src/vfsck/pass4.c

   1 /*
   2  * Copyright (c) 1980, 1986 The Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms are permitted
   6  * provided that the above copyright notice and this paragraph are
   7  * duplicated in all such forms and that any documentation,
   8  * advertising materials, and other materials related to such
   9  * distribution and use acknowledge that the software was developed
  10  * by the University of California, Berkeley.  The name of the
  11  * University may not be used to endorse or promote products derived
  12  * from this software without specific prior written permission.
  13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  14  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  16  */
  17
  18 #include <afsconfig.h>
  19 #include <afs/param.h>
  20
  21 #include <roken.h>
  22
  23 #include <ctype.h>
  24
  25 #define VICE
  26 #ifdef  AFS_OSF_ENV
  27 #include <sys/vnode.h>
  28 #include <sys/mount.h>
  29 #include <ufs/inode.h>
  30 #include <ufs/fs.h>
  31 #define _BSD
  32 #define _KERNEL
  33 #include <ufs/dir.h>
  34 #undef  _KERNEL
  35 #undef  _BSD
  36 #else /* AFS_OSF_ENV */
  37 #ifdef AFS_VFSINCL_ENV
  38 #include <sys/vnode.h>
  39 #ifdef    AFS_SUN5_ENV
  40 #include <sys/fs/ufs_inode.h>
  41 #include <sys/fs/ufs_fs.h>
  42 #define _KERNEL
  43 #include <sys/fs/ufs_fsdir.h>
  44 #undef _KERNEL
  45 #include <sys/fs/ufs_mount.h>
  46 #else
  47 #include <ufs/inode.h>
  48 #include <ufs/fs.h>
  49 #endif
  50 #else /* AFS_VFSINCL_ENV */
  51 #include <sys/inode.h>
  52 #ifdef  AFS_HPUX_ENV
  53 #define LONGFILENAMES   1
  54 #include <sys/sysmacros.h>
  55 #include <sys/ino.h>
  56 #endif
  57 #include <sys/fs.h>
  58 #endif /* AFS_VFSINCL_ENV */
  59 #endif /* AFS_OSF_ENV */
  60 #include <afs/osi_inode.h>
  61
  62 #include "fsck.h"
  63
  64 int pass4check();
  65
  66 pass4()
  67 {
  68     ino_t inumber;
  69     struct zlncnt *zlnp;
  70     struct inodesc idesc;
  71     int n;
  72 #if defined(ACLS) && defined(AFS_HPUX_ENV)
  73     struct dinode *dp;
  74 #endif /* ACLS */
  75
  76
  77     memset(&idesc, 0, sizeof(struct inodesc));
  78     idesc.id_type = ADDR;
  79     idesc.id_func = pass4check;
  80     for (inumber = ROOTINO; inumber <= lastino; inumber++) {
  81         idesc.id_number = inumber;
  82 #if defined(ACLS) && defined(AFS_HPUX_ENV)
  83         switch (statemap[inumber] & STATE) {
  84 #else /* no ACLS */
  85         switch (statemap[inumber]) {
  86 #endif /* ACLS */
  87
  88         case FSTATE:
  89         case DFOUND:
  90             n = lncntp[inumber];
  91             if (n)
  92                 adjust(&idesc, (short)n);
  93             else {
  94                 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next)
  95                     if (zlnp->zlncnt == inumber) {
  96                         zlnp->zlncnt = zlnhead->zlncnt;
  97                         zlnp = zlnhead;
  98                         zlnhead = zlnhead->next;
  99                         free(zlnp);
 100                         clri(&idesc, "UNREF", 1);
 101                         break;
 102                     }
 103             }
 104             break;
 105
 106 #ifdef VICE
 107         case VSTATE:
 108             nViceFiles++;
 109             break;
 110 #endif /* VICE */
 111
 112         case DSTATE:
 113             clri(&idesc, "UNREF", 1);
 114             break;
 115
 116         case DCLEAR:
 117         case FCLEAR:
 118             clri(&idesc, "BAD/DUP", 1);
 119             break;
 120
 121         case USTATE:
 122             break;
 123
 124 #if defined(ACLS) && defined(AFS_HPUX_ENV)
 125             /*
 126              * UNreferenced continuation inode
 127              */
 128         case CSTATE:
 129             clri(&idesc, "UNREF", 2);
 130             break;
 131
 132             /*
 133              * referenced continuation inode
 134              */
 135         case CRSTATE:
 136             if ((dp = ginode(inumber)) == NULL)
 137                 break;
 138             if (dp->di_nlink != 1)
 139                 if (!qflag) {
 140                     pwarn("BAD LINK COUNT IN CONTINUATION INODE ");
 141                     pwarn("I=%u (%ld should be %ld)", inumber, dp->di_nlink,
 142                           1);
 143                     if (preen)
 144                         printf(" (CORRECTED)\n");
 145                     else {
 146                         if (reply("CORRECT") == 0)
 147                             continue;
 148                     }
 149                     dp->di_nlink = 1;
 150                     inodirty();
 151                 }
 152             break;
 153 #endif /* ACLS */
 154
 155         default:
 156             errexit("BAD STATE %d FOR INODE I=%d", statemap[inumber],
 157                     inumber);
 158         }
 159     }
 160 }
 161
 162 pass4check(idesc)
 163      struct inodesc *idesc;
 164 {
 165     struct dups *dlp;
 166     int nfrags, res = KEEPON;
 167     daddr_t blkno = idesc->id_blkno;
 168
 169     for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
 170         if (chkrange(blkno, 1)) {
 171             res = SKIP;
 172         } else if (testbmap(blkno)) {
 173             for (dlp = duplist; dlp; dlp = dlp->next) {
 174                 if (dlp->dup != blkno)
 175                     continue;
 176                 dlp->dup = duplist->dup;
 177                 dlp = duplist;
 178                 duplist = duplist->next;
 179                 free(dlp);
 180                 break;
 181             }
 182             if (dlp == 0) {
 183                 clrbmap(blkno);
 184                 n_blks--;
 185             }
 186         }
 187     }
 188     return (res);
 189 }