {
|
|
return(1);
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(ln)
|
|
{
|
|
ino_t inum;
|
|
int rval;
|
|
char *cp;
|
|
|
|
GETINUM(1,inum);
|
|
|
|
if (!checkactivedir())
|
|
return 1;
|
|
rval = makeentry(curinum, inum, argv[2]);
|
|
if (rval)
|
|
printf("Ino %ju entered as `%s'\n", (uintmax_t)inum, argv[2]);
|
|
else
|
|
printf("could not enter name? weird.\n");
|
|
return rval;
|
|
}
|
|
|
|
CMDFUNCSTART(rm)
|
|
{
|
|
int rval;
|
|
|
|
if (!checkactivedir())
|
|
return 1;
|
|
rval = changeino(curinum, argv[1], 0);
|
|
if (rval & ALTERED) {
|
|
printf("Name `%s' removed\n", argv[1]);
|
|
return 0;
|
|
} else {
|
|
printf("could not remove name ('%s')? weird.\n", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
long slotcount, desired;
|
|
|
|
int
|
|
chinumfunc(struct inodesc *idesc)
|
|
{
|
|
struct direct *dirp = idesc->id_dirp;
|
|
|
|
if (slotcount++ == desired) {
|
|
dirp->d_ino = idesc->id_parent;
|
|
return STOP|ALTERED|FOUND;
|
|
}
|
|
return KEEPON;
|
|
}
|
|
|
|
CMDFUNCSTART(chinum)
|
|
{
|
|
char *cp;
|
|
ino_t inum;
|
|
struct inodesc idesc;
|
|
|
|
slotcount = 0;
|
|
if (!checkactivedir())
|
|
return 1;
|
|
GETINUM(2,inum);
|
|
|
|
desired = strtol(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' || desired < 0) {
|
|
printf("invalid slot number `%s'\n", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
idesc.id_number = curinum;
|
|
idesc.id_func = chinumfunc;
|
|
idesc.id_fix = IGNORE;
|
|
idesc.id_type = DATA;
|
|
idesc.id_parent = inum; /* XXX convenient hiding place */
|
|
|
|
if (ckinode(curinode, &idesc) & FOUND)
|
|
return 0;
|
|
else {
|
|
warnx("no %sth slot in current directory", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
int
|
|
chnamefunc(struct inodesc *idesc)
|
|
{
|
|
struct direct *dirp = idesc->id_dirp;
|
|
struct direct testdir;
|
|
|
|
if (slotcount++ == desired) {
|
|
/* will name fit? */
|
|
testdir.d_namlen = strlen(idesc->id_name);
|
|
if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) {
|
|
dirp->d_namlen = testdir.d_namlen;
|
|
strcpy(dirp->d_name, idesc->id_name);
|
|
return STOP|ALTERED|FOUND;
|
|
} else
|
|
return STOP|FOUND; /* won't fit, so give up */
|
|
}
|
|
return KEEPON;
|
|
}
|
|
|
|
CMDFUNCSTART(chname)
|
|
{
|
|
int rval;
|
|
char *cp;
|
|
struct inodesc idesc;
|
|
|
|
slotcount = 0;
|
|
if (!checkactivedir())
|
|
return 1;
|
|
|
|
desired = strtoul(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0') {
|
|
printf("invalid slot number `%s'\n", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
idesc.id_number = curinum;
|
|
idesc.id_func = chnamefunc;
|
|
idesc.id_fix = IGNORE;
|
|
idesc.id_type = DATA;
|
|
idesc.id_name = argv[2];
|
|
|
|
rval = ckinode(curinode, &idesc);
|
|
if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED))
|
|
return 0;
|
|
else if (rval & FOUND) {
|
|
warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]);
|
|
return 1;
|
|
} else {
|
|
warnx("no %sth slot in current directory", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
struct typemap {
|
|
const char *typename;
|
|
int typebits;
|
|
} typenamemap[] = {
|
|
{"file", IFREG},
|
|
{"dir", IFDIR},
|
|
{"socket", IFSOCK},
|
|
{"fifo", IFIFO},
|
|
};
|
|
|
|
CMDFUNCSTART(newtype)
|
|
{
|
|
int type;
|
|
struct typemap *tp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
type = DIP(curinode, di_mode) & IFMT;
|
|
for (tp = typenamemap;
|
|
tp < &typenamemap[nitems(typenamemap)];
|
|
tp++) {
|
|
if (!strcmp(argv[1], tp->typename)) {
|
|
printf("setting type to %s\n", tp->typename);
|
|
type = tp->typebits;
|
|
break;
|
|
}
|
|
}
|
|
if (tp == &typenamemap[nitems(typenamemap)]) {
|
|
warnx("type `%s' not known", argv[1]);
|
|
warnx("try one of `file', `dir', `socket', `fifo'");
|
|
return 1;
|
|
}
|
|
DIP_SET(curinode, di_mode, DIP(curinode, di_mode) & ~IFMT);
|
|
DIP_SET(curinode, di_mode, DIP(curinode, di_mode) | type);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chlen)
|
|
{
|
|
int rval = 1;
|
|
long len;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
len = strtol(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' || len < 0) {
|
|
warnx("bad length `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
DIP_SET(curinode, di_size, len);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return rval;
|
|
}
|
|
|
|
CMDFUNCSTART(chmode)
|
|
{
|
|
int rval = 1;
|
|
long modebits;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
modebits = strtol(argv[1], &cp, 8);
|
|
if (cp == argv[1] || *cp != '\0' || (modebits & ~07777)) {
|
|
warnx("bad modebits `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
DIP_SET(curinode, di_mode, DIP(curinode, di_mode) & ~07777);
|
|
DIP_SET(curinode, di_mode, DIP(curinode, di_mode) | modebits);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return rval;
|
|
}
|
|
|
|
CMDFUNCSTART(chaflags)
|
|
{
|
|
int rval = 1;
|
|
u_long flags;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
flags = strtoul(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' ) {
|
|
warnx("bad flags `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
if (flags > UINT_MAX) {
|
|
warnx("flags set beyond 32-bit range of field (%lx)\n", flags);
|
|
return(1);
|
|
}
|
|
DIP_SET(curinode, di_flags, flags);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return rval;
|
|
}
|
|
|
|
CMDFUNCSTART(chgen)
|
|
{
|
|
int rval = 1;
|
|
long gen;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
gen = strtol(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' ) {
|
|
warnx("bad gen `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
if (gen > INT_MAX || gen < INT_MIN) {
|
|
warnx("gen set beyond 32-bit range of field (%lx)\n", gen);
|
|
return(1);
|
|
}
|
|
DIP_SET(curinode, di_gen, gen);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return rval;
|
|
}
|
|
|
|
CMDFUNCSTART(chsize)
|
|
{
|
|
int rval = 1;
|
|
off_t size;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
size = strtoll(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0') {
|
|
warnx("bad size `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
if (size < 0) {
|
|
warnx("size set to negative (%jd)\n", (intmax_t)size);
|
|
return(1);
|
|
}
|
|
DIP_SET(curinode, di_size, size);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return rval;
|
|
}
|
|
|
|
CMDFUNCSTART(linkcount)
|
|
{
|
|
int rval = 1;
|
|
int lcnt;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
lcnt = strtol(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' ) {
|
|
warnx("bad link count `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
if (lcnt > USHRT_MAX || lcnt < 0) {
|
|
warnx("max link count is %d\n", USHRT_MAX);
|
|
return 1;
|
|
}
|
|
|
|
DIP_SET(curinode, di_nlink, lcnt);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return rval;
|
|
}
|
|
|
|
CMDFUNCSTART(chowner)
|
|
{
|
|
int rval = 1;
|
|
unsigned long uid;
|
|
char *cp;
|
|
struct passwd *pwd;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
uid = strtoul(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' ) {
|
|
/* try looking up name */
|
|
if ((pwd = getpwnam(argv[1]))) {
|
|
uid = pwd->pw_uid;
|
|
} else {
|
|
warnx("bad uid `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
DIP_SET(curinode, di_uid, uid);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return rval;
|
|
}
|
|
|
|
CMDFUNCSTART(chgroup)
|
|
{
|
|
int rval = 1;
|
|
unsigned long gid;
|
|
char *cp;
|
|
struct group *grp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
gid = strtoul(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' ) {
|
|
if ((grp = getgrnam(argv[1]))) {
|
|
gid = grp->gr_gid;
|
|
} else {
|
|
warnx("bad gid `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
DIP_SET(curinode, di_gid, gid);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return rval;
|
|
}
|
|
|
|
int
|
|
dotime(char *name, time_t *secp, int32_t *nsecp)
|
|
{
|
|
char *p, *val;
|
|
struct tm t;
|
|
int32_t nsec;
|
|
p = strchr(name, '.');
|
|
if (p) {
|
|
*p = '\0';
|
|
nsec = strtoul(++p, &val, 0);
|
|
if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) {
|
|
warnx("invalid nanoseconds");
|
|
goto badformat;
|
|
}
|
|
} else
|
|
nsec = 0;
|
|
if (strlen(name) != 14) {
|
|
badformat:
|
|
warnx("date format: YYYYMMDDHHMMSS[.nsec]");
|
|
return 1;
|
|
}
|
|
*nsecp = nsec;
|
|
|
|
for (p = name; *p; p++)
|
|
if (*p < '0' || *p > '9')
|
|
goto badformat;
|
|
|
|
p = name;
|
|
#define VAL() ((*p++) - '0')
|
|
t.tm_year = VAL();
|
|
t.tm_year = VAL() + t.tm_year * 10;
|
|
t.tm_year = VAL() + t.tm_year * 10;
|
|
t.tm_year = VAL() + t.tm_year * 10 - 1900;
|
|
t.tm_mon = VAL();
|
|
t.tm_mon = VAL() + t.tm_mon * 10 - 1;
|
|
t.tm_mday = VAL();
|
|
t.tm_mday = VAL() + t.tm_mday * 10;
|
|
t.tm_hour = VAL();
|
|
t.tm_hour = VAL() + t.tm_hour * 10;
|
|
t.tm_min = VAL();
|
|
t.tm_min = VAL() + t.tm_min * 10;
|
|
t.tm_sec = VAL();
|
|
t.tm_sec = VAL() + t.tm_sec * 10;
|
|
t.tm_isdst = -1;
|
|
|
|
*secp = mktime(&t);
|
|
if (*secp == -1) {
|
|
warnx("date/time out of range");
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chbtime)
|
|
{
|
|
time_t secs;
|
|
int32_t nsecs;
|
|
|
|
if (dotime(argv[1], &secs, &nsecs))
|
|
return 1;
|
|
if (sblock.fs_magic == FS_UFS1_MAGIC)
|
|
return 1;
|
|
curinode->dp2.di_birthtime = _time_to_time64(secs);
|
|
curinode->dp2.di_birthnsec = nsecs;
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chmtime)
|
|
{
|
|
time_t secs;
|
|
int32_t nsecs;
|
|
|
|
if (dotime(argv[1], &secs, &nsecs))
|
|
return 1;
|
|
if (sblock.fs_magic == FS_UFS1_MAGIC)
|
|
curinode->dp1.di_mtime = _time_to_time32(secs);
|
|
else
|
|
curinode->dp2.di_mtime = _time_to_time64(secs);
|
|
DIP_SET(curinode, di_mtimensec, nsecs);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chatime)
|
|
{
|
|
time_t secs;
|
|
int32_t nsecs;
|
|
|
|
if (dotime(argv[1], &secs, &nsecs))
|
|
return 1;
|
|
if (sblock.fs_magic == FS_UFS1_MAGIC)
|
|
curinode->dp1.di_atime = _time_to_time32(secs);
|
|
else
|
|
curinode->dp2.di_atime = _time_to_time64(secs);
|
|
DIP_SET(curinode, di_atimensec, nsecs);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chctime)
|
|
{
|
|
time_t secs;
|
|
int32_t nsecs;
|
|
|
|
if (dotime(argv[1], &secs, &nsecs))
|
|
return 1;
|
|
if (sblock.fs_magic == FS_UFS1_MAGIC)
|
|
curinode->dp1.di_ctime = _time_to_time32(secs);
|
|
else
|
|
curinode->dp2.di_ctime = _time_to_time64(secs);
|
|
DIP_SET(curinode, di_ctimensec, nsecs);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|