541 lines
14 KiB
C
541 lines
14 KiB
C
/* $NetBSD: pass2.c,v 1.27 1999/11/17 00:29:54 mrg Exp $ */
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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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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)pass2.c 8.9 (Berkeley) 4/28/95";
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#else
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__RCSID("$NetBSD: pass2.c,v 1.27 1999/11/17 00:29:54 mrg Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/time.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 <err.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 "fsck.h"
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#include "fsutil.h"
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#include "extern.h"
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#define MINDIRSIZE (sizeof (struct dirtemplate))
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static int blksort __P((const void *, const void *));
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static int pass2check __P((struct inodesc *));
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void
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pass2()
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{
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struct dinode *dp;
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struct inoinfo **inpp, *inp;
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struct inoinfo **inpend;
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struct inodesc curino;
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struct dinode dino;
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char pathbuf[MAXPATHLEN + 1];
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switch (statemap[ROOTINO]) {
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case USTATE:
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pfatal("ROOT INODE UNALLOCATED");
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if (reply("ALLOCATE") == 0) {
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markclean = 0;
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ckfini();
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exit(EEXIT);
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}
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if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
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errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
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break;
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case DCLEAR:
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pfatal("DUPS/BAD IN ROOT INODE");
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if (reply("REALLOCATE")) {
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freeino(ROOTINO);
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if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
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errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
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break;
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}
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markclean = 0;
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if (reply("CONTINUE") == 0) {
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ckfini();
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exit(EEXIT);
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}
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break;
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case FSTATE:
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case FCLEAR:
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pfatal("ROOT INODE NOT DIRECTORY");
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if (reply("REALLOCATE")) {
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freeino(ROOTINO);
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if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
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errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
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break;
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}
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if (reply("FIX") == 0) {
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markclean = 0;
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ckfini();
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exit(EEXIT);
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}
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dp = ginode(ROOTINO);
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dp->di_mode = iswap16((iswap16(dp->di_mode) & ~IFMT) | IFDIR);
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inodirty();
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break;
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case DSTATE:
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break;
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default:
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errx(EEXIT, "BAD STATE %d FOR ROOT INODE", statemap[ROOTINO]);
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}
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if (newinofmt) {
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statemap[WINO] = FSTATE;
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typemap[WINO] = DT_WHT;
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}
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/*
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* Sort the directory list into disk block order.
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*/
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qsort((char *)inpsort, (size_t)inplast, sizeof *inpsort, blksort);
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/*
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* Check the integrity of each directory.
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*/
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memset(&curino, 0, sizeof(struct inodesc));
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curino.id_type = DATA;
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curino.id_func = pass2check;
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inpend = &inpsort[inplast];
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for (inpp = inpsort; inpp < inpend; inpp++) {
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inp = *inpp;
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if (inp->i_isize == 0)
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continue;
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if (inp->i_isize < MINDIRSIZE) {
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direrror(inp->i_number, "DIRECTORY TOO SHORT");
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inp->i_isize = roundup(MINDIRSIZE, DIRBLKSIZ);
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if (reply("FIX") == 1) {
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dp = ginode(inp->i_number);
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dp->di_size = iswap64(inp->i_isize);
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inodirty();
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} else
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markclean = 0;
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} else if ((inp->i_isize & (DIRBLKSIZ - 1)) != 0) {
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getpathname(pathbuf, inp->i_number, inp->i_number);
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if (usedsoftdep)
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pfatal("%s %s: LENGTH %qd NOT MULTIPLE OF %d",
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"DIRECTORY", pathbuf,
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(long long)inp->i_isize, DIRBLKSIZ);
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else
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pwarn("%s %s: LENGTH %qd NOT MULTIPLE OF %d",
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"DIRECTORY", pathbuf,
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(long long)inp->i_isize, DIRBLKSIZ);
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if (preen)
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printf(" (ADJUSTED)\n");
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inp->i_isize = roundup(inp->i_isize, DIRBLKSIZ);
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if (preen || reply("ADJUST") == 1) {
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dp = ginode(inp->i_number);
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dp->di_size = iswap64(inp->i_isize);
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inodirty();
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} else
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markclean = 0;
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}
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memset(&dino, 0, DINODE_SIZE);
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dino.di_mode = iswap16(IFDIR);
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dino.di_size = iswap64(inp->i_isize);
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memmove(&dino.di_db[0], &inp->i_blks[0], (size_t)inp->i_numblks);
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curino.id_number = inp->i_number;
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curino.id_parent = inp->i_parent;
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(void)ckinode(&dino, &curino);
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}
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/* byte swapping in direcoties entries, if needed, have been done.
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* Now rescan dirs for pass2check()
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*/
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if (do_dirswap) {
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do_dirswap = 0;
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for (inpp = inpsort; inpp < inpend; inpp++) {
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inp = *inpp;
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if (inp->i_isize == 0)
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continue;
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memset(&dino, 0, DINODE_SIZE);
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dino.di_mode = iswap16(IFDIR);
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dino.di_size = iswap64(inp->i_isize);
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memmove(&dino.di_db[0], &inp->i_blks[0], (size_t)inp->i_numblks);
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curino.id_number = inp->i_number;
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curino.id_parent = inp->i_parent;
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(void)ckinode(&dino, &curino);
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}
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}
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/*
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* Now that the parents of all directories have been found,
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* make another pass to verify the value of `..'
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*/
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for (inpp = inpsort; inpp < inpend; inpp++) {
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inp = *inpp;
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if (inp->i_parent == 0 || inp->i_isize == 0)
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continue;
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if (inp->i_dotdot == inp->i_parent ||
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inp->i_dotdot == (ino_t)-1)
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continue;
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if (inp->i_dotdot == 0) {
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inp->i_dotdot = inp->i_parent;
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fileerror(inp->i_parent, inp->i_number, "MISSING '..'");
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if (reply("FIX") == 0) {
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markclean = 0;
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continue;
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}
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(void)makeentry(inp->i_number, inp->i_parent, "..");
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lncntp[inp->i_parent]--;
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continue;
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}
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fileerror(inp->i_parent, inp->i_number,
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"BAD INODE NUMBER FOR '..'");
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if (reply("FIX") == 0) {
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markclean = 0;
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continue;
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}
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lncntp[inp->i_dotdot]++;
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lncntp[inp->i_parent]--;
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inp->i_dotdot = inp->i_parent;
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(void)changeino(inp->i_number, "..", inp->i_parent);
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}
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/*
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* Mark all the directories that can be found from the root.
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*/
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propagate();
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}
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static int
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pass2check(idesc)
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struct inodesc *idesc;
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{
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struct direct *dirp = idesc->id_dirp;
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struct inoinfo *inp;
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int n, entrysize, ret = 0;
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struct dinode *dp;
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char *errmsg;
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struct direct proto;
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char namebuf[MAXPATHLEN + 1];
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char pathbuf[MAXPATHLEN + 1];
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/*
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* If converting, set directory entry type.
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*/
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if (doinglevel2 && iswap32(dirp->d_ino) > 0 && iswap32(dirp->d_ino) < maxino) {
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dirp->d_type = typemap[iswap32(dirp->d_ino)];
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ret |= ALTERED;
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}
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/*
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* check for "."
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*/
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if (idesc->id_entryno != 0)
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goto chk1;
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if (dirp->d_ino != 0 && strcmp(dirp->d_name, ".") == 0) {
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if (iswap32(dirp->d_ino) != idesc->id_number) {
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direrror(idesc->id_number, "BAD INODE NUMBER FOR '.'");
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dirp->d_ino = iswap32(idesc->id_number);
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if (reply("FIX") == 1)
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ret |= ALTERED;
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else
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markclean = 0;
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}
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if (newinofmt && dirp->d_type != DT_DIR) {
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direrror(idesc->id_number, "BAD TYPE VALUE FOR '.'");
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dirp->d_type = DT_DIR;
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if (reply("FIX") == 1)
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ret |= ALTERED;
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else
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markclean = 0;
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}
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goto chk1;
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}
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direrror(idesc->id_number, "MISSING '.'");
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proto.d_ino = iswap32(idesc->id_number);
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if (newinofmt)
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proto.d_type = DT_DIR;
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else
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proto.d_type = 0;
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proto.d_namlen = 1;
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(void)strcpy(proto.d_name, ".");
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# if BYTE_ORDER == LITTLE_ENDIAN
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if (!newinofmt && !needswap) {
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# else
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if (!newinofmt && needswap) {
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# endif
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u_char tmp;
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tmp = proto.d_type;
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proto.d_type = proto.d_namlen;
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proto.d_namlen = tmp;
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}
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entrysize = DIRSIZ(0, &proto, 0);
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if (dirp->d_ino != 0 && strcmp(dirp->d_name, "..") != 0) {
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pfatal("CANNOT FIX, FIRST ENTRY IN DIRECTORY CONTAINS %s\n",
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dirp->d_name);
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markclean = 0;
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} else if (iswap16(dirp->d_reclen) < entrysize) {
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pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '.'\n");
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markclean = 0;
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} else if (iswap16(dirp->d_reclen) < 2 * entrysize) {
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proto.d_reclen = dirp->d_reclen;
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memmove(dirp, &proto, (size_t)entrysize);
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if (reply("FIX") == 1)
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ret |= ALTERED;
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else
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markclean = 0;
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} else {
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n = iswap16(dirp->d_reclen) - entrysize;
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proto.d_reclen = iswap16(entrysize);
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memmove(dirp, &proto, (size_t)entrysize);
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idesc->id_entryno++;
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lncntp[iswap32(dirp->d_ino)]--;
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dirp = (struct direct *)((char *)(dirp) + entrysize);
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memset(dirp, 0, (size_t)n);
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dirp->d_reclen = iswap16(n);
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if (reply("FIX") == 1)
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ret |= ALTERED;
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else
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markclean = 0;
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}
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chk1:
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if (idesc->id_entryno > 1)
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goto chk2;
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inp = getinoinfo(idesc->id_number);
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proto.d_ino = iswap32(inp->i_parent);
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if (newinofmt)
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proto.d_type = DT_DIR;
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else
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proto.d_type = 0;
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proto.d_namlen = 2;
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(void)strcpy(proto.d_name, "..");
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# if BYTE_ORDER == LITTLE_ENDIAN
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if (!newinofmt && !needswap) {
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# else
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if (!newinofmt && needswap) {
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# endif
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u_char tmp;
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tmp = proto.d_type;
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proto.d_type = proto.d_namlen;
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proto.d_namlen = tmp;
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}
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entrysize = DIRSIZ(0, &proto, 0);
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if (idesc->id_entryno == 0) {
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n = DIRSIZ(0, dirp, 0);
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if (iswap16(dirp->d_reclen) < n + entrysize)
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goto chk2;
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proto.d_reclen = iswap16(iswap16(dirp->d_reclen) - n);
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dirp->d_reclen = iswap16(n);
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idesc->id_entryno++;
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lncntp[iswap32(dirp->d_ino)]--;
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dirp = (struct direct *)((char *)(dirp) + n);
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memset(dirp, 0, (size_t)iswap16(proto.d_reclen));
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dirp->d_reclen = proto.d_reclen;
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}
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if (dirp->d_ino != 0 && strcmp(dirp->d_name, "..") == 0) {
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inp->i_dotdot = iswap32(dirp->d_ino);
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if (newinofmt && dirp->d_type != DT_DIR) {
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direrror(idesc->id_number, "BAD TYPE VALUE FOR '..'");
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dirp->d_type = DT_DIR;
|
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if (reply("FIX") == 1)
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ret |= ALTERED;
|
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else
|
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markclean = 0;
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}
|
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goto chk2;
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}
|
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if (iswap32(dirp->d_ino) != 0 && strcmp(dirp->d_name, ".") != 0) {
|
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fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
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pfatal("CANNOT FIX, SECOND ENTRY IN DIRECTORY CONTAINS %s\n",
|
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dirp->d_name);
|
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inp->i_dotdot = (ino_t)-1;
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markclean = 0;
|
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} else if (iswap16(dirp->d_reclen) < entrysize) {
|
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fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
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pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '..'\n");
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inp->i_dotdot = (ino_t)-1;
|
|
markclean = 0;
|
|
} else if (inp->i_parent != 0) {
|
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/*
|
|
* We know the parent, so fix now.
|
|
*/
|
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inp->i_dotdot = inp->i_parent;
|
|
fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
|
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proto.d_reclen = dirp->d_reclen;
|
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memmove(dirp, &proto, (size_t)entrysize);
|
|
if (reply("FIX") == 1)
|
|
ret |= ALTERED;
|
|
else
|
|
markclean = 0;
|
|
}
|
|
idesc->id_entryno++;
|
|
if (dirp->d_ino != 0)
|
|
lncntp[iswap32(dirp->d_ino)]--;
|
|
return (ret|KEEPON);
|
|
chk2:
|
|
if (dirp->d_ino == 0)
|
|
return (ret|KEEPON);
|
|
if (dirp->d_namlen <= 2 &&
|
|
dirp->d_name[0] == '.' &&
|
|
idesc->id_entryno >= 2) {
|
|
if (dirp->d_namlen == 1) {
|
|
direrror(idesc->id_number, "EXTRA '.' ENTRY");
|
|
dirp->d_ino = 0;
|
|
if (reply("FIX") == 1)
|
|
ret |= ALTERED;
|
|
else
|
|
markclean = 0;
|
|
return (KEEPON | ret);
|
|
}
|
|
if (dirp->d_name[1] == '.') {
|
|
direrror(idesc->id_number, "EXTRA '..' ENTRY");
|
|
dirp->d_ino = 0;
|
|
if (reply("FIX") == 1)
|
|
ret |= ALTERED;
|
|
else
|
|
markclean = 0;
|
|
return (KEEPON | ret);
|
|
}
|
|
}
|
|
idesc->id_entryno++;
|
|
n = 0;
|
|
if (iswap32(dirp->d_ino) > maxino) {
|
|
fileerror(idesc->id_number, dirp->d_ino, "I OUT OF RANGE");
|
|
n = reply("REMOVE");
|
|
if (n == 0)
|
|
markclean = 0;
|
|
} else if (newinofmt &&
|
|
((iswap32(dirp->d_ino) == WINO && dirp->d_type != DT_WHT) ||
|
|
(iswap32(dirp->d_ino) != WINO && dirp->d_type == DT_WHT))) {
|
|
fileerror(idesc->id_number, iswap32(dirp->d_ino), "BAD WHITEOUT ENTRY");
|
|
dirp->d_ino = iswap32(WINO);
|
|
dirp->d_type = DT_WHT;
|
|
if (reply("FIX") == 1)
|
|
ret |= ALTERED;
|
|
else
|
|
markclean = 0;
|
|
} else {
|
|
again:
|
|
switch (statemap[iswap32(dirp->d_ino)]) {
|
|
case USTATE:
|
|
if (idesc->id_entryno <= 2)
|
|
break;
|
|
fileerror(idesc->id_number, iswap32(dirp->d_ino), "UNALLOCATED");
|
|
n = reply("REMOVE");
|
|
if (n == 0)
|
|
markclean = 0;
|
|
break;
|
|
|
|
case DCLEAR:
|
|
case FCLEAR:
|
|
if (idesc->id_entryno <= 2)
|
|
break;
|
|
if (statemap[iswap32(dirp->d_ino)] == FCLEAR)
|
|
errmsg = "DUP/BAD";
|
|
else if (!preen && !usedsoftdep)
|
|
errmsg = "ZERO LENGTH DIRECTORY";
|
|
else {
|
|
n = 1;
|
|
break;
|
|
}
|
|
fileerror(idesc->id_number, iswap32(dirp->d_ino), errmsg);
|
|
if ((n = reply("REMOVE")) == 1)
|
|
break;
|
|
dp = ginode(iswap32(dirp->d_ino));
|
|
statemap[iswap32(dirp->d_ino)] =
|
|
(iswap16(dp->di_mode) & IFMT) == IFDIR ? DSTATE : FSTATE;
|
|
lncntp[iswap32(dirp->d_ino)] = iswap16(dp->di_nlink);
|
|
goto again;
|
|
|
|
case DSTATE:
|
|
case DFOUND:
|
|
inp = getinoinfo(iswap32(dirp->d_ino));
|
|
if (inp->i_parent != 0 && idesc->id_entryno > 2) {
|
|
getpathname(pathbuf, idesc->id_number,
|
|
idesc->id_number);
|
|
getpathname(namebuf, iswap32(dirp->d_ino),
|
|
iswap32(dirp->d_ino));
|
|
pwarn("%s %s %s\n", pathbuf,
|
|
"IS AN EXTRANEOUS HARD LINK TO DIRECTORY",
|
|
namebuf);
|
|
if (preen)
|
|
printf(" (IGNORED)\n");
|
|
else if ((n = reply("REMOVE")) == 1)
|
|
break;
|
|
}
|
|
if (idesc->id_entryno > 2)
|
|
inp->i_parent = idesc->id_number;
|
|
/* fall through */
|
|
|
|
case FSTATE:
|
|
if (newinofmt && dirp->d_type != typemap[iswap32(dirp->d_ino)]) {
|
|
fileerror(idesc->id_number, iswap32(dirp->d_ino),
|
|
"BAD TYPE VALUE");
|
|
dirp->d_type = typemap[iswap32(dirp->d_ino)];
|
|
if (reply("FIX") == 1)
|
|
ret |= ALTERED;
|
|
else
|
|
markclean = 0;
|
|
}
|
|
lncntp[iswap32(dirp->d_ino)]--;
|
|
break;
|
|
|
|
default:
|
|
errx(EEXIT, "BAD STATE %d FOR INODE I=%d",
|
|
statemap[iswap32(dirp->d_ino)], iswap32(dirp->d_ino));
|
|
}
|
|
}
|
|
if (n == 0)
|
|
return (ret|KEEPON);
|
|
dirp->d_ino = 0;
|
|
return (ret|KEEPON|ALTERED);
|
|
}
|
|
|
|
/*
|
|
* Routine to sort disk blocks.
|
|
*/
|
|
static int
|
|
blksort(arg1, arg2)
|
|
const void *arg1, *arg2;
|
|
{
|
|
|
|
return ((*(struct inoinfo **)arg1)->i_blks[0] -
|
|
(*(struct inoinfo **)arg2)->i_blks[0]);
|
|
}
|