lib/ext2fs/tst_iscan.c

   1 /*
   2  * tst_inode.c --- this function tests the inode scan function
   3  *
   4  * Copyright (C) 1996 by Theodore Ts'o.
   5  *
   6  * %Begin-Header%
   7  * This file may be redistributed under the terms of the GNU Public
   8  * License.
   9  * %End-Header%
  10  */
  11
  12 #include <stdio.h>
  13 #include <string.h>
  14 #if HAVE_UNISTD_H
  15 #include <unistd.h>
  16 #endif
  17 #include <fcntl.h>
  18 #include <time.h>
  19 #include <sys/stat.h>
  20 #include <sys/types.h>
  21 #if HAVE_ERRNO_H
  22 #include <errno.h>
  23 #endif
  24
  25 #include "ext2_fs.h"
  26 #include "ext2fs.h"
  27
  28 blk_t test_vec[] = { 8, 12, 24, 34, 43, 44, 100, 0 };
  29
  30 ext2_filsys     test_fs;
  31 ext2fs_block_bitmap bad_block_map, touched_map;
  32 ext2fs_inode_bitmap bad_inode_map;
  33 badblocks_list  test_badblocks;
  34
  35 int first_no_comma = 1;
  36 int failed = 0;
  37
  38 static void test_read_blk(unsigned long block, int count, errcode_t err)
  39 {
  40         int     i;
  41
  42         if (first_no_comma)
  43                 first_no_comma = 0;
  44         else
  45                 printf(", ");
  46
  47         if (count > 1)
  48                 printf("%lu-%lu", block, block+count-1);
  49         else
  50                 printf("%lu", block);
  51
  52         for (i=0; i < count; i++, block++) {
  53                 if (ext2fs_test_block_bitmap(touched_map, block)) {
  54                         printf("\nDuplicate block?!? --- %lu\n", block);
  55                         failed++;
  56                         first_no_comma = 1;
  57                 }
  58                 ext2fs_mark_block_bitmap(touched_map, block);
  59         }
  60 }
  61
  62 /*
  63  * Setup the variables for doing the inode scan test.
  64  */
  65 static void setup(void)
  66 {
  67         errcode_t       retval;
  68         int             i;
  69         struct ext2_super_block param;
  70
  71         initialize_ext2_error_table();
  72
  73         memset(&param, 0, sizeof(param));
  74         param.s_blocks_count = 12000;
  75
  76
  77         test_io_cb_read_blk = test_read_blk;
  78
  79         retval = ext2fs_initialize("test fs", 0, &param,
  80                                    test_io_manager, &test_fs);
  81         if (retval) {
  82                 com_err("setup", retval,
  83                         "While initializing filesystem");
  84                 exit(1);
  85         }
  86         retval = ext2fs_allocate_tables(test_fs);
  87         if (retval) {
  88                 com_err("setup", retval,
  89                         "While allocating tables for test filesystem");
  90                 exit(1);
  91         }
  92         retval = ext2fs_allocate_block_bitmap(test_fs, "bad block map",
  93                                               &bad_block_map);
  94         if (retval) {
  95                 com_err("setup", retval,
  96                         "While allocating bad_block bitmap");
  97                 exit(1);
  98         }
  99         retval = ext2fs_allocate_block_bitmap(test_fs, "touched map",
 100                                               &touched_map);
 101         if (retval) {
 102                 com_err("setup", retval,
 103                         "While allocating touched block bitmap");
 104                 exit(1);
 105         }
 106         retval = ext2fs_allocate_inode_bitmap(test_fs, "bad inode map",
 107                                               &bad_inode_map);
 108         if (retval) {
 109                 com_err("setup", retval,
 110                         "While allocating bad inode bitmap");
 111                 exit(1);
 112         }
 113
 114         retval = ext2fs_badblocks_list_create(&test_badblocks, 5);
 115         if (retval) {
 116                 com_err("setup", retval, "while creating badblocks list");
 117                 exit(1);
 118         }
 119         for (i=0; test_vec[i]; i++) {
 120                 retval = ext2fs_badblocks_list_add(test_badblocks, test_vec[i]);
 121                 if (retval) {
 122                         com_err("setup", retval,
 123                                 "while adding test vector %d", i);
 124                         exit(1);
 125                 }
 126                 ext2fs_mark_block_bitmap(bad_block_map, test_vec[i]);
 127         }
 128         test_fs->badblocks = test_badblocks;
 129 }
 130
 131 /*
 132  * Iterate using inode_scan
 133  */
 134 static void iterate(void)
 135 {
 136         struct ext2_inode inode;
 137         ext2_inode_scan scan;
 138         errcode_t       retval;
 139         ext2_ino_t      ino;
 140
 141         retval = ext2fs_open_inode_scan(test_fs, 8, &scan);
 142         if (retval) {
 143                 com_err("iterate", retval, "While opening inode scan");
 144                 exit(1);
 145         }
 146         printf("Reading blocks: ");
 147         retval = ext2fs_get_next_inode(scan, &ino, &inode);
 148         if (retval) {
 149                 com_err("iterate", retval, "while reading first inode");
 150                 exit(1);
 151         }
 152         while (ino) {
 153                 retval = ext2fs_get_next_inode(scan, &ino, &inode);
 154                 if (retval == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
 155                         ext2fs_mark_inode_bitmap(bad_inode_map, ino);
 156                         continue;
 157                 }
 158                 if (retval) {
 159                         com_err("iterate", retval,
 160                                 "while getting next inode");
 161                         exit(1);
 162                 }
 163         }
 164         printf("\n");
 165         ext2fs_close_inode_scan(scan);
 166 }
 167
 168 /*
 169  * Verify the touched map
 170  */
 171 static void check_map(void)
 172 {
 173         int     i, j, first=1;
 174         unsigned long   blk;
 175
 176         for (i=0; test_vec[i]; i++) {
 177                 if (ext2fs_test_block_bitmap(touched_map, test_vec[i])) {
 178                         printf("Bad block was touched --- %u\n", test_vec[i]);
 179                         failed++;
 180                         first_no_comma = 1;
 181                 }
 182                 ext2fs_mark_block_bitmap(touched_map, test_vec[i]);
 183         }
 184         for (i = 0; i < test_fs->group_desc_count; i++) {
 185                 for (j=0, blk = test_fs->group_desc[i].bg_inode_table;
 186                      j < test_fs->inode_blocks_per_group;
 187                      j++, blk++) {
 188                         if (!ext2fs_test_block_bitmap(touched_map, blk) &&
 189                             !ext2fs_test_block_bitmap(bad_block_map, blk)) {
 190                                 printf("Missing block --- %lu\n", blk);
 191                                 failed++;
 192                         }
 193                 }
 194         }
 195         printf("Bad inodes: ");
 196         for (i=1; i <= test_fs->super->s_inodes_count; i++) {
 197                 if (ext2fs_test_inode_bitmap(bad_inode_map, i)) {
 198                         if (first)
 199                                 first = 0;
 200                         else
 201                                 printf(", ");
 202                         printf("%u", i);
 203                 }
 204         }
 205         printf("\n");
 206 }
 207
 208
 209 int main(int argc, char **argv)
 210 {
 211         setup();
 212         iterate();
 213         check_map();
 214         if (!failed)
 215                 printf("Inode scan tested OK!\n");
 216         return failed;
 217 }
 218