2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1980, 1986, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 static const char sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95";
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
40 #include <sys/param.h>
42 #include <sys/types.h>
43 #include <sys/sysctl.h>
45 #include <sys/disklabel.h>
46 #include <sys/ioctl.h>
49 #include <ufs/ufs/dinode.h>
50 #include <ufs/ufs/dir.h>
51 #include <ufs/ffs/fs.h>
67 static void slowio_start(void);
68 static void slowio_end(void);
69 static void printIOstats(void);
71 static long diskreads, totaldiskreads, totalreads; /* Disk cache statistics */
72 static struct timespec startpass, finishpass;
73 struct timeval slowio_starttime;
74 int slowio_delay_usec = 10000; /* Initial IO delay for background fsck */
76 static struct bufarea cgblk; /* backup buffer for cylinder group blocks */
77 static TAILQ_HEAD(buflist, bufarea) bufhead; /* head of buffer cache list */
78 static int numbufs; /* size of buffer cache */
79 static char *buftype[BT_NUMBUFTYPES] = BT_NAMES;
80 static struct bufarea *cgbufs; /* header for cylinder group cache */
81 static int flushtries; /* number of tries to reclaim memory */
86 diskreads = totaldiskreads = totalreads = 0;
87 bzero(&startpass, sizeof(struct timespec));
88 bzero(&finishpass, sizeof(struct timespec));
89 bzero(&slowio_starttime, sizeof(struct timeval));
90 slowio_delay_usec = 10000;
92 bzero(&cgblk, sizeof(struct bufarea));
101 ftypeok(union dinode *dp)
103 switch (DIP(dp, di_mode) & IFMT) {
116 printf("bad file type 0%o\n", DIP(dp, di_mode));
122 reply(const char *question)
128 pfatal("INTERNAL ERROR: GOT TO reply()");
129 persevere = !strcmp(question, "CONTINUE");
131 if (!persevere && (nflag || (fswritefd < 0 && bkgrdflag == 0))) {
132 printf("%s? no\n\n", question);
136 if (yflag || (persevere && nflag)) {
137 printf("%s? yes\n\n", question);
141 printf("%s? [yn] ", question);
142 (void) fflush(stdout);
144 while (c != '\n' && getc(stdin) != '\n') {
150 } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
152 if (c == 'y' || c == 'Y')
159 * Look up state information for an inode.
164 static struct inostat unallocated = { USTATE, 0, 0 };
165 struct inostatlist *ilp;
169 errx(EEXIT, "inoinfo: inumber %ju out of range",
171 ilp = &inostathead[inum / sblock.fs_ipg];
172 iloff = inum % sblock.fs_ipg;
173 if (iloff >= ilp->il_numalloced)
174 return (&unallocated);
175 return (&ilp->il_stat[iloff]);
179 * Malloc buffers and set up cache.
188 pbp = pdirbp = (struct bufarea *)0;
189 bufp = Malloc((unsigned int)sblock.fs_bsize);
191 errx(EEXIT, "cannot allocate buffer pool");
192 cgblk.b_un.b_buf = bufp;
193 initbarea(&cgblk, BT_CYLGRP);
194 TAILQ_INIT(&bufhead);
196 if (bufcnt < MINBUFS)
198 for (i = 0; i < bufcnt; i++) {
199 bp = (struct bufarea *)Malloc(sizeof(struct bufarea));
200 bufp = Malloc((unsigned int)sblock.fs_bsize);
201 if (bp == NULL || bufp == NULL) {
204 errx(EEXIT, "cannot allocate buffer pool");
206 bp->b_un.b_buf = bufp;
207 TAILQ_INSERT_HEAD(&bufhead, bp, b_list);
208 initbarea(bp, BT_UNKNOWN);
210 numbufs = i; /* save number of buffers */
211 for (i = 0; i < BT_NUMBUFTYPES; i++) {
212 readtime[i].tv_sec = totalreadtime[i].tv_sec = 0;
213 readtime[i].tv_nsec = totalreadtime[i].tv_nsec = 0;
214 readcnt[i] = totalreadcnt[i] = 0;
219 * Manage cylinder group buffers.
221 static struct bufarea *cgbufs; /* header for cylinder group cache */
222 static int flushtries; /* number of tries to reclaim memory */
227 struct bufarea *cgbp;
230 if (cgbufs == NULL) {
231 cgbufs = calloc(sblock.fs_ncg, sizeof(struct bufarea));
233 errx(EEXIT, "cannot allocate cylinder group buffers");
236 if (cgbp->b_un.b_cg != NULL)
240 cgp = malloc((unsigned int)sblock.fs_cgsize);
242 getblk(&cgblk, cgtod(&sblock, cg), sblock.fs_cgsize);
245 cgbp->b_un.b_cg = cgp;
246 initbarea(cgbp, BT_CYLGRP);
247 getblk(cgbp, cgtod(&sblock, cg), sblock.fs_cgsize);
252 * Mark a cylinder group buffer as dirty.
253 * Update its check-hash if they are enabled.
256 cgdirty(struct bufarea *cgbp)
260 cg = cgbp->b_un.b_cg;
261 if ((sblock.fs_metackhash & CK_CYLGRP) != 0) {
264 calculate_crc32c(~0L, (void *)cg, sblock.fs_cgsize);
270 * Attempt to flush a cylinder group cache entry.
271 * Return whether the flush was successful.
276 struct bufarea *cgbp;
278 if (flushtries == sblock.fs_ncg || cgbufs == NULL)
280 cgbp = &cgbufs[flushtries++];
281 if (cgbp->b_un.b_cg == NULL)
283 flush(fswritefd, cgbp);
284 free(cgbp->b_un.b_buf);
285 cgbp->b_un.b_buf = NULL;
290 * Manage a cache of directory blocks.
293 getdatablk(ufs2_daddr_t blkno, long size, int type)
297 TAILQ_FOREACH(bp, &bufhead, b_list)
298 if (bp->b_bno == fsbtodb(&sblock, blkno))
300 TAILQ_FOREACH_REVERSE(bp, &bufhead, buflist, b_list)
301 if ((bp->b_flags & B_INUSE) == 0)
304 errx(EEXIT, "deadlocked buffer pool");
306 getblk(bp, blkno, size);
309 if (debug && bp->b_type != type)
310 printf("Buffer type changed from %s to %s\n",
311 buftype[bp->b_type], buftype[type]);
312 TAILQ_REMOVE(&bufhead, bp, b_list);
313 TAILQ_INSERT_HEAD(&bufhead, bp, b_list);
314 bp->b_flags |= B_INUSE;
319 getblk(struct bufarea *bp, ufs2_daddr_t blk, long size)
322 struct timespec start, finish;
324 dblk = fsbtodb(&sblock, blk);
325 if (bp->b_bno == dblk) {
328 flush(fswritefd, bp);
330 readcnt[bp->b_type]++;
331 clock_gettime(CLOCK_REALTIME_PRECISE, &start);
333 bp->b_errs = blread(fsreadfd, bp->b_un.b_buf, dblk, size);
335 clock_gettime(CLOCK_REALTIME_PRECISE, &finish);
336 timespecsub(&finish, &start, &finish);
337 timespecadd(&readtime[bp->b_type], &finish,
338 &readtime[bp->b_type]);
346 flush(int fd, struct bufarea *bp)
353 pfatal("WRITING IN READ_ONLY MODE.\n");
357 pfatal("WRITING %sZERO'ED BLOCK %lld TO DISK\n",
358 (bp->b_errs == bp->b_size / dev_bsize) ? "" : "PARTIALLY ",
359 (long long)bp->b_bno);
362 * Write using the appropriate function.
364 switch (bp->b_type) {
367 pfatal("BUFFER %p DOES NOT MATCH SBLK %p\n",
369 if (sbput(fd, bp->b_un.b_fs, 0) == 0)
373 if (cgput(&disk, bp->b_un.b_cg) == 0)
377 blwrite(fd, bp->b_un.b_buf, bp->b_bno, bp->b_size);
383 rwerror(const char *mesg, ufs2_daddr_t blk)
390 pfatal("CANNOT %s: %ld", mesg, (long)blk);
391 if (reply("CONTINUE") == 0)
396 ckfini(int markclean)
398 struct bufarea *bp, *nbp;
399 int ofsmodified, cnt;
403 if ((!(sblock.fs_flags & FS_UNCLEAN)) != markclean) {
404 cmd.value = FS_UNCLEAN;
405 cmd.size = markclean ? -1 : 1;
406 if (sysctlbyname("vfs.ffs.setflags", 0, 0,
407 &cmd, sizeof cmd) == -1)
408 rwerror("SET FILE SYSTEM FLAGS", FS_UNCLEAN);
410 printf("\n***** FILE SYSTEM MARKED %s *****\n",
411 markclean ? "CLEAN" : "DIRTY");
415 } else if (!preen && !markclean) {
416 printf("\n***** FILE SYSTEM STILL DIRTY *****\n");
420 if (debug && totalreads > 0)
421 printf("cache with %d buffers missed %ld of %ld (%d%%)\n",
422 numbufs, totaldiskreads, totalreads,
423 (int)(totaldiskreads * 100 / totalreads));
425 (void)close(fsreadfd);
428 flush(fswritefd, &sblk);
429 if (havesb && cursnapshot == 0 && sblock.fs_magic == FS_UFS2_MAGIC &&
430 sblk.b_bno != sblock.fs_sblockloc / dev_bsize &&
431 !preen && reply("UPDATE STANDARD SUPERBLOCK")) {
432 /* Change the write destination to standard superblock */
433 sblock.fs_sblockactualloc = sblock.fs_sblockloc;
434 sblk.b_bno = sblock.fs_sblockloc / dev_bsize;
436 flush(fswritefd, &sblk);
438 flush(fswritefd, &cgblk);
439 free(cgblk.b_un.b_buf);
441 TAILQ_FOREACH_REVERSE_SAFE(bp, &bufhead, buflist, b_list, nbp) {
442 TAILQ_REMOVE(&bufhead, bp, b_list);
444 flush(fswritefd, bp);
445 free(bp->b_un.b_buf);
449 errx(EEXIT, "panic: lost %d buffers", numbufs - cnt);
450 if (cgbufs != NULL) {
451 for (cnt = 0; cnt < sblock.fs_ncg; cnt++) {
452 if (cgbufs[cnt].b_un.b_cg == NULL)
454 flush(fswritefd, &cgbufs[cnt]);
455 free(cgbufs[cnt].b_un.b_cg);
459 pbp = pdirbp = (struct bufarea *)0;
460 if (cursnapshot == 0 && sblock.fs_clean != markclean) {
461 if ((sblock.fs_clean = markclean) != 0) {
462 sblock.fs_flags &= ~(FS_UNCLEAN | FS_NEEDSFSCK);
463 sblock.fs_pendingblocks = 0;
464 sblock.fs_pendinginodes = 0;
467 ofsmodified = fsmodified;
468 flush(fswritefd, &sblk);
469 fsmodified = ofsmodified;
471 printf("\n***** FILE SYSTEM MARKED %s *****\n",
472 markclean ? "CLEAN" : "DIRTY");
478 printf("\n***** FILE SYSTEM IS CLEAN *****\n");
480 printf("\n***** FILE SYSTEM STILL DIRTY *****\n");
484 (void)close(fsreadfd);
485 (void)close(fswritefd);
489 * Print out I/O statistics.
498 if (diskreads == 0) {
499 printf("%s: no I/O\n\n", what);
502 if (startpass.tv_sec == 0)
503 startpass = startprog;
504 printf("%s: I/O statistics\n", what);
506 totaldiskreads += diskreads;
508 for (i = 0; i < BT_NUMBUFTYPES; i++) {
509 timespecadd(&totalreadtime[i], &readtime[i], &totalreadtime[i]);
510 totalreadcnt[i] += readcnt[i];
511 readtime[i].tv_sec = readtime[i].tv_nsec = 0;
514 clock_gettime(CLOCK_REALTIME_PRECISE, &startpass);
524 printf("Final I/O statistics\n");
525 totaldiskreads += diskreads;
526 diskreads = totaldiskreads;
527 startpass = startprog;
528 for (i = 0; i < BT_NUMBUFTYPES; i++) {
529 timespecadd(&totalreadtime[i], &readtime[i], &totalreadtime[i]);
530 totalreadcnt[i] += readcnt[i];
531 readtime[i] = totalreadtime[i];
532 readcnt[i] = totalreadcnt[i];
537 static void printIOstats(void)
539 long long msec, totalmsec;
542 clock_gettime(CLOCK_REALTIME_PRECISE, &finishpass);
543 timespecsub(&finishpass, &startpass, &finishpass);
544 printf("Running time: %jd.%03ld sec\n",
545 (intmax_t)finishpass.tv_sec, finishpass.tv_nsec / 1000000);
546 printf("buffer reads by type:\n");
547 for (totalmsec = 0, i = 0; i < BT_NUMBUFTYPES; i++)
548 totalmsec += readtime[i].tv_sec * 1000 +
549 readtime[i].tv_nsec / 1000000;
552 for (i = 0; i < BT_NUMBUFTYPES; i++) {
556 readtime[i].tv_sec * 1000 + readtime[i].tv_nsec / 1000000;
557 printf("%21s:%8ld %2ld.%ld%% %4jd.%03ld sec %2lld.%lld%%\n",
558 buftype[i], readcnt[i], readcnt[i] * 100 / diskreads,
559 (readcnt[i] * 1000 / diskreads) % 10,
560 (intmax_t)readtime[i].tv_sec, readtime[i].tv_nsec / 1000000,
561 msec * 100 / totalmsec, (msec * 1000 / totalmsec) % 10);
567 blread(int fd, char *buf, ufs2_daddr_t blk, long size)
579 if (lseek(fd, offset, 0) < 0)
580 rwerror("SEEK BLK", blk);
581 else if (read(fd, buf, (int)size) == size) {
588 * This is handled specially here instead of in rwerror because
589 * rwerror is used for all sorts of errors, not just true read/write
590 * errors. It should be refactored and fixed.
593 pfatal("CANNOT READ_BLK: %ld", (long)blk);
594 errx(EEXIT, "ABORTING DUE TO READ ERRORS");
596 rwerror("READ BLK", blk);
598 if (lseek(fd, offset, 0) < 0)
599 rwerror("SEEK BLK", blk);
601 memset(buf, 0, (size_t)size);
602 printf("THE FOLLOWING DISK SECTORS COULD NOT BE READ:");
603 for (cp = buf, i = 0; i < size; i += secsize, cp += secsize) {
604 if (read(fd, cp, (int)secsize) != secsize) {
605 (void)lseek(fd, offset + i + secsize, 0);
606 if (secsize != dev_bsize && dev_bsize != 1)
607 printf(" %jd (%jd),",
608 (intmax_t)(blk * dev_bsize + i) / secsize,
609 (intmax_t)blk + i / dev_bsize);
611 printf(" %jd,", (intmax_t)blk + i / dev_bsize);
622 blwrite(int fd, char *buf, ufs2_daddr_t blk, ssize_t size)
632 if (lseek(fd, offset, 0) < 0)
633 rwerror("SEEK BLK", blk);
634 else if (write(fd, buf, size) == size) {
639 rwerror("WRITE BLK", blk);
640 if (lseek(fd, offset, 0) < 0)
641 rwerror("SEEK BLK", blk);
642 printf("THE FOLLOWING SECTORS COULD NOT BE WRITTEN:");
643 for (cp = buf, i = 0; i < size; i += dev_bsize, cp += dev_bsize)
644 if (write(fd, cp, dev_bsize) != dev_bsize) {
645 (void)lseek(fd, offset + i + dev_bsize, 0);
646 printf(" %jd,", (intmax_t)blk + i / dev_bsize);
653 blerase(int fd, ufs2_daddr_t blk, long size)
659 ioarg[0] = blk * dev_bsize;
661 ioctl(fd, DIOCGDELETE, ioarg);
662 /* we don't really care if we succeed or not */
667 * Fill a contiguous region with all-zeroes. Note ZEROBUFSIZE is by
668 * definition a multiple of dev_bsize.
671 blzero(int fd, ufs2_daddr_t blk, long size)
679 zero = calloc(ZEROBUFSIZE, 1);
681 errx(EEXIT, "cannot allocate buffer pool");
683 offset = blk * dev_bsize;
684 if (lseek(fd, offset, 0) < 0)
685 rwerror("SEEK BLK", blk);
687 len = MIN(ZEROBUFSIZE, size);
688 if (write(fd, zero, len) != len)
689 rwerror("WRITE BLK", blk);
690 blk += len / dev_bsize;
696 * Verify cylinder group's magic number and other parameters. If the
697 * test fails, offer an option to rebuild the whole cylinder group.
700 check_cgmagic(int cg, struct bufarea *cgbp)
702 struct cg *cgp = cgbp->b_un.b_cg;
705 * Extended cylinder group checks.
707 if (cg_chkmagic(cgp) &&
708 ((sblock.fs_magic == FS_UFS1_MAGIC &&
709 cgp->cg_old_niblk == sblock.fs_ipg &&
710 cgp->cg_ndblk <= sblock.fs_fpg &&
711 cgp->cg_old_ncyl <= sblock.fs_old_cpg) ||
712 (sblock.fs_magic == FS_UFS2_MAGIC &&
713 cgp->cg_niblk == sblock.fs_ipg &&
714 cgp->cg_ndblk <= sblock.fs_fpg &&
715 cgp->cg_initediblk <= sblock.fs_ipg))) {
718 pfatal("CYLINDER GROUP %d: BAD MAGIC NUMBER", cg);
719 if (!reply("REBUILD CYLINDER GROUP")) {
720 printf("YOU WILL NEED TO RERUN FSCK.\n");
725 * Zero out the cylinder group and then initialize critical fields.
726 * Bit maps and summaries will be recalculated by later passes.
728 memset(cgp, 0, (size_t)sblock.fs_cgsize);
729 cgp->cg_magic = CG_MAGIC;
731 cgp->cg_niblk = sblock.fs_ipg;
732 cgp->cg_initediblk = MIN(sblock.fs_ipg, 2 * INOPB(&sblock));
733 if (cgbase(&sblock, cg) + sblock.fs_fpg < sblock.fs_size)
734 cgp->cg_ndblk = sblock.fs_fpg;
736 cgp->cg_ndblk = sblock.fs_size - cgbase(&sblock, cg);
737 cgp->cg_iusedoff = &cgp->cg_space[0] - (u_char *)(&cgp->cg_firstfield);
738 if (sblock.fs_magic == FS_UFS1_MAGIC) {
740 cgp->cg_initediblk = 0;
741 cgp->cg_old_ncyl = sblock.fs_old_cpg;
742 cgp->cg_old_niblk = sblock.fs_ipg;
743 cgp->cg_old_btotoff = cgp->cg_iusedoff;
744 cgp->cg_old_boff = cgp->cg_old_btotoff +
745 sblock.fs_old_cpg * sizeof(int32_t);
746 cgp->cg_iusedoff = cgp->cg_old_boff +
747 sblock.fs_old_cpg * sizeof(u_int16_t);
749 cgp->cg_freeoff = cgp->cg_iusedoff + howmany(sblock.fs_ipg, CHAR_BIT);
750 cgp->cg_nextfreeoff = cgp->cg_freeoff + howmany(sblock.fs_fpg,CHAR_BIT);
751 if (sblock.fs_contigsumsize > 0) {
752 cgp->cg_nclusterblks = cgp->cg_ndblk / sblock.fs_frag;
753 cgp->cg_clustersumoff =
754 roundup(cgp->cg_nextfreeoff, sizeof(u_int32_t));
755 cgp->cg_clustersumoff -= sizeof(u_int32_t);
756 cgp->cg_clusteroff = cgp->cg_clustersumoff +
757 (sblock.fs_contigsumsize + 1) * sizeof(u_int32_t);
758 cgp->cg_nextfreeoff = cgp->cg_clusteroff +
759 howmany(fragstoblks(&sblock, sblock.fs_fpg), CHAR_BIT);
766 * allocate a data block with the specified number of fragments
771 int i, j, k, cg, baseblk;
772 struct bufarea *cgbp;
775 if (frags <= 0 || frags > sblock.fs_frag)
777 for (i = 0; i < maxfsblock - sblock.fs_frag; i += sblock.fs_frag) {
778 for (j = 0; j <= sblock.fs_frag - frags; j++) {
781 for (k = 1; k < frags; k++)
782 if (testbmap(i + j + k))
788 cg = dtog(&sblock, i + j);
790 cgp = cgbp->b_un.b_cg;
791 if (!check_cgmagic(cg, cgbp))
793 baseblk = dtogd(&sblock, i + j);
794 for (k = 0; k < frags; k++) {
796 clrbit(cg_blksfree(cgp), baseblk + k);
799 if (frags == sblock.fs_frag)
800 cgp->cg_cs.cs_nbfree--;
802 cgp->cg_cs.cs_nffree -= frags;
811 * Free a previously allocated block
814 freeblk(ufs2_daddr_t blkno, long frags)
816 struct inodesc idesc;
818 idesc.id_blkno = blkno;
819 idesc.id_numfrags = frags;
820 (void)pass4check(&idesc);
823 /* Slow down IO so as to leave some disk bandwidth for other processes */
828 /* Delay one in every 8 operations */
829 slowio_pollcnt = (slowio_pollcnt + 1) & 7;
830 if (slowio_pollcnt == 0) {
831 gettimeofday(&slowio_starttime, NULL);
841 if (slowio_pollcnt != 0)
844 /* Update the slowdown interval. */
845 gettimeofday(&tv, NULL);
846 delay_usec = (tv.tv_sec - slowio_starttime.tv_sec) * 1000000 +
847 (tv.tv_usec - slowio_starttime.tv_usec);
850 if (delay_usec > 2500000)
851 delay_usec = 2500000;
852 slowio_delay_usec = (slowio_delay_usec * 63 + delay_usec) >> 6;
853 /* delay by 8 times the average IO delay */
854 if (slowio_delay_usec > 64)
855 usleep(slowio_delay_usec * 8);
862 getpathname(char *namebuf, ino_t curdir, ino_t ino)
866 struct inodesc idesc;
869 if (curdir == ino && ino == UFS_ROOTINO) {
870 (void)strcpy(namebuf, "/");
873 if (busy || !INO_IS_DVALID(curdir)) {
874 (void)strcpy(namebuf, "?");
878 memset(&idesc, 0, sizeof(struct inodesc));
879 idesc.id_type = DATA;
880 idesc.id_fix = IGNORE;
881 cp = &namebuf[MAXPATHLEN - 1];
884 idesc.id_parent = curdir;
887 while (ino != UFS_ROOTINO) {
888 idesc.id_number = ino;
889 idesc.id_func = findino;
890 idesc.id_name = strdup("..");
891 if ((ckinode(ginode(ino), &idesc) & FOUND) == 0)
894 idesc.id_number = idesc.id_parent;
895 idesc.id_parent = ino;
896 idesc.id_func = findname;
897 idesc.id_name = namebuf;
898 if ((ckinode(ginode(idesc.id_number), &idesc)&FOUND) == 0)
900 len = strlen(namebuf);
902 memmove(cp, namebuf, (size_t)len);
904 if (cp < &namebuf[UFS_MAXNAMLEN])
906 ino = idesc.id_number;
909 if (ino != UFS_ROOTINO)
911 memmove(namebuf, cp, (size_t)(&namebuf[MAXPATHLEN] - cp));
915 catch(int sig __unused)
923 * When preening, allow a single quit to signal
924 * a special exit after file system checks complete
925 * so that reboot sequence may be interrupted.
928 catchquit(int sig __unused)
930 printf("returning to single-user after file system check\n");
932 (void)signal(SIGQUIT, SIG_DFL);
936 * determine whether an inode should be fixed.
939 dofix(struct inodesc *idesc, const char *msg)
942 switch (idesc->id_fix) {
945 if (idesc->id_type == DATA)
946 direrror(idesc->id_number, msg);
950 printf(" (SALVAGED)\n");
954 if (reply("SALVAGE") == 0) {
955 idesc->id_fix = NOFIX;
969 errx(EEXIT, "UNKNOWN INODESC FIX MODE %d", idesc->id_fix);
978 * An unexpected inconsistency occurred.
979 * Die if preening or file system is running with soft dependency protocol,
980 * otherwise just print message and continue.
983 pfatal(const char *fmt, ...)
988 (void)vfprintf(stdout, fmt, ap);
991 (void)fprintf(stdout,
992 "\nUNEXPECTED SOFT UPDATE INCONSISTENCY\n");
994 * Force foreground fsck to clean up inconsistency.
997 cmd.value = FS_NEEDSFSCK;
999 if (sysctlbyname("vfs.ffs.setflags", 0, 0,
1000 &cmd, sizeof cmd) == -1)
1001 pwarn("CANNOT SET FS_NEEDSFSCK FLAG\n");
1002 fprintf(stdout, "CANNOT RUN IN BACKGROUND\n");
1008 if (cdevname == NULL)
1009 cdevname = strdup("fsck");
1010 (void)fprintf(stdout, "%s: ", cdevname);
1011 (void)vfprintf(stdout, fmt, ap);
1012 (void)fprintf(stdout,
1013 "\n%s: UNEXPECTED%sINCONSISTENCY; RUN fsck MANUALLY.\n",
1014 cdevname, usedsoftdep ? " SOFT UPDATE " : " ");
1016 * Force foreground fsck to clean up inconsistency.
1019 cmd.value = FS_NEEDSFSCK;
1021 if (sysctlbyname("vfs.ffs.setflags", 0, 0,
1022 &cmd, sizeof cmd) == -1)
1023 pwarn("CANNOT SET FS_NEEDSFSCK FLAG\n");
1030 * Pwarn just prints a message when not preening or running soft dependency
1031 * protocol, or a warning (preceded by filename) when preening.
1034 pwarn(const char *fmt, ...)
1039 (void)fprintf(stdout, "%s: ", cdevname);
1040 (void)vfprintf(stdout, fmt, ap);
1045 * Stub for routines from kernel.
1048 panic(const char *fmt, ...)
1052 pfatal("INTERNAL INCONSISTENCY:");
1053 (void)vfprintf(stdout, fmt, ap);