test_infree.c

   1 #include <stdio.h>
   2 #include "fsck.h"
   3 #include "fsck_helper.h"
   4 #include "sofs09.h"
   5
   6 testresult_t test_infree (void)
   7 {
   8     testresult_t ret;
   9     uint32_t fret;
  10     SOSuperBlock *sb;
  11     uint32_t ifree;
  12     SOInode inode;
  13     uint32_t inodeidx, previnodeidx;
  14     ic_t icstat;
  15
  16     ret = nice;
  17
  18     fetch_superblock(&sb);
  19
  20     ifree = 0;
  21     inodeidx = sb->ihead;
  22     previnodeidx = NULL_INODE;
  23     while (inodeidx != NULL_INODE) {
  24         if (inodeidx < sb->itotal) {
  25             ictable_get(inodeidx, &icstat);
  26             switch (icstat) {
  27                 case bah:
  28                     fret = soReadInode(&inode, inodeidx);
  29                     if (fret < 0) FABORT(fret, "test_infree");
  30                     ifree++;
  31                     ictable_set(inodeidx, idle);
  32                     break;
  33                 case busy:
  34                     printf("Inode number %u is marked as used and is in free"
  35                            "inode list.\n", inodeidx);
  36                     ret = corrupt;
  37                     break;
  38                 case idle:
  39                     printf("Free inode list closes over itself.\n");
  40                     return corrupt;
  41                     break;
  42                 default:
  43                     printf("BUM! ictable has something strange in it.\n");
  44                     return corrupt;
  45                     break;
  46             }
  47         } else {
  48             printf("Free inode list has a member pointing to %u, which is "
  49                    "outside the list.\n", inodeidx);
  50             return corrupt;
  51         }
  52
  53         /* check previous */
  54         if (inode.prev != previnodeidx) {
  55             printf("Prev of inode %u in free inode list is %u, should be %u.\n"
  56                     inodeidx, inode.prev, previnodeidx);
  57             ret = corrupt;
  58         }
  59
  60         previnodeidx = inodeidx;
  61         inodeidx = inode.next;
  62     }
  63
  64     /* check itail */
  65     if (previnodeidx != sb->itail) {
  66         printf("Itail is %u, should be %u.\n", sb->itail, previnodeidx);
  67         ret = corrupt;
  68     }
  69     if (ifree != sb->ifree) {
  70         printf("ifree is %u, should be %u.\n", sb->ifree, ifree);
  71         ret = corrupt;
  72     }
  73
  74     return ret;
  75 }