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 #include <sys/param.h>
  33 #include <sys/stat.h>
  34
  35 #include <ufs/ufs/dinode.h>
  36 #include <ufs/ffs/fs.h>
  37
  38 #include <err.h>
  39 #include <stdint.h>
  40 #include <string.h>
  41
  42 #include "fsck.h"
  43
  44 void
  45 pass4(void)
  46 {
  47         ino_t inumber;
  48         struct inode ip;
  49         struct inodesc idesc;
  50         int i, n, cg;
  51
  52         memset(&idesc, 0, sizeof(struct inodesc));
  53         idesc.id_func = freeblock;
  54         for (cg = 0; cg < sblock.fs_ncg; cg++) {
  55                 if (got_siginfo) {
  56                         printf("%s: phase 4: cyl group %d of %d (%d%%)\n",
  57                             cdevname, cg, sblock.fs_ncg,
  58                             cg * 100 / sblock.fs_ncg);
  59                         got_siginfo = 0;
  60                 }
  61                 if (got_sigalarm) {
  62                         setproctitle("%s p4 %d%%", cdevname,
  63                             cg * 100 / sblock.fs_ncg);
  64                         got_sigalarm = 0;
  65                 }
  66                 inumber = cg * sblock.fs_ipg;
  67                 for (i = 0; i < inostathead[cg].il_numalloced; i++, inumber++) {
  68                         if (inumber < UFS_ROOTINO)
  69                                 continue;
  70                         idesc.id_number = inumber;
  71                         idesc.id_type = inoinfo(inumber)->ino_idtype;
  72                         switch (inoinfo(inumber)->ino_state) {
  73
  74                         case FZLINK:
  75                         case DZLINK:
  76                                 if (inoinfo(inumber)->ino_linkcnt == 0) {
  77                                         clri(&idesc, "UNREF", 1);
  78                                         break;
  79                                 }
  80                                 /* fall through */
  81
  82                         case FSTATE:
  83                         case DFOUND:
  84                                 n = inoinfo(inumber)->ino_linkcnt;
  85                                 if (n) {
  86                                         adjust(&idesc, (short)n);
  87                                         break;
  88                                 }
  89                                 break;
  90
  91                         case DSTATE:
  92                                 clri(&idesc, "UNREF", 1);
  93                                 break;
  94
  95                         case DCLEAR:
  96                                 /* if on snapshot, already cleared */
  97                                 if (cursnapshot != 0)
  98                                         break;
  99                                 ginode(inumber, &ip);
 100                                 if (DIP(ip.i_dp, di_size) == 0) {
 101                                         clri(&idesc, "ZERO LENGTH", 1);
 102                                         irelse(&ip);
 103                                         break;
 104                                 }
 105                                 irelse(&ip);
 106                                 /* fall through */
 107                         case FCLEAR:
 108                                 clri(&idesc, "BAD/DUP", 1);
 109                                 break;
 110
 111                         case USTATE:
 112                                 break;
 113
 114                         default:
 115                                 errx(EEXIT, "BAD STATE %d FOR INODE I=%ju",
 116                                     inoinfo(inumber)->ino_state,
 117                                     (uintmax_t)inumber);
 118                         }
 119                 }
 120         }
 121 }