sbin/fsck_ffs/pass4.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 1980, 1986, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  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.
  18  *
  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
  29  * SUCH DAMAGE.
  30  */
  31
  32 #if 0
  33 #ifndef lint
  34 static const char sccsid[] = "@(#)pass4.c       8.4 (Berkeley) 4/28/95";
  35 #endif /* not lint */
  36 #endif
  37 #include <sys/cdefs.h>
  38 __FBSDID("$FreeBSD$");
  39
  40 #include <sys/param.h>
  41
  42 #include <ufs/ufs/dinode.h>
  43 #include <ufs/ffs/fs.h>
  44
  45 #include <err.h>
  46 #include <stdint.h>
  47 #include <string.h>
  48
  49 #include "fsck.h"
  50
  51 void
  52 pass4(void)
  53 {
  54         ino_t inumber;
  55         union dinode *dp;
  56         struct inodesc idesc;
  57         int i, n, cg;
  58
  59         memset(&idesc, 0, sizeof(struct inodesc));
  60         idesc.id_type = ADDR;
  61         idesc.id_func = freeblock;
  62         for (cg = 0; cg < sblock.fs_ncg; cg++) {
  63                 if (got_siginfo) {
  64                         printf("%s: phase 4: cyl group %d of %d (%d%%)\n",
  65                             cdevname, cg, sblock.fs_ncg,
  66                             cg * 100 / sblock.fs_ncg);
  67                         got_siginfo = 0;
  68                 }
  69                 if (got_sigalarm) {
  70                         setproctitle("%s p4 %d%%", cdevname,
  71                             cg * 100 / sblock.fs_ncg);
  72                         got_sigalarm = 0;
  73                 }
  74                 inumber = cg * sblock.fs_ipg;
  75                 for (i = 0; i < inostathead[cg].il_numalloced; i++, inumber++) {
  76                         if (inumber < UFS_ROOTINO)
  77                                 continue;
  78                         idesc.id_number = inumber;
  79                         switch (inoinfo(inumber)->ino_state) {
  80
  81                         case FZLINK:
  82                         case DZLINK:
  83                                 if (inoinfo(inumber)->ino_linkcnt == 0) {
  84                                         clri(&idesc, "UNREF", 1);
  85                                         break;
  86                                 }
  87                                 /* fall through */
  88
  89                         case FSTATE:
  90                         case DFOUND:
  91                                 n = inoinfo(inumber)->ino_linkcnt;
  92                                 if (n) {
  93                                         adjust(&idesc, (short)n);
  94                                         break;
  95                                 }
  96                                 break;
  97
  98                         case DSTATE:
  99                                 clri(&idesc, "UNREF", 1);
 100                                 break;
 101
 102                         case DCLEAR:
 103                                 /* if on snapshot, already cleared */
 104                                 if (cursnapshot != 0)
 105                                         break;
 106                                 dp = ginode(inumber);
 107                                 if (DIP(dp, di_size) == 0) {
 108                                         clri(&idesc, "ZERO LENGTH", 1);
 109                                         break;
 110                                 }
 111                                 /* fall through */
 112                         case FCLEAR:
 113                                 clri(&idesc, "BAD/DUP", 1);
 114                                 break;
 115
 116                         case USTATE:
 117                                 break;
 118
 119                         default:
 120                                 errx(EEXIT, "BAD STATE %d FOR INODE I=%ju",
 121                                     inoinfo(inumber)->ino_state,
 122                                     (uintmax_t)inumber);
 123                         }
 124                 }
 125         }
 126 }