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- /*
- * Copyright (c) 1980, 1986 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)pass1.c 5.16 (Berkeley) 3/19/91";
- #endif /* not lint */
-
- #include <sys/param.h>
- #include <ufs/dinode.h>
- #include <ufs/fs.h>
- #include <stdlib.h>
- #include <string.h>
- #include "fsck.h"
-
- static daddr_t badblk;
- static daddr_t dupblk;
- int pass1check();
- struct dinode *getnextinode();
-
- pass1()
- {
- register int c, i, j;
- register struct dinode *dp;
- struct zlncnt *zlnp;
- int ndb, cgd;
- struct inodesc idesc;
- ino_t inumber;
-
- /*
- * Set file system reserved blocks in used block map.
- */
- for (c = 0; c < sblock.fs_ncg; c++) {
- cgd = cgdmin(&sblock, c);
- if (c == 0) {
- i = cgbase(&sblock, c);
- cgd += howmany(sblock.fs_cssize, sblock.fs_fsize);
- } else
- i = cgsblock(&sblock, c);
- for (; i < cgd; i++)
- setbmap(i);
- }
- /*
- * Find all allocated blocks.
- */
- bzero((char *)&idesc, sizeof(struct inodesc));
- idesc.id_type = ADDR;
- idesc.id_func = pass1check;
- inumber = 0;
- n_files = n_blks = 0;
- resetinodebuf();
- for (c = 0; c < sblock.fs_ncg; c++) {
- for (i = 0; i < sblock.fs_ipg; i++, inumber++) {
- if (inumber < ROOTINO)
- continue;
- dp = getnextinode(inumber);
- if ((dp->di_mode & IFMT) == 0) {
- if (bcmp((char *)dp->di_db, (char *)zino.di_db,
- NDADDR * sizeof(daddr_t)) ||
- bcmp((char *)dp->di_ib, (char *)zino.di_ib,
- NIADDR * sizeof(daddr_t)) ||
- dp->di_mode || dp->di_size) {
- pfatal("PARTIALLY ALLOCATED INODE I=%lu",
- inumber);
- if (reply("CLEAR") == 1) {
- dp = ginode(inumber);
- clearinode(dp);
- inodirty();
- }
- }
- statemap[inumber] = USTATE;
- continue;
- }
- lastino = inumber;
- if (/* dp->di_size < 0 || */
- dp->di_size + sblock.fs_bsize - 1 < dp->di_size) {
- if (debug)
- printf("bad size %lu:", dp->di_size);
- goto unknown;
- }
- if (!preen && (dp->di_mode & IFMT) == IFMT &&
- reply("HOLD BAD BLOCK") == 1) {
- dp = ginode(inumber);
- dp->di_size = sblock.fs_fsize;
- dp->di_mode = IFREG|0600;
- inodirty();
- }
- ndb = howmany(dp->di_size, sblock.fs_bsize);
- if (ndb < 0) {
- if (debug)
- printf("bad size %lu ndb %d:",
- dp->di_size, ndb);
- goto unknown;
- }
- if ((dp->di_mode & IFMT) == IFBLK ||
- (dp->di_mode & IFMT) == IFCHR)
- ndb++;
- for (j = ndb; j < NDADDR; j++)
- if (dp->di_db[j] != 0) {
- if (debug)
- printf("bad direct addr: %ld\n",
- dp->di_db[j]);
- goto unknown;
- }
- for (j = 0, ndb -= NDADDR; ndb > 0; j++)
- ndb /= NINDIR(&sblock);
- for (; j < NIADDR; j++)
- if (dp->di_ib[j] != 0) {
- if (debug)
- printf("bad indirect addr: %ld\n",
- dp->di_ib[j]);
- goto unknown;
- }
- if (ftypeok(dp) == 0)
- goto unknown;
- n_files++;
- lncntp[inumber] = dp->di_nlink;
- if (dp->di_nlink <= 0) {
- zlnp = (struct zlncnt *)malloc(sizeof *zlnp);
- if (zlnp == NULL) {
- pfatal("LINK COUNT TABLE OVERFLOW");
- if (reply("CONTINUE") == 0)
- errexit("");
- } else {
- zlnp->zlncnt = inumber;
- zlnp->next = zlnhead;
- zlnhead = zlnp;
- }
- }
- if ((dp->di_mode & IFMT) == IFDIR) {
- if (dp->di_size == 0)
- statemap[inumber] = DCLEAR;
- else
- statemap[inumber] = DSTATE;
- cacheino(dp, inumber);
- } else
- statemap[inumber] = FSTATE;
- badblk = dupblk = 0;
- idesc.id_number = inumber;
- (void)ckinode(dp, &idesc);
- idesc.id_entryno *= btodb(sblock.fs_fsize);
- if (dp->di_blocks != idesc.id_entryno) {
- pwarn("INCORRECT BLOCK COUNT I=%lu (%ld should be %ld)",
- inumber, dp->di_blocks, idesc.id_entryno);
- if (preen)
- printf(" (CORRECTED)\n");
- else if (reply("CORRECT") == 0)
- continue;
- dp = ginode(inumber);
- dp->di_blocks = idesc.id_entryno;
- inodirty();
- }
- continue;
- unknown:
- pfatal("UNKNOWN FILE TYPE I=%lu", inumber);
- statemap[inumber] = FCLEAR;
- if (reply("CLEAR") == 1) {
- statemap[inumber] = USTATE;
- dp = ginode(inumber);
- clearinode(dp);
- inodirty();
- }
- }
- }
- freeinodebuf();
- }
-
- pass1check(idesc)
- register struct inodesc *idesc;
- {
- int res = KEEPON;
- int anyout, nfrags;
- daddr_t blkno = idesc->id_blkno;
- register struct dups *dlp;
- struct dups *new;
-
- if ((anyout = chkrange(blkno, idesc->id_numfrags)) != 0) {
- blkerror(idesc->id_number, "BAD", blkno);
- if (badblk++ >= MAXBAD) {
- pwarn("EXCESSIVE BAD BLKS I=%lu",
- idesc->id_number);
- if (preen)
- printf(" (SKIPPING)\n");
- else if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- }
- for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
- if (anyout && chkrange(blkno, 1)) {
- res = SKIP;
- } else if (!testbmap(blkno)) {
- n_blks++;
- setbmap(blkno);
- } else {
- blkerror(idesc->id_number, "DUP", blkno);
- if (dupblk++ >= MAXDUP) {
- pwarn("EXCESSIVE DUP BLKS I=%lu",
- idesc->id_number);
- if (preen)
- printf(" (SKIPPING)\n");
- else if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- new = (struct dups *)malloc(sizeof(struct dups));
- if (new == NULL) {
- pfatal("DUP TABLE OVERFLOW.");
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- new->dup = blkno;
- if (muldup == 0) {
- duplist = muldup = new;
- new->next = 0;
- } else {
- new->next = muldup->next;
- muldup->next = new;
- }
- for (dlp = duplist; dlp != muldup; dlp = dlp->next)
- if (dlp->dup == blkno)
- break;
- if (dlp == muldup && dlp->dup != blkno)
- muldup = new;
- }
- /*
- * count the number of blocks found in id_entryno
- */
- idesc->id_entryno++;
- }
- return (res);
- }
-