fsutil.c revision 96475
166864Sadrian/* 266864Sadrian * Copyright (c) 1980, 1986, 1993 366864Sadrian * The Regents of the University of California. All rights reserved. 466864Sadrian * 566864Sadrian * Redistribution and use in source and binary forms, with or without 666864Sadrian * modification, are permitted provided that the following conditions 766864Sadrian * are met: 866864Sadrian * 1. Redistributions of source code must retain the above copyright 966864Sadrian * notice, this list of conditions and the following disclaimer. 1066864Sadrian * 2. Redistributions in binary form must reproduce the above copyright 1166864Sadrian * notice, this list of conditions and the following disclaimer in the 1266864Sadrian * documentation and/or other materials provided with the distribution. 1366864Sadrian * 3. All advertising materials mentioning features or use of this software 1466864Sadrian * must display the following acknowledgement: 1566864Sadrian * This product includes software developed by the University of 1666864Sadrian * California, Berkeley and its contributors. 1766864Sadrian * 4. Neither the name of the University nor the names of its contributors 1866864Sadrian * may be used to endorse or promote products derived from this software 1966864Sadrian * without specific prior written permission. 2066864Sadrian * 2166864Sadrian * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2266864Sadrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2366864Sadrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2466864Sadrian * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2566864Sadrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2666864Sadrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2766864Sadrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2866864Sadrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2966864Sadrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3066864Sadrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3166864Sadrian * SUCH DAMAGE. 3266864Sadrian */ 3366864Sadrian 3466864Sadrian#ifndef lint 3566864Sadrian#if 0 3666864Sadrianstatic const char sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95"; 3766864Sadrian#endif 3866864Sadrianstatic const char rcsid[] = 3966866Sadrian "$FreeBSD: head/sbin/fsck_ffs/fsutil.c 96475 2002-05-12 20:49:41Z phk $"; 4066864Sadrian#endif /* not lint */ 4166864Sadrian 4266864Sadrian#include <sys/param.h> 4366864Sadrian#include <sys/types.h> 4486514Siedowse#include <sys/sysctl.h> 4566864Sadrian#include <sys/stat.h> 4696475Sphk#include <sys/disklabel.h> 4766864Sadrian 4866864Sadrian#include <ufs/ufs/dinode.h> 4966864Sadrian#include <ufs/ufs/dir.h> 5066864Sadrian#include <ufs/ffs/fs.h> 5166864Sadrian 5266864Sadrian#include <err.h> 5366864Sadrian#include <errno.h> 5466864Sadrian#include <string.h> 5566864Sadrian#include <ctype.h> 5666864Sadrian#include <fstab.h> 5766864Sadrian#include <stdio.h> 5866864Sadrian#include <stdlib.h> 5966864Sadrian#include <unistd.h> 6066864Sadrian 6166864Sadrian#include "fsck.h" 6266864Sadrian 6366864Sadrianlong diskreads, totalreads; /* Disk cache statistics */ 6466864Sadrian 6566864Sadrianint 6692839Simpftypeok(struct dinode *dp) 6766864Sadrian{ 6866864Sadrian switch (dp->di_mode & IFMT) { 6966864Sadrian 7066864Sadrian case IFDIR: 7166864Sadrian case IFREG: 7266864Sadrian case IFBLK: 7366864Sadrian case IFCHR: 7466864Sadrian case IFLNK: 7566864Sadrian case IFSOCK: 7666864Sadrian case IFIFO: 7766864Sadrian return (1); 7866864Sadrian 7966864Sadrian default: 8066864Sadrian if (debug) 8166864Sadrian printf("bad file type 0%o\n", dp->di_mode); 8266864Sadrian return (0); 8366864Sadrian } 8466864Sadrian} 8566864Sadrian 8666864Sadrianint 8792839Simpreply(char *question) 8866864Sadrian{ 8966864Sadrian int persevere; 9066864Sadrian char c; 9166864Sadrian 9266864Sadrian if (preen) 9366864Sadrian pfatal("INTERNAL ERROR: GOT TO reply()"); 9466864Sadrian persevere = !strcmp(question, "CONTINUE"); 9566864Sadrian printf("\n"); 9674556Smckusick if (!persevere && (nflag || (fswritefd < 0 && bkgrdflag == 0))) { 9766864Sadrian printf("%s? no\n\n", question); 9866864Sadrian resolved = 0; 9966864Sadrian return (0); 10066864Sadrian } 10166864Sadrian if (yflag || (persevere && nflag)) { 10266864Sadrian printf("%s? yes\n\n", question); 10366864Sadrian return (1); 10466864Sadrian } 10566864Sadrian do { 10666864Sadrian printf("%s? [yn] ", question); 10766864Sadrian (void) fflush(stdout); 10866864Sadrian c = getc(stdin); 10966864Sadrian while (c != '\n' && getc(stdin) != '\n') { 11066864Sadrian if (feof(stdin)) { 11166864Sadrian resolved = 0; 11266864Sadrian return (0); 11366864Sadrian } 11466864Sadrian } 11566864Sadrian } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N'); 11666864Sadrian printf("\n"); 11766864Sadrian if (c == 'y' || c == 'Y') 11866864Sadrian return (1); 11966864Sadrian resolved = 0; 12066864Sadrian return (0); 12166864Sadrian} 12266864Sadrian 12366864Sadrian/* 12466864Sadrian * Look up state information for an inode. 12566864Sadrian */ 12666864Sadrianstruct inostat * 12792839Simpinoinfo(ino_t inum) 12866864Sadrian{ 12966864Sadrian static struct inostat unallocated = { USTATE, 0, 0 }; 13066864Sadrian struct inostatlist *ilp; 13166864Sadrian int iloff; 13266864Sadrian 13366864Sadrian if (inum > maxino) 13466864Sadrian errx(EEXIT, "inoinfo: inumber %d out of range", inum); 13566864Sadrian ilp = &inostathead[inum / sblock.fs_ipg]; 13666864Sadrian iloff = inum % sblock.fs_ipg; 13766864Sadrian if (iloff >= ilp->il_numalloced) 13866864Sadrian return (&unallocated); 13966864Sadrian return (&ilp->il_stat[iloff]); 14066864Sadrian} 14166864Sadrian 14266864Sadrian/* 14366864Sadrian * Malloc buffers and set up cache. 14466864Sadrian */ 14566864Sadrianvoid 14692839Simpbufinit(void) 14766864Sadrian{ 14892806Sobrien struct bufarea *bp; 14966864Sadrian long bufcnt, i; 15066864Sadrian char *bufp; 15166864Sadrian 15266864Sadrian pbp = pdirbp = (struct bufarea *)0; 15366864Sadrian bufp = malloc((unsigned int)sblock.fs_bsize); 15466864Sadrian if (bufp == 0) 15566864Sadrian errx(EEXIT, "cannot allocate buffer pool"); 15666864Sadrian cgblk.b_un.b_buf = bufp; 15766864Sadrian initbarea(&cgblk); 15866864Sadrian bufhead.b_next = bufhead.b_prev = &bufhead; 15966864Sadrian bufcnt = MAXBUFSPACE / sblock.fs_bsize; 16066864Sadrian if (bufcnt < MINBUFS) 16166864Sadrian bufcnt = MINBUFS; 16266864Sadrian for (i = 0; i < bufcnt; i++) { 16366864Sadrian bp = (struct bufarea *)malloc(sizeof(struct bufarea)); 16466864Sadrian bufp = malloc((unsigned int)sblock.fs_bsize); 16566864Sadrian if (bp == NULL || bufp == NULL) { 16666864Sadrian if (i >= MINBUFS) 16766864Sadrian break; 16866864Sadrian errx(EEXIT, "cannot allocate buffer pool"); 16966864Sadrian } 17066864Sadrian bp->b_un.b_buf = bufp; 17166864Sadrian bp->b_prev = &bufhead; 17266864Sadrian bp->b_next = bufhead.b_next; 17366864Sadrian bufhead.b_next->b_prev = bp; 17466864Sadrian bufhead.b_next = bp; 17566864Sadrian initbarea(bp); 17666864Sadrian } 17766864Sadrian bufhead.b_size = i; /* save number of buffers */ 17866864Sadrian} 17966864Sadrian 18066864Sadrian/* 18166864Sadrian * Manage a cache of directory blocks. 18266864Sadrian */ 18366864Sadrianstruct bufarea * 18492839Simpgetdatablk(ufs_daddr_t blkno, long size) 18566864Sadrian{ 18692806Sobrien struct bufarea *bp; 18766864Sadrian 18866864Sadrian for (bp = bufhead.b_next; bp != &bufhead; bp = bp->b_next) 18966864Sadrian if (bp->b_bno == fsbtodb(&sblock, blkno)) 19066864Sadrian goto foundit; 19166864Sadrian for (bp = bufhead.b_prev; bp != &bufhead; bp = bp->b_prev) 19266864Sadrian if ((bp->b_flags & B_INUSE) == 0) 19366864Sadrian break; 19466864Sadrian if (bp == &bufhead) 19566864Sadrian errx(EEXIT, "deadlocked buffer pool"); 19666864Sadrian getblk(bp, blkno, size); 19766864Sadrian /* fall through */ 19866864Sadrianfoundit: 19966864Sadrian bp->b_prev->b_next = bp->b_next; 20066864Sadrian bp->b_next->b_prev = bp->b_prev; 20166864Sadrian bp->b_prev = &bufhead; 20266864Sadrian bp->b_next = bufhead.b_next; 20366864Sadrian bufhead.b_next->b_prev = bp; 20466864Sadrian bufhead.b_next = bp; 20566864Sadrian bp->b_flags |= B_INUSE; 20666864Sadrian return (bp); 20766864Sadrian} 20866864Sadrian 20966864Sadrianvoid 21092839Simpgetblk(struct bufarea *bp, ufs_daddr_t blk, long size) 21166864Sadrian{ 21266864Sadrian ufs_daddr_t dblk; 21366864Sadrian 21495897Smckusick totalreads++; 21566864Sadrian dblk = fsbtodb(&sblock, blk); 21666864Sadrian if (bp->b_bno != dblk) { 21766864Sadrian flush(fswritefd, bp); 21866864Sadrian diskreads++; 21966864Sadrian bp->b_errs = bread(fsreadfd, bp->b_un.b_buf, dblk, size); 22066864Sadrian bp->b_bno = dblk; 22166864Sadrian bp->b_size = size; 22266864Sadrian } 22366864Sadrian} 22466864Sadrian 22566864Sadrianvoid 22692839Simpflush(int fd, struct bufarea *bp) 22766864Sadrian{ 22892806Sobrien int i, j; 22966864Sadrian 23066864Sadrian if (!bp->b_dirty) 23166864Sadrian return; 23274556Smckusick bp->b_dirty = 0; 23374556Smckusick if (fswritefd < 0) { 23474556Smckusick pfatal("WRITING IN READ_ONLY MODE.\n"); 23574556Smckusick return; 23674556Smckusick } 23766864Sadrian if (bp->b_errs != 0) 23866864Sadrian pfatal("WRITING %sZERO'ED BLOCK %d TO DISK\n", 23966864Sadrian (bp->b_errs == bp->b_size / dev_bsize) ? "" : "PARTIALLY ", 24066864Sadrian bp->b_bno); 24166864Sadrian bp->b_errs = 0; 24266864Sadrian bwrite(fd, bp->b_un.b_buf, bp->b_bno, (long)bp->b_size); 24366864Sadrian if (bp != &sblk) 24466864Sadrian return; 24566864Sadrian for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) { 24671073Siedowse bwrite(fswritefd, (char *)sblock.fs_csp + i, 24766864Sadrian fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag), 24866864Sadrian sblock.fs_cssize - i < sblock.fs_bsize ? 24966864Sadrian sblock.fs_cssize - i : sblock.fs_bsize); 25066864Sadrian } 25166864Sadrian} 25266864Sadrian 25374556Smckusickvoid 25492839Simprwerror(char *mesg, ufs_daddr_t blk) 25566864Sadrian{ 25666864Sadrian 25775927Smckusick if (bkgrdcheck) 25875927Smckusick exit(EEXIT); 25966864Sadrian if (preen == 0) 26066864Sadrian printf("\n"); 26186514Siedowse pfatal("CANNOT %s: %ld", mesg, (long)blk); 26266864Sadrian if (reply("CONTINUE") == 0) 26366864Sadrian exit(EEXIT); 26466864Sadrian} 26566864Sadrian 26666864Sadrianvoid 26792839Simpckfini(int markclean) 26866864Sadrian{ 26992806Sobrien struct bufarea *bp, *nbp; 27066864Sadrian int ofsmodified, cnt = 0; 27166864Sadrian 27274556Smckusick if (bkgrdflag) { 27374556Smckusick unlink(snapname); 27474556Smckusick if ((!(sblock.fs_flags & FS_UNCLEAN)) != markclean) { 27574556Smckusick cmd.value = FS_UNCLEAN; 27674556Smckusick cmd.size = markclean ? -1 : 1; 27774556Smckusick if (sysctlbyname("vfs.ffs.setflags", 0, 0, 27874556Smckusick &cmd, sizeof cmd) == -1) 27974556Smckusick rwerror("SET FILESYSTEM FLAGS", FS_UNCLEAN); 28074556Smckusick if (!preen) { 28174556Smckusick printf("\n***** FILE SYSTEM MARKED %s *****\n", 28274556Smckusick markclean ? "CLEAN" : "DIRTY"); 28374556Smckusick if (!markclean) 28474556Smckusick rerun = 1; 28574556Smckusick } 28674556Smckusick } else if (!preen && !markclean) { 28774556Smckusick printf("\n***** FILE SYSTEM STILL DIRTY *****\n"); 28874556Smckusick rerun = 1; 28974556Smckusick } 29074556Smckusick } 29166864Sadrian if (fswritefd < 0) { 29266864Sadrian (void)close(fsreadfd); 29366864Sadrian return; 29466864Sadrian } 29566864Sadrian flush(fswritefd, &sblk); 29674556Smckusick if (havesb && sblk.b_bno != SBOFF / dev_bsize && cursnapshot == 0 && 29766864Sadrian !preen && reply("UPDATE STANDARD SUPERBLOCK")) { 29866864Sadrian sblk.b_bno = SBOFF / dev_bsize; 29966864Sadrian sbdirty(); 30066864Sadrian flush(fswritefd, &sblk); 30166864Sadrian } 30266864Sadrian flush(fswritefd, &cgblk); 30366864Sadrian free(cgblk.b_un.b_buf); 30466864Sadrian for (bp = bufhead.b_prev; bp && bp != &bufhead; bp = nbp) { 30566864Sadrian cnt++; 30666864Sadrian flush(fswritefd, bp); 30766864Sadrian nbp = bp->b_prev; 30866864Sadrian free(bp->b_un.b_buf); 30966864Sadrian free((char *)bp); 31066864Sadrian } 31166864Sadrian if (bufhead.b_size != cnt) 31266864Sadrian errx(EEXIT, "panic: lost %d buffers", bufhead.b_size - cnt); 31366864Sadrian pbp = pdirbp = (struct bufarea *)0; 31474556Smckusick if (cursnapshot == 0 && sblock.fs_clean != markclean) { 31575557Smckusick if ((sblock.fs_clean = markclean) != 0) 31675557Smckusick sblock.fs_flags &= ~(FS_UNCLEAN | FS_NEEDSFSCK); 31766864Sadrian sbdirty(); 31866864Sadrian ofsmodified = fsmodified; 31966864Sadrian flush(fswritefd, &sblk); 32066864Sadrian fsmodified = ofsmodified; 32166864Sadrian if (!preen) { 32266864Sadrian printf("\n***** FILE SYSTEM MARKED %s *****\n", 32366864Sadrian markclean ? "CLEAN" : "DIRTY"); 32466864Sadrian if (!markclean) 32566864Sadrian rerun = 1; 32666864Sadrian } 32766864Sadrian } else if (!preen && !markclean) { 32866864Sadrian printf("\n***** FILE SYSTEM STILL DIRTY *****\n"); 32966864Sadrian rerun = 1; 33066864Sadrian } 33175557Smckusick if (debug && totalreads > 0) 33266864Sadrian printf("cache missed %ld of %ld (%d%%)\n", diskreads, 33366864Sadrian totalreads, (int)(diskreads * 100 / totalreads)); 33466864Sadrian (void)close(fsreadfd); 33566864Sadrian (void)close(fswritefd); 33666864Sadrian} 33766864Sadrian 33866864Sadrianint 33992839Simpbread(int fd, char *buf, ufs_daddr_t blk, long size) 34066864Sadrian{ 34166864Sadrian char *cp; 34266864Sadrian int i, errs; 34366864Sadrian off_t offset; 34466864Sadrian 34566864Sadrian offset = blk; 34666864Sadrian offset *= dev_bsize; 34766864Sadrian if (lseek(fd, offset, 0) < 0) 34874556Smckusick rwerror("SEEK BLK", blk); 34966864Sadrian else if (read(fd, buf, (int)size) == size) 35066864Sadrian return (0); 35174556Smckusick rwerror("READ BLK", blk); 35266864Sadrian if (lseek(fd, offset, 0) < 0) 35374556Smckusick rwerror("SEEK BLK", blk); 35466864Sadrian errs = 0; 35566864Sadrian memset(buf, 0, (size_t)size); 35666864Sadrian printf("THE FOLLOWING DISK SECTORS COULD NOT BE READ:"); 35766864Sadrian for (cp = buf, i = 0; i < size; i += secsize, cp += secsize) { 35866864Sadrian if (read(fd, cp, (int)secsize) != secsize) { 35966864Sadrian (void)lseek(fd, offset + i + secsize, 0); 36066864Sadrian if (secsize != dev_bsize && dev_bsize != 1) 36166864Sadrian printf(" %ld (%ld),", 36266864Sadrian (blk * dev_bsize + i) / secsize, 36366864Sadrian blk + i / dev_bsize); 36466864Sadrian else 36566864Sadrian printf(" %ld,", blk + i / dev_bsize); 36666864Sadrian errs++; 36766864Sadrian } 36866864Sadrian } 36966864Sadrian printf("\n"); 37066864Sadrian if (errs) 37166864Sadrian resolved = 0; 37266864Sadrian return (errs); 37366864Sadrian} 37466864Sadrian 37566864Sadrianvoid 37692839Simpbwrite(int fd, char *buf, ufs_daddr_t blk, long size) 37766864Sadrian{ 37866864Sadrian int i; 37966864Sadrian char *cp; 38066864Sadrian off_t offset; 38166864Sadrian 38266864Sadrian if (fd < 0) 38366864Sadrian return; 38466864Sadrian offset = blk; 38566864Sadrian offset *= dev_bsize; 38666864Sadrian if (lseek(fd, offset, 0) < 0) 38774556Smckusick rwerror("SEEK BLK", blk); 38866864Sadrian else if (write(fd, buf, (int)size) == size) { 38966864Sadrian fsmodified = 1; 39066864Sadrian return; 39166864Sadrian } 39266864Sadrian resolved = 0; 39374556Smckusick rwerror("WRITE BLK", blk); 39466864Sadrian if (lseek(fd, offset, 0) < 0) 39574556Smckusick rwerror("SEEK BLK", blk); 39666864Sadrian printf("THE FOLLOWING SECTORS COULD NOT BE WRITTEN:"); 39766864Sadrian for (cp = buf, i = 0; i < size; i += dev_bsize, cp += dev_bsize) 39866864Sadrian if (write(fd, cp, (int)dev_bsize) != dev_bsize) { 39966864Sadrian (void)lseek(fd, offset + i + dev_bsize, 0); 40066864Sadrian printf(" %ld,", blk + i / dev_bsize); 40166864Sadrian } 40266864Sadrian printf("\n"); 40366864Sadrian return; 40466864Sadrian} 40566864Sadrian 40666864Sadrian/* 40766864Sadrian * allocate a data block with the specified number of fragments 40866864Sadrian */ 40966864Sadrianufs_daddr_t 41092839Simpallocblk(long frags) 41166864Sadrian{ 41266864Sadrian int i, j, k, cg, baseblk; 41366864Sadrian struct cg *cgp = &cgrp; 41466864Sadrian 41566864Sadrian if (frags <= 0 || frags > sblock.fs_frag) 41666864Sadrian return (0); 41766864Sadrian for (i = 0; i < maxfsblock - sblock.fs_frag; i += sblock.fs_frag) { 41866864Sadrian for (j = 0; j <= sblock.fs_frag - frags; j++) { 41966864Sadrian if (testbmap(i + j)) 42066864Sadrian continue; 42166864Sadrian for (k = 1; k < frags; k++) 42266864Sadrian if (testbmap(i + j + k)) 42366864Sadrian break; 42466864Sadrian if (k < frags) { 42566864Sadrian j += k; 42666864Sadrian continue; 42766864Sadrian } 42866864Sadrian cg = dtog(&sblock, i + j); 42966864Sadrian getblk(&cgblk, cgtod(&sblock, cg), sblock.fs_cgsize); 43066864Sadrian if (!cg_chkmagic(cgp)) 43166864Sadrian pfatal("CG %d: BAD MAGIC NUMBER\n", cg); 43266864Sadrian baseblk = dtogd(&sblock, i + j); 43366864Sadrian for (k = 0; k < frags; k++) { 43466864Sadrian setbmap(i + j + k); 43566864Sadrian clrbit(cg_blksfree(cgp), baseblk + k); 43666864Sadrian } 43766864Sadrian n_blks += frags; 43866864Sadrian if (frags == sblock.fs_frag) 43966864Sadrian cgp->cg_cs.cs_nbfree--; 44066864Sadrian else 44166864Sadrian cgp->cg_cs.cs_nffree -= frags; 44266864Sadrian cgdirty(); 44366864Sadrian return (i + j); 44466864Sadrian } 44566864Sadrian } 44666864Sadrian return (0); 44766864Sadrian} 44866864Sadrian 44966864Sadrian/* 45066864Sadrian * Free a previously allocated block 45166864Sadrian */ 45266864Sadrianvoid 45392839Simpfreeblk(ufs_daddr_t blkno, long frags) 45466864Sadrian{ 45566864Sadrian struct inodesc idesc; 45666864Sadrian 45766864Sadrian idesc.id_blkno = blkno; 45866864Sadrian idesc.id_numfrags = frags; 45966864Sadrian (void)pass4check(&idesc); 46066864Sadrian} 46166864Sadrian 46266864Sadrian/* 46366864Sadrian * Find a pathname 46466864Sadrian */ 46566864Sadrianvoid 46692839Simpgetpathname(char *namebuf, ino_t curdir, ino_t ino) 46766864Sadrian{ 46866864Sadrian int len; 46992806Sobrien char *cp; 47066864Sadrian struct inodesc idesc; 47166864Sadrian static int busy = 0; 47266864Sadrian 47366864Sadrian if (curdir == ino && ino == ROOTINO) { 47466864Sadrian (void)strcpy(namebuf, "/"); 47566864Sadrian return; 47666864Sadrian } 47766864Sadrian if (busy || 47866864Sadrian (inoinfo(curdir)->ino_state != DSTATE && 47966864Sadrian inoinfo(curdir)->ino_state != DFOUND)) { 48066864Sadrian (void)strcpy(namebuf, "?"); 48166864Sadrian return; 48266864Sadrian } 48366864Sadrian busy = 1; 48466864Sadrian memset(&idesc, 0, sizeof(struct inodesc)); 48566864Sadrian idesc.id_type = DATA; 48666864Sadrian idesc.id_fix = IGNORE; 48766864Sadrian cp = &namebuf[MAXPATHLEN - 1]; 48866864Sadrian *cp = '\0'; 48966864Sadrian if (curdir != ino) { 49066864Sadrian idesc.id_parent = curdir; 49166864Sadrian goto namelookup; 49266864Sadrian } 49366864Sadrian while (ino != ROOTINO) { 49466864Sadrian idesc.id_number = ino; 49566864Sadrian idesc.id_func = findino; 49666864Sadrian idesc.id_name = ".."; 49766864Sadrian if ((ckinode(ginode(ino), &idesc) & FOUND) == 0) 49866864Sadrian break; 49966864Sadrian namelookup: 50066864Sadrian idesc.id_number = idesc.id_parent; 50166864Sadrian idesc.id_parent = ino; 50266864Sadrian idesc.id_func = findname; 50366864Sadrian idesc.id_name = namebuf; 50466864Sadrian if ((ckinode(ginode(idesc.id_number), &idesc)&FOUND) == 0) 50566864Sadrian break; 50666864Sadrian len = strlen(namebuf); 50766864Sadrian cp -= len; 50866864Sadrian memmove(cp, namebuf, (size_t)len); 50966864Sadrian *--cp = '/'; 51066864Sadrian if (cp < &namebuf[MAXNAMLEN]) 51166864Sadrian break; 51266864Sadrian ino = idesc.id_number; 51366864Sadrian } 51466864Sadrian busy = 0; 51566864Sadrian if (ino != ROOTINO) 51666864Sadrian *--cp = '?'; 51766864Sadrian memmove(namebuf, cp, (size_t)(&namebuf[MAXPATHLEN] - cp)); 51866864Sadrian} 51966864Sadrian 52066864Sadrianvoid 52192839Simpcatch(int sig) 52266864Sadrian{ 52366864Sadrian if (!doinglevel2) 52466864Sadrian ckfini(0); 52566864Sadrian exit(12); 52666864Sadrian} 52766864Sadrian 52866864Sadrian/* 52966864Sadrian * When preening, allow a single quit to signal 53066864Sadrian * a special exit after filesystem checks complete 53166864Sadrian * so that reboot sequence may be interrupted. 53266864Sadrian */ 53366864Sadrianvoid 53492839Simpcatchquit(int sig) 53566864Sadrian{ 53666864Sadrian printf("returning to single-user after filesystem check\n"); 53766864Sadrian returntosingle = 1; 53866864Sadrian (void)signal(SIGQUIT, SIG_DFL); 53966864Sadrian} 54066864Sadrian 54166864Sadrian/* 54266864Sadrian * determine whether an inode should be fixed. 54366864Sadrian */ 54466864Sadrianint 54592839Simpdofix(struct inodesc *idesc, char *msg) 54666864Sadrian{ 54766864Sadrian 54866864Sadrian switch (idesc->id_fix) { 54966864Sadrian 55066864Sadrian case DONTKNOW: 55166864Sadrian if (idesc->id_type == DATA) 55266864Sadrian direrror(idesc->id_number, msg); 55366864Sadrian else 55481911Skris pwarn("%s", msg); 55566864Sadrian if (preen) { 55666864Sadrian printf(" (SALVAGED)\n"); 55766864Sadrian idesc->id_fix = FIX; 55866864Sadrian return (ALTERED); 55966864Sadrian } 56066864Sadrian if (reply("SALVAGE") == 0) { 56166864Sadrian idesc->id_fix = NOFIX; 56266864Sadrian return (0); 56366864Sadrian } 56466864Sadrian idesc->id_fix = FIX; 56566864Sadrian return (ALTERED); 56666864Sadrian 56766864Sadrian case FIX: 56866864Sadrian return (ALTERED); 56966864Sadrian 57066864Sadrian case NOFIX: 57166864Sadrian case IGNORE: 57266864Sadrian return (0); 57366864Sadrian 57466864Sadrian default: 57566864Sadrian errx(EEXIT, "UNKNOWN INODESC FIX MODE %d", idesc->id_fix); 57666864Sadrian } 57766864Sadrian /* NOTREACHED */ 57866864Sadrian return (0); 57966864Sadrian} 58066864Sadrian 58166864Sadrian#include <stdarg.h> 58266864Sadrian 58366864Sadrian/* 58466864Sadrian * An unexpected inconsistency occured. 58566864Sadrian * Die if preening or filesystem is running with soft dependency protocol, 58666864Sadrian * otherwise just print message and continue. 58766864Sadrian */ 58866864Sadrianvoid 58966864Sadrianpfatal(const char *fmt, ...) 59066864Sadrian{ 59166864Sadrian va_list ap; 59266864Sadrian va_start(ap, fmt); 59366864Sadrian if (!preen) { 59475927Smckusick (void)vfprintf(stdout, fmt, ap); 59566864Sadrian va_end(ap); 59666864Sadrian if (usedsoftdep) 59775927Smckusick (void)fprintf(stdout, 59866864Sadrian "\nUNEXPECTED SOFT UPDATE INCONSISTENCY\n"); 59975557Smckusick /* 60075557Smckusick * Force foreground fsck to clean up inconsistency. 60175557Smckusick */ 60275557Smckusick if (bkgrdflag) { 60375557Smckusick cmd.value = FS_NEEDSFSCK; 60475557Smckusick cmd.size = 1; 60575557Smckusick if (sysctlbyname("vfs.ffs.setflags", 0, 0, 60675557Smckusick &cmd, sizeof cmd) == -1) 60775557Smckusick pwarn("CANNOT SET FS_NEEDSFSCK FLAG\n"); 60875927Smckusick fprintf(stdout, "CANNOT RUN IN BACKGROUND\n"); 60975557Smckusick ckfini(0); 61075557Smckusick exit(EEXIT); 61175557Smckusick } 61266864Sadrian return; 61366864Sadrian } 61466864Sadrian if (cdevname == NULL) 61566864Sadrian cdevname = "fsck"; 61675927Smckusick (void)fprintf(stdout, "%s: ", cdevname); 61775927Smckusick (void)vfprintf(stdout, fmt, ap); 61875927Smckusick (void)fprintf(stdout, 61966864Sadrian "\n%s: UNEXPECTED%sINCONSISTENCY; RUN fsck MANUALLY.\n", 62066864Sadrian cdevname, usedsoftdep ? " SOFT UPDATE " : " "); 62175557Smckusick /* 62275557Smckusick * Force foreground fsck to clean up inconsistency. 62375557Smckusick */ 62475557Smckusick if (bkgrdflag) { 62575557Smckusick cmd.value = FS_NEEDSFSCK; 62675557Smckusick cmd.size = 1; 62775557Smckusick if (sysctlbyname("vfs.ffs.setflags", 0, 0, 62875557Smckusick &cmd, sizeof cmd) == -1) 62975557Smckusick pwarn("CANNOT SET FS_NEEDSFSCK FLAG\n"); 63075557Smckusick } 63166864Sadrian ckfini(0); 63266864Sadrian exit(EEXIT); 63366864Sadrian} 63466864Sadrian 63566864Sadrian/* 63666864Sadrian * Pwarn just prints a message when not preening or running soft dependency 63766864Sadrian * protocol, or a warning (preceded by filename) when preening. 63866864Sadrian */ 63966864Sadrianvoid 64066864Sadrianpwarn(const char *fmt, ...) 64166864Sadrian{ 64266864Sadrian va_list ap; 64366864Sadrian va_start(ap, fmt); 64466864Sadrian if (preen) 64575927Smckusick (void)fprintf(stdout, "%s: ", cdevname); 64675927Smckusick (void)vfprintf(stdout, fmt, ap); 64766864Sadrian va_end(ap); 64866864Sadrian} 64966864Sadrian 65066864Sadrian/* 65166864Sadrian * Stub for routines from kernel. 65266864Sadrian */ 65366864Sadrianvoid 65466864Sadrianpanic(const char *fmt, ...) 65566864Sadrian{ 65666864Sadrian va_list ap; 65766864Sadrian va_start(ap, fmt); 65866864Sadrian pfatal("INTERNAL INCONSISTENCY:"); 65975927Smckusick (void)vfprintf(stdout, fmt, ap); 66066864Sadrian va_end(ap); 66166864Sadrian exit(EEXIT); 66266864Sadrian} 663